[PATCH] MIPS: Loongson64: Add Loongson-2K1000 reset support
Add power management register operations to support reboot and poweroff. Signed-off-by: Qing Zhang --- .../include/asm/mach-loongson64/loongson.h| 8 ++ arch/mips/loongson64/reset.c | 28 --- 2 files changed, 32 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index f7c3ab6d724e..9d254a7b438a 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -263,4 +263,12 @@ extern u64 loongson_freqctrl[MAX_PACKAGES]; #define LOONGSON_PCIMAP_WIN(WIN, ADDR) \ ADDR)>>26) & LOONGSON_PCIMAP_PCIMAP_LO0) << ((WIN)*6)) +/* Loongson-2K1000 Power management related registers */ +#definePM1_STS 0x0C /* Power Management1 Status Register */ +#definePM1_CNT 0x14 /* Power Management 1 Control Register */ +#defineRST_CNT 0x30 /* Reset Control Register */ +#defineSLP_TYP GENMASK(12, 10) /* Sleep Enable */ +#defineSLP_EN BIT(13) /* Soft Off */ +#defineACPI_OFF0x7000 + #endif /* __ASM_MACH_LOONGSON64_LOONGSON_H */ diff --git a/arch/mips/loongson64/reset.c b/arch/mips/loongson64/reset.c index 3bb8a1ed9348..b4348bf50538 100644 --- a/arch/mips/loongson64/reset.c +++ b/arch/mips/loongson64/reset.c @@ -18,9 +18,16 @@ static void loongson_restart(char *command) { - void (*fw_restart)(void) = (void *)loongson_sysconf.restart_addr; + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) { + unsigned long base; - fw_restart(); + base = CKSEG1ADDR(LOONGSON_REG_BASE) + ACPI_OFF; + writel(1, (void *)(base + RST_CNT)); + } else { + void (*fw_restart)(void) = (void *)loongson_sysconf.restart_addr; + + fw_restart(); + } while (1) { if (cpu_wait) cpu_wait(); @@ -29,9 +36,22 @@ static void loongson_restart(char *command) static void loongson_poweroff(void) { - void (*fw_poweroff)(void) = (void *)loongson_sysconf.poweroff_addr; - fw_poweroff(); + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) { + unsigned long base; + unsigned int acpi_ctrl; + + base = CKSEG1ADDR(LOONGSON_REG_BASE) + ACPI_OFF; + acpi_ctrl = readl((void *)(base + PM1_STS)); + acpi_ctrl &= 0x; + writel(acpi_ctrl, (void *)(base + PM1_STS)); + acpi_ctrl = SLP_EN | SLP_TYP; + writel(acpi_ctrl, (void *)(base + PM1_CNT)); + } else { + void (*fw_poweroff)(void) = (void *)loongson_sysconf.poweroff_addr; + + fw_poweroff(); + } while (1) { if (cpu_wait) cpu_wait(); -- 2.31.0
[PATCH] MIPS: Loongson64: enable CONFIG_USB_SERIAL_PL2303
When using the Loongson-3A4000 machine for serial port debugging, there is no /dev/ttyUSB* output, which makes the serial port unavailable, For convenience, we open this configuration. zhangqing@loongson-pc:~$ cat /sys/firmware/lefi/boardinfo Board Info Manufacturer: THTF Board Name : THTF-LS3A4000-7A1000-ML4A Family : LOONGSON3 BIOS Info Vendor : ZD tech Version : ZD tech-V2.1.1 ROM Size: 4 KB Release Date: 2020-06-29 zhangqing@loongson-pc:~$ lsusb Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse Bus 005 Device 002: ID 0c45:760b Microdia USB Keyboard Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 003: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Signed-off-by: Qing Zhang --- arch/mips/configs/loongson3_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 77f6a3551f46..a18609cf0e5e 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -320,6 +320,7 @@ CONFIG_USB_OHCI_HCD=y CONFIG_USB_UHCI_HCD=m CONFIG_USB_STORAGE=m CONFIG_USB_SERIAL=m +CONFIG_USB_SERIAL_PL2303=m CONFIG_USB_SERIAL_OPTION=m CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_CMOS=y -- 2.31.0
[PATCH v5 2/7] MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI
Add DTB boot support, only support Loongson-2K1000 processor for now, determine whether to use the built-in DTB or the DTB from the firmware by checking the range of CKSEG0 and XKPHYS. loongson_fw_interface will be used in the future. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v4-v5: - Remake the patch based on the latest changes arch/mips/include/asm/mach-loongson64/loongson.h | 9 - arch/mips/loongson64/env.c | 13 - arch/mips/loongson64/init.c | 16 ++-- 3 files changed, 34 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index 6189deb188cf..f7c3ab6d724e 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -12,8 +12,14 @@ #include #include +enum loongson_fw_interface { + LOONGSON_LEFI, + LOONGSON_DTB, +}; + /* machine-specific boot configuration */ struct loongson_system_configuration { + enum loongson_fw_interface fw_interface; u32 nr_cpus; u32 nr_nodes; int cores_per_node; @@ -41,7 +47,8 @@ extern u32 memsize, highmemsize; extern const struct plat_smp_ops loongson3_smp_ops; /* loongson-specific command line, env and memory initialization */ -extern void __init prom_init_env(void); +extern void __init prom_dtb_init_env(void); +extern void __init prom_lefi_init_env(void); extern void __init szmem(unsigned int node); extern void *loongson_fdt_blob; diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c index 1821d461b606..c8bb75d58f17 100644 --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -43,7 +43,18 @@ const char *get_system_type(void) return "Generic Loongson64 System"; } -void __init prom_init_env(void) + +void __init prom_dtb_init_env(void) +{ + if ((fw_arg2 < CKSEG0 || fw_arg2 > CKSEG1) + && (fw_arg2 < XKPHYS || fw_arg2 > XKSEG)) + + loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin; + else + loongson_fdt_blob = (void *)fw_arg2; +} + +void __init prom_lefi_init_env(void) { struct boot_params *boot_p; struct loongson_params *loongson_p; diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index cfa788bca871..ed280b73bf89 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -52,6 +52,10 @@ void __init szmem(unsigned int node) static unsigned long num_physpages; u64 node_id, node_psize, start_pfn, end_pfn, mem_start, mem_size; + /* Otherwise come from DTB */ + if (loongson_sysconf.fw_interface != LOONGSON_LEFI) + return; + /* Parse memory information and activate */ for (i = 0; i < loongson_memmap->nr_map; i++) { node_id = loongson_memmap->map[i].node_id; @@ -94,12 +98,20 @@ static void __init prom_init_memory(void) void __init prom_init(void) { fw_init_cmdline(); - prom_init_env(); + + if (fw_arg2 == 0 || (fdt_magic(fw_arg2) == FDT_MAGIC)) { + loongson_sysconf.fw_interface = LOONGSON_DTB; + prom_dtb_init_env(); + } else { + loongson_sysconf.fw_interface = LOONGSON_LEFI; + prom_lefi_init_env(); + } /* init base address of io space */ set_io_port_base(PCI_IOBASE); - loongson_sysconf.early_config(); + if (loongson_sysconf.early_config) + loongson_sysconf.early_config(); #ifdef CONFIG_NUMA prom_init_numa_memory(); -- 2.20.1
[PATCH v5 7/7] MIPS: Loongson64: Add a Loongson-2K1000 default config file
Add default config for Loongson-2K1000. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v4-v5: - No change arch/mips/configs/loongson2k_defconfig | 353 + 1 file changed, 353 insertions(+) create mode 100644 arch/mips/configs/loongson2k_defconfig diff --git a/arch/mips/configs/loongson2k_defconfig b/arch/mips/configs/loongson2k_defconfig new file mode 100644 index ..e948ca487e2d --- /dev/null +++ b/arch/mips/configs/loongson2k_defconfig @@ -0,0 +1,353 @@ +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_KERNEL_LZMA=y +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_AUDIT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_MEMCG=y +CONFIG_BLK_CGROUP=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_SYSFS_DEPRECATED=y +CONFIG_RELAY=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +CONFIG_MACH_LOONGSON64=y +# CONFIG_CPU_LOONGSON3_CPUCFG_EMULATION is not set +CONFIG_HZ_256=y +CONFIG_MIPS32_O32=y +CONFIG_MIPS32_N32=y +CONFIG_MODULES=y +CONFIG_MODULE_FORCE_LOAD=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_MQ_IOSCHED_DEADLINE=m +CONFIG_IOSCHED_BFQ=y +CONFIG_BFQ_GROUP_IOSCHED=y +CONFIG_BINFMT_MISC=m +CONFIG_KSM=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=y +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_NETFILTER=y +CONFIG_NETFILTER_NETLINK_LOG=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_DCCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_IP_VS=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_IP_SCTP=m +CONFIG_L2TP=m +CONFIG_BRIDGE=m +CONFIG_CFG80211=m +CONFIG_CFG80211_WEXT=y +CONFIG_MAC80211=m +CONFIG_RFKILL=m +CONFIG_RFKILL_INPUT=y +CONFIG_PCIEPORTBUS=y +CONFIG_HOTPLUG_PCI_PCIE=y +CONFIG_PCIEASPM_PERFORMANCE=y +CONFIG_HOTPLUG_PCI=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_MTD=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=y +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_SIZE=8192 +CONFIG_RAID_ATTRS=m +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_DEV_SR=y +CONFIG_CHR_DEV_SG=y +CONFIG_CHR_DEV_SCH=m +CONFIG_SCSI_CONSTANTS=y +CONFIG_SCSI_LOGGING=y +CONFIG_SCSI_SPI_ATTRS=m +CONFIG_SCSI_FC_ATTRS=m +CONFIG_ISCSI_TCP=m +CONFIG_MEGARAID_NEWGEN=y +CONFIG_MEGARAID_MM=y +CONFIG_MEGARAID_MAILBOX=y +CONFIG_MEGARAID_LEGACY=y +CONFIG_MEGARAID_SAS=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_PATA_ATIIXP=y +CONFIG_MD=y +CONFIG_BLK_DEV_MD=m +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_MD_RAID1=m +CONFIG_MD_RAID10=m +CONFIG_MD_RAID456=m +CONFIG_MD_MULTIPATH=m +CONFIG_BLK_DEV_DM=m +CONFIG_DM_CRYPT=m +CONFIG_DM_SNAPSHOT=m +CONFIG_DM_MIRROR=m +CONFIG_DM_ZERO=m +CONFIG_TARGET_CORE=m +CONFIG_TCM_IBLOCK=m +CONFIG_TCM_FILEIO=m +CONFIG_TCM_PSCSI=m +CONFIG_LOOPBACK_TARGET=m +CONFIG_ISCSI_TARGET=m +CONFIG_NETDEVICES=y +CONFIG_TUN=m +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_NET_VENDOR_ADAPTEC is not set +# CONFIG_NET_VENDOR_ALTEON is not set +# CONFIG_NET_VENDOR_AMD is not set +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_VENDOR_ATHEROS is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_BROCADE is not set +# CONFIG_NET_VENDOR_CHELSIO is not set +# CONFIG_NET_VENDOR_CIRRUS is not set +# CONFIG_NET_VENDOR_CISCO is not set +# CONFIG_NET_VENDOR_DEC is not set +# CONFIG_NET_VENDOR_DLINK is not set +# CONFIG_NET_VENDOR_EMULEX is not set +# CONFIG_NET_VENDOR_I825XX is not set +CONFIG_E1000=y +CONFIG_E1000E=y +CONFIG_IGB=y +CONFIG_IXGB=y +CONFIG_IXGBE=y +# CONFIG_NET_VENDOR_MARVELL is not set +# CONFIG_NET_VENDOR_MELLANOX is not set +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_MICROCHIP is not set +# CONFIG_NET_VENDOR_MICROSEMI is not set +# CONFIG_NET_VENDOR_MYRI is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_NETERION is not set +# CONFIG_NET_VENDOR_NETRONOME is not set +# CONFIG_NET_VENDOR_NI is not set +# CONFIG_NET_VENDOR_NVIDIA is not
[PATCH v5 5/7] irqchip/loongson-liointc: irqchip add 2.0 version
Add IO interrupt controller support for Loongson-2K1000, different from the Loongson-3A series is that Loongson-2K1000 has 64 interrupt sources, 0-31 correspond to the device tree liointc0 device node, and the other correspond to liointc1 node. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v4-v5: - No change drivers/irqchip/irq-loongson-liointc.c | 58 ++ 1 file changed, 49 insertions(+), 9 deletions(-) diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c index 249566a23cc4..8ccb30421806 100644 --- a/drivers/irqchip/irq-loongson-liointc.c +++ b/drivers/irqchip/irq-loongson-liointc.c @@ -20,6 +20,7 @@ #define LIOINTC_CHIP_IRQ 32 #define LIOINTC_NUM_PARENT 4 +#define LIOINTC_NUM_CORES 4 #define LIOINTC_INTC_CHIP_START0x20 @@ -42,6 +43,7 @@ struct liointc_handler_data { struct liointc_priv { struct irq_chip_generic *gc; struct liointc_handler_data handler[LIOINTC_NUM_PARENT]; + void __iomem*core_isr[LIOINTC_NUM_CORES]; u8 map_cache[LIOINTC_CHIP_IRQ]; boolhas_lpc_irq_errata; }; @@ -51,11 +53,12 @@ static void liointc_chained_handle_irq(struct irq_desc *desc) struct liointc_handler_data *handler = irq_desc_get_handler_data(desc); struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip_generic *gc = handler->priv->gc; + int core = get_ebase_cpunum() % LIOINTC_NUM_CORES; u32 pending; chained_irq_enter(chip, desc); - pending = readl(gc->reg_base + LIOINTC_REG_INTC_STATUS); + pending = readl(handler->priv->core_isr[core]); if (!pending) { /* Always blame LPC IRQ if we have that bug */ @@ -141,6 +144,18 @@ static void liointc_resume(struct irq_chip_generic *gc) } static const char * const parent_names[] = {"int0", "int1", "int2", "int3"}; +static const char * const core_reg_names[] = {"isr0", "isr1", "isr2", "isr3"}; + +static void __iomem *liointc_get_reg_byname(struct device_node *node, + const char *name) +{ + int index = of_property_match_string(node, "reg-names", name); + + if (index < 0) + return NULL; + + return of_iomap(node, index); +} static int __init liointc_of_init(struct device_node *node, struct device_node *parent) @@ -159,10 +174,28 @@ static int __init liointc_of_init(struct device_node *node, if (!priv) return -ENOMEM; - base = of_iomap(node, 0); - if (!base) { - err = -ENODEV; - goto out_free_priv; + if (of_device_is_compatible(node, "loongson,liointc-2.0")) { + base = liointc_get_reg_byname(node, "main"); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + + for (i = 0; i < LIOINTC_NUM_CORES; i++) + priv->core_isr[i] = liointc_get_reg_byname(node, core_reg_names[i]); + if (!priv->core_isr[0]) { + err = -ENODEV; + goto out_iounmap_base; + } + } else { + base = of_iomap(node, 0); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + + for (i = 0; i < LIOINTC_NUM_CORES; i++) + priv->core_isr[i] = base + LIOINTC_REG_INTC_STATUS; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) { @@ -172,7 +205,7 @@ static int __init liointc_of_init(struct device_node *node, } if (!have_parent) { err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } sz = of_property_read_variable_u32_array(node, @@ -183,7 +216,7 @@ static int __init liointc_of_init(struct device_node *node, if (sz < 4) { pr_err("loongson-liointc: No parent_int_map\n"); err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) @@ -195,7 +228,7 @@ static int __init liointc_of_init(struct device_node *node, if (!domain) { pr_err("loongson-liointc: cannot add IRQ domain\n"); err = -EINVAL; - goto out_iounmap; + goto out_iounmap_isr; } err = irq_alloc_domain_generic_chips(domain, 32, 1, @@ -260,7 +293,13 @@ static int __init liointc_of_init(struct device_node *node, out_free_domain: irq_domai
[PATCH v5 3/7] MIPS: Loongson64: Add support for the Loongson-2K1000 to get cpu_clock_freq
Get the fixed-clock from the CPU0 node of the device tree. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v4-v5: - Delete clk initializer arch/mips/loongson64/time.c | 24 1 file changed, 24 insertions(+) diff --git a/arch/mips/loongson64/time.c b/arch/mips/loongson64/time.c index 91e842b58365..f6d2c1e30570 100644 --- a/arch/mips/loongson64/time.c +++ b/arch/mips/loongson64/time.c @@ -11,9 +11,33 @@ #include #include +#include +#include void __init plat_time_init(void) { + struct clk *clk; + struct device_node *np; + + if (loongson_sysconf.fw_interface == LOONGSON_DTB) { + of_clk_init(NULL); + + np = of_get_cpu_node(0, NULL); + if (!np) { + pr_err("Failed to get CPU node\n"); + return; + } + + clk = of_clk_get(np, 0); + if (IS_ERR(clk)) { + pr_err("Failed to get CPU clock: %ld\n", PTR_ERR(clk)); + return; + } + + cpu_clock_freq = clk_get_rate(clk); + clk_put(clk); + } + /* setup mips r4k timer */ mips_hpt_frequency = cpu_clock_freq / 2; -- 2.20.1
[PATCH v5 4/7] MIPS: Loongson64: Add Loongson-2K1000 early_printk_port
Distinguish between Loongson-3A series CPU and Loongson-2K1000 CPU UART0. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v4-v5: - No change arch/mips/loongson64/init.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index ed280b73bf89..d5a1eddb8202 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -120,7 +120,10 @@ void __init prom_init(void) #endif /* Hardcode to CPU UART 0 */ - setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE), 0, 1024); + else + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); register_smp_ops(&loongson3_smp_ops); board_nmi_handler_setup = mips_nmi_setup; -- 2.20.1
[PATCH v5 0/7] Add basic support for Loongson-2K1000
These patches support single-core DTS boot to the serial port login interface, which can be operated using conventional commands. I have successfully tested it on the Loongson 2K1000 machine. pmon: http://cgit.loongnix.org/cgit/pmon-loongson3/ Note: After the basic support is merged, I will commit SMP and other driver support in the future. Qing Zhang (7): MIPS: Loongson64: DeviceTree for Loongson-2K1000 MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI MIPS: Loongson64: Add support for the Loongson-2K1000 to get cpu_clock_freq MIPS: Loongson64: Add Loongson-2K1000 early_printk_port irqchip/loongson-liointc: irqchip add 2.0 version dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC MIPS: Loongson64: Add a Loongson-2K1000 default config file .../loongson,liointc.yaml | 36 +- arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 .../dts/loongson/loongson64_2core_2k1000.dts | 10 + arch/mips/configs/loongson2k_defconfig| 353 ++ .../asm/mach-loongson64/builtin_dtbs.h| 1 + .../include/asm/mach-loongson64/loongson.h| 9 +- arch/mips/loongson64/env.c| 13 +- arch/mips/loongson64/init.c | 21 +- arch/mips/loongson64/time.c | 24 ++ drivers/irqchip/irq-loongson-liointc.c| 58 ++- 11 files changed, 751 insertions(+), 18 deletions(-) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts create mode 100644 arch/mips/configs/loongson2k_defconfig -- 2.20.1
[PATCH v5 1/7] MIPS: Loongson64: DeviceTree for Loongson-2K1000
Add DeviceTree files for Loongson-2K1000 processor, currently only supports single-core boot. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v4-v5: - No change arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 ++ .../dts/loongson/loongson64_2core_2k1000.dts | 10 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + 4 files changed, 255 insertions(+) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile index 8fd0efb37423..72267bfda9b4 100644 --- a/arch/mips/boot/dts/loongson/Makefile +++ b/arch/mips/boot/dts/loongson/Makefile @@ -1,4 +1,5 @@ # SPDX_License_Identifier: GPL_2.0 +dtb-$(CONFIG_MACH_LOONGSON64) += loongson64_2core_2k1000.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_ls7a.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_rs780e.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_8core_rs780e.dtb diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi new file mode 100644 index ..fd0e99bfe57b --- /dev/null +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi @@ -0,0 +1,243 @@ +// SPDX-License-Identifier: GPL-3.0 + +/dts-v1/; + +#include + +/ { + compatible = "loongson,loongson2k1000"; + + #address-cells = <2>; + #size-cells = <2>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "loongson,gs264"; + reg = <0x0>; + #clock-cells = <1>; + clocks = <&cpu_clk>; + }; + }; + + memory { + compatible = "memory"; + device_type = "memory"; + reg = <0x 0x0020 0x 0x0ee0>, /* 238 MB at 2 MB */ + <0x 0x2000 0x 0x1f00>, /* 496 MB at 512 MB */ + <0x0001 0x1000 0x0001 0xb000>; /* 6912 MB at 4352MB */ + }; + + cpu_clk: cpu_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <8>; + }; + + cpuintc: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + compatible = "mti,cpu-interrupt-controller"; + }; + + package0: bus@1000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0 0x1000 0 0x1000 0 0x1000 /* ioports */ + 0 0x4000 0 0x4000 0 0x4000 + 0xfe 0x 0xfe 0x 0 0x4000>; + + liointc0: interrupt-controller@1fe11400 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11400 0 0x40>, + <0 0x1fe11040 0 0x8>, + <0 0x1fe11140 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <2>; + interrupt-names = "int0"; + + loongson,parent_int_map = <0x>, /* int0 */ + <0x>, /* int1 */ + <0x>, /* int2 */ + <0x>; /* int3 */ + }; + + liointc1: interrupt-controller@1fe11440 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11440 0 0x40>, + <0 0x1fe11048 0 0x8>, + <0 0x1fe11148 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <3>; + interrupt-names = "int1"; +
[PATCH v5 6/7] dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC
Add liointc-2.0 properties support, so update the maxItems and condition description. Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v4-v5: - Add reg condition description .../loongson,liointc.yaml | 36 --- 1 file changed, 32 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml index f38e0113f360..067165c4b836 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml @@ -10,9 +10,9 @@ maintainers: - Jiaxun Yang description: | - This interrupt controller is found in the Loongson-3 family of chips as the primary - package interrupt controller which can route local I/O interrupt to interrupt lines - of cores. + This interrupt controller is found in the Loongson-3 family of chips and + Loongson-2K1000 chip, as the primary package interrupt controller which + can route local I/O interrupt to interrupt lines of cores. allOf: - $ref: /schemas/interrupt-controller.yaml# @@ -22,9 +22,17 @@ properties: oneOf: - const: loongson,liointc-1.0 - const: loongson,liointc-1.0a + - const: loongson,liointc-2.0 reg: -maxItems: 1 +minItems: 1 +maxItems: 3 + + reg-names: +items: + - const: main + - const: isr0 + - const: isr1 interrupt-controller: true @@ -69,6 +77,26 @@ required: unevaluatedProperties: false +if: + properties: +compatible: + contains: +enum: + - loongson,liointc-2.0 + +then: + properties: +reg: + minItems: 3 + + required: +- reg-names + +else: + properties: +reg: + maxItems: 1 + examples: - | iointc: interrupt-controller@3ff01400 { -- 2.20.1
[PATCH v4 3/7] MIPS: Loongson64: Add support for the Loongson-2K1000 to get cpu_clock_freq
Get the fixed-clock from the CPU0 node of the device tree. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v3-v4: Standard submission of information Add return after error arch/mips/loongson64/time.c | 24 1 file changed, 24 insertions(+) diff --git a/arch/mips/loongson64/time.c b/arch/mips/loongson64/time.c index 91e842b58365..2d84f9b20a9b 100644 --- a/arch/mips/loongson64/time.c +++ b/arch/mips/loongson64/time.c @@ -11,9 +11,33 @@ #include #include +#include +#include void __init plat_time_init(void) { + struct clk *clk = NULL; + struct device_node *np; + + if (loongson_sysconf.fw_interface == LOONGSON_DTB) { + of_clk_init(NULL); + + np = of_get_cpu_node(0, NULL); + if (!np) { + pr_err("Failed to get CPU node\n"); + return; + } + + clk = of_clk_get(np, 0); + if (IS_ERR(clk)) { + pr_err("Failed to get CPU clock: %ld\n", PTR_ERR(clk)); + return; + } + + cpu_clock_freq = clk_get_rate(clk); + clk_put(clk); + } + /* setup mips r4k timer */ mips_hpt_frequency = cpu_clock_freq / 2; -- 2.20.1
[PATCH v4 2/7] MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI
Add DTB boot support, only support Loongson-2K1000 processor for now, determine whether to use the built-in DTB or the DTB from the firmware by checking the range of CKSEG0 and XKPHYS. loongson_fw_interface will be used in the future. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v3-v4: Standard submission of information Fix error handling .../include/asm/mach-loongson64/boot_param.h | 6 ++ arch/mips/include/asm/mach-loongson64/loongson.h | 3 ++- arch/mips/loongson64/env.c | 13 - arch/mips/loongson64/init.c | 16 ++-- 4 files changed, 34 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h index 4592841b6b0c..43737401dc06 100644 --- a/arch/mips/include/asm/mach-loongson64/boot_param.h +++ b/arch/mips/include/asm/mach-loongson64/boot_param.h @@ -198,7 +198,13 @@ enum loongson_bridge_type { VIRTUAL = 3 }; +enum loongson_fw_interface { + LOONGSON_LEFI, + LOONGSON_DTB, +}; + struct loongson_system_configuration { + enum loongson_fw_interface fw_interface; u32 nr_cpus; u32 nr_nodes; int cores_per_node; diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index ac1c20e172a2..3f885fa26ba6 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -23,7 +23,8 @@ extern u32 memsize, highmemsize; extern const struct plat_smp_ops loongson3_smp_ops; /* loongson-specific command line, env and memory initialization */ -extern void __init prom_init_env(void); +extern void __init prom_dtb_init_env(void); +extern void __init prom_lefi_init_env(void); extern void __init szmem(unsigned int node); extern void *loongson_fdt_blob; diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c index 51a5d050a94c..e7d3a06175e3 100644 --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -43,7 +43,18 @@ const char *get_system_type(void) return "Generic Loongson64 System"; } -void __init prom_init_env(void) + +void __init prom_dtb_init_env(void) +{ + if ((fw_arg2 < CKSEG0 || fw_arg2 > CKSEG1) + && (fw_arg2 < XKPHYS || fw_arg2 > XKSEG)) + + loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin; + else + loongson_fdt_blob = (void *)fw_arg2; +} + +void __init prom_lefi_init_env(void) { struct boot_params *boot_p; struct loongson_params *loongson_p; diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index cfa788bca871..ed280b73bf89 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -52,6 +52,10 @@ void __init szmem(unsigned int node) static unsigned long num_physpages; u64 node_id, node_psize, start_pfn, end_pfn, mem_start, mem_size; + /* Otherwise come from DTB */ + if (loongson_sysconf.fw_interface != LOONGSON_LEFI) + return; + /* Parse memory information and activate */ for (i = 0; i < loongson_memmap->nr_map; i++) { node_id = loongson_memmap->map[i].node_id; @@ -94,12 +98,20 @@ static void __init prom_init_memory(void) void __init prom_init(void) { fw_init_cmdline(); - prom_init_env(); + + if (fw_arg2 == 0 || (fdt_magic(fw_arg2) == FDT_MAGIC)) { + loongson_sysconf.fw_interface = LOONGSON_DTB; + prom_dtb_init_env(); + } else { + loongson_sysconf.fw_interface = LOONGSON_LEFI; + prom_lefi_init_env(); + } /* init base address of io space */ set_io_port_base(PCI_IOBASE); - loongson_sysconf.early_config(); + if (loongson_sysconf.early_config) + loongson_sysconf.early_config(); #ifdef CONFIG_NUMA prom_init_numa_memory(); -- 2.20.1
[PATCH v4 4/7] MIPS: Loongson64: Add Loongson-2K1000 early_printk_port
Distinguish between Loongson-3A series CPU and Loongson-2K1000 CPU UART0. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v3-v4: Standard submission of information arch/mips/loongson64/init.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index ed280b73bf89..d5a1eddb8202 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -120,7 +120,10 @@ void __init prom_init(void) #endif /* Hardcode to CPU UART 0 */ - setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE), 0, 1024); + else + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); register_smp_ops(&loongson3_smp_ops); board_nmi_handler_setup = mips_nmi_setup; -- 2.20.1
[PATCH v4 6/7] dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC
Add liointc-2.0 properties support, so update the maxItems and description. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v3-v4: Standard submission of information .../bindings/interrupt-controller/loongson,liointc.yaml| 7 --- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml index f38e0113f360..5280cf60a9a7 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml @@ -10,9 +10,9 @@ maintainers: - Jiaxun Yang description: | - This interrupt controller is found in the Loongson-3 family of chips as the primary - package interrupt controller which can route local I/O interrupt to interrupt lines - of cores. + This interrupt controller is found in the Loongson-3 family of chips and + Loongson-2K1000 chip, as the primary package interrupt controller which + can route local I/O interrupt to interrupt lines of cores. allOf: - $ref: /schemas/interrupt-controller.yaml# @@ -22,6 +22,7 @@ properties: oneOf: - const: loongson,liointc-1.0 - const: loongson,liointc-1.0a + - const: loongson,liointc-2.0 reg: maxItems: 1 -- 2.20.1
[PATCH v4 0/7] Add basic support for Loongson-2K1000
These patches support single-core DTS boot to the serial port login interface, which can be operated using conventional commands. I have successfully tested it on the Loongson 2K1000 machine. pmon: http://cgit.loongnix.org/cgit/pmon-loongson3/ Note: After the basic support is merged, I will submit SMP and other peripheral support in the future. Qing Zhang (7): MIPS: Loongson64: DeviceTree for Loongson-2K1000 MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI MIPS: Loongson64: Add support for the Loongson-2K1000 to get cpu_clock_freq MIPS: Loongson64: Add Loongson-2K1000 early_printk_port irqchip/loongson-liointc: irqchip add 2.0 version dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC MIPS: Loongson64: Add a Loongson-2K1000 default config file .../loongson,liointc.yaml | 7 +- arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 .../dts/loongson/loongson64_2core_2k1000.dts | 10 + arch/mips/configs/loongson2k_defconfig| 353 ++ .../include/asm/mach-loongson64/boot_param.h | 6 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + .../include/asm/mach-loongson64/loongson.h| 3 +- arch/mips/loongson64/env.c| 13 +- arch/mips/loongson64/init.c | 21 +- arch/mips/loongson64/time.c | 24 ++ drivers/irqchip/irq-loongson-liointc.c| 58 ++- 12 files changed, 723 insertions(+), 17 deletions(-) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts create mode 100644 arch/mips/configs/loongson2k_defconfig -- 2.20.1
[PATCH v4 7/7] MIPS: Loongson64: Add a Loongson-2K1000 default config file
Add default config for Loongson-2K1000. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v3-v4: Standard submission of information arch/mips/configs/loongson2k_defconfig | 353 + 1 file changed, 353 insertions(+) create mode 100644 arch/mips/configs/loongson2k_defconfig diff --git a/arch/mips/configs/loongson2k_defconfig b/arch/mips/configs/loongson2k_defconfig new file mode 100644 index ..e948ca487e2d --- /dev/null +++ b/arch/mips/configs/loongson2k_defconfig @@ -0,0 +1,353 @@ +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_KERNEL_LZMA=y +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_AUDIT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_MEMCG=y +CONFIG_BLK_CGROUP=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_SYSFS_DEPRECATED=y +CONFIG_RELAY=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +CONFIG_MACH_LOONGSON64=y +# CONFIG_CPU_LOONGSON3_CPUCFG_EMULATION is not set +CONFIG_HZ_256=y +CONFIG_MIPS32_O32=y +CONFIG_MIPS32_N32=y +CONFIG_MODULES=y +CONFIG_MODULE_FORCE_LOAD=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_MQ_IOSCHED_DEADLINE=m +CONFIG_IOSCHED_BFQ=y +CONFIG_BFQ_GROUP_IOSCHED=y +CONFIG_BINFMT_MISC=m +CONFIG_KSM=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=y +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_NETFILTER=y +CONFIG_NETFILTER_NETLINK_LOG=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_DCCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_IP_VS=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_IP_SCTP=m +CONFIG_L2TP=m +CONFIG_BRIDGE=m +CONFIG_CFG80211=m +CONFIG_CFG80211_WEXT=y +CONFIG_MAC80211=m +CONFIG_RFKILL=m +CONFIG_RFKILL_INPUT=y +CONFIG_PCIEPORTBUS=y +CONFIG_HOTPLUG_PCI_PCIE=y +CONFIG_PCIEASPM_PERFORMANCE=y +CONFIG_HOTPLUG_PCI=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_MTD=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=y +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_SIZE=8192 +CONFIG_RAID_ATTRS=m +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_DEV_SR=y +CONFIG_CHR_DEV_SG=y +CONFIG_CHR_DEV_SCH=m +CONFIG_SCSI_CONSTANTS=y +CONFIG_SCSI_LOGGING=y +CONFIG_SCSI_SPI_ATTRS=m +CONFIG_SCSI_FC_ATTRS=m +CONFIG_ISCSI_TCP=m +CONFIG_MEGARAID_NEWGEN=y +CONFIG_MEGARAID_MM=y +CONFIG_MEGARAID_MAILBOX=y +CONFIG_MEGARAID_LEGACY=y +CONFIG_MEGARAID_SAS=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_PATA_ATIIXP=y +CONFIG_MD=y +CONFIG_BLK_DEV_MD=m +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_MD_RAID1=m +CONFIG_MD_RAID10=m +CONFIG_MD_RAID456=m +CONFIG_MD_MULTIPATH=m +CONFIG_BLK_DEV_DM=m +CONFIG_DM_CRYPT=m +CONFIG_DM_SNAPSHOT=m +CONFIG_DM_MIRROR=m +CONFIG_DM_ZERO=m +CONFIG_TARGET_CORE=m +CONFIG_TCM_IBLOCK=m +CONFIG_TCM_FILEIO=m +CONFIG_TCM_PSCSI=m +CONFIG_LOOPBACK_TARGET=m +CONFIG_ISCSI_TARGET=m +CONFIG_NETDEVICES=y +CONFIG_TUN=m +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_NET_VENDOR_ADAPTEC is not set +# CONFIG_NET_VENDOR_ALTEON is not set +# CONFIG_NET_VENDOR_AMD is not set +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_VENDOR_ATHEROS is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_BROCADE is not set +# CONFIG_NET_VENDOR_CHELSIO is not set +# CONFIG_NET_VENDOR_CIRRUS is not set +# CONFIG_NET_VENDOR_CISCO is not set +# CONFIG_NET_VENDOR_DEC is not set +# CONFIG_NET_VENDOR_DLINK is not set +# CONFIG_NET_VENDOR_EMULEX is not set +# CONFIG_NET_VENDOR_I825XX is not set +CONFIG_E1000=y +CONFIG_E1000E=y +CONFIG_IGB=y +CONFIG_IXGB=y +CONFIG_IXGBE=y +# CONFIG_NET_VENDOR_MARVELL is not set +# CONFIG_NET_VENDOR_MELLANOX is not set +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_MICROCHIP is not set +# CONFIG_NET_VENDOR_MICROSEMI is not set +# CONFIG_NET_VENDOR_MYRI is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_NETERION is not set +# CONFIG_NET_VENDOR_NETRONOME is not set +# CONFIG_NET_VENDOR_NI is not set
[PATCH v4 1/7] MIPS: Loongson64: DeviceTree for Loongson-2K1000
Add DeviceTree files for Loongson-2K1000 processor,currently only supports single-core boot. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v3-v4: Standard submission of information arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 ++ .../dts/loongson/loongson64_2core_2k1000.dts | 10 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + 4 files changed, 255 insertions(+) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile index 8fd0efb37423..72267bfda9b4 100644 --- a/arch/mips/boot/dts/loongson/Makefile +++ b/arch/mips/boot/dts/loongson/Makefile @@ -1,4 +1,5 @@ # SPDX_License_Identifier: GPL_2.0 +dtb-$(CONFIG_MACH_LOONGSON64) += loongson64_2core_2k1000.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_ls7a.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_rs780e.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_8core_rs780e.dtb diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi new file mode 100644 index ..fd0e99bfe57b --- /dev/null +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi @@ -0,0 +1,243 @@ +// SPDX-License-Identifier: GPL-3.0 + +/dts-v1/; + +#include + +/ { + compatible = "loongson,loongson2k1000"; + + #address-cells = <2>; + #size-cells = <2>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "loongson,gs264"; + reg = <0x0>; + #clock-cells = <1>; + clocks = <&cpu_clk>; + }; + }; + + memory { + compatible = "memory"; + device_type = "memory"; + reg = <0x 0x0020 0x 0x0ee0>, /* 238 MB at 2 MB */ + <0x 0x2000 0x 0x1f00>, /* 496 MB at 512 MB */ + <0x0001 0x1000 0x0001 0xb000>; /* 6912 MB at 4352MB */ + }; + + cpu_clk: cpu_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <8>; + }; + + cpuintc: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + compatible = "mti,cpu-interrupt-controller"; + }; + + package0: bus@1000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0 0x1000 0 0x1000 0 0x1000 /* ioports */ + 0 0x4000 0 0x4000 0 0x4000 + 0xfe 0x 0xfe 0x 0 0x4000>; + + liointc0: interrupt-controller@1fe11400 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11400 0 0x40>, + <0 0x1fe11040 0 0x8>, + <0 0x1fe11140 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <2>; + interrupt-names = "int0"; + + loongson,parent_int_map = <0x>, /* int0 */ + <0x>, /* int1 */ + <0x>, /* int2 */ + <0x>; /* int3 */ + }; + + liointc1: interrupt-controller@1fe11440 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11440 0 0x40>, + <0 0x1fe11048 0 0x8>, + <0 0x1fe11148 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <3>; + i
[PATCH v4 5/7] irqchip/loongson-liointc: irqchip add 2.0 version
Add IO interrupt controller support for Loongson-2K1000, different from the Loongson-3A series is that 2K1000 has 64 interrupt sources, 0-31 correspond to the device tree liointc0 device node, and the other correspond to liointc1 node. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Tested-by: Ming Wang --- v3-v4: Standard submission of information drivers/irqchip/irq-loongson-liointc.c | 58 ++ 1 file changed, 49 insertions(+), 9 deletions(-) diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c index 09b91b81851c..33219244c551 100644 --- a/drivers/irqchip/irq-loongson-liointc.c +++ b/drivers/irqchip/irq-loongson-liointc.c @@ -20,6 +20,7 @@ #define LIOINTC_CHIP_IRQ 32 #define LIOINTC_NUM_PARENT 4 +#define LIOINTC_NUM_CORES 4 #define LIOINTC_INTC_CHIP_START0x20 @@ -42,6 +43,7 @@ struct liointc_handler_data { struct liointc_priv { struct irq_chip_generic *gc; struct liointc_handler_data handler[LIOINTC_NUM_PARENT]; + void __iomem*core_isr[LIOINTC_NUM_CORES]; u8 map_cache[LIOINTC_CHIP_IRQ]; boolhas_lpc_irq_errata; }; @@ -51,11 +53,12 @@ static void liointc_chained_handle_irq(struct irq_desc *desc) struct liointc_handler_data *handler = irq_desc_get_handler_data(desc); struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip_generic *gc = handler->priv->gc; + int core = get_ebase_cpunum() % LIOINTC_NUM_CORES; u32 pending; chained_irq_enter(chip, desc); - pending = readl(gc->reg_base + LIOINTC_REG_INTC_STATUS); + pending = readl(handler->priv->core_isr[core]); if (!pending) { /* Always blame LPC IRQ if we have that bug */ @@ -141,6 +144,18 @@ static void liointc_resume(struct irq_chip_generic *gc) } static const char * const parent_names[] = {"int0", "int1", "int2", "int3"}; +static const char * const core_reg_names[] = {"isr0", "isr1", "isr2", "isr3"}; + +static void __iomem *liointc_get_reg_byname(struct device_node *node, + const char *name) +{ + int index = of_property_match_string(node, "reg-names", name); + + if (index < 0) + return NULL; + + return of_iomap(node, index); +} static int __init liointc_of_init(struct device_node *node, struct device_node *parent) @@ -159,10 +174,28 @@ static int __init liointc_of_init(struct device_node *node, if (!priv) return -ENOMEM; - base = of_iomap(node, 0); - if (!base) { - err = -ENODEV; - goto out_free_priv; + if (of_device_is_compatible(node, "loongson,liointc-2.0")) { + base = liointc_get_reg_byname(node, "main"); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + + for (i = 0; i < LIOINTC_NUM_CORES; i++) + priv->core_isr[i] = liointc_get_reg_byname(node, core_reg_names[i]); + if (!priv->core_isr[0]) { + err = -ENODEV; + goto out_iounmap_base; + } + } else { + base = of_iomap(node, 0); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + + for (i = 0; i < LIOINTC_NUM_CORES; i++) + priv->core_isr[i] = base + LIOINTC_REG_INTC_STATUS; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) { @@ -172,7 +205,7 @@ static int __init liointc_of_init(struct device_node *node, } if (!have_parent) { err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } sz = of_property_read_variable_u32_array(node, @@ -183,7 +216,7 @@ static int __init liointc_of_init(struct device_node *node, if (sz < 4) { pr_err("loongson-liointc: No parent_int_map\n"); err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) @@ -195,7 +228,7 @@ static int __init liointc_of_init(struct device_node *node, if (!domain) { pr_err("loongson-liointc: cannot add IRQ domain\n"); err = -EINVAL; - goto out_iounmap; + goto out_iounmap_isr; } err = irq_alloc_domain_generic_chips(domain, 32, 1, @@ -260,7 +293,13 @@ static int __init liointc_of_init(struct device_node *node,
[PATCH v3 7/7] MIPS: Loongson64: Add a Loongson-2k default config file
Add default config for 2K1000. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- v2-v3: No change arch/mips/configs/loongson2k_defconfig | 353 + 1 file changed, 353 insertions(+) create mode 100644 arch/mips/configs/loongson2k_defconfig diff --git a/arch/mips/configs/loongson2k_defconfig b/arch/mips/configs/loongson2k_defconfig new file mode 100644 index ..e948ca487e2d --- /dev/null +++ b/arch/mips/configs/loongson2k_defconfig @@ -0,0 +1,353 @@ +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_KERNEL_LZMA=y +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_AUDIT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_MEMCG=y +CONFIG_BLK_CGROUP=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_SYSFS_DEPRECATED=y +CONFIG_RELAY=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +CONFIG_MACH_LOONGSON64=y +# CONFIG_CPU_LOONGSON3_CPUCFG_EMULATION is not set +CONFIG_HZ_256=y +CONFIG_MIPS32_O32=y +CONFIG_MIPS32_N32=y +CONFIG_MODULES=y +CONFIG_MODULE_FORCE_LOAD=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_MQ_IOSCHED_DEADLINE=m +CONFIG_IOSCHED_BFQ=y +CONFIG_BFQ_GROUP_IOSCHED=y +CONFIG_BINFMT_MISC=m +CONFIG_KSM=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=y +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_NETFILTER=y +CONFIG_NETFILTER_NETLINK_LOG=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_DCCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_IP_VS=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_IP_SCTP=m +CONFIG_L2TP=m +CONFIG_BRIDGE=m +CONFIG_CFG80211=m +CONFIG_CFG80211_WEXT=y +CONFIG_MAC80211=m +CONFIG_RFKILL=m +CONFIG_RFKILL_INPUT=y +CONFIG_PCIEPORTBUS=y +CONFIG_HOTPLUG_PCI_PCIE=y +CONFIG_PCIEASPM_PERFORMANCE=y +CONFIG_HOTPLUG_PCI=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_MTD=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=y +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_SIZE=8192 +CONFIG_RAID_ATTRS=m +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_DEV_SR=y +CONFIG_CHR_DEV_SG=y +CONFIG_CHR_DEV_SCH=m +CONFIG_SCSI_CONSTANTS=y +CONFIG_SCSI_LOGGING=y +CONFIG_SCSI_SPI_ATTRS=m +CONFIG_SCSI_FC_ATTRS=m +CONFIG_ISCSI_TCP=m +CONFIG_MEGARAID_NEWGEN=y +CONFIG_MEGARAID_MM=y +CONFIG_MEGARAID_MAILBOX=y +CONFIG_MEGARAID_LEGACY=y +CONFIG_MEGARAID_SAS=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_PATA_ATIIXP=y +CONFIG_MD=y +CONFIG_BLK_DEV_MD=m +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_MD_RAID1=m +CONFIG_MD_RAID10=m +CONFIG_MD_RAID456=m +CONFIG_MD_MULTIPATH=m +CONFIG_BLK_DEV_DM=m +CONFIG_DM_CRYPT=m +CONFIG_DM_SNAPSHOT=m +CONFIG_DM_MIRROR=m +CONFIG_DM_ZERO=m +CONFIG_TARGET_CORE=m +CONFIG_TCM_IBLOCK=m +CONFIG_TCM_FILEIO=m +CONFIG_TCM_PSCSI=m +CONFIG_LOOPBACK_TARGET=m +CONFIG_ISCSI_TARGET=m +CONFIG_NETDEVICES=y +CONFIG_TUN=m +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_NET_VENDOR_ADAPTEC is not set +# CONFIG_NET_VENDOR_ALTEON is not set +# CONFIG_NET_VENDOR_AMD is not set +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_VENDOR_ATHEROS is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_BROCADE is not set +# CONFIG_NET_VENDOR_CHELSIO is not set +# CONFIG_NET_VENDOR_CIRRUS is not set +# CONFIG_NET_VENDOR_CISCO is not set +# CONFIG_NET_VENDOR_DEC is not set +# CONFIG_NET_VENDOR_DLINK is not set +# CONFIG_NET_VENDOR_EMULEX is not set +# CONFIG_NET_VENDOR_I825XX is not set +CONFIG_E1000=y +CONFIG_E1000E=y +CONFIG_IGB=y +CONFIG_IXGB=y +CONFIG_IXGBE=y +# CONFIG_NET_VENDOR_MARVELL is not set +# CONFIG_NET_VENDOR_MELLANOX is not set +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_MICROCHIP is not set +# CONFIG_NET_VENDOR_MICROSEMI is not set +# CONFIG_NET_VENDOR_MYRI is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_NETERION is not set +# CONFIG_NET_VENDOR_NETRONOME is not set +# CONFIG_NET_VENDOR_NI is not set +# CONFIG_NET_VENDOR_NVIDIA is not set +# CONFIG_NET_VENDOR_OKI is
[PATCH v3 4/7] MIPS: Loongson64: Add 2K1000 early_printk_port
Distinguish between 3A series CPU and 2K1000 CPU UART0. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- v2-v3: No change arch/mips/loongson64/init.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index ed280b73bf89..d5a1eddb8202 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -120,7 +120,10 @@ void __init prom_init(void) #endif /* Hardcode to CPU UART 0 */ - setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE), 0, 1024); + else + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); register_smp_ops(&loongson3_smp_ops); board_nmi_handler_setup = mips_nmi_setup; -- 2.20.1
[PATCH v3 3/7] MIPS: Loongson64: Add support for the 2K1000 to get cpu_clock_freq
Get the fixed-clock from the CPU0 node of the device tree. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- v2-v3: Add error process arch/mips/loongson64/time.c | 20 1 file changed, 20 insertions(+) diff --git a/arch/mips/loongson64/time.c b/arch/mips/loongson64/time.c index 91e842b58365..84f01424c8c0 100644 --- a/arch/mips/loongson64/time.c +++ b/arch/mips/loongson64/time.c @@ -11,9 +11,29 @@ #include #include +#include +#include void __init plat_time_init(void) { + struct clk *clk = NULL; + struct device_node *np; + + if (loongson_sysconf.fw_interface != LOONGSON_LEFI) { + of_clk_init(NULL); + + np = of_get_cpu_node(0, NULL); + if (!np) + pr_err("Failed to get CPU node\n"); + + clk = of_clk_get(np, 0); + if (IS_ERR(clk)) + pr_err("Failed to get CPU clock: %ld\n", PTR_ERR(clk)); + + cpu_clock_freq = clk_get_rate(clk); + clk_put(clk); + } + /* setup mips r4k timer */ mips_hpt_frequency = cpu_clock_freq / 2; -- 2.20.1
[PATCH v3 5/7] irqchip/loongson-liointc: irqchip add 2.0 version
Add IO interrupt controller support for Loongson 2k1000, different from the 3a series is that 2K1000 has 64 interrupt sources, 0-31 correspond to the device tree liointc0 device node, and the other correspond to liointc1 node. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- v2-v3: No change drivers/irqchip/irq-loongson-liointc.c | 55 +- 1 file changed, 46 insertions(+), 9 deletions(-) diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c index 09b91b81851c..1c3c80f7f9f5 100644 --- a/drivers/irqchip/irq-loongson-liointc.c +++ b/drivers/irqchip/irq-loongson-liointc.c @@ -20,6 +20,7 @@ #define LIOINTC_CHIP_IRQ 32 #define LIOINTC_NUM_PARENT 4 +#define LIOINTC_NUM_CORES 4 #define LIOINTC_INTC_CHIP_START0x20 @@ -42,6 +43,7 @@ struct liointc_handler_data { struct liointc_priv { struct irq_chip_generic *gc; struct liointc_handler_data handler[LIOINTC_NUM_PARENT]; + void __iomem*core_isr[LIOINTC_NUM_CORES]; u8 map_cache[LIOINTC_CHIP_IRQ]; boolhas_lpc_irq_errata; }; @@ -51,11 +53,12 @@ static void liointc_chained_handle_irq(struct irq_desc *desc) struct liointc_handler_data *handler = irq_desc_get_handler_data(desc); struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip_generic *gc = handler->priv->gc; + int core = get_ebase_cpunum() % LIOINTC_NUM_CORES; u32 pending; chained_irq_enter(chip, desc); - pending = readl(gc->reg_base + LIOINTC_REG_INTC_STATUS); + pending = readl(handler->priv->core_isr[core]); if (!pending) { /* Always blame LPC IRQ if we have that bug */ @@ -141,6 +144,15 @@ static void liointc_resume(struct irq_chip_generic *gc) } static const char * const parent_names[] = {"int0", "int1", "int2", "int3"}; +static const char * const core_reg_names[] = {"isr0", "isr1", "isr2", "isr3"}; + +static void __iomem *liointc_get_reg_byname(struct device_node *node, + const char *name) +{ + int index = of_property_match_string(node, "reg-names", name); + + return of_iomap(node, index); +} static int __init liointc_of_init(struct device_node *node, struct device_node *parent) @@ -159,10 +171,28 @@ static int __init liointc_of_init(struct device_node *node, if (!priv) return -ENOMEM; - base = of_iomap(node, 0); - if (!base) { - err = -ENODEV; - goto out_free_priv; + if (of_device_is_compatible(node, "loongson,liointc-2.0")) { + base = liointc_get_reg_byname(node, "main"); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + for (i = 0; i < LIOINTC_NUM_CORES; i++) { + priv->core_isr[i] = + liointc_get_reg_byname(node, core_reg_names[i]); + } + if (!priv->core_isr[0]) { + err = -ENODEV; + goto out_iounmap_base; + } + } else { + base = of_iomap(node, 0); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + for (i = 0; i < LIOINTC_NUM_CORES; i++) + priv->core_isr[i] = base + LIOINTC_REG_INTC_STATUS; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) { @@ -172,7 +202,7 @@ static int __init liointc_of_init(struct device_node *node, } if (!have_parent) { err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } sz = of_property_read_variable_u32_array(node, @@ -183,7 +213,7 @@ static int __init liointc_of_init(struct device_node *node, if (sz < 4) { pr_err("loongson-liointc: No parent_int_map\n"); err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) @@ -195,7 +225,7 @@ static int __init liointc_of_init(struct device_node *node, if (!domain) { pr_err("loongson-liointc: cannot add IRQ domain\n"); err = -EINVAL; - goto out_iounmap; + goto out_iounmap_isr; } err = irq_alloc_domain_generic_chips(domain, 32, 1, @@ -260,7 +290,13 @@ static int __init liointc_of_init(struct device_node *node, out_free_domain: irq_domain_remove(domain); -out_iounmap: +out_iounmap_
[PATCH v3 6/7] dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC
Add liointc-2.0 properties support, so update the maxItems and description. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- v2-v3: Fix warnings/errors abount running 'make dt_binding_check' .../bindings/interrupt-controller/loongson,liointc.yaml| 7 --- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml index f38e0113f360..5280cf60a9a7 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml @@ -10,9 +10,9 @@ maintainers: - Jiaxun Yang description: | - This interrupt controller is found in the Loongson-3 family of chips as the primary - package interrupt controller which can route local I/O interrupt to interrupt lines - of cores. + This interrupt controller is found in the Loongson-3 family of chips and + Loongson-2K1000 chip, as the primary package interrupt controller which + can route local I/O interrupt to interrupt lines of cores. allOf: - $ref: /schemas/interrupt-controller.yaml# @@ -22,6 +22,7 @@ properties: oneOf: - const: loongson,liointc-1.0 - const: loongson,liointc-1.0a + - const: loongson,liointc-2.0 reg: maxItems: 1 -- 2.20.1
[PATCH v3 2/7] MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI
Add DTB boot support, only support LS2K1000 processor for now, determine whether to use the built-in DTB or the DTB from the firmware by checking the range of CKSEG0 and XKPHYS.loongson_fw _interface will be used in the future. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- v2-v3: No change .../include/asm/mach-loongson64/boot_param.h | 6 ++ arch/mips/include/asm/mach-loongson64/loongson.h | 3 ++- arch/mips/loongson64/env.c | 13 - arch/mips/loongson64/init.c | 16 ++-- 4 files changed, 34 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h index 4592841b6b0c..53c29a305ff0 100644 --- a/arch/mips/include/asm/mach-loongson64/boot_param.h +++ b/arch/mips/include/asm/mach-loongson64/boot_param.h @@ -198,7 +198,13 @@ enum loongson_bridge_type { VIRTUAL = 3 }; +enum loongson_fw_interface { + LOONGSON_LEFI = 0, + LOONGSON_DTB = 1, +}; + struct loongson_system_configuration { + enum loongson_fw_interface fw_interface; u32 nr_cpus; u32 nr_nodes; int cores_per_node; diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index ac1c20e172a2..3f885fa26ba6 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -23,7 +23,8 @@ extern u32 memsize, highmemsize; extern const struct plat_smp_ops loongson3_smp_ops; /* loongson-specific command line, env and memory initialization */ -extern void __init prom_init_env(void); +extern void __init prom_dtb_init_env(void); +extern void __init prom_lefi_init_env(void); extern void __init szmem(unsigned int node); extern void *loongson_fdt_blob; diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c index 51a5d050a94c..e7d3a06175e3 100644 --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -43,7 +43,18 @@ const char *get_system_type(void) return "Generic Loongson64 System"; } -void __init prom_init_env(void) + +void __init prom_dtb_init_env(void) +{ + if ((fw_arg2 < CKSEG0 || fw_arg2 > CKSEG1) + && (fw_arg2 < XKPHYS || fw_arg2 > XKSEG)) + + loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin; + else + loongson_fdt_blob = (void *)fw_arg2; +} + +void __init prom_lefi_init_env(void) { struct boot_params *boot_p; struct loongson_params *loongson_p; diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index cfa788bca871..ed280b73bf89 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -52,6 +52,10 @@ void __init szmem(unsigned int node) static unsigned long num_physpages; u64 node_id, node_psize, start_pfn, end_pfn, mem_start, mem_size; + /* Otherwise come from DTB */ + if (loongson_sysconf.fw_interface != LOONGSON_LEFI) + return; + /* Parse memory information and activate */ for (i = 0; i < loongson_memmap->nr_map; i++) { node_id = loongson_memmap->map[i].node_id; @@ -94,12 +98,20 @@ static void __init prom_init_memory(void) void __init prom_init(void) { fw_init_cmdline(); - prom_init_env(); + + if (fw_arg2 == 0 || (fdt_magic(fw_arg2) == FDT_MAGIC)) { + loongson_sysconf.fw_interface = LOONGSON_DTB; + prom_dtb_init_env(); + } else { + loongson_sysconf.fw_interface = LOONGSON_LEFI; + prom_lefi_init_env(); + } /* init base address of io space */ set_io_port_base(PCI_IOBASE); - loongson_sysconf.early_config(); + if (loongson_sysconf.early_config) + loongson_sysconf.early_config(); #ifdef CONFIG_NUMA prom_init_numa_memory(); -- 2.20.1
[PATCH v3 0/7] Add basic support for Loongson-2K1000
These patches support single-core DTS boot to the serial port login interface, which can be operated using conventional commands. I have successfully tested it on the Loongson 2K1000 machine. pmon: http://cgit.loongnix.org/cgit/pmon-loongson3/ Qing Zhang (7): MIPS: Loongson64: DeviceTree for 2K1000 MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI MIPS: Loongson64: Add support for the 2K1000 to get cpu_clock_freq MIPS: Loongson64: Add 2K1000 early_printk_port irqchip/loongson-liointc: irqchip add 2.0 version dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC MIPS: Loongson64: Add a Loongson-2k default config file .../loongson,liointc.yaml | 7 +- arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 .../dts/loongson/loongson64_2core_2k1000.dts | 10 + arch/mips/configs/loongson2k_defconfig| 353 ++ .../include/asm/mach-loongson64/boot_param.h | 6 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + .../include/asm/mach-loongson64/loongson.h| 3 +- arch/mips/loongson64/env.c| 13 +- arch/mips/loongson64/init.c | 21 +- arch/mips/loongson64/time.c | 20 + drivers/irqchip/irq-loongson-liointc.c| 55 ++- 12 files changed, 716 insertions(+), 17 deletions(-) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts create mode 100644 arch/mips/configs/loongson2k_defconfig -- 2.20.1
[PATCH v3 1/7] MIPS: Loongson64: DeviceTree for 2K1000
Add DeviceTree files for Loongson 2K1000 processor,currently only supports single-core boot. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- v2-v3: No changes arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 ++ .../dts/loongson/loongson64_2core_2k1000.dts | 10 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + 4 files changed, 255 insertions(+) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile index 8fd0efb37423..72267bfda9b4 100644 --- a/arch/mips/boot/dts/loongson/Makefile +++ b/arch/mips/boot/dts/loongson/Makefile @@ -1,4 +1,5 @@ # SPDX_License_Identifier: GPL_2.0 +dtb-$(CONFIG_MACH_LOONGSON64) += loongson64_2core_2k1000.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_ls7a.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_rs780e.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_8core_rs780e.dtb diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi new file mode 100644 index ..fd0e99bfe57b --- /dev/null +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi @@ -0,0 +1,243 @@ +// SPDX-License-Identifier: GPL-3.0 + +/dts-v1/; + +#include + +/ { + compatible = "loongson,loongson2k1000"; + + #address-cells = <2>; + #size-cells = <2>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "loongson,gs264"; + reg = <0x0>; + #clock-cells = <1>; + clocks = <&cpu_clk>; + }; + }; + + memory { + compatible = "memory"; + device_type = "memory"; + reg = <0x 0x0020 0x 0x0ee0>, /* 238 MB at 2 MB */ + <0x 0x2000 0x 0x1f00>, /* 496 MB at 512 MB */ + <0x0001 0x1000 0x0001 0xb000>; /* 6912 MB at 4352MB */ + }; + + cpu_clk: cpu_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <8>; + }; + + cpuintc: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + compatible = "mti,cpu-interrupt-controller"; + }; + + package0: bus@1000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0 0x1000 0 0x1000 0 0x1000 /* ioports */ + 0 0x4000 0 0x4000 0 0x4000 + 0xfe 0x 0xfe 0x 0 0x4000>; + + liointc0: interrupt-controller@1fe11400 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11400 0 0x40>, + <0 0x1fe11040 0 0x8>, + <0 0x1fe11140 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <2>; + interrupt-names = "int0"; + + loongson,parent_int_map = <0x>, /* int0 */ + <0x>, /* int1 */ + <0x>, /* int2 */ + <0x>; /* int3 */ + }; + + liointc1: interrupt-controller@1fe11440 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11440 0 0x40>, + <0 0x1fe11048 0 0x8>, + <0 0x1fe11148 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <3>; + interrupt-names = "int1"; + +
[PATCH v3 0/7] Add basic support for Loongson-2K1000
These patches support single-core DTS boot to the serial port login interface, which can be operated using conventional commands. I have successfully tested it on the Loongson 2K1000 machine. pmon: http://cgit.loongnix.org/cgit/pmon-loongson3/ Qing Zhang (7): MIPS: Loongson64: DeviceTree for 2K1000 MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI MIPS: Loongson64: Add support for the 2K1000 to get cpu_clock_freq MIPS: Loongson64: Add 2K1000 early_printk_port irqchip/loongson-liointc: irqchip add 2.0 version dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC MIPS: Loongson64: Add a Loongson-2k default config file .../loongson,liointc.yaml | 7 +- arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 .../dts/loongson/loongson64_2core_2k1000.dts | 10 + arch/mips/configs/loongson2k_defconfig| 353 ++ .../include/asm/mach-loongson64/boot_param.h | 6 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + .../include/asm/mach-loongson64/loongson.h| 3 +- arch/mips/loongson64/env.c| 13 +- arch/mips/loongson64/init.c | 21 +- arch/mips/loongson64/time.c | 20 + drivers/irqchip/irq-loongson-liointc.c| 55 ++- 12 files changed, 716 insertions(+), 17 deletions(-) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts create mode 100644 arch/mips/configs/loongson2k_defconfig -- 2.20.1
[PATCH v3 0/7] Add basic support for Loongson-2K1000
These patches support single-core DTS boot to the serial port login interface, which can be operated using conventional commands. I have successfully tested it on the Loongson 2K1000 machine. pmon: http://cgit.loongnix.org/cgit/pmon-loongson3/ Qing Zhang (7): MIPS: Loongson64: DeviceTree for 2K1000 MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI MIPS: Loongson64: Add support for the 2K1000 to get cpu_clock_freq MIPS: Loongson64: Add 2K1000 early_printk_port irqchip/loongson-liointc: irqchip add 2.0 version dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC MIPS: Loongson64: Add a Loongson-2k default config file .../loongson,liointc.yaml | 7 +- arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 .../dts/loongson/loongson64_2core_2k1000.dts | 10 + arch/mips/configs/loongson2k_defconfig| 353 ++ .../include/asm/mach-loongson64/boot_param.h | 6 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + .../include/asm/mach-loongson64/loongson.h| 3 +- arch/mips/loongson64/env.c| 13 +- arch/mips/loongson64/init.c | 21 +- arch/mips/loongson64/time.c | 20 + drivers/irqchip/irq-loongson-liointc.c| 55 ++- 12 files changed, 716 insertions(+), 17 deletions(-) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts create mode 100644 arch/mips/configs/loongson2k_defconfig -- 2.20.1
[PATCH 1/2] MIPS: Loongson64: Remove unused sysconf members
We don't need them anymore, They are uniform on all Loongson64 systems and have been fixed in DeviceTree.loongson3_platform_init is replaced with DTS + driver. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- .../include/asm/mach-loongson64/boot_param.h | 9 arch/mips/loongson64/Makefile | 2 +- arch/mips/loongson64/env.c| 20 - arch/mips/loongson64/platform.c | 42 --- 4 files changed, 1 insertion(+), 72 deletions(-) delete mode 100644 arch/mips/loongson64/platform.c diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h index 4592841b6b0c..1c1cdf57137e 100644 --- a/arch/mips/include/asm/mach-loongson64/boot_param.h +++ b/arch/mips/include/asm/mach-loongson64/boot_param.h @@ -207,20 +207,11 @@ struct loongson_system_configuration { u16 reserved_cpus_mask; enum loongson_cpu_type cputype; enum loongson_bridge_type bridgetype; - u64 ht_control_base; - u64 pci_mem_start_addr; - u64 pci_mem_end_addr; - u64 pci_io_base; u64 restart_addr; u64 poweroff_addr; u64 suspend_addr; u64 vgabios_addr; u32 dma_mask_bits; - char ecname[32]; - u32 nr_uarts; - struct uart_device uarts[MAX_UARTS]; - u32 nr_sensors; - struct sensor_device sensors[MAX_SENSORS]; u64 workarounds; void (*early_config)(void); }; diff --git a/arch/mips/loongson64/Makefile b/arch/mips/loongson64/Makefile index cc76944b1a9d..e806280bbb85 100644 --- a/arch/mips/loongson64/Makefile +++ b/arch/mips/loongson64/Makefile @@ -2,7 +2,7 @@ # # Makefile for Loongson-3 family machines # -obj-$(CONFIG_MACH_LOONGSON64) += cop2-ex.o platform.o dma.o \ +obj-$(CONFIG_MACH_LOONGSON64) += cop2-ex.o dma.o \ setup.o init.o env.o time.o reset.o \ obj-$(CONFIG_SMP) += smp.o diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c index 51a5d050a94c..1821d461b606 100644 --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -95,7 +95,6 @@ void __init prom_init_env(void) loongson_freqctrl[1] = 0x900010001fe001d0; loongson_freqctrl[2] = 0x900020001fe001d0; loongson_freqctrl[3] = 0x900030001fe001d0; - loongson_sysconf.ht_control_base = 0x9EFDFB00; loongson_sysconf.workarounds = WORKAROUND_CPUFREQ; break; case Legacy_3B: @@ -118,7 +117,6 @@ void __init prom_init_env(void) loongson_freqctrl[1] = 0x900020001fe001d0; loongson_freqctrl[2] = 0x900040001fe001d0; loongson_freqctrl[3] = 0x900060001fe001d0; - loongson_sysconf.ht_control_base = 0x90001EFDFB00; loongson_sysconf.workarounds = WORKAROUND_CPUHOTPLUG; break; default: @@ -136,9 +134,6 @@ void __init prom_init_env(void) loongson_sysconf.cores_per_node - 1) / loongson_sysconf.cores_per_node; - loongson_sysconf.pci_mem_start_addr = eirq_source->pci_mem_start_addr; - loongson_sysconf.pci_mem_end_addr = eirq_source->pci_mem_end_addr; - loongson_sysconf.pci_io_base = eirq_source->pci_io_start_addr; loongson_sysconf.dma_mask_bits = eirq_source->dma_mask_bits; if (loongson_sysconf.dma_mask_bits < 32 || loongson_sysconf.dma_mask_bits > 64) @@ -153,23 +148,8 @@ void __init prom_init_env(void) loongson_sysconf.poweroff_addr, loongson_sysconf.restart_addr, loongson_sysconf.vgabios_addr); - memset(loongson_sysconf.ecname, 0, 32); - if (esys->has_ec) - memcpy(loongson_sysconf.ecname, esys->ec_name, 32); loongson_sysconf.workarounds |= esys->workarounds; - loongson_sysconf.nr_uarts = esys->nr_uarts; - if (esys->nr_uarts < 1 || esys->nr_uarts > MAX_UARTS) - loongson_sysconf.nr_uarts = 1; - memcpy(loongson_sysconf.uarts, esys->uarts, - sizeof(struct uart_device) * loongson_sysconf.nr_uarts); - - loongson_sysconf.nr_sensors = esys->nr_sensors; - if (loongson_sysconf.nr_sensors > MAX_SENSORS) - loongson_sysconf.nr_sensors = 0; - if (loongson_sysconf.nr_sensors) - memcpy(loongson_sysconf.sensors, esys->sensors, - sizeof(struct sensor_device) * loongson_sysconf.nr_sensors); pr_info("CpuClock = %u\n", cpu_clock_freq); /* Read the ID of PCI host bridge to detect bridge type */ diff --git a/arch/mips/loongson64/platform.c b/arch/mips/loongson64/platform.c deleted file mode 100644 index 9674ae1361a8.. --- a/arch/mips/loongson64/platform.c +++ /dev/null @@ -1,42 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/
[PATCH 0/2] some cleanup code
These patches clean up some code about Loongson64. Qing Zhang (2): MIPS: Loongson64: Remove unused sysconf members MIPS: Loongson64: Move loongson_system_configuration to loongson.h .../include/asm/mach-loongson64/boot_param.h | 27 .../include/asm/mach-loongson64/loongson.h| 18 arch/mips/loongson64/Makefile | 2 +- arch/mips/loongson64/env.c| 20 - arch/mips/loongson64/platform.c | 42 --- drivers/irqchip/irq-loongson-liointc.c| 2 +- 6 files changed, 20 insertions(+), 91 deletions(-) delete mode 100644 arch/mips/loongson64/platform.c -- 2.20.1
[PATCH 2/2] MIPS: Loongson64: Move loongson_system_configuration to loongson.h
The purpose of separating loongson_system_configuration from boot_param.h is to keep the other structure consistent with the firmware. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- .../include/asm/mach-loongson64/boot_param.h | 18 -- .../include/asm/mach-loongson64/loongson.h | 18 ++ drivers/irqchip/irq-loongson-liointc.c | 2 +- 3 files changed, 19 insertions(+), 19 deletions(-) diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h index 1c1cdf57137e..035b1a69e2d0 100644 --- a/arch/mips/include/asm/mach-loongson64/boot_param.h +++ b/arch/mips/include/asm/mach-loongson64/boot_param.h @@ -198,24 +198,6 @@ enum loongson_bridge_type { VIRTUAL = 3 }; -struct loongson_system_configuration { - u32 nr_cpus; - u32 nr_nodes; - int cores_per_node; - int cores_per_package; - u16 boot_cpu_id; - u16 reserved_cpus_mask; - enum loongson_cpu_type cputype; - enum loongson_bridge_type bridgetype; - u64 restart_addr; - u64 poweroff_addr; - u64 suspend_addr; - u64 vgabios_addr; - u32 dma_mask_bits; - u64 workarounds; - void (*early_config)(void); -}; - extern struct efi_memory_map_loongson *loongson_memmap; extern struct loongson_system_configuration loongson_sysconf; diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index ac1c20e172a2..6189deb188cf 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -12,6 +12,24 @@ #include #include +/* machine-specific boot configuration */ +struct loongson_system_configuration { + u32 nr_cpus; + u32 nr_nodes; + int cores_per_node; + int cores_per_package; + u16 boot_cpu_id; + u16 reserved_cpus_mask; + enum loongson_cpu_type cputype; + enum loongson_bridge_type bridgetype; + u64 restart_addr; + u64 poweroff_addr; + u64 suspend_addr; + u64 vgabios_addr; + u32 dma_mask_bits; + u64 workarounds; + void (*early_config)(void); +}; /* machine-specific reboot/halt operation */ extern void mach_prepare_reboot(void); diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c index 09b91b81851c..249566a23cc4 100644 --- a/drivers/irqchip/irq-loongson-liointc.c +++ b/drivers/irqchip/irq-loongson-liointc.c @@ -16,7 +16,7 @@ #include #include -#include +#include #define LIOINTC_CHIP_IRQ 32 #define LIOINTC_NUM_PARENT 4 -- 2.20.1
[PATCH v2 0/7] Add basic support for Loongson-2K1000
These patches support single-core DTS boot to the serial port login interface, which can be operated using conventional commands. I have successfully tested it on the Loongson 2K1000 machine. pmon: http://cgit.loongnix.org/cgit/pmon-loongson3/ Qing Zhang (7): MIPS: Loongson64: DeviceTree for 2K1000 MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI MIPS: Loongson64: Add support for the 2K1000 to get cpu_clock_freq MIPS: Loongson64: Add 2K1000 early_printk_port irqchip/loongson-liointc: irqchip add 2.0 version dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC MIPS: Loongson64: Add a Loongson-2k default config file .../loongson,liointc.yaml | 9 +- arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 .../dts/loongson/loongson64_2core_2k1000.dts | 10 + arch/mips/configs/loongson2k_defconfig| 353 ++ .../include/asm/mach-loongson64/boot_param.h | 6 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + .../include/asm/mach-loongson64/loongson.h| 3 +- arch/mips/loongson64/env.c| 13 +- arch/mips/loongson64/init.c | 21 +- arch/mips/loongson64/time.c | 14 + drivers/irqchip/irq-loongson-liointc.c| 55 ++- 12 files changed, 711 insertions(+), 18 deletions(-) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts create mode 100644 arch/mips/configs/loongson2k_defconfig -- 2.20.1
[PATCH v2 3/7] MIPS: Loongson64: Add support for the 2K1000 to get cpu_clock_freq
Get the fixed-clock from the CPU0 node of the device tree. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- v2: - No changes arch/mips/loongson64/time.c | 14 ++ 1 file changed, 14 insertions(+) diff --git a/arch/mips/loongson64/time.c b/arch/mips/loongson64/time.c index 91e842b58365..45698b18f4ae 100644 --- a/arch/mips/loongson64/time.c +++ b/arch/mips/loongson64/time.c @@ -11,9 +11,23 @@ #include #include +#include +#include void __init plat_time_init(void) { + struct clk *clk = NULL; + struct device_node *np; + + of_clk_init(NULL); + + np = of_get_cpu_node(0, NULL); + clk = of_clk_get(np, 0); + if (clk) { + cpu_clock_freq = clk_get_rate(clk); + clk_put(clk); + } + /* setup mips r4k timer */ mips_hpt_frequency = cpu_clock_freq / 2; -- 2.20.1
[PATCH v2 6/7] dt-bindings: interrupt-controller: Add Loongson-2K1000 LIOINTC
Add liointc-2.0 properties support, so update the maxItems and description. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang --- v2: - Add new patch .../bindings/interrupt-controller/loongson,liointc.yaml | 9 + 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml index f38e0113f360..96162b9d227c 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml @@ -10,9 +10,9 @@ maintainers: - Jiaxun Yang description: | - This interrupt controller is found in the Loongson-3 family of chips as the primary - package interrupt controller which can route local I/O interrupt to interrupt lines - of cores. + This interrupt controller is found in the Loongson-3 family of chips and + Loongson-2K1000 chip, as the primary package interrupt controller which + can route local I/O interrupt to interrupt lines of cores. allOf: - $ref: /schemas/interrupt-controller.yaml# @@ -22,9 +22,10 @@ properties: oneOf: - const: loongson,liointc-1.0 - const: loongson,liointc-1.0a + - const: loongson,liointc-2.0 reg: -maxItems: 1 +maxItems: 3 interrupt-controller: true -- 2.20.1
[PATCH v2 2/7] MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI
Add DTB boot support, only support LS2K1000 processor for now, determine whether to use the built-in DTB or the DTB from the firmware by checking the range of CKSEG0 and XKPHYS.loongson_fw _interface will be used in the future. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- v2: - fdt_magic(fw_arg2) == FDT_MAGIC is the case of dts from firmware, fw_arg2 == 0 is the case of earse_dtb .../include/asm/mach-loongson64/boot_param.h | 6 ++ arch/mips/include/asm/mach-loongson64/loongson.h | 3 ++- arch/mips/loongson64/env.c | 13 - arch/mips/loongson64/init.c | 16 ++-- 4 files changed, 34 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h index 4592841b6b0c..53c29a305ff0 100644 --- a/arch/mips/include/asm/mach-loongson64/boot_param.h +++ b/arch/mips/include/asm/mach-loongson64/boot_param.h @@ -198,7 +198,13 @@ enum loongson_bridge_type { VIRTUAL = 3 }; +enum loongson_fw_interface { + LOONGSON_LEFI = 0, + LOONGSON_DTB = 1, +}; + struct loongson_system_configuration { + enum loongson_fw_interface fw_interface; u32 nr_cpus; u32 nr_nodes; int cores_per_node; diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index ac1c20e172a2..3f885fa26ba6 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -23,7 +23,8 @@ extern u32 memsize, highmemsize; extern const struct plat_smp_ops loongson3_smp_ops; /* loongson-specific command line, env and memory initialization */ -extern void __init prom_init_env(void); +extern void __init prom_dtb_init_env(void); +extern void __init prom_lefi_init_env(void); extern void __init szmem(unsigned int node); extern void *loongson_fdt_blob; diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c index 51a5d050a94c..e7d3a06175e3 100644 --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -43,7 +43,18 @@ const char *get_system_type(void) return "Generic Loongson64 System"; } -void __init prom_init_env(void) + +void __init prom_dtb_init_env(void) +{ + if ((fw_arg2 < CKSEG0 || fw_arg2 > CKSEG1) + && (fw_arg2 < XKPHYS || fw_arg2 > XKSEG)) + + loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin; + else + loongson_fdt_blob = (void *)fw_arg2; +} + +void __init prom_lefi_init_env(void) { struct boot_params *boot_p; struct loongson_params *loongson_p; diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index cfa788bca871..ed280b73bf89 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -52,6 +52,10 @@ void __init szmem(unsigned int node) static unsigned long num_physpages; u64 node_id, node_psize, start_pfn, end_pfn, mem_start, mem_size; + /* Otherwise come from DTB */ + if (loongson_sysconf.fw_interface != LOONGSON_LEFI) + return; + /* Parse memory information and activate */ for (i = 0; i < loongson_memmap->nr_map; i++) { node_id = loongson_memmap->map[i].node_id; @@ -94,12 +98,20 @@ static void __init prom_init_memory(void) void __init prom_init(void) { fw_init_cmdline(); - prom_init_env(); + + if (fw_arg2 == 0 || (fdt_magic(fw_arg2) == FDT_MAGIC)) { + loongson_sysconf.fw_interface = LOONGSON_DTB; + prom_dtb_init_env(); + } else { + loongson_sysconf.fw_interface = LOONGSON_LEFI; + prom_lefi_init_env(); + } /* init base address of io space */ set_io_port_base(PCI_IOBASE); - loongson_sysconf.early_config(); + if (loongson_sysconf.early_config) + loongson_sysconf.early_config(); #ifdef CONFIG_NUMA prom_init_numa_memory(); -- 2.20.1
[PATCH v2 1/7] MIPS: Loongson64: DeviceTree for 2K1000
Add DeviceTree files for Loongson 2K1000 processor,currently only supports single-core boot. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- v2: - NO changes arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 ++ .../dts/loongson/loongson64_2core_2k1000.dts | 10 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + 4 files changed, 255 insertions(+) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile index 8fd0efb37423..72267bfda9b4 100644 --- a/arch/mips/boot/dts/loongson/Makefile +++ b/arch/mips/boot/dts/loongson/Makefile @@ -1,4 +1,5 @@ # SPDX_License_Identifier: GPL_2.0 +dtb-$(CONFIG_MACH_LOONGSON64) += loongson64_2core_2k1000.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_ls7a.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_rs780e.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_8core_rs780e.dtb diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi new file mode 100644 index ..fd0e99bfe57b --- /dev/null +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi @@ -0,0 +1,243 @@ +// SPDX-License-Identifier: GPL-3.0 + +/dts-v1/; + +#include + +/ { + compatible = "loongson,loongson2k1000"; + + #address-cells = <2>; + #size-cells = <2>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "loongson,gs264"; + reg = <0x0>; + #clock-cells = <1>; + clocks = <&cpu_clk>; + }; + }; + + memory { + compatible = "memory"; + device_type = "memory"; + reg = <0x 0x0020 0x 0x0ee0>, /* 238 MB at 2 MB */ + <0x 0x2000 0x 0x1f00>, /* 496 MB at 512 MB */ + <0x0001 0x1000 0x0001 0xb000>; /* 6912 MB at 4352MB */ + }; + + cpu_clk: cpu_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <8>; + }; + + cpuintc: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + compatible = "mti,cpu-interrupt-controller"; + }; + + package0: bus@1000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0 0x1000 0 0x1000 0 0x1000 /* ioports */ + 0 0x4000 0 0x4000 0 0x4000 + 0xfe 0x 0xfe 0x 0 0x4000>; + + liointc0: interrupt-controller@1fe11400 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11400 0 0x40>, + <0 0x1fe11040 0 0x8>, + <0 0x1fe11140 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <2>; + interrupt-names = "int0"; + + loongson,parent_int_map = <0x>, /* int0 */ + <0x>, /* int1 */ + <0x>, /* int2 */ + <0x>; /* int3 */ + }; + + liointc1: interrupt-controller@1fe11440 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11440 0 0x40>, + <0 0x1fe11048 0 0x8>, + <0 0x1fe11148 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <3>; + interrupt-names = "int1"; +
[PATCH v2 7/7] MIPS: Loongson64: Add a Loongson-2k default config file
Add default config for 2K1000. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- v2: - No changes arch/mips/configs/loongson2k_defconfig | 353 + 1 file changed, 353 insertions(+) create mode 100644 arch/mips/configs/loongson2k_defconfig diff --git a/arch/mips/configs/loongson2k_defconfig b/arch/mips/configs/loongson2k_defconfig new file mode 100644 index ..e948ca487e2d --- /dev/null +++ b/arch/mips/configs/loongson2k_defconfig @@ -0,0 +1,353 @@ +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_KERNEL_LZMA=y +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_AUDIT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_MEMCG=y +CONFIG_BLK_CGROUP=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_SYSFS_DEPRECATED=y +CONFIG_RELAY=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +CONFIG_MACH_LOONGSON64=y +# CONFIG_CPU_LOONGSON3_CPUCFG_EMULATION is not set +CONFIG_HZ_256=y +CONFIG_MIPS32_O32=y +CONFIG_MIPS32_N32=y +CONFIG_MODULES=y +CONFIG_MODULE_FORCE_LOAD=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_MQ_IOSCHED_DEADLINE=m +CONFIG_IOSCHED_BFQ=y +CONFIG_BFQ_GROUP_IOSCHED=y +CONFIG_BINFMT_MISC=m +CONFIG_KSM=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=y +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_NETFILTER=y +CONFIG_NETFILTER_NETLINK_LOG=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_DCCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_IP_VS=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_IP_SCTP=m +CONFIG_L2TP=m +CONFIG_BRIDGE=m +CONFIG_CFG80211=m +CONFIG_CFG80211_WEXT=y +CONFIG_MAC80211=m +CONFIG_RFKILL=m +CONFIG_RFKILL_INPUT=y +CONFIG_PCIEPORTBUS=y +CONFIG_HOTPLUG_PCI_PCIE=y +CONFIG_PCIEASPM_PERFORMANCE=y +CONFIG_HOTPLUG_PCI=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_MTD=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=y +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_SIZE=8192 +CONFIG_RAID_ATTRS=m +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_DEV_SR=y +CONFIG_CHR_DEV_SG=y +CONFIG_CHR_DEV_SCH=m +CONFIG_SCSI_CONSTANTS=y +CONFIG_SCSI_LOGGING=y +CONFIG_SCSI_SPI_ATTRS=m +CONFIG_SCSI_FC_ATTRS=m +CONFIG_ISCSI_TCP=m +CONFIG_MEGARAID_NEWGEN=y +CONFIG_MEGARAID_MM=y +CONFIG_MEGARAID_MAILBOX=y +CONFIG_MEGARAID_LEGACY=y +CONFIG_MEGARAID_SAS=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_PATA_ATIIXP=y +CONFIG_MD=y +CONFIG_BLK_DEV_MD=m +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_MD_RAID1=m +CONFIG_MD_RAID10=m +CONFIG_MD_RAID456=m +CONFIG_MD_MULTIPATH=m +CONFIG_BLK_DEV_DM=m +CONFIG_DM_CRYPT=m +CONFIG_DM_SNAPSHOT=m +CONFIG_DM_MIRROR=m +CONFIG_DM_ZERO=m +CONFIG_TARGET_CORE=m +CONFIG_TCM_IBLOCK=m +CONFIG_TCM_FILEIO=m +CONFIG_TCM_PSCSI=m +CONFIG_LOOPBACK_TARGET=m +CONFIG_ISCSI_TARGET=m +CONFIG_NETDEVICES=y +CONFIG_TUN=m +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_NET_VENDOR_ADAPTEC is not set +# CONFIG_NET_VENDOR_ALTEON is not set +# CONFIG_NET_VENDOR_AMD is not set +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_VENDOR_ATHEROS is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_BROCADE is not set +# CONFIG_NET_VENDOR_CHELSIO is not set +# CONFIG_NET_VENDOR_CIRRUS is not set +# CONFIG_NET_VENDOR_CISCO is not set +# CONFIG_NET_VENDOR_DEC is not set +# CONFIG_NET_VENDOR_DLINK is not set +# CONFIG_NET_VENDOR_EMULEX is not set +# CONFIG_NET_VENDOR_I825XX is not set +CONFIG_E1000=y +CONFIG_E1000E=y +CONFIG_IGB=y +CONFIG_IXGB=y +CONFIG_IXGBE=y +# CONFIG_NET_VENDOR_MARVELL is not set +# CONFIG_NET_VENDOR_MELLANOX is not set +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_MICROCHIP is not set +# CONFIG_NET_VENDOR_MICROSEMI is not set +# CONFIG_NET_VENDOR_MYRI is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_NETERION is not set +# CONFIG_NET_VENDOR_NETRONOME is not set +# CONFIG_NET_VENDOR_NI is not set +# CONFIG_NET_VENDOR_NVIDIA is not set
[PATCH v2 5/7] irqchip/loongson-liointc: irqchip add 2.0 version
Add IO interrupt controller support for Loongson 2k1000, different from the 3a series is that 2K1000 has 64 interrupt sources, 0-31 correspond to the device tree liointc0 device node, and the other correspond to liointc1 node. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- v2: - No changes drivers/irqchip/irq-loongson-liointc.c | 55 +- 1 file changed, 46 insertions(+), 9 deletions(-) diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c index 09b91b81851c..1c3c80f7f9f5 100644 --- a/drivers/irqchip/irq-loongson-liointc.c +++ b/drivers/irqchip/irq-loongson-liointc.c @@ -20,6 +20,7 @@ #define LIOINTC_CHIP_IRQ 32 #define LIOINTC_NUM_PARENT 4 +#define LIOINTC_NUM_CORES 4 #define LIOINTC_INTC_CHIP_START0x20 @@ -42,6 +43,7 @@ struct liointc_handler_data { struct liointc_priv { struct irq_chip_generic *gc; struct liointc_handler_data handler[LIOINTC_NUM_PARENT]; + void __iomem*core_isr[LIOINTC_NUM_CORES]; u8 map_cache[LIOINTC_CHIP_IRQ]; boolhas_lpc_irq_errata; }; @@ -51,11 +53,12 @@ static void liointc_chained_handle_irq(struct irq_desc *desc) struct liointc_handler_data *handler = irq_desc_get_handler_data(desc); struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip_generic *gc = handler->priv->gc; + int core = get_ebase_cpunum() % LIOINTC_NUM_CORES; u32 pending; chained_irq_enter(chip, desc); - pending = readl(gc->reg_base + LIOINTC_REG_INTC_STATUS); + pending = readl(handler->priv->core_isr[core]); if (!pending) { /* Always blame LPC IRQ if we have that bug */ @@ -141,6 +144,15 @@ static void liointc_resume(struct irq_chip_generic *gc) } static const char * const parent_names[] = {"int0", "int1", "int2", "int3"}; +static const char * const core_reg_names[] = {"isr0", "isr1", "isr2", "isr3"}; + +static void __iomem *liointc_get_reg_byname(struct device_node *node, + const char *name) +{ + int index = of_property_match_string(node, "reg-names", name); + + return of_iomap(node, index); +} static int __init liointc_of_init(struct device_node *node, struct device_node *parent) @@ -159,10 +171,28 @@ static int __init liointc_of_init(struct device_node *node, if (!priv) return -ENOMEM; - base = of_iomap(node, 0); - if (!base) { - err = -ENODEV; - goto out_free_priv; + if (of_device_is_compatible(node, "loongson,liointc-2.0")) { + base = liointc_get_reg_byname(node, "main"); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + for (i = 0; i < LIOINTC_NUM_CORES; i++) { + priv->core_isr[i] = + liointc_get_reg_byname(node, core_reg_names[i]); + } + if (!priv->core_isr[0]) { + err = -ENODEV; + goto out_iounmap_base; + } + } else { + base = of_iomap(node, 0); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + for (i = 0; i < LIOINTC_NUM_CORES; i++) + priv->core_isr[i] = base + LIOINTC_REG_INTC_STATUS; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) { @@ -172,7 +202,7 @@ static int __init liointc_of_init(struct device_node *node, } if (!have_parent) { err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } sz = of_property_read_variable_u32_array(node, @@ -183,7 +213,7 @@ static int __init liointc_of_init(struct device_node *node, if (sz < 4) { pr_err("loongson-liointc: No parent_int_map\n"); err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) @@ -195,7 +225,7 @@ static int __init liointc_of_init(struct device_node *node, if (!domain) { pr_err("loongson-liointc: cannot add IRQ domain\n"); err = -EINVAL; - goto out_iounmap; + goto out_iounmap_isr; } err = irq_alloc_domain_generic_chips(domain, 32, 1, @@ -260,7 +290,13 @@ static int __init liointc_of_init(struct device_node *node, out_free_domain: irq_domain_remove(domain); -out_iounm
[PATCH v2 4/7] MIPS: Loongson64: Add 2K1000 early_printk_port
Distinguish between 3A series CPU and 2K1000 CPU UART0. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- v2: - No changes arch/mips/loongson64/init.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index ed280b73bf89..d5a1eddb8202 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -120,7 +120,10 @@ void __init prom_init(void) #endif /* Hardcode to CPU UART 0 */ - setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE), 0, 1024); + else + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); register_smp_ops(&loongson3_smp_ops); board_nmi_handler_setup = mips_nmi_setup; -- 2.20.1
[PATCH 1/6] MIPS: Loongson64: DeviceTree for 2K1000
Add DeviceTree files for Loongson 2K1000 processor,currently only supports single-core boot. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 ++ .../dts/loongson/loongson64_2core_2k1000.dts | 10 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + 4 files changed, 255 insertions(+) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile index 8fd0efb37423..72267bfda9b4 100644 --- a/arch/mips/boot/dts/loongson/Makefile +++ b/arch/mips/boot/dts/loongson/Makefile @@ -1,4 +1,5 @@ # SPDX_License_Identifier: GPL_2.0 +dtb-$(CONFIG_MACH_LOONGSON64) += loongson64_2core_2k1000.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_ls7a.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_4core_rs780e.dtb dtb-$(CONFIG_MACH_LOONGSON64) += loongson64c_8core_rs780e.dtb diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi new file mode 100644 index ..fd0e99bfe57b --- /dev/null +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi @@ -0,0 +1,243 @@ +// SPDX-License-Identifier: GPL-3.0 + +/dts-v1/; + +#include + +/ { + compatible = "loongson,loongson2k1000"; + + #address-cells = <2>; + #size-cells = <2>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "loongson,gs264"; + reg = <0x0>; + #clock-cells = <1>; + clocks = <&cpu_clk>; + }; + }; + + memory { + compatible = "memory"; + device_type = "memory"; + reg = <0x 0x0020 0x 0x0ee0>, /* 238 MB at 2 MB */ + <0x 0x2000 0x 0x1f00>, /* 496 MB at 512 MB */ + <0x0001 0x1000 0x0001 0xb000>; /* 6912 MB at 4352MB */ + }; + + cpu_clk: cpu_clk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <8>; + }; + + cpuintc: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + compatible = "mti,cpu-interrupt-controller"; + }; + + package0: bus@1000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0 0x1000 0 0x1000 0 0x1000 /* ioports */ + 0 0x4000 0 0x4000 0 0x4000 + 0xfe 0x 0xfe 0x 0 0x4000>; + + liointc0: interrupt-controller@1fe11400 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11400 0 0x40>, + <0 0x1fe11040 0 0x8>, + <0 0x1fe11140 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <2>; + interrupt-names = "int0"; + + loongson,parent_int_map = <0x>, /* int0 */ + <0x>, /* int1 */ + <0x>, /* int2 */ + <0x>; /* int3 */ + }; + + liointc1: interrupt-controller@1fe11440 { + compatible = "loongson,liointc-2.0"; + reg = <0 0x1fe11440 0 0x40>, + <0 0x1fe11048 0 0x8>, + <0 0x1fe11148 0 0x8>; + reg-names = "main", "isr0", "isr1"; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <3>; + interrupt-names = "int1"; + +
[PATCH 3/6] MIPS: Loongson64: Add support for the 2K1000 to get cpu_clock_freq
Get the fixed-clock from the CPU0 node of the device tree. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- arch/mips/loongson64/time.c | 14 ++ 1 file changed, 14 insertions(+) diff --git a/arch/mips/loongson64/time.c b/arch/mips/loongson64/time.c index 91e842b58365..45698b18f4ae 100644 --- a/arch/mips/loongson64/time.c +++ b/arch/mips/loongson64/time.c @@ -11,9 +11,23 @@ #include #include +#include +#include void __init plat_time_init(void) { + struct clk *clk = NULL; + struct device_node *np; + + of_clk_init(NULL); + + np = of_get_cpu_node(0, NULL); + clk = of_clk_get(np, 0); + if (clk) { + cpu_clock_freq = clk_get_rate(clk); + clk_put(clk); + } + /* setup mips r4k timer */ mips_hpt_frequency = cpu_clock_freq / 2; -- 2.20.1
[PATCH 6/6] MIPS: Loongson64: Add a Loongson-2k default config file
Add default config for 2K1000. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- arch/mips/configs/loongson2k_defconfig | 353 + 1 file changed, 353 insertions(+) create mode 100644 arch/mips/configs/loongson2k_defconfig diff --git a/arch/mips/configs/loongson2k_defconfig b/arch/mips/configs/loongson2k_defconfig new file mode 100644 index ..e948ca487e2d --- /dev/null +++ b/arch/mips/configs/loongson2k_defconfig @@ -0,0 +1,353 @@ +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_KERNEL_LZMA=y +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_AUDIT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_MEMCG=y +CONFIG_BLK_CGROUP=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_SYSFS_DEPRECATED=y +CONFIG_RELAY=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EMBEDDED=y +CONFIG_MACH_LOONGSON64=y +# CONFIG_CPU_LOONGSON3_CPUCFG_EMULATION is not set +CONFIG_HZ_256=y +CONFIG_MIPS32_O32=y +CONFIG_MIPS32_N32=y +CONFIG_MODULES=y +CONFIG_MODULE_FORCE_LOAD=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_MQ_IOSCHED_DEADLINE=m +CONFIG_IOSCHED_BFQ=y +CONFIG_BFQ_GROUP_IOSCHED=y +CONFIG_BINFMT_MISC=m +CONFIG_KSM=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=y +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_NETFILTER=y +CONFIG_NETFILTER_NETLINK_LOG=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_DCCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_IP_VS=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_IP_SCTP=m +CONFIG_L2TP=m +CONFIG_BRIDGE=m +CONFIG_CFG80211=m +CONFIG_CFG80211_WEXT=y +CONFIG_MAC80211=m +CONFIG_RFKILL=m +CONFIG_RFKILL_INPUT=y +CONFIG_PCIEPORTBUS=y +CONFIG_HOTPLUG_PCI_PCIE=y +CONFIG_PCIEASPM_PERFORMANCE=y +CONFIG_HOTPLUG_PCI=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_MTD=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=y +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_SIZE=8192 +CONFIG_RAID_ATTRS=m +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_DEV_SR=y +CONFIG_CHR_DEV_SG=y +CONFIG_CHR_DEV_SCH=m +CONFIG_SCSI_CONSTANTS=y +CONFIG_SCSI_LOGGING=y +CONFIG_SCSI_SPI_ATTRS=m +CONFIG_SCSI_FC_ATTRS=m +CONFIG_ISCSI_TCP=m +CONFIG_MEGARAID_NEWGEN=y +CONFIG_MEGARAID_MM=y +CONFIG_MEGARAID_MAILBOX=y +CONFIG_MEGARAID_LEGACY=y +CONFIG_MEGARAID_SAS=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_PATA_ATIIXP=y +CONFIG_MD=y +CONFIG_BLK_DEV_MD=m +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_MD_RAID1=m +CONFIG_MD_RAID10=m +CONFIG_MD_RAID456=m +CONFIG_MD_MULTIPATH=m +CONFIG_BLK_DEV_DM=m +CONFIG_DM_CRYPT=m +CONFIG_DM_SNAPSHOT=m +CONFIG_DM_MIRROR=m +CONFIG_DM_ZERO=m +CONFIG_TARGET_CORE=m +CONFIG_TCM_IBLOCK=m +CONFIG_TCM_FILEIO=m +CONFIG_TCM_PSCSI=m +CONFIG_LOOPBACK_TARGET=m +CONFIG_ISCSI_TARGET=m +CONFIG_NETDEVICES=y +CONFIG_TUN=m +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_NET_VENDOR_ADAPTEC is not set +# CONFIG_NET_VENDOR_ALTEON is not set +# CONFIG_NET_VENDOR_AMD is not set +# CONFIG_NET_VENDOR_ARC is not set +# CONFIG_NET_VENDOR_ATHEROS is not set +# CONFIG_NET_VENDOR_BROADCOM is not set +# CONFIG_NET_VENDOR_BROCADE is not set +# CONFIG_NET_VENDOR_CHELSIO is not set +# CONFIG_NET_VENDOR_CIRRUS is not set +# CONFIG_NET_VENDOR_CISCO is not set +# CONFIG_NET_VENDOR_DEC is not set +# CONFIG_NET_VENDOR_DLINK is not set +# CONFIG_NET_VENDOR_EMULEX is not set +# CONFIG_NET_VENDOR_I825XX is not set +CONFIG_E1000=y +CONFIG_E1000E=y +CONFIG_IGB=y +CONFIG_IXGB=y +CONFIG_IXGBE=y +# CONFIG_NET_VENDOR_MARVELL is not set +# CONFIG_NET_VENDOR_MELLANOX is not set +# CONFIG_NET_VENDOR_MICREL is not set +# CONFIG_NET_VENDOR_MICROCHIP is not set +# CONFIG_NET_VENDOR_MICROSEMI is not set +# CONFIG_NET_VENDOR_MYRI is not set +# CONFIG_NET_VENDOR_NATSEMI is not set +# CONFIG_NET_VENDOR_NETERION is not set +# CONFIG_NET_VENDOR_NETRONOME is not set +# CONFIG_NET_VENDOR_NI is not set +# CONFIG_NET_VENDOR_NVIDIA is not set
[PATCH 5/6] irqchip/loongson-liointc: irqchip add 2.0 version.
Add IO interrupt controller support for Loongson 2k1000, different from the 3a series is that 2K1000 has 64 interrupt sources, 0-31 correspond to the device tree liointc0 device node, and the other correspond to liointc1 node. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- drivers/irqchip/irq-loongson-liointc.c | 55 +- 1 file changed, 46 insertions(+), 9 deletions(-) diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c index 9ed1bc473663..496e73bde597 100644 --- a/drivers/irqchip/irq-loongson-liointc.c +++ b/drivers/irqchip/irq-loongson-liointc.c @@ -20,6 +20,7 @@ #define LIOINTC_CHIP_IRQ 32 #define LIOINTC_NUM_PARENT 4 +#define LIOINTC_NUM_CORES 4 #define LIOINTC_INTC_CHIP_START0x20 @@ -42,6 +43,7 @@ struct liointc_handler_data { struct liointc_priv { struct irq_chip_generic *gc; struct liointc_handler_data handler[LIOINTC_NUM_PARENT]; + void __iomem*core_isr[LIOINTC_NUM_CORES]; u8 map_cache[LIOINTC_CHIP_IRQ]; boolhas_lpc_irq_errata; }; @@ -51,11 +53,12 @@ static void liointc_chained_handle_irq(struct irq_desc *desc) struct liointc_handler_data *handler = irq_desc_get_handler_data(desc); struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip_generic *gc = handler->priv->gc; + int core = get_ebase_cpunum() % LIOINTC_NUM_CORES; u32 pending; chained_irq_enter(chip, desc); - pending = readl(gc->reg_base + LIOINTC_REG_INTC_STATUS); + pending = readl(handler->priv->core_isr[core]); if (!pending) { /* Always blame LPC IRQ if we have that bug */ @@ -141,6 +144,15 @@ static void liointc_resume(struct irq_chip_generic *gc) } static const char * const parent_names[] = {"int0", "int1", "int2", "int3"}; +static const char * const core_reg_names[] = {"isr0", "isr1", "isr2", "isr3"}; + +static void __iomem *liointc_get_reg_byname(struct device_node *node, + const char *name) +{ + int index = of_property_match_string(node, "reg-names", name); + + return of_iomap(node, index); +} int __init liointc_of_init(struct device_node *node, struct device_node *parent) @@ -159,10 +171,28 @@ int __init liointc_of_init(struct device_node *node, if (!priv) return -ENOMEM; - base = of_iomap(node, 0); - if (!base) { - err = -ENODEV; - goto out_free_priv; + if (of_device_is_compatible(node, "loongson,liointc-2.0")) { + base = liointc_get_reg_byname(node, "main"); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + for (i = 0; i < LIOINTC_NUM_CORES; i++) { + priv->core_isr[i] = + liointc_get_reg_byname(node, core_reg_names[i]); + } + if (!priv->core_isr[0]) { + err = -ENODEV; + goto out_iounmap_base; + } + } else { + base = of_iomap(node, 0); + if (!base) { + err = -ENODEV; + goto out_free_priv; + } + for (i = 0; i < LIOINTC_NUM_CORES; i++) + priv->core_isr[i] = base + LIOINTC_REG_INTC_STATUS; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) { @@ -172,7 +202,7 @@ int __init liointc_of_init(struct device_node *node, } if (!have_parent) { err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } sz = of_property_read_variable_u32_array(node, @@ -183,7 +213,7 @@ int __init liointc_of_init(struct device_node *node, if (sz < 4) { pr_err("loongson-liointc: No parent_int_map\n"); err = -ENODEV; - goto out_iounmap; + goto out_iounmap_isr; } for (i = 0; i < LIOINTC_NUM_PARENT; i++) @@ -195,7 +225,7 @@ int __init liointc_of_init(struct device_node *node, if (!domain) { pr_err("loongson-liointc: cannot add IRQ domain\n"); err = -EINVAL; - goto out_iounmap; + goto out_iounmap_isr; } err = irq_alloc_domain_generic_chips(domain, 32, 1, @@ -260,7 +290,13 @@ int __init liointc_of_init(struct device_node *node, out_free_domain: irq_domain_remove(domain); -out_iounmap: +out_iounmap_isr: + for (i = 0; i <
[PATCH 2/6] MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI.
Add DTB boot support, only support LS2K1000 processor for now, determine whether to use the built-in DTB or the DTB from the firmware by checking the range of CKSEG0 and XKPHYS. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- .../include/asm/mach-loongson64/boot_param.h | 6 ++ arch/mips/include/asm/mach-loongson64/loongson.h | 3 ++- arch/mips/loongson64/env.c | 13 - arch/mips/loongson64/init.c | 16 ++-- 4 files changed, 34 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h index 4592841b6b0c..53c29a305ff0 100644 --- a/arch/mips/include/asm/mach-loongson64/boot_param.h +++ b/arch/mips/include/asm/mach-loongson64/boot_param.h @@ -198,7 +198,13 @@ enum loongson_bridge_type { VIRTUAL = 3 }; +enum loongson_fw_interface { + LOONGSON_LEFI = 0, + LOONGSON_DTB = 1, +}; + struct loongson_system_configuration { + enum loongson_fw_interface fw_interface; u32 nr_cpus; u32 nr_nodes; int cores_per_node; diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index ac1c20e172a2..3f885fa26ba6 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -23,7 +23,8 @@ extern u32 memsize, highmemsize; extern const struct plat_smp_ops loongson3_smp_ops; /* loongson-specific command line, env and memory initialization */ -extern void __init prom_init_env(void); +extern void __init prom_dtb_init_env(void); +extern void __init prom_lefi_init_env(void); extern void __init szmem(unsigned int node); extern void *loongson_fdt_blob; diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c index 51a5d050a94c..e7d3a06175e3 100644 --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -43,7 +43,18 @@ const char *get_system_type(void) return "Generic Loongson64 System"; } -void __init prom_init_env(void) + +void __init prom_dtb_init_env(void) +{ + if ((fw_arg2 < CKSEG0 || fw_arg2 > CKSEG1) + && (fw_arg2 < XKPHYS || fw_arg2 > XKSEG)) + + loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin; + else + loongson_fdt_blob = (void *)fw_arg2; +} + +void __init prom_lefi_init_env(void) { struct boot_params *boot_p; struct loongson_params *loongson_p; diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index cfa788bca871..8bef1ebab72d 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -52,6 +52,10 @@ void __init szmem(unsigned int node) static unsigned long num_physpages; u64 node_id, node_psize, start_pfn, end_pfn, mem_start, mem_size; + /* Otherwise come from DTB */ + if (loongson_sysconf.fw_interface != LOONGSON_LEFI) + return; + /* Parse memory information and activate */ for (i = 0; i < loongson_memmap->nr_map; i++) { node_id = loongson_memmap->map[i].node_id; @@ -94,12 +98,20 @@ static void __init prom_init_memory(void) void __init prom_init(void) { fw_init_cmdline(); - prom_init_env(); + + if (fw_arg2 == 0 || (be32_to_cpup((__be32 *)fw_arg2) == OF_DT_HEADER)) { + loongson_sysconf.fw_interface = LOONGSON_DTB; + prom_dtb_init_env(); + } else { + loongson_sysconf.fw_interface = LOONGSON_LEFI; + prom_lefi_init_env(); + } /* init base address of io space */ set_io_port_base(PCI_IOBASE); - loongson_sysconf.early_config(); + if (loongson_sysconf.early_config) + loongson_sysconf.early_config(); #ifdef CONFIG_NUMA prom_init_numa_memory(); -- 2.20.1
[PATCH 4/6] MIPS: Loongson64: Add 2K1000 early_printk_port
Distinguish between 3A series CPU and 2K1000 CPU UART0. Signed-off-by: Jiaxun Yang Signed-off-by: Qing Zhang Signed-off-by: Xingxing Su --- arch/mips/loongson64/init.c | 5 - 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index 8bef1ebab72d..a8ad02d8d088 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -120,7 +120,10 @@ void __init prom_init(void) #endif /* Hardcode to CPU UART 0 */ - setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE), 0, 1024); + else + setup_8250_early_printk_port(TO_UNCAC(LOONGSON_REG_BASE + 0x1e0), 0, 1024); register_smp_ops(&loongson3_smp_ops); board_nmi_handler_setup = mips_nmi_setup; -- 2.20.1
[PATCH 0/6] Add basic support for Loongson-2K1000
These patches support single-core DTS boot to the serial port login interface, which can be operated using conventional commands. I have successfully tested it on the Loongson 2K1000 machine. pmon: http://cgit.loongnix.org/cgit/pmon-loongson3/ Qing Zhang (6): MIPS: Loongson64: DeviceTree for 2K1000 MIPS: Loongson64: Distinguish firmware dependencies DTB/LEFI. MIPS: Loongson64: Add support for the 2K1000 to get cpu_clock_freq MIPS: Loongson64: Add 2K1000 early_printk_port irqchip/loongson-liointc: irqchip add 2.0 version. MIPS: Loongson64: Add a Loongson-2k default config file arch/mips/boot/dts/loongson/Makefile | 1 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 243 .../dts/loongson/loongson64_2core_2k1000.dts | 10 + arch/mips/configs/loongson2k_defconfig| 353 ++ .../include/asm/mach-loongson64/boot_param.h | 6 + .../asm/mach-loongson64/builtin_dtbs.h| 1 + .../include/asm/mach-loongson64/loongson.h| 3 +- arch/mips/loongson64/env.c| 13 +- arch/mips/loongson64/init.c | 21 +- arch/mips/loongson64/time.c | 14 + drivers/irqchip/irq-loongson-liointc.c| 55 ++- 11 files changed, 706 insertions(+), 14 deletions(-) create mode 100644 arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi create mode 100644 arch/mips/boot/dts/loongson/loongson64_2core_2k1000.dts create mode 100644 arch/mips/configs/loongson2k_defconfig -- 2.20.1
[PATCH v6 3/4] MIPS: Loongson64: DTS: Add SPI support to LS7A
Add spi support. Reviewed-by: Huacai Chen Signed-off-by: Qing Zhang --- v2: - Add spi about pci device DT v3: - Remove spiflash node v4: - Remove useless compatible v5: - Remove num-chipselects v6: - No changes --- arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 9 + 1 file changed, 9 insertions(+) diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi index f99a7a1..dba717d 100644 --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi @@ -405,6 +405,15 @@ interrupt-map-mask = <0 0 0 0>; interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>; }; + + spi@16,0 { + compatible = "pci0014,7a0b.0", + "pci0014,7a0b", + "pciclass088000", + "pciclass0880"; + + reg = <0xb000 0x0 0x0 0x0 0x0>; + }; }; isa { -- 2.1.0
[PATCH v6 4/4] MIPS: Loongson: Enable Loongson LS7A SPI in loongson3_defconfig
This is now supported, enable for Loongson systems. Reviewed-by: Huacai Chen Signed-off-by: Qing Zhang --- v2: - Modify CONFIG_SPI_LOONGSON to CONFIG_SPI_LS7A v3: - No changes v4: - No changes v5: - No changes v6: - No changes --- arch/mips/configs/loongson3_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 38a817e..28784cb 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -271,6 +271,9 @@ CONFIG_HW_RANDOM=y CONFIG_RAW_DRIVER=m CONFIG_I2C_CHARDEV=y CONFIG_I2C_PIIX4=y +CONFIG_SPI=y +CONFIG_SPI_MASTER=y +CONFIG_SPI_LS7A=y CONFIG_GPIO_LOONGSON=y CONFIG_SENSORS_LM75=m CONFIG_SENSORS_LM93=m -- 2.1.0
[PATCH v6 1/4] spi: LS7A: Add Loongson LS7A SPI controller driver support
The SPI controller has the following characteristics: - Full-duplex synchronous serial data transmission - Support up to 4 variable length byte transmission - Main mode support - Mode failure generates an error flag and issues an interrupt request - Double buffer receiver - Serial clock with programmable polarity and phase - SPI can be controlled in wait mode - Support boot from SPI Use mtd_debug tool to earse/write/read /dev/mtd0 on development. eg: [root@linux mtd-utils-1.0.0]# mtd_debug erase /dev/mtd0 0x2 0x4 Erased 262144 bytes from address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug write /dev/mtd0 0x2 13 1.img Copied 13 bytes from 1.img to address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug read /dev/mtd0 0x2 13 2.img Copied 13 bytes from address 0x0002 in flash to 2.img [root@linux mtd-utils-1.0.0]# cmp -l 1.img 2.img Signed-off-by: Qing Zhang --- v2: - keep Kconfig and Makefile sorted - make the entire comment a C++ one so things look more intentional - Fix unclear indentation - make conditional statements to improve legibility - Don't use static inline - the core handle message queue - Add a new binding document - Fix probe part mixed pdev and PCI v3: - expose set_cs to the core and let it handle things - replace transfer_one_message to transfer_one - replace spi_alloc_master to devm_spi_alloc_master - split out into prepare/unprepare_message - releases pci regions before unregister master v4: - names used in the manual - rename ls7a_spi_do_transfer to ls7a_spi_setup_transfer - change read the spcr and sper outside of this function - mode configuration moved to prepare instead - remove redundancy code about unprepare/prepare_message - used 0x4 instead of 0x1,WFEMPTY instead of RFEMPTY v5: - remove unnecessary blank lines v6: - keep blank line before the last "return xxx" --- drivers/spi/Kconfig| 7 ++ drivers/spi/Makefile | 1 + drivers/spi/spi-ls7a.c | 282 + 3 files changed, 290 insertions(+) create mode 100644 drivers/spi/spi-ls7a.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index aadaea0..af7c0d4 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -413,6 +413,13 @@ config SPI_LP8841_RTC Say N here unless you plan to run the kernel on an ICP DAS LP-8x4x industrial computer. +config SPI_LS7A + tristate "Loongson LS7A SPI Controller Support" + depends on CPU_LOONGSON64 || COMPILE_TEST + help + This drivers supports the Loongson LS7A SPI controller in master + SPI mode. + config SPI_MPC52xx tristate "Freescale MPC52xx SPI (non-PSC) controller support" depends on PPC_MPC52xx diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 6fea582..d015cf2 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -61,6 +61,7 @@ obj-$(CONFIG_SPI_LANTIQ_SSC) += spi-lantiq-ssc.o obj-$(CONFIG_SPI_JCORE)+= spi-jcore.o obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o obj-$(CONFIG_SPI_LP8841_RTC) += spi-lp8841-rtc.o +obj-$(CONFIG_SPI_LS7A) += spi-ls7a.o obj-$(CONFIG_SPI_MESON_SPICC) += spi-meson-spicc.o obj-$(CONFIG_SPI_MESON_SPIFC) += spi-meson-spifc.o obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o diff --git a/drivers/spi/spi-ls7a.c b/drivers/spi/spi-ls7a.c new file mode 100644 index 000..8592b85 --- /dev/null +++ b/drivers/spi/spi-ls7a.c @@ -0,0 +1,282 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Loongson LS7A SPI Controller driver +// +// Copyright (C) 2020 Loongson Technology Corporation Limited. +// + +#include +#include +#include + +/* define spi register */ +#defineSPCR0x00 +#defineSPSR0x01 +#defineFIFO0x02 +#defineSPER0x03 +#defineSFC_PARAM 0x04 +#defineSFC_SOFTCS 0x05 +#defineSFC_TIMING 0x06 + +struct ls7a_spi { + struct spi_master *master; + void __iomem *base; + unsigned int hz; + unsigned int mode; +}; + +static void ls7a_spi_write_reg(struct ls7a_spi *spi, + unsigned char reg, + unsigned char data) +{ + writeb(data, spi->base + reg); +} + +static char ls7a_spi_read_reg(struct ls7a_spi *spi, unsigned char reg) +{ + return readb(spi->base + reg); +} + +static int ls7a_spi_prepare_message(struct spi_master *master, + struct spi_message *msg) +{ + struct ls7a_spi *ls7a_spi; + struct spi_device *spi = msg->spi; + unsigned char val; + + ls7a_spi = spi_master_get_devdata(master); + + if (ls7a_spi->mode != spi->mode) { + val = ls7a_spi_read_reg(ls7a_spi, SPCR); + val &= ~0xc; + if (
[PATCH v6 2/4] spi: ls7a: Add YAML schemas
Switch the DT binding to a YAML schema to enable the DT validation. Reviewed-by: Huacai Chen Signed-off-by: Qing Zhang --- v4: - fix warnings/errors about running 'make dt_binding_check' v5: - remove num-chipelects v6: - No changes --- .../devicetree/bindings/spi/loongson,spi-ls7a.yaml | 44 ++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml diff --git a/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml new file mode 100644 index 000..b90b28b --- /dev/null +++ b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/loongson,spi-ls7a.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson LS7A PCH SPI Controller + +maintainers: + - Qing Zhang + +description: | + This controller can be found in Loongson-3 systems with LS7A PCH. + +properties: + compatible: +const: loongson,ls7a-spi + + reg: +maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | +pci { +#address-cells = <3>; +#size-cells = <2>; + +spi@16,0 { +compatible = "pci0014,7a0b.0", + "pci0014,7a0b", + "pciclass088000", + "pciclass0800"; + +reg = <0xb000 0x0 0x0 0x0 0x0>; +}; +}; + +... -- 2.1.0
[PATCH v5 1/4] spi: LS7A: Add Loongson LS7A SPI controller driver support
The SPI controller has the following characteristics: - Full-duplex synchronous serial data transmission - Support up to 4 variable length byte transmission - Main mode support - Mode failure generates an error flag and issues an interrupt request - Double buffer receiver - Serial clock with programmable polarity and phase - SPI can be controlled in wait mode - Support boot from SPI Use mtd_debug tool to earse/write/read /dev/mtd0 on development. eg: [root@linux mtd-utils-1.0.0]# mtd_debug erase /dev/mtd0 0x2 0x4 Erased 262144 bytes from address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug write /dev/mtd0 0x2 13 1.img Copied 13 bytes from 1.img to address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug read /dev/mtd0 0x2 13 2.img Copied 13 bytes from address 0x0002 in flash to 2.img [root@linux mtd-utils-1.0.0]# cmp -l 1.img 2.img Signed-off-by: Qing Zhang --- v2: - keep Kconfig and Makefile sorted - make the entire comment a C++ one so things look more intentional - Fix unclear indentation - make conditional statements to improve legibility - Don't use static inline - the core handle message queue - Add a new binding document - Fix probe part mixed pdev and PCI v3: - expose set_cs to the core and let it handle things - replace transfer_one_message to transfer_one - replace spi_alloc_master to devm_spi_alloc_master - split out into prepare/unprepare_message - releases pci regions before unregister master v4: - names used in the manual - rename ls7a_spi_do_transfer to ls7a_spi_setup_transfer - change read the spcr and sper outside of this function - mode configuration moved to prepare instead - remove redundancy code about unprepare/prepare_message - used 0x4 instead of 0x1,WFEMPTY instead of RFEMPTY v5: - remove unnecessary blank lines --- drivers/spi/Kconfig| 7 ++ drivers/spi/Makefile | 1 + drivers/spi/spi-ls7a.c | 280 + 3 files changed, 288 insertions(+) create mode 100644 drivers/spi/spi-ls7a.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index aadaea0..af7c0d4 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -413,6 +413,13 @@ config SPI_LP8841_RTC Say N here unless you plan to run the kernel on an ICP DAS LP-8x4x industrial computer. +config SPI_LS7A + tristate "Loongson LS7A SPI Controller Support" + depends on CPU_LOONGSON64 || COMPILE_TEST + help + This drivers supports the Loongson LS7A SPI controller in master + SPI mode. + config SPI_MPC52xx tristate "Freescale MPC52xx SPI (non-PSC) controller support" depends on PPC_MPC52xx diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 6fea582..d015cf2 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -61,6 +61,7 @@ obj-$(CONFIG_SPI_LANTIQ_SSC) += spi-lantiq-ssc.o obj-$(CONFIG_SPI_JCORE)+= spi-jcore.o obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o obj-$(CONFIG_SPI_LP8841_RTC) += spi-lp8841-rtc.o +obj-$(CONFIG_SPI_LS7A) += spi-ls7a.o obj-$(CONFIG_SPI_MESON_SPICC) += spi-meson-spicc.o obj-$(CONFIG_SPI_MESON_SPIFC) += spi-meson-spifc.o obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o diff --git a/drivers/spi/spi-ls7a.c b/drivers/spi/spi-ls7a.c new file mode 100644 index 000..d24b6d91 --- /dev/null +++ b/drivers/spi/spi-ls7a.c @@ -0,0 +1,280 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Loongson LS7A SPI Controller driver +// +// Copyright (C) 2020 Loongson Technology Corporation Limited. +// + +#include +#include +#include + +/* define spi register */ +#defineSPCR0x00 +#defineSPSR0x01 +#defineFIFO0x02 +#defineSPER0x03 +#defineSFC_PARAM 0x04 +#defineSFC_SOFTCS 0x05 +#defineSFC_TIMING 0x06 + +struct ls7a_spi { + struct spi_master *master; + void __iomem *base; + unsigned int hz; + unsigned int mode; +}; + +static void ls7a_spi_write_reg(struct ls7a_spi *spi, + unsigned char reg, + unsigned char data) +{ + writeb(data, spi->base + reg); +} + +static char ls7a_spi_read_reg(struct ls7a_spi *spi, unsigned char reg) +{ + return readb(spi->base + reg); +} + +static int ls7a_spi_prepare_message(struct spi_master *master, + struct spi_message *msg) +{ + struct ls7a_spi *ls7a_spi; + struct spi_device *spi = msg->spi; + unsigned char val; + + ls7a_spi = spi_master_get_devdata(master); + + if (ls7a_spi->mode != spi->mode) { + val = ls7a_spi_read_reg(ls7a_spi, SPCR); + val &= ~0xc; + if (spi->mode & SPI_CPOL) +
[PATCH v5 3/4] MIPS: Loongson64: DTS: Add SPI support to LS7A
Add spi support. Signed-off-by: Qing Zhang --- v2: - Add spi about pci device DT v3: - Remove spiflash node v4: - Remove useless compatible v5: - Remove num-chipselects --- arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 9 + 1 file changed, 9 insertions(+) diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi index f99a7a1..dba717d 100644 --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi @@ -405,6 +405,15 @@ interrupt-map-mask = <0 0 0 0>; interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>; }; + + spi@16,0 { + compatible = "pci0014,7a0b.0", + "pci0014,7a0b", + "pciclass088000", + "pciclass0880"; + + reg = <0xb000 0x0 0x0 0x0 0x0>; + }; }; isa { -- 2.1.0
[PATCH v5 2/4] spi: ls7a: Add YAML schemas
Switch the DT binding to a YAML schema to enable the DT validation. Signed-off-by: Qing Zhang --- v4: - fix warnings/errors about running 'make dt_binding_check' v5: - remove num-chipelects --- .../devicetree/bindings/spi/loongson,spi-ls7a.yaml | 44 ++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml diff --git a/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml new file mode 100644 index 000..b90b28b --- /dev/null +++ b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/loongson,spi-ls7a.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson LS7A PCH SPI Controller + +maintainers: + - Qing Zhang + +description: | + This controller can be found in Loongson-3 systems with LS7A PCH. + +properties: + compatible: +const: loongson,ls7a-spi + + reg: +maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | +pci { +#address-cells = <3>; +#size-cells = <2>; + +spi@16,0 { +compatible = "pci0014,7a0b.0", + "pci0014,7a0b", + "pciclass088000", + "pciclass0800"; + +reg = <0xb000 0x0 0x0 0x0 0x0>; +}; +}; + +... -- 2.1.0
[PATCH v5 4/4] MIPS: Loongson: Enable Loongson LS7A SPI in loongson3_defconfig
This is now supported, enable for Loongson systems. Reviewed-by: Huacai Chen Signed-off-by: Qing Zhang --- v2: - Modify CONFIG_SPI_LOONGSON to CONFIG_SPI_LS7A v3: - No changes v4: - No changes v5: - No changes --- arch/mips/configs/loongson3_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 38a817e..28784cb 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -271,6 +271,9 @@ CONFIG_HW_RANDOM=y CONFIG_RAW_DRIVER=m CONFIG_I2C_CHARDEV=y CONFIG_I2C_PIIX4=y +CONFIG_SPI=y +CONFIG_SPI_MASTER=y +CONFIG_SPI_LS7A=y CONFIG_GPIO_LOONGSON=y CONFIG_SENSORS_LM75=m CONFIG_SENSORS_LM93=m -- 2.1.0
[PATCH v4 3/4] MIPS: Loongson64: DTS: Add SPI support to LS7A
add spi support. Signed-off-by: Qing Zhang --- v2: - Add spi about pci device DT v3: - Remove spiflash node v4: - Remove useless compatible --- arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 10 ++ 1 file changed, 10 insertions(+) diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi index f99a7a1..f4919c3 100644 --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi @@ -405,6 +405,16 @@ interrupt-map-mask = <0 0 0 0>; interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>; }; + + spi@16,0 { + compatible = "pci0014,7a0b.0", + "pci0014,7a0b", + "pciclass088000", + "pciclass0880"; + + reg = <0xb000 0x0 0x0 0x0 0x0>; + num-chipselects = <0>; + }; }; isa { -- 2.1.0
[PATCH v4 1/4] spi: LS7A: Add Loongson LS7A SPI controller driver support
The SPI controller has the following characteristics: - Full-duplex synchronous serial data transmission - Support up to 4 variable length byte transmission - Main mode support - Mode failure generates an error flag and issues an interrupt request - Double buffer receiver - Serial clock with programmable polarity and phase - SPI can be controlled in wait mode - Support boot from SPI Use mtd_debug tool to earse/write/read /dev/mtd0 on development. eg: [root@linux mtd-utils-1.0.0]# mtd_debug erase /dev/mtd0 0x2 0x4 Erased 262144 bytes from address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug write /dev/mtd0 0x2 13 1.img Copied 13 bytes from 1.img to address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug read /dev/mtd0 0x2 13 2.img Copied 13 bytes from address 0x0002 in flash to 2.img [root@linux mtd-utils-1.0.0]# cmp -l 1.img 2.img Signed-off-by: Qing Zhang --- v2: - keep Kconfig and Makefile sorted - make the entire comment a C++ one so things look more intentional - Fix unclear indentation - make conditional statements to improve legibility - Don't use static inline - the core handle message queue - Add a new binding document - Fix probe part mixed pdev and PCI v3: - expose set_cs to the core and let it handle things - replace transfer_one_message to transfer_one - replace spi_alloc_master to devm_spi_alloc_master - split out into prepare/unprepare_message - releases pci regions before unregister master v4: - names used in the manual - rename ls7a_spi_do_transfer to ls7a_spi_setup_transfer - change read the spcr and sper outside of this function - mode configuration moved to prepare instead - remove redundancy code about unprepare/prepare_message - used 0x4 instead of 0x1,WFEMPTY instead of RFEMPTY --- drivers/spi/Kconfig| 7 ++ drivers/spi/Makefile | 1 + drivers/spi/spi-ls7a.c | 283 + 3 files changed, 291 insertions(+) create mode 100644 drivers/spi/spi-ls7a.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index aadaea0..af7c0d4 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -413,6 +413,13 @@ config SPI_LP8841_RTC Say N here unless you plan to run the kernel on an ICP DAS LP-8x4x industrial computer. +config SPI_LS7A + tristate "Loongson LS7A SPI Controller Support" + depends on CPU_LOONGSON64 || COMPILE_TEST + help + This drivers supports the Loongson LS7A SPI controller in master + SPI mode. + config SPI_MPC52xx tristate "Freescale MPC52xx SPI (non-PSC) controller support" depends on PPC_MPC52xx diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 6fea582..d015cf2 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -61,6 +61,7 @@ obj-$(CONFIG_SPI_LANTIQ_SSC) += spi-lantiq-ssc.o obj-$(CONFIG_SPI_JCORE)+= spi-jcore.o obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o obj-$(CONFIG_SPI_LP8841_RTC) += spi-lp8841-rtc.o +obj-$(CONFIG_SPI_LS7A) += spi-ls7a.o obj-$(CONFIG_SPI_MESON_SPICC) += spi-meson-spicc.o obj-$(CONFIG_SPI_MESON_SPIFC) += spi-meson-spifc.o obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o diff --git a/drivers/spi/spi-ls7a.c b/drivers/spi/spi-ls7a.c new file mode 100644 index 000..d2be370 --- /dev/null +++ b/drivers/spi/spi-ls7a.c @@ -0,0 +1,283 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Loongson LS7A SPI Controller driver +// +// Copyright (C) 2020 Loongson Technology Corporation Limited. +// + +#include +#include +#include + +/* define spi register */ +#defineSPCR0x00 +#defineSPSR0x01 +#defineFIFO0x02 +#defineSPER0x03 +#defineSFC_PARAM 0x04 +#defineSFC_SOFTCS 0x05 +#defineSFC_TIMING 0x06 + +struct ls7a_spi { + struct spi_master *master; + void __iomem *base; + unsigned int hz; + unsigned int mode; +}; + +static void ls7a_spi_write_reg(struct ls7a_spi *spi, + unsigned char reg, + unsigned char data) +{ + writeb(data, spi->base + reg); +} + +static char ls7a_spi_read_reg(struct ls7a_spi *spi, unsigned char reg) +{ + return readb(spi->base + reg); +} + +static int ls7a_spi_prepare_message(struct spi_master *master, + struct spi_message *msg) +{ + struct ls7a_spi *ls7a_spi; + struct spi_device *spi = msg->spi; + unsigned char val; + + ls7a_spi = spi_master_get_devdata(master); + + if (ls7a_spi->mode != spi->mode) { + val = ls7a_spi_read_reg(ls7a_spi, SPCR); + val &= ~0xc; + if (spi->mode & SPI_CPOL) + val |= 8; + if (spi
[PATCH v4 4/4] MIPS: Loongson: Enable Loongson LS7A SPI in loongson3_defconfig
This is now supported, enable for Loongson systems. Signed-off-by: Qing Zhang --- v2: - Modify CONFIG_SPI_LOONGSON to CONFIG_SPI_LS7A v3: - No changes v4: - No changes --- arch/mips/configs/loongson3_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 38a817e..28784cb 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -271,6 +271,9 @@ CONFIG_HW_RANDOM=y CONFIG_RAW_DRIVER=m CONFIG_I2C_CHARDEV=y CONFIG_I2C_PIIX4=y +CONFIG_SPI=y +CONFIG_SPI_MASTER=y +CONFIG_SPI_LS7A=y CONFIG_GPIO_LOONGSON=y CONFIG_SENSORS_LM75=m CONFIG_SENSORS_LM93=m -- 2.1.0
[PATCH v4 2/4] spi: ls7a: Add YAML schemas
Switch the DT binding to a YAML schema to enable the DT validation. Signed-off-by: Qing Zhang --- v4: fix warnings/errors about running 'make dt_binding_check' --- .../devicetree/bindings/spi/loongson,spi-ls7a.yaml | 46 ++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml diff --git a/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml new file mode 100644 index 000..8cc9bc5 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/loongson,spi-ls7a.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson LS7A PCH SPI Controller + +maintainers: + - Qing Zhang + +description: | + This controller can be found in Loongson-3 systems with LS7A PCH. + +properties: + compatible: +const: loongson,ls7a-spi + + reg: +maxItems: 1 + +required: + - compatible + - reg + - num-chipselects + +additionalProperties: false + +examples: + - | +pci { +#address-cells = <3>; +#size-cells = <2>; + +spi@16,0 { +compatible = "pci0014,7a0b.0", +"pci0014,7a0b", +"pciclass088000", +"pciclass0800"; + +reg = <0xb000 0x0 0x0 0x0 0x0>; +num-chipselects = <0>; +}; +}; + +... -- 2.1.0
[PATCH v3 1/4] spi: LS7A: Add Loongson LS7A SPI controller driver support
The SPI controller has the following characteristics: - Full-duplex synchronous serial data transmission - Support up to 4 variable length byte transmission - Main mode support - Mode failure generates an error flag and issues an interrupt request - Double buffer receiver - Serial clock with programmable polarity and phase - SPI can be controlled in wait mode - Support boot from SPI Use mtd_debug tool to earse/write/read /dev/mtd0 on development. eg: [root@linux mtd-utils-1.0.0]# mtd_debug erase /dev/mtd0 0x2 0x4 Erased 262144 bytes from address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug write /dev/mtd0 0x2 13 1.img Copied 13 bytes from 1.img to address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug read /dev/mtd0 0x2 13 2.img Copied 13 bytes from address 0x0002 in flash to 2.img [root@linux mtd-utils-1.0.0]# cmp -l 1.img 2.img Signed-off-by: Juxin Gao Signed-off-by: Qing Zhang --- v2: - keep Kconfig and Makefile sorted - make the entire comment a C++ one so things look more intentional - Fix unclear indentation - make conditional statements to improve legibility - Don't use static inline - the core handle message queue - Add a new binding document - Fix probe part mixed pdev and PCI v3: - expose set_cs to the core and let it handle things - replace transfer_one_message to transfer_one - replace spi_alloc_master to devm_spi_alloc_master - split out into prepare/unprepare_message - releases pci regions before unregister master --- drivers/spi/Kconfig| 7 ++ drivers/spi/Makefile | 1 + drivers/spi/spi-ls7a.c | 293 + 3 files changed, 301 insertions(+) create mode 100644 drivers/spi/spi-ls7a.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index aadaea0..af7c0d4 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -413,6 +413,13 @@ config SPI_LP8841_RTC Say N here unless you plan to run the kernel on an ICP DAS LP-8x4x industrial computer. +config SPI_LS7A + tristate "Loongson LS7A SPI Controller Support" + depends on CPU_LOONGSON64 || COMPILE_TEST + help + This drivers supports the Loongson LS7A SPI controller in master + SPI mode. + config SPI_MPC52xx tristate "Freescale MPC52xx SPI (non-PSC) controller support" depends on PPC_MPC52xx diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 6fea582..d015cf2 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -61,6 +61,7 @@ obj-$(CONFIG_SPI_LANTIQ_SSC) += spi-lantiq-ssc.o obj-$(CONFIG_SPI_JCORE)+= spi-jcore.o obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o obj-$(CONFIG_SPI_LP8841_RTC) += spi-lp8841-rtc.o +obj-$(CONFIG_SPI_LS7A) += spi-ls7a.o obj-$(CONFIG_SPI_MESON_SPICC) += spi-meson-spicc.o obj-$(CONFIG_SPI_MESON_SPIFC) += spi-meson-spifc.o obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o diff --git a/drivers/spi/spi-ls7a.c b/drivers/spi/spi-ls7a.c new file mode 100644 index 000..d3b7e86 --- /dev/null +++ b/drivers/spi/spi-ls7a.c @@ -0,0 +1,293 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Loongson LS7A SPI Controller driver +// +// Copyright (C) 2020 Loongson Technology Corporation Limited. +// + +#include +#include +#include + +/* define spi register */ +#defineSPCR0x00 +#defineSPSR0x01 +#defineFIFO0x02 +#defineSPER0x03 +#definePARA0x04 +#defineSFCS0x05 +#defineTIMI0x06 + +struct ls7a_spi { + spinlock_t lock; + struct spi_master *master; + void __iomem *base; + unsigned int hz; + unsigned char spcr, sper; + unsigned int mode; +}; + +static void ls7a_spi_write_reg(struct ls7a_spi *spi, + unsigned char reg, + unsigned char data) +{ + writeb(data, spi->base + reg); +} + +static char ls7a_spi_read_reg(struct ls7a_spi *spi, unsigned char reg) +{ + return readb(spi->base + reg); +} + +static int ls7a_spi_prepare_message(struct spi_master *master, + struct spi_message *msg) +{ + struct ls7a_spi *ls7a_spi; + int param; + + ls7a_spi = spi_master_get_devdata(master); + + spin_lock(&ls7a_spi->lock); + param = ls7a_spi_read_reg(ls7a_spi, PARA); + ls7a_spi_write_reg(ls7a_spi, PARA, param &= ~1); + spin_unlock(&ls7a_spi->lock); + + return 0; +} + +static int ls7a_spi_unprepare_message(struct spi_master *master, + struct spi_message *msg) +{ + struct ls7a_spi *ls7a_spi; + int param = 0; + + ls7a_spi = spi_master_get_devdata(master); + + spin_lock(&ls7a_spi->lock); + ls7a_spi_write_reg(ls7a_spi, PARA, param); + spin_unlock
[PATCH v3 3/4] MIPS: Loongson64: DTS: Add SPI support to LS7A
add spi support. Signed-off-by: Qing Zhang --- v2: - Add spi about pci device DT v3: - Remove spiflash node --- arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 12 1 file changed, 12 insertions(+) diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi index f99a7a1..d91857c 100644 --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi @@ -405,6 +405,18 @@ interrupt-map-mask = <0 0 0 0>; interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>; }; + + spi@16,0 { + compatible = "pci0014,7a0b.0", + "pci0014,7a0b", + "pciclass088000", + "pciclass0880"; + + reg = <0xb000 0x0 0x0 0x0 0x0>; + #address-cells = <1>; + #size-cells = <0>; + num-chipselects = <0>; + }; }; isa { -- 2.1.0
[PATCH v3 4/4] MIPS: Loongson: Enable Loongson LS7A SPI in loongson3_defconfig
This is now supported, enable for Loongson systems. Signed-off-by: Qing Zhang --- v2: - Modify CONFIG_SPI_LOONGSON to CONFIG_SPI_LS7A v3: - No changes --- arch/mips/configs/loongson3_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 38a817e..28784cb 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -271,6 +271,9 @@ CONFIG_HW_RANDOM=y CONFIG_RAW_DRIVER=m CONFIG_I2C_CHARDEV=y CONFIG_I2C_PIIX4=y +CONFIG_SPI=y +CONFIG_SPI_MASTER=y +CONFIG_SPI_LS7A=y CONFIG_GPIO_LOONGSON=y CONFIG_SENSORS_LM75=m CONFIG_SENSORS_LM93=m -- 2.1.0
[PATCH v3 2/4] spi: ls7a: Add YAML schemas
Switch the DT binding to a YAML schema to enable the DT validation. Signed-off-by: Qing Zhang --- .../devicetree/bindings/spi/loongson,spi-ls7a.yaml | 49 ++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml diff --git a/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml new file mode 100644 index 000..41691c8 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/spi-ls7a.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson LS7A PCH SPI Controller + +all0f: + - $ref: "spi-controller.yaml#" + +maintainers: + - Qing Zhang + +description: | + This controller can be found in Loongson-3 systems with LS7A PCH. + +properties: + "#address-cells": true + "#size-cells": true + + compatible: +const: loongson,ls7a-spi + + reg: +maxItems: 1 + +required: + - compatible + - reg + - num-chipselects + +unevaluatedProperties: false + +examples: + - | +spi@16,0 { +compatible = "pci0014,7a0b.0", +"pci0014,7a0b", +"pciclass088000", +"pciclass0800"; + +reg = <0xb000 0x0 0x0 0x0 0x0>; +#address-cells = <1>; +#size-cells = <0>; +num-chipselects = <0>; +}; + +... -- 2.1.0
[PATCH v2 1/4] spi: LS7A: Add Loongson LS7A SPI controller driver support
The SPI controller has the following characteristics: - Full-duplex synchronous serial data transmission - Support up to 4 variable length byte transmission - Main mode support - Mode failure generates an error flag and issues an interrupt request - Double buffer receiver - Serial clock with programmable polarity and phase - SPI can be controlled in wait mode - Support boot from SPI Use mtd_debug tool to earse/write/read /dev/mtd0 on development. eg: [root@linux mtd-utils-1.0.0]# mtd_debug erase /dev/mtd0 0x2 0x4 Erased 262144 bytes from address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug write /dev/mtd0 0x2 13 1.img Copied 13 bytes from 1.img to address 0x0002 in flash [root@linux mtd-utils-1.0.0]# mtd_debug read /dev/mtd0 0x2 13 2.img Copied 13 bytes from address 0x0002 in flash to 2.img [root@linux mtd-utils-1.0.0]# cmp -l 1.img 2.img Signed-off-by: Juxin Gao Signed-off-by: Qing Zhang --- v2: - keep Kconfig and Makefile sorted - make the entire comment a C++ one so things look more intentional - Fix unclear indentation - make conditional statements to improve legibility - Don't use static inline - the core handle message queue - Add a new binding document - Fix probe part mixed pdev and PCI --- drivers/spi/Kconfig| 7 ++ drivers/spi/Makefile | 1 + drivers/spi/spi-ls7a.c | 324 + 3 files changed, 332 insertions(+) create mode 100644 drivers/spi/spi-ls7a.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index aadaea0..af7c0d4 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -413,6 +413,13 @@ config SPI_LP8841_RTC Say N here unless you plan to run the kernel on an ICP DAS LP-8x4x industrial computer. +config SPI_LS7A + tristate "Loongson LS7A SPI Controller Support" + depends on CPU_LOONGSON64 || COMPILE_TEST + help + This drivers supports the Loongson LS7A SPI controller in master + SPI mode. + config SPI_MPC52xx tristate "Freescale MPC52xx SPI (non-PSC) controller support" depends on PPC_MPC52xx diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 6fea582..d015cf2 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -61,6 +61,7 @@ obj-$(CONFIG_SPI_LANTIQ_SSC) += spi-lantiq-ssc.o obj-$(CONFIG_SPI_JCORE)+= spi-jcore.o obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o obj-$(CONFIG_SPI_LP8841_RTC) += spi-lp8841-rtc.o +obj-$(CONFIG_SPI_LS7A) += spi-ls7a.o obj-$(CONFIG_SPI_MESON_SPICC) += spi-meson-spicc.o obj-$(CONFIG_SPI_MESON_SPIFC) += spi-meson-spifc.o obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o diff --git a/drivers/spi/spi-ls7a.c b/drivers/spi/spi-ls7a.c new file mode 100644 index 000..21ca1ab --- /dev/null +++ b/drivers/spi/spi-ls7a.c @@ -0,0 +1,324 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Loongson LS7A SPI Controller driver + * + * Copyright (C) 2020 Loongson Technology Corporation Limited + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* define spi register */ +#defineSPCR0x00 +#defineSPSR0x01 +#defineFIFO0x02 +#defineSPER0x03 +#definePARA0x04 +#defineSFCS0x05 +#defineTIMI0x06 + +struct ls7a_spi { + spinlock_t lock; + struct spi_master *master; + void __iomem *base; + int cs_active; + unsigned int hz; + unsigned char spcr, sper; + unsigned int mode; +}; + +static void ls7a_spi_write_reg(struct ls7a_spi *spi, + unsigned char reg, + unsigned char data) +{ + writeb(data, spi->base + reg); +} + +static char ls7a_spi_read_reg(struct ls7a_spi *spi, + unsigned char reg) +{ + return readb(spi->base + reg); +} + +static int set_cs(struct ls7a_spi *ls7a_spi, struct spi_device *spi, int val) +{ + int cs = ls7a_spi_read_reg(ls7a_spi, SFCS) & ~(0x11 << spi->chip_select); + + if (spi->mode & SPI_CS_HIGH) + val = !val; + ls7a_spi_write_reg(ls7a_spi, SFCS, + (val ? (0x11 << spi->chip_select):(0x1 << spi->chip_select)) | cs); + + return 0; +} + +static int ls7a_spi_do_transfer(struct ls7a_spi *ls7a_spi, + struct spi_device *spi, + struct spi_transfer *t) +{ + unsigned int hz; + unsigned int div, div_tmp; + unsigned int bit; + unsigned long clk; + unsigned char val; + const char rdiv[12] = {0, 1, 4, 2, 3, 5, 6, 7, 8, 9, 10, 11}; + + if (t) { + hz = t->speed_hz; + if (!hz) + hz = spi->max_speed_hz; +
[PATCH v2 2/4] spi: Add devicetree bindings documentation for Loongson SPI
Add spi-ls7a binding documentation. Signed-off-by: Qing Zhang --- Documentation/devicetree/bindings/spi/spi-ls7a.txt | 31 ++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-ls7a.txt diff --git a/Documentation/devicetree/bindings/spi/spi-ls7a.txt b/Documentation/devicetree/bindings/spi/spi-ls7a.txt new file mode 100644 index 000..56247b5 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-ls7a.txt @@ -0,0 +1,31 @@ +Binding for LOONGSON LS7A SPI controller + +Required properties: +- compatible: should be "pci0014,7a0b.0","pci0014,7a0b","pciclass088000","pciclass0880". +- reg: reference IEEE Std 1275-1994. +- #address-cells: <1>, as required by generic SPI binding. +- #size-cells: <0>, also as required by generic SPI binding. +- #interrupts: No hardware interrupt. + +Child nodes as per the generic SPI binding. + +Example: + + spi@16,0 { + compatible = "pci0014,7a0b.0", + "pci0014,7a0b", + "pciclass088000", + "pciclass0880"; + + #address-cells = <1>; + #size-cells = <0>; + reg = <0xb000 0x0 0x0 0x0 0x0>; + num-chipselects = <0>; + spiflash: s25fl016k@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible ="spansion,s25fl016k","jedec,spi-nor"; + spi-max-frequency=<5000>; + reg=<0>; + }; + }; -- 2.1.0
[PATCH v2 4/4] MIPS: Loongson: Enable Loongson LS7A SPI in loongson3_defconfig
This is now supported, enable for Loongson systems. Signed-off-by: Qing Zhang --- v2: - Modify CONFIG_SPI_LOONGSON to CONFIG_SPI_LS7A --- arch/mips/configs/loongson3_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 38a817e..28784cb 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -271,6 +271,9 @@ CONFIG_HW_RANDOM=y CONFIG_RAW_DRIVER=m CONFIG_I2C_CHARDEV=y CONFIG_I2C_PIIX4=y +CONFIG_SPI=y +CONFIG_SPI_MASTER=y +CONFIG_SPI_LS7A=y CONFIG_GPIO_LOONGSON=y CONFIG_SENSORS_LM75=m CONFIG_SENSORS_LM93=m -- 2.1.0
[PATCH v2 3/4] MIPS: Loongson64: DTS: Add SPI support to LS7A
add spi and amd node support. Signed-off-by: Qing Zhang --- v2: - Add spi about pci device DT --- arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 20 1 file changed, 20 insertions(+) diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi index f99a7a1..ab8836b 100644 --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi @@ -405,6 +405,26 @@ interrupt-map-mask = <0 0 0 0>; interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>; }; + + spi@16,0 { + compatible = "pci0014,7a0b.0", + "pci0014,7a0b", + "pciclass088000", + "pciclass0880"; + + #address-cells = <1>; + #size-cells = <0>; + + reg = <0xb000 0x0 0x0 0x0 0x0>; + num-chipselects = <0>; + spiflash: s25fl016k@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible ="spansion,s25fl016k","jedec,spi-nor"; + spi-max-frequency=<5000>; + reg=<0>; + }; + }; }; isa { -- 2.1.0
[PATCH 1/3] spi: Loongson: Add Loongson 3A+7A SPI controller driver support
This module is integrated into the Loongson-3A SoC and the LS7A bridge chip. The SPI controller has the following characteristics: -Full-duplex synchronous serial data transmission -Support up to 4 variable length byte transmission -Main mode support -Mode failure generates an error flag and issues an interrupt request -Double buffer receiver -Serial clock with programmable polarity and phase -SPI can be controlled in wait mode -Support boot from SPI Loongson bridge chip and SOC are connected to the nor-flash slave device, the model is en25q32b, and the device driver under the mtd subsystem is used for testing. Signed-off-by: Qing Zhang --- drivers/spi/Kconfig| 6 + drivers/spi/Makefile | 1 + drivers/spi/spi-loongson.c | 428 + 3 files changed, 435 insertions(+) create mode 100644 drivers/spi/spi-loongson.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 3fd16b7..83610be 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -968,6 +968,12 @@ config SPI_AMD help Enables SPI controller driver for AMD SoC. +config SPI_LOONGSON +tristate "Loongson SPI Controller Support" +depends on CPU_LOONGSON32 || CPU_LOONGSON64 +help + This is the driver for Loongson spi master controller. + # # Add new SPI master controllers in alphabetical order above this line # diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 6fea582..5739c0e 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -131,6 +131,7 @@ obj-$(CONFIG_SPI_XTENSA_XTFPGA) += spi-xtensa-xtfpga.o obj-$(CONFIG_SPI_ZYNQ_QSPI)+= spi-zynq-qspi.o obj-$(CONFIG_SPI_ZYNQMP_GQSPI) += spi-zynqmp-gqspi.o obj-$(CONFIG_SPI_AMD) += spi-amd.o +obj-$(CONFIG_SPI_LOONGSON) += spi-loongson.o # SPI slave protocol handlers obj-$(CONFIG_SPI_SLAVE_TIME) += spi-slave-time.o diff --git a/drivers/spi/spi-loongson.c b/drivers/spi/spi-loongson.c new file mode 100644 index 000..3e488fb --- /dev/null +++ b/drivers/spi/spi-loongson.c @@ -0,0 +1,428 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Loongson3A+7A SPI driver + * + * Copyright (C) 2017 Juxin Gao + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +/*define spi register */ +#defineSPCR0x00 +#defineSPSR0x01 +#define FIFO 0x02 +#defineSPER0x03 +#definePARA0x04 +#defineSFCS0x05 +#defineTIMI0x06 + +struct loongson_spi { + struct work_struct work; + spinlock_t lock; + struct workqueue_struct *wq; + struct list_head msg_queue; + struct spi_master *master; + void__iomem *base; + int cs_active; + unsigned int hz; + unsigned char spcr, sper; + unsigned int mode; +}; + +static inline int set_cs(struct loongson_spi *loongson_spi, struct spi_device *spi, int val); + +static void loongson_spi_write_reg(struct loongson_spi *spi, + unsigned char reg, unsigned char data) +{ + writeb(data, spi->base + reg); +} + +static char loongson_spi_read_reg(struct loongson_spi *spi, + unsigned char reg) +{ + return readb(spi->base + reg); +} + +static int loongson_spi_update_state(struct loongson_spi *loongson_spi, struct spi_device *spi, + struct spi_transfer *t) +{ + unsigned int hz; + unsigned int div, div_tmp; + unsigned int bit; + unsigned long clk; + unsigned char val; + const char rdiv[12] = {0, 1, 4, 2, 3, 5, 6, 7, 8, 9, 10, 11}; + + hz = t ? t->speed_hz : spi->max_speed_hz; + + if (!hz) + hz = spi->max_speed_hz; + + if ((hz && loongson_spi->hz != hz) || ((spi->mode ^ loongson_spi->mode) & (SPI_CPOL | SPI_CPHA))) { + clk = 1; + div = DIV_ROUND_UP(clk, hz); + + if (div < 2) + div = 2; + + if (div > 4096) + div = 4096; + + bit = fls(div) - 1; + if ((1<dev, "clk = %ld hz = %d div_tmp = %d bit = %d\n", + clk, hz, div_tmp, bit); + + loongson_spi->hz = hz; + loongson_spi->spcr = div_tmp & 3; + loongson_spi->sper = (div_tmp >> 2) & 3; + + val = loongson_spi_read_reg(loongson_spi, SPCR); + val &= ~0xc; + if (spi->mode & SPI_CPOL) + val |= 8; + if (spi->mode & SPI_CPHA) + val |= 4; + loongson_spi_write_reg(loongson_spi, SPCR, (val & ~3) | loongson_spi->spcr); + val = loongson_spi_read_reg
[PATCH 3/3] MIPS: Loongson: Enable Loongson SPI in loongson3_defconfig
This is now supported, enable for Loongson systems. Signed-off-by: Qing Zhang --- arch/mips/configs/loongson3_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 38a817e..3f88e6c 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -271,6 +271,9 @@ CONFIG_HW_RANDOM=y CONFIG_RAW_DRIVER=m CONFIG_I2C_CHARDEV=y CONFIG_I2C_PIIX4=y +CONFIG_SPI=y +CONFIG_SPI_MASTER=y +CONFIG_SPI_LOONGSON=y CONFIG_GPIO_LOONGSON=y CONFIG_SENSORS_LM75=m CONFIG_SENSORS_LM93=m -- 2.1.0
[PATCH 2/3] MIPS: Loongson64: DTS: Add SPI support to LS3A
The LS3A SPI module is now supported, enable it. Signed-off-by: Qing Zhang --- arch/mips/boot/dts/loongson/loongson64c-package.dtsi | 7 +++ 1 file changed, 7 insertions(+) diff --git a/arch/mips/boot/dts/loongson/loongson64c-package.dtsi b/arch/mips/boot/dts/loongson/loongson64c-package.dtsi index 5bb876a..2025c5a 100644 --- a/arch/mips/boot/dts/loongson/loongson64c-package.dtsi +++ b/arch/mips/boot/dts/loongson/loongson64c-package.dtsi @@ -60,5 +60,12 @@ interrupt-parent = <&liointc>; no-loopback-test; }; + +spi: spi@1fe00220 { +compatible = "loongson,loongson-spi"; +reg=<0 0x1fe00220 0x11>; +#address-cells = <1>; +#size-cells = <0>; + }; }; }; -- 2.1.0
[PATCH] spi: amd: Use devm_platform_ioremap_resource() in amd_spi_probe
Simplify this function implementation by using a known wrapper function. Signed-off-by: Qing Zhang --- drivers/spi/spi-amd.c | 5 + 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/spi/spi-amd.c b/drivers/spi/spi-amd.c index 7f62954..3cf7609 100644 --- a/drivers/spi/spi-amd.c +++ b/drivers/spi/spi-amd.c @@ -250,7 +250,6 @@ static int amd_spi_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct spi_master *master; struct amd_spi *amd_spi; - struct resource *res; int err = 0; /* Allocate storage for spi_master and driver private data */ @@ -261,9 +260,7 @@ static int amd_spi_probe(struct platform_device *pdev) } amd_spi = spi_master_get_devdata(master); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - amd_spi->io_remap_addr = devm_ioremap_resource(&pdev->dev, res); + amd_spi->io_remap_addr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(amd_spi->io_remap_addr)) { err = PTR_ERR(amd_spi->io_remap_addr); dev_err(dev, "error %d ioremap of SPI registers failed\n", err); -- 2.1.0
[PATCH v2 2/2] spi: coldfire-qspi: Use clk_prepare_enable and clk_disable_unprepare
Convert clk_enable() to clk_prepare_enable() and clk_disable() to clk_disable_unprepare() respectively in the spi-coldfire-qspi.c. Signed-off-by: Qing Zhang --- v2: -Modify the commit message -Split into two patches drivers/spi/spi-coldfire-qspi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c index f80e06c..8996115 100644 --- a/drivers/spi/spi-coldfire-qspi.c +++ b/drivers/spi/spi-coldfire-qspi.c @@ -387,7 +387,7 @@ static int mcfqspi_probe(struct platform_device *pdev) status = PTR_ERR(mcfqspi->clk); goto fail0; } - clk_enable(mcfqspi->clk); + clk_prepare_enable(mcfqspi->clk); master->bus_num = pdata->bus_num; master->num_chipselect = pdata->num_chipselect; @@ -425,7 +425,7 @@ static int mcfqspi_probe(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); mcfqspi_cs_teardown(mcfqspi); fail1: - clk_disable(mcfqspi->clk); + clk_disable_unprepare(mcfqspi->clk); fail0: spi_master_put(master); -- 2.1.0
[PATCH v2 1/2] spi: omap-uwire: Use clk_prepare_enable and clk_disable_unprepare
Convert clk_enable() to clk_prepare_enable() and clk_disable() to clk_disable_unprepare() respectively in the spi-omap-uwire.c. Signed-off-by: Qing Zhang --- v2: -Modify the commit message -Split into two patches drivers/spi/spi-omap-uwire.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c index ce8dbdb..71402f7 100644 --- a/drivers/spi/spi-omap-uwire.c +++ b/drivers/spi/spi-omap-uwire.c @@ -443,7 +443,7 @@ static void uwire_cleanup(struct spi_device *spi) static void uwire_off(struct uwire_spi *uwire) { uwire_write_reg(UWIRE_SR3, 0); - clk_disable(uwire->ck); + clk_disable_unprepare(uwire->ck); spi_master_put(uwire->bitbang.master); } @@ -475,7 +475,7 @@ static int uwire_probe(struct platform_device *pdev) spi_master_put(master); return status; } - clk_enable(uwire->ck); + clk_prepare_enable(uwire->ck); if (cpu_is_omap7xx()) uwire_idx_shift = 1; -- 2.1.0
Re: Re: [PATCH] spi: Use clk_prepare_enable and clk_disable_unprepare
> -Original Messages- > From: "Mark Brown" > Sent Time: 2020-07-14 17:44:06 (Tuesday) > To: "Qing Zhang" > Cc: linux-...@vger.kernel.org, linux-kernel@vger.kernel.org, "Xuefeng Li" , "Tiezhu Yang" > Subject: Re: [PATCH] spi: Use clk_prepare_enable and clk_disable_unprepare > > On Tue, Jul 14, 2020 at 05:09:14PM +0800, Qing Zhang wrote: > > Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare > > calls as required by common clock framework. > > > > Signed-off-by: Qing Zhang > > --- > > drivers/spi/spi-coldfire-qspi.c | 4 ++-- > > Are you sure that ColdFire uses the common clock framework? > > > drivers/spi/spi-omap-uwire.c| 4 ++-- > > It makes life easier if you send per-driver patches, that makes it > easier for driver maintainers to review things and means that issues > with a change in one driver won't hold up another. Hi Mark, Thank you for your suggestion. I will split this patch into two patches and then send v2.
[PATCH] spi: Use clk_prepare_enable and clk_disable_unprepare
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare calls as required by common clock framework. Signed-off-by: Qing Zhang --- drivers/spi/spi-coldfire-qspi.c | 4 ++-- drivers/spi/spi-omap-uwire.c| 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c index f80e06c..8996115 100644 --- a/drivers/spi/spi-coldfire-qspi.c +++ b/drivers/spi/spi-coldfire-qspi.c @@ -387,7 +387,7 @@ static int mcfqspi_probe(struct platform_device *pdev) status = PTR_ERR(mcfqspi->clk); goto fail0; } - clk_enable(mcfqspi->clk); + clk_prepare_enable(mcfqspi->clk); master->bus_num = pdata->bus_num; master->num_chipselect = pdata->num_chipselect; @@ -425,7 +425,7 @@ static int mcfqspi_probe(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); mcfqspi_cs_teardown(mcfqspi); fail1: - clk_disable(mcfqspi->clk); + clk_disable_unprepare(mcfqspi->clk); fail0: spi_master_put(master); diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c index ce8dbdb..71402f7 100644 --- a/drivers/spi/spi-omap-uwire.c +++ b/drivers/spi/spi-omap-uwire.c @@ -443,7 +443,7 @@ static void uwire_cleanup(struct spi_device *spi) static void uwire_off(struct uwire_spi *uwire) { uwire_write_reg(UWIRE_SR3, 0); - clk_disable(uwire->ck); + clk_disable_unprepare(uwire->ck); spi_master_put(uwire->bitbang.master); } @@ -475,7 +475,7 @@ static int uwire_probe(struct platform_device *pdev) spi_master_put(master); return status; } - clk_enable(uwire->ck); + clk_prepare_enable(uwire->ck); if (cpu_is_omap7xx()) uwire_idx_shift = 1; -- 2.1.0
[PATCH v2 2/2] spi: tools: Add macro definitions to fix build errors
Add SPI_TX_OCTAL and SPI_RX_OCTAL to fix the following build errors: CC spidev_test.o spidev_test.c: In function ‘transfer’: spidev_test.c:131:13: error: ‘SPI_TX_OCTAL’ undeclared (first use in this function) if (mode & SPI_TX_OCTAL) ^ spidev_test.c:131:13: note: each undeclared identifier is reported only once for each function it appears in spidev_test.c:137:13: error: ‘SPI_RX_OCTAL’ undeclared (first use in this function) if (mode & SPI_RX_OCTAL) ^ spidev_test.c: In function ‘parse_opts’: spidev_test.c:290:12: error: ‘SPI_TX_OCTAL’ undeclared (first use in this function) mode |= SPI_TX_OCTAL; ^ spidev_test.c:308:12: error: ‘SPI_RX_OCTAL’ undeclared (first use in this function) mode |= SPI_RX_OCTAL; ^ LD spidev_test-in.o ld: cannot find spidev_test.o: No such file or directory Additionally, maybe SPI_CS_WORD and SPI_3WIRE_HIZ will be used in the future, so add them too. Fixes: 896fa735084e ("spi: spidev_test: Add support for Octal mode data transfers") Reviewed-by: Geert Uytterhoeven Signed-off-by: Qing Zhang --- v2: -Modify the patch subject -Update the commit message -Add macro definitions of SPI_CS_WORD and SPI_3WIRE_HIZ include/uapi/linux/spi/spidev.h | 4 1 file changed, 4 insertions(+) diff --git a/include/uapi/linux/spi/spidev.h b/include/uapi/linux/spi/spidev.h index ee0f246..9390615 100644 --- a/include/uapi/linux/spi/spidev.h +++ b/include/uapi/linux/spi/spidev.h @@ -48,6 +48,10 @@ #define SPI_TX_QUAD0x200 #define SPI_RX_DUAL0x400 #define SPI_RX_QUAD0x800 +#define SPI_CS_WORD 0x1000 +#define SPI_TX_OCTAL0x2000 +#define SPI_RX_OCTAL0x4000 +#define SPI_3WIRE_HIZ 0x8000 /*---*/ -- 2.1.0
[PATCH v2 1/2] spi: tools: Make default_tx/rx and input_tx static
Fix the following sparse warning: ./spidev_test.c:50:9: warning: symbol 'default_tx' was not declared. Should it be static? ./spidev_test.c:59:9: warning: symbol 'default_rx' was not declared. Should it be static? ./spidev_test.c:60:6: warning: symbol 'input_tx' was not declared. Should it be static? Signed-off-by: Qing Zhang --- tools/spi/spidev_test.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/spi/spidev_test.c b/tools/spi/spidev_test.c index 56ea053f..83844f8 100644 --- a/tools/spi/spidev_test.c +++ b/tools/spi/spidev_test.c @@ -47,7 +47,7 @@ static int transfer_size; static int iterations; static int interval = 5; /* interval in seconds for showing transfer rate */ -uint8_t default_tx[] = { +static uint8_t default_tx[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x40, 0x00, 0x00, 0x00, 0x00, 0x95, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, @@ -56,8 +56,8 @@ uint8_t default_tx[] = { 0xF0, 0x0D, }; -uint8_t default_rx[ARRAY_SIZE(default_tx)] = {0, }; -char *input_tx; +static uint8_t default_rx[ARRAY_SIZE(default_tx)] = {0, }; +static char *input_tx; static void hex_dump(const void *src, size_t length, size_t line_size, char *prefix) -- 2.1.0
[PATCH 2/2] spi: tools: Fix build errors
Fix the following build errors: include/linux/spi 2>&1 || true ln -sf /home/zhangqing/spi.git2/tools/spi/../../include/uapi/linux/spi/spidev.h include/linux/spi/spidev.h make -f /home/zhangqing/spi.git2/tools/build/Makefile.build dir=. obj=spidev_test make[1]: Entering directory '/home/zhangqing/spi.git2/tools/spi' CC spidev_test.o spidev_test.c: In function ‘transfer’: spidev_test.c:131:13: error: ‘SPI_TX_OCTAL’ undeclared (first use in this function) if (mode & SPI_TX_OCTAL) ^ spidev_test.c:131:13: note: each undeclared identifier is reported only once for each function it appears in spidev_test.c:137:13: error: ‘SPI_RX_OCTAL’ undeclared (first use in this function) if (mode & SPI_RX_OCTAL) ^ spidev_test.c: In function ‘parse_opts’: spidev_test.c:290:12: error: ‘SPI_TX_OCTAL’ undeclared (first use in this function) mode |= SPI_TX_OCTAL; ^ spidev_test.c:308:12: error: ‘SPI_RX_OCTAL’ undeclared (first use in this function) mode |= SPI_RX_OCTAL; ^ LD spidev_test-in.o ld: cannot find spidev_test.o: No such file or directory /home/zhangqing/spi.git2/tools/build/Makefile.build:144: recipe for target 'spidev_test-in.o' failed make[1]: *** [spidev_test-in.o] Error 1 make[1]: Leaving directory '/home/zhangqing/spi.git2/tools/spi' Makefile:39: recipe for target 'spidev_test-in.o' failed make: *** [spidev_test-in.o] Error 2 Signed-off-by: Qing Zhang --- include/uapi/linux/spi/spidev.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/uapi/linux/spi/spidev.h b/include/uapi/linux/spi/spidev.h index ee0f246..8b04c62 100644 --- a/include/uapi/linux/spi/spidev.h +++ b/include/uapi/linux/spi/spidev.h @@ -48,6 +48,8 @@ #define SPI_TX_QUAD0x200 #define SPI_RX_DUAL0x400 #define SPI_RX_QUAD0x800 +#defineSPI_TX_OCTAL0x2000 +#defineSPI_RX_OCTAL0x4000 /*---*/ -- 2.1.0
[PATCH 1/2] spi: tools: Make default_tx/rx and input_tx static
Fix the following sparse warning: ./spidev_test.c:50:9: warning: symbol 'default_tx' was not declared. Should it be static? ./spidev_test.c:59:9: warning: symbol 'default_rx' was not declared. Should it be static? ./spidev_test.c:60:6: warning: symbol 'input_tx' was not declared. Should it be static? Signed-off-by: Qing Zhang --- tools/spi/spidev_test.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/spi/spidev_test.c b/tools/spi/spidev_test.c index 56ea053f..83844f8 100644 --- a/tools/spi/spidev_test.c +++ b/tools/spi/spidev_test.c @@ -47,7 +47,7 @@ static int transfer_size; static int iterations; static int interval = 5; /* interval in seconds for showing transfer rate */ -uint8_t default_tx[] = { +static uint8_t default_tx[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x40, 0x00, 0x00, 0x00, 0x00, 0x95, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, @@ -56,8 +56,8 @@ uint8_t default_tx[] = { 0xF0, 0x0D, }; -uint8_t default_rx[ARRAY_SIZE(default_tx)] = {0, }; -char *input_tx; +static uint8_t default_rx[ARRAY_SIZE(default_tx)] = {0, }; +static char *input_tx; static void hex_dump(const void *src, size_t length, size_t line_size, char *prefix) -- 2.1.0