Add J784S4 initialization files for initial SPL boot.
Signed-off-by: Hari Nagalla <hnaga...@ti.com>
[ add firewall configurations and change the R5 MCU scratchpad ]
Signed-off-by: Manorit Chawdhry <m-chawd...@ti.com>
Signed-off-by: Dasnavis Sabiya <sabiy...@ti.com>
Signed-off-by: Apurva Nandan <a-nan...@ti.com>
---
arch/arm/mach-k3/Kconfig | 16 +-
arch/arm/mach-k3/Makefile | 2 +
arch/arm/mach-k3/arm64-mmu.c | 52 +++
arch/arm/mach-k3/include/mach/hardware.h | 4 +
.../mach-k3/include/mach/j784s4_hardware.h | 60 ++++
arch/arm/mach-k3/include/mach/j784s4_spl.h | 47 +++
arch/arm/mach-k3/include/mach/spl.h | 4 +
arch/arm/mach-k3/j784s4_fdt.c | 15 +
arch/arm/mach-k3/j784s4_init.c | 335 ++++++++++++++++++
arch/arm/mach-k3/r5/Makefile | 1 +
10 files changed, 529 insertions(+), 7 deletions(-)
create mode 100644 arch/arm/mach-k3/include/mach/j784s4_hardware.h
create mode 100644 arch/arm/mach-k3/include/mach/j784s4_spl.h
create mode 100644 arch/arm/mach-k3/j784s4_fdt.c
create mode 100644 arch/arm/mach-k3/j784s4_init.c
diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig
index 03898424c9..150d0bfa14 100644
--- a/arch/arm/mach-k3/Kconfig
+++ b/arch/arm/mach-k3/Kconfig
@@ -22,6 +22,9 @@ config SOC_K3_AM625
config SOC_K3_AM62A7
bool "TI's K3 based AM62A7 SoC Family Support"
+config SOC_K3_J784S4
+ bool "TI's K3 based J784S4 SoC Family Support"
+
endchoice
if SOC_K3_J721E
@@ -35,7 +38,7 @@ config SYS_SOC
config SYS_K3_NON_SECURE_MSRAM_SIZE
hex
default 0x80000 if SOC_K3_AM654
- default 0x100000 if SOC_K3_J721E || SOC_K3_J721S2
+ default 0x100000 if SOC_K3_J721E || SOC_K3_J721S2 || SOC_K3_J784S4
default 0x1c0000 if SOC_K3_AM642
default 0x3c000 if SOC_K3_AM625 || SOC_K3_AM62A7
help
@@ -47,7 +50,7 @@ config SYS_K3_NON_SECURE_MSRAM_SIZE
config SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE
hex
default 0x58000 if SOC_K3_AM654
- default 0xc0000 if SOC_K3_J721E || SOC_K3_J721S2
+ default 0xc0000 if SOC_K3_J721E || SOC_K3_J721S2 || SOC_K3_J784S4
default 0x180000 if SOC_K3_AM642
default 0x38000 if SOC_K3_AM625 || SOC_K3_AM62A7
help
@@ -57,15 +60,14 @@ config SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE
config SYS_K3_MCU_SCRATCHPAD_BASE
hex
default 0x40280000 if SOC_K3_AM654
- default 0x41cff9fc if SOC_K3_J721S2
- default 0x41cff9fc if SOC_K3_J721E
+ default 0x41cff9fc if SOC_K3_J721E || SOC_K3_J721S2 || SOC_K3_J784S4
help
Describes the base address of MCU Scratchpad RAM.
config SYS_K3_MCU_SCRATCHPAD_SIZE
hex
default 0x200 if SOC_K3_AM654
- default 0x200 if SOC_K3_J721E || SOC_K3_J721S2
+ default 0x200 if SOC_K3_J721E || SOC_K3_J721S2 || SOC_K3_J784S4
help
Describes the size of MCU Scratchpad RAM.
@@ -73,7 +75,7 @@ config SYS_K3_BOOT_PARAM_TABLE_INDEX
hex
default 0x41c7fbfc if SOC_K3_AM654
default 0x41cffbfc if SOC_K3_J721E
- default 0x41cfdbfc if SOC_K3_J721S2
+ default 0x41cfdbfc if SOC_K3_J721S2 || SOC_K3_J784S4
default 0x701bebfc if SOC_K3_AM642
default 0x43c3f290 if SOC_K3_AM625
default 0x43c3f290 if SOC_K3_AM62A7 && CPU_V7R
@@ -130,7 +132,7 @@ config K3_ATF_LOAD_ADDR
config K3_DM_FW
bool "Separate DM firmware image"
- depends on CPU_V7R && (SOC_K3_J721E || SOC_K3_J721S2 || SOC_K3_AM625 || SOC_K3_AM62A7)
&& !CLK_TI_SCI && !TI_SCI_POWER_DOMAIN
+ depends on CPU_V7R && (SOC_K3_J721E || SOC_K3_J721S2 || SOC_K3_AM625 || SOC_K3_AM62A7
|| SOC_K3_J784S4) && !CLK_TI_SCI && !TI_SCI_POWER_DOMAIN
default y
help
Enabling this will indicate that the system has separate DM
diff --git a/arch/arm/mach-k3/Makefile b/arch/arm/mach-k3/Makefile
index 4216137646..945698e6e8 100644
--- a/arch/arm/mach-k3/Makefile
+++ b/arch/arm/mach-k3/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_SOC_K3_AM654) += am654_fdt.o
obj-$(CONFIG_SOC_K3_J721E) += j721e_fdt.o
obj-$(CONFIG_SOC_K3_J721S2) += j721s2_fdt.o
obj-$(CONFIG_SOC_K3_AM625) += am625_fdt.o
+obj-$(CONFIG_SOC_K3_J784S4) += j784s4_fdt.o
endif
ifeq ($(CONFIG_SPL_BUILD),y)
obj-$(CONFIG_SOC_K3_AM654) += am654_init.o
@@ -20,5 +21,6 @@ obj-$(CONFIG_SOC_K3_J721S2) += j721s2_init.o
obj-$(CONFIG_SOC_K3_AM642) += am642_init.o
obj-$(CONFIG_SOC_K3_AM625) += am625_init.o
obj-$(CONFIG_SOC_K3_AM62A7) += am62a7_init.o
+obj-$(CONFIG_SOC_K3_J784S4) += j784s4_init.o
endif
obj-y += common.o security.o
diff --git a/arch/arm/mach-k3/arm64-mmu.c b/arch/arm/mach-k3/arm64-mmu.c
index e8db5332ae..f8b8a9b94f 100644
--- a/arch/arm/mach-k3/arm64-mmu.c
+++ b/arch/arm/mach-k3/arm64-mmu.c
@@ -317,3 +317,55 @@ struct mm_region am64_mem_map[NR_MMU_REGIONS] = {
struct mm_region *mem_map = am64_mem_map;
#endif /* CONFIG_SOC_K3_AM642 */
+
+#if defined(CONFIG_SOC_K3_J784S4)
+#define NR_MMU_REGIONS (CONFIG_NR_DRAM_BANKS + 5)
+
+struct mm_region j784s4_mem_map[NR_MMU_REGIONS] = {
+ {
+ .virt = 0x0UL,
+ .phys = 0x0UL,
+ .size = 0x80000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ .virt = 0x80000000UL,
+ .phys = 0x80000000UL,
+ .size = 0x20000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ .virt = 0xa0000000UL,
+ .phys = 0xa0000000UL,
+ .size = 0x21000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) |
+ PTE_BLOCK_NON_SHARE
+ }, {
+ .virt = 0xc1000000UL,
+ .phys = 0xc1000000UL,
+ .size = 0x3f000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ .virt = 0x880000000UL,
+ .phys = 0x880000000UL,
+ .size = 0x80000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ .virt = 0x500000000UL,
+ .phys = 0x500000000UL,
+ .size = 0x400000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /* List terminator */
+ 0,
+ }
+};
+
+struct mm_region *mem_map = j784s4_mem_map;
+
+#endif /* CONFIG_SOC_K3_J784S4 */
diff --git a/arch/arm/mach-k3/include/mach/hardware.h
b/arch/arm/mach-k3/include/mach/hardware.h
index a1a9dfbde6..0cf1e12aaa 100644
--- a/arch/arm/mach-k3/include/mach/hardware.h
+++ b/arch/arm/mach-k3/include/mach/hardware.h
@@ -33,6 +33,10 @@
#include "am62a_qos.h"
#endif
+#ifdef CONFIG_SOC_K3_J784S4
+#include "j784s4_hardware.h"
+#endif
+
/* Assuming these addresses and definitions stay common across K3 devices */
#define CTRLMMR_WKUP_JTAG_ID (WKUP_CTRL_MMR0_BASE + 0x14)
#define JTAG_ID_VARIANT_SHIFT 28
diff --git a/arch/arm/mach-k3/include/mach/j784s4_hardware.h
b/arch/arm/mach-k3/include/mach/j784s4_hardware.h
new file mode 100644
index 0000000000..a34ca6db23
--- /dev/null
+++ b/arch/arm/mach-k3/include/mach/j784s4_hardware.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * K3: J784S4 SoC definitions, structures etc.
+ *
+ * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
+ */
+#ifndef __ASM_ARCH_J784S4_HARDWARE_H
+#define __ASM_ARCH_J784S4_HARDWARE_H
+
+#include <config.h>
+#ifndef __ASSEMBLY__
+#include <linux/bitops.h>
+#endif
+
+#define WKUP_CTRL_MMR0_BASE 0x43000000
+#define MCU_CTRL_MMR0_BASE 0x40f00000
+#define CTRL_MMR0_BASE 0x00100000
+
+#define CTRLMMR_MAIN_DEVSTAT (CTRL_MMR0_BASE + 0x30)
+#define MAIN_DEVSTAT_BOOT_MODE_B_MASK BIT(0)
+#define MAIN_DEVSTAT_BOOT_MODE_B_SHIFT 0
+#define MAIN_DEVSTAT_BKUP_BOOTMODE_MASK GENMASK(3, 1)
+#define MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT 1
+#define MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK BIT(6)
+#define MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT 6
+#define MAIN_DEVSTAT_BKUP_MMC_PORT_MASK BIT(7)
+#define MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT 7
+
+#define CTRLMMR_WKUP_DEVSTAT (WKUP_CTRL_MMR0_BASE +
0x30)
+#define WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK GENMASK(5, 3)
+#define WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT 3
+#define WKUP_DEVSTAT_MCU_OMLY_MASK BIT(6)
+#define WKUP_DEVSTAT_MCU_ONLY_SHIFT 6
+
+/* ROM HANDOFF Structure location */
+#define ROM_EXTENDED_BOOT_DATA_INFO 0x41cfdb00
+
+/* MCU SCRATCHPAD usage */
+#define TI_SRAM_SCRATCH_BOARD_EEPROM_START
CONFIG_SYS_K3_MCU_SCRATCHPAD_BASE
+
+#if defined(CONFIG_SYS_K3_SPL_ATF) && !defined(__ASSEMBLY__)
+
+#define J784S4_DEV_MCU_RTI0 367
+#define J784S4_DEV_MCU_RTI1 368
+#define J784S4_DEV_MCU_ARMSS0_CPU0 346
+#define J784S4_DEV_MCU_ARMSS0_CPU1 347
+
+static const u32 put_device_ids[] = {
+ J784S4_DEV_MCU_RTI0,
+ J784S4_DEV_MCU_RTI1,
+};
+
+static const u32 put_core_ids[] = {
+ J784S4_DEV_MCU_ARMSS0_CPU1,
+ J784S4_DEV_MCU_ARMSS0_CPU0, /* Handle CPU0 after CPU1 */
+};
+
+#endif
+
+#endif /* __ASM_ARCH_J784S4_HARDWARE_H */
diff --git a/arch/arm/mach-k3/include/mach/j784s4_spl.h
b/arch/arm/mach-k3/include/mach/j784s4_spl.h
new file mode 100644
index 0000000000..08e6ff5c0c
--- /dev/null
+++ b/arch/arm/mach-k3/include/mach/j784s4_spl.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+#ifndef _ASM_ARCH_J784S4_SPL_H_
+#define _ASM_ARCH_J784S4_SPL_H_
+
+/* With BootMode B = 0 */
+#include <linux/bitops.h>
+
+#define BOOT_DEVICE_HYPERFLASH 0x00
+#define BOOT_DEVICE_OSPI 0x01
+#define BOOT_DEVICE_QSPI 0x02
+#define BOOT_DEVICE_SPI 0x03
+#define BOOT_DEVICE_ETHERNET 0x04
+#define BOOT_DEVICE_I2C 0x06
+#define BOOT_DEVICE_UART 0x07
+#define BOOT_DEVICE_NOR BOOT_DEVICE_HYPERFLASH
+
+/* With BootMode B = 1 */
+#define BOOT_DEVICE_MMC2 0x10
+#define BOOT_DEVICE_MMC1 0x11
+#define BOOT_DEVICE_DFU 0x12
+#define BOOT_DEVICE_UFS 0x13
+#define BOOT_DEVIE_GPMC 0x14
+#define BOOT_DEVICE_PCIE 0x15
+#define BOOT_DEVICE_XSPI 0x16
+#define BOOT_DEVICE_RAM 0x17
+#define BOOT_DEVICE_MMC2_2 0xFF /* Invalid value */
+
+/* Backup boot modes with MCU Only = 0 */
+#define BACKUP_BOOT_DEVICE_RAM 0x0
+#define BACKUP_BOOT_DEVICE_USB 0x1
+#define BACKUP_BOOT_DEVICE_UART 0x3
+#define BACKUP_BOOT_DEVICE_ETHERNET 0x4
+#define BACKUP_BOOT_DEVICE_MMC2 0x5
+#define BACKUP_BOOT_DEVICE_SPI 0x6
+#define BACKUP_BOOT_DEVICE_I2C 0x7
+
+#define BOOT_MODE_B_SHIFT 4
+#define BOOT_MODE_B_MASK BIT(4)
+
+#define K3_PRIMARY_BOOTMODE 0x0
+#define K3_BACKUP_BOOTMODE 0x1
+
+#endif
diff --git a/arch/arm/mach-k3/include/mach/spl.h
b/arch/arm/mach-k3/include/mach/spl.h
index 3ddc7eb6b6..6f01ab58e2 100644
--- a/arch/arm/mach-k3/include/mach/spl.h
+++ b/arch/arm/mach-k3/include/mach/spl.h
@@ -30,4 +30,8 @@
#include "am62a_spl.h"
#endif
+#ifdef CONFIG_SOC_K3_J784S4
+#include "j784s4_spl.h"
+#endif
+
#endif /* _ASM_ARCH_SPL_H_ */
diff --git a/arch/arm/mach-k3/j784s4_fdt.c b/arch/arm/mach-k3/j784s4_fdt.c
new file mode 100644
index 0000000000..125f55c9a6
--- /dev/null
+++ b/arch/arm/mach-k3/j784s4_fdt.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * J784S4: SoC specific initialization
+ *
+ * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
+ * Apurva Nandan <a-nan...@ti.com>
+ */
+
+#include "common_fdt.h"
+#include <fdt_support.h>
+
+int ft_system_setup(void *blob, struct bd_info *bd)
+{
+ return fdt_fixup_msmc_ram_k3(blob);
+}
diff --git a/arch/arm/mach-k3/j784s4_init.c b/arch/arm/mach-k3/j784s4_init.c
new file mode 100644
index 0000000000..46e482b498
--- /dev/null
+++ b/arch/arm/mach-k3/j784s4_init.c
@@ -0,0 +1,335 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * J784S4: SoC specific initialization
+ *
+ * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
+ * Hari Nagalla <hnaga...@ti.com>
+ */
+
+#include <init.h>
+#include <spl.h>
+#include <asm/io.h>
+#include <asm/armv7_mpu.h>
+#include <asm/arch/hardware.h>
+#include "sysfw-loader.h"
+#include "common.h"
+#include <linux/soc/ti/ti_sci_protocol.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
+#include <dm/pinctrl.h>
+#include <mmc.h>
+#include <remoteproc.h>
+
+struct fwl_data infra_cbass0_fwls[] = {
+ { "PSC0", 5, 1 },
+ { "PLL_CTRL0", 6, 1 },
+ { "PLL_MMR0", 8, 26 },
+ { "CTRL_MMR0", 9, 16 },
+ { "GPIO0", 16, 1 },
+}, wkup_cbass0_fwls[] = {
+ { "WKUP_PSC0", 129, 1 },
+ { "WKUP_PLL_CTRL0", 130, 1 },
+ { "WKUP_CTRL_MMR0", 131, 16 },
+ { "WKUP_GPIO0", 132, 1 },
+ { "WKUP_I2C0", 144, 1 },
+ { "WKUP_USART0", 160, 1 },
+}, mcu_cbass0_fwls[] = {
+ { "MCU_R5FSS0_CORE0", 1024, 4 },
+ { "MCU_R5FSS0_CORE0_CFG", 1025, 3 },
+ { "MCU_R5FSS0_CORE1", 1028, 4 },
+ { "MCU_R5FSS0_CORE1_CFG", 1029, 1 },
+ { "MCU_FSS0_CFG", 1032, 12 },
+ { "MCU_FSS0_S1", 1033, 8 },
+ { "MCU_FSS0_S0", 1036, 8 },
+ { "MCU_PSROM49152X32", 1048, 1 },
+ { "MCU_MSRAM128KX64", 1050, 8 },
+ { "MCU_MSRAM128KX64_CFG", 1051, 1 },
+ { "MCU_TIMER0", 1056, 1 },
+ { "MCU_TIMER9", 1065, 1 },
+ { "MCU_USART0", 1120, 1 },
+ { "MCU_I2C0", 1152, 1 },
+ { "MCU_CTRL_MMR0", 1200, 8 },
+ { "MCU_PLL_MMR0", 1201, 3 },
+ { "MCU_CPSW0", 1220, 2 },
+}, cbass_rc_cfg0_fwls[] = {
+ { "EMMCSD4SS0_CFG", 2400, 4 },
+}, cbass_hc2_fwls[] = {
+ { "PCIE0", 2547, 24 },
+}, cbass_hc_cfg0_fwls[] = {
+ { "PCIE0_CFG", 2577, 7 },
+ { "EMMC8SS0_CFG", 2579, 4 },
+ { "USB3SS0_CORE", 2580, 4 },
+ { "USB3SS1_CORE", 2581, 1 },
+}, navss_cbass0_fwls[] = {
+ { "NACSS_VIRT0", 6253, 1 },
+};
+
+static void ctrl_mmr_unlock(void)
+{
+ /* Unlock all WKUP_CTRL_MMR0 module registers */
+ mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
+ mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
+ mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
+ mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
+ mmr_unlock(WKUP_CTRL_MMR0_BASE, 4);
+ mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
+ mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);
+
+ /* Unlock all MCU_CTRL_MMR0 module registers */
+ mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
+ mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
+ mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
+ mmr_unlock(MCU_CTRL_MMR0_BASE, 3);
+ mmr_unlock(MCU_CTRL_MMR0_BASE, 4);
+
+ /* Unlock all CTRL_MMR0 module registers */
+ mmr_unlock(CTRL_MMR0_BASE, 0);
+ mmr_unlock(CTRL_MMR0_BASE, 1);
+ mmr_unlock(CTRL_MMR0_BASE, 2);
+ mmr_unlock(CTRL_MMR0_BASE, 3);
+ mmr_unlock(CTRL_MMR0_BASE, 5);
+ mmr_unlock(CTRL_MMR0_BASE, 7);
+}
+
+void k3_mmc_stop_clock(void)
+{
+ if (IS_ENABLED(CONFIG_K3_LOAD_SYSFW)) {
+ if (spl_boot_device() == BOOT_DEVICE_MMC1) {
+ struct mmc *mmc = find_mmc_device(0);
+
+ if (!mmc)
+ return;
+
+ mmc->saved_clock = mmc->clock;
+ mmc_set_clock(mmc, 0, true);
+ }
+ }
+}
+
+void k3_mmc_restart_clock(void)
+{
+ if (IS_ENABLED(CONFIG_K3_LOAD_SYSFW)) {
+ if (spl_boot_device() == BOOT_DEVICE_MMC1) {
+ struct mmc *mmc = find_mmc_device(0);
+
+ if (!mmc)
+ return;
+
+ mmc_set_clock(mmc, mmc->saved_clock, false);
+ }
+ }
+}
+
+/*
+ * This uninitialized global variable would normal end up in the .bss section,
+ * but the .bss is cleared between writing and reading this variable, so move
+ * it to the .data section.
+ */
+u32 bootindex __section(".data");
+static struct rom_extended_boot_data bootdata __section(".data");
+
+static void store_boot_info_from_rom(void)
+{
+ bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
+ memcpy(&bootdata, (uintptr_t *)ROM_EXTENDED_BOOT_DATA_INFO,
+ sizeof(struct rom_extended_boot_data));
+}
+
+void board_init_f(ulong dummy)
+{
+ struct udevice *dev;
+ int ret, ctr = 1;
+
+ /*
+ * Cannot delay this further as there is a chance that
+ * K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
+ */
+ store_boot_info_from_rom();
+
+ /* Make all control module registers accessible */
+ ctrl_mmr_unlock();
+
+ if (IS_ENABLED(CONFIG_CPU_V7R)) {
+ disable_linefill_optimization();
+ setup_k3_mpu_regions();
+ }
+
+ /* Init DM early */
+ ret = spl_early_init();
+
+ /* Prepare console output */
+ preloader_console_init();
+
+ if (IS_ENABLED(CONFIG_K3_LOAD_SYSFW)) {
+ /*
+ * Process pinctrl for the serial0 a.k.a. WKUP_UART0 module and
continue
+ * regardless of the result of pinctrl. Do this without probing
the
+ * device, but instead by searching the device that would
request the
+ * given sequence number if probed. The UART will be used by
the system
+ * firmware (SYSFW) image for various purposes and SYSFW
depends on us
+ * to initialize its pin settings.
+ */
+ ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, &dev);
+ if (!ret)
+ pinctrl_select_state(dev, "default");
+
+ /*
+ * Load, start up, and configure system controller firmware.
Provide
+ * the U-Boot console init function to the SYSFW post-PM
configuration
+ * callback hook, effectively switching on (or over) the console
+ * output.
+ */
+ k3_sysfw_loader(is_rom_loaded_sysfw(&bootdata),
+ k3_mmc_stop_clock, k3_mmc_restart_clock);
+
