From: Aurelien Jacquiot <[email protected]> RapidIO is a high-performance packet-switched interconnect technology (www.rapidio.org) that can be used for messaging or memory transfers like Ethernet or PCIe.
This commit adds the RapidIO boot functionality for slave mode (i.e. U-Boot does not fetch the images, images are pushed by a peer device/board). A new 'rio' command group allows to initialize and perform basic RapidIO operations. This feature has been firstly designed for TI KeyStone architecture but can used by any device that has hardware RapidIO support and corresponding driver. For more information, read the doc/README.rapidio documentation. Signed-off-by: Aurelien Jacquiot <[email protected]> --- common/Kconfig | 7 +- common/Makefile | 1 + common/cmd_rio.c | 260 +++++++++++++++++++++++++++++++++++++ include/rio.h | 382 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 649 insertions(+), 1 deletions(-) create mode 100644 common/cmd_rio.c create mode 100644 include/rio.h diff --git a/common/Kconfig b/common/Kconfig index 0388a6c..2a3dbd2 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -355,8 +355,13 @@ config CMD_REMOTEPROC depends on REMOTEPROC help Support for Remote Processor control -endmenu +config CMD_RIO + bool "rapidio" + help + RapidIO support. + +endmenu menu "Shell scripting commands" diff --git a/common/Makefile b/common/Makefile index d986cde..7380958 100644 --- a/common/Makefile +++ b/common/Makefile @@ -195,6 +195,7 @@ obj-$(CONFIG_YAFFS2) += cmd_yaffs2.o obj-$(CONFIG_CMD_SPL) += cmd_spl.o obj-$(CONFIG_CMD_ZIP) += cmd_zip.o obj-$(CONFIG_CMD_ZFS) += cmd_zfs.o +obj-$(CONFIG_CMD_RIO) += cmd_rio.o # others obj-$(CONFIG_BOOTSTAGE) += bootstage.o diff --git a/common/cmd_rio.c b/common/cmd_rio.c new file mode 100644 index 0000000..72db7d1 --- /dev/null +++ b/common/cmd_rio.c @@ -0,0 +1,260 @@ +/* + * (C) Copyright 2015 + * Texas Instruments Incorporated, <www.ti.com> + * Authors: Aurelien Jacquiot <[email protected]> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * RapidIO support + */ +#include <common.h> +#include <command.h> +#include <asm/io.h> +#include <watchdog.h> +#include <rio.h> + +static void *rio_handle; + +static int rio_cmd_init(int argc, char * const argv[]) +{ + int riohdid = -1; /* none */ + int riosize = 0; /* small Ids */ + u32 rioports = 0x1; /* port 0 */ + int riopmode = 0; /* 4 ports in 1x */ + int riobaudrate = 1; /* 2.5Gbps */ + char *s; + + if (rio_handle) { + printf("RapidIO device already initialized!\n"); + return CMD_RET_FAILURE; + } + + /* hostid */ + if (argc >= 2) { + riohdid = simple_strtol(argv[2], NULL, 10); + } else { + s = getenv("riohdid"); + if (s != NULL) + riohdid = simple_strtol(s, NULL, 10); + goto call_init; + } + + /* dev-id size */ + if (argc >= 3) { + riosize = simple_strtol(argv[3], NULL, 10); + } else { + s = getenv("riosize"); + if (s != NULL) + riosize = simple_strtol(s, NULL, 10); + goto call_init; + } + + /* port bitmask */ + if (argc >= 4) { + rioports = simple_strtoul(argv[4], NULL, 16); + } else { + s = getenv("rioports"); + if (s != NULL) + rioports = simple_strtoul(s, NULL, 16); + goto call_init; + } + + /* port path mode */ + if (argc >= 5) { + riopmode = simple_strtol(argv[5], NULL, 10); + } else { + s = getenv("riopathmode"); + if (s != NULL) + riopmode = simple_strtol(s, NULL, 10); + goto call_init; + } + + /* baudrate */ + if (argc >= 6) { + riobaudrate = simple_strtol(argv[6], NULL, 10); + } else { + s = getenv("riobaudrate"); + if (s != NULL) + riobaudrate = simple_strtol(s, NULL, 10); + } + +call_init: + printf("rioboot: waiting for link up ...\n"); + + /* Initialize RIO */ + rio_handle = rio_init(riohdid, riosize, rioports, riopmode, + riobaudrate); + if (!rio_handle) + return CMD_RET_FAILURE; + + return CMD_RET_SUCCESS; +} + +static int rio_cmd(int argc, char * const argv[]) +{ + char *cmd; + + if (argc == 1) + return CMD_RET_USAGE; + + if (!rio_handle) { + printf("RapidIO device not initialized!\n"); + return CMD_RET_FAILURE; + } + + cmd = argv[1]; + + if ((strncmp(cmd, "r", 1) == 0) || (strncmp(cmd, "w", 1) == 0)) { + int portid; + u16 destid; + u8 hopcount; + u32 offset; + + if (argc < 5) + return CMD_RET_USAGE; + + portid = simple_strtol(argv[2], NULL, 10); + destid = simple_strtol(argv[3], NULL, 10) & 0xffff; + hopcount = simple_strtoul(argv[4], NULL, 10) & 0xff; + offset = simple_strtoul(argv[5], NULL, 16); + + if (strncmp(cmd, "r", 1) == 0) { + int res; + u32 val; + + /* Do maintenance read */ + res = rio_config_read(portid, + destid, + hopcount, + offset, + sizeof(val), + &val); + + if (res) { + printf("cannot perform maintenance read\n"); + return CMD_RET_FAILURE; + } + + /* Display value */ + print_buffer(offset, (const void *)&val, sizeof(val), + 1, 0); + } + + if (strncmp(cmd, "w", 1) == 0) { + int res; + u32 val; + + if (argc < 6) + return CMD_RET_USAGE; + + val = simple_strtoul(argv[6], NULL, 16); + + /* Do maintenance write */ + res = rio_config_write(portid, + destid, + hopcount, + offset, + sizeof(val), + val); + + if (res) { + printf("cannot perform maintenance write\n"); + return CMD_RET_FAILURE; + } + } + + return CMD_RET_SUCCESS; + } + + if ((strncmp(cmd, "lr", 2) == 0) || (strncmp(cmd, "lw", 2) == 0)) { + u32 offset; + + if (argc < 2) + return CMD_RET_USAGE; + + offset = simple_strtoul(argv[2], NULL, 16); + + if (strncmp(cmd, "lr", 2) == 0) { + int res; + u32 val; + + /* Do local read */ + res = rio_local_config_read(offset, + sizeof(val), + &val); + + if (res) { + printf("cannot perform local read\n"); + return CMD_RET_FAILURE; + } + + /* Display value */ + print_buffer(offset, (const void *)&val, sizeof(val), + 1, 0); + } + + if (strncmp(cmd, "lw", 2) == 0) { + int res; + u32 val; + + if (argc < 3) + return CMD_RET_USAGE; + + val = simple_strtoul(argv[3], NULL, 16); + + /* Do local write */ + res = rio_local_config_write(offset, + sizeof(val), + val); + + if (res) { + printf("cannot perform local write\n"); + return CMD_RET_FAILURE; + } + } + + return CMD_RET_SUCCESS; + } + + return CMD_RET_USAGE; +} + +static int do_rio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + char *cmd = argv[1]; + int ret; + + if (strncmp(cmd, "init", 4) == 0) + return rio_cmd_init(argc, argv); + + if (strncmp(cmd, "shutdown", 8) == 0) { + if (rio_handle) { + rio_shutdown(rio_handle); + rio_handle = NULL; + return CMD_RET_SUCCESS; + } else { + printf("RapidIO device not initialized!\n"); + return CMD_RET_FAILURE; + } + } + + ret = rio_cmd(argc, argv); + + if (ret == CMD_RET_USAGE) + return cmd_usage(cmdtp); + + return ret; +} + +U_BOOT_CMD(rio, CONFIG_SYS_MAXARGS, 1, do_rio, + "RapidIO sub-system", + "init [dev_id] [id_size] [port_mask] [pathmode] [baudrate]\n" + " - initialized RapidIO device\n" + "rio shutdown - shutdown RapidIO device\n" + "rio r port dev_id hopcount offset - perform config read\n" + "rio w port dev_id hopcount offset value - perform config write\n" + "rio lr offset - perform local config read\n" + "rio lw offset value - perform local config write\n" +); diff --git a/include/rio.h b/include/rio.h new file mode 100644 index 0000000..6b9341d --- /dev/null +++ b/include/rio.h @@ -0,0 +1,382 @@ +/* + * (C) Copyright 2015 + * Texas Instruments Incorporated, <www.ti.com> + * Authors: Aurelien Jacquiot <[email protected]> + * + * Part of this file is borrowed from Linux rio_regs.h. + * (C) Copyright 2005 MontaVista Software, Inc. + * Matt Porter <[email protected]> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _RIO_H_ +#define _RIO_H_ + +/* + * In RapidIO, each device has a 16MB configuration space that is + * accessed via maintenance transactions. Portions of configuration + * space are standardized and/or reserved. + */ +#define RIO_DEV_ID_CAR 0x00 +#define RIO_DEV_INFO_CAR 0x04 +#define RIO_ASM_ID_CAR 0x08 +#define RIO_ASM_ID_MASK 0xffff0000 +#define RIO_ASM_VEN_ID_MASK 0x0000ffff + +#define RIO_ASM_INFO_CAR 0x0c +#define RIO_ASM_REV_MASK 0xffff0000 +#define RIO_EXT_FTR_PTR_MASK 0x0000ffff + +#define RIO_PEF_CAR 0x10 +#define RIO_PEF_BRIDGE 0x80000000 +#define RIO_PEF_MEMORY 0x40000000 +#define RIO_PEF_PROCESSOR 0x20000000 +#define RIO_PEF_SWITCH 0x10000000 +#define RIO_PEF_INB_MBOX 0x00f00000 +#define RIO_PEF_INB_MBOX0 0x00800000 +#define RIO_PEF_INB_MBOX1 0x00400000 +#define RIO_PEF_INB_MBOX2 0x00200000 +#define RIO_PEF_INB_MBOX3 0x00100000 +#define RIO_PEF_INB_DOORBELL 0x00080000 +#define RIO_PEF_EXT_RT 0x00000200 +#define RIO_PEF_STD_RT 0x00000100 +#define RIO_PEF_CTLS 0x00000010 +#define RIO_PEF_FLOW_CONTROL 0x00000080 +#define RIO_PEF_EXT_FEATURES 0x00000008 +#define RIO_PEF_ADDR_66 0x00000004 +#define RIO_PEF_ADDR_50 0x00000002 +#define RIO_PEF_ADDR_34 0x00000001 + +#define RIO_SWP_INFO_CAR 0x14 +#define RIO_SWP_INFO_PORT_TOTAL_MASK 0x0000ff00 +#define RIO_SWP_INFO_PORT_NUM_MASK 0x000000ff + +#define RIO_SRC_OPS_CAR 0x18 +#define RIO_SRC_OPS_READ 0x00008000 +#define RIO_SRC_OPS_WRITE 0x00004000 +#define RIO_SRC_OPS_STREAM_WRITE 0x00002000 +#define RIO_SRC_OPS_WRITE_RESPONSE 0x00001000 +#define RIO_SRC_OPS_DATA_MSG 0x00000800 +#define RIO_SRC_OPS_DOORBELL 0x00000400 +#define RIO_SRC_OPS_ATOMIC_TST_SWP 0x00000100 +#define RIO_SRC_OPS_ATOMIC_INC 0x00000080 +#define RIO_SRC_OPS_ATOMIC_DEC 0x00000040 +#define RIO_SRC_OPS_ATOMIC_SET 0x00000020 +#define RIO_SRC_OPS_ATOMIC_CLR 0x00000010 +#define RIO_SRC_OPS_PORT_WRITE 0x00000004 + +#define RIO_DST_OPS_CAR 0x1c +#define RIO_DST_OPS_READ 0x00008000 +#define RIO_DST_OPS_WRITE 0x00004000 +#define RIO_DST_OPS_STREAM_WRITE 0x00002000 +#define RIO_DST_OPS_WRITE_RESPONSE 0x00001000 +#define RIO_DST_OPS_DATA_MSG 0x00000800 +#define RIO_DST_OPS_DOORBELL 0x00000400 +#define RIO_DST_OPS_ATOMIC_TST_SWP 0x00000100 +#define RIO_DST_OPS_ATOMIC_INC 0x00000080 +#define RIO_DST_OPS_ATOMIC_DEC 0x00000040 +#define RIO_DST_OPS_ATOMIC_SET 0x00000020 +#define RIO_DST_OPS_ATOMIC_CLR 0x00000010 +#define RIO_DST_OPS_PORT_WRITE 0x00000004 + +#define RIO_OPS_READ 0x00008000 +#define RIO_OPS_WRITE 0x00004000 +#define RIO_OPS_STREAM_WRITE 0x00002000 +#define RIO_OPS_WRITE_RESPONSE 0x00001000 +#define RIO_OPS_DATA_MSG 0x00000800 +#define RIO_OPS_DOORBELL 0x00000400 +#define RIO_OPS_ATOMIC_TST_SWP 0x00000100 +#define RIO_OPS_ATOMIC_INC 0x00000080 +#define RIO_OPS_ATOMIC_DEC 0x00000040 +#define RIO_OPS_ATOMIC_SET 0x00000020 +#define RIO_OPS_ATOMIC_CLR 0x00000010 +#define RIO_OPS_PORT_WRITE 0x00000004 + + /* 0x20-0x30 *//* Reserved */ + +#define RIO_SWITCH_RT_LIMIT 0x34 +#define RIO_RT_MAX_DESTID 0x0000ffff + +#define RIO_MBOX_CSR 0x40 +#define RIO_MBOX0_AVAIL 0x80000000 +#define RIO_MBOX0_FULL 0x40000000 +#define RIO_MBOX0_EMPTY 0x20000000 +#define RIO_MBOX0_BUSY 0x10000000 +#define RIO_MBOX0_FAIL 0x08000000 +#define RIO_MBOX0_ERROR 0x04000000 +#define RIO_MBOX1_AVAIL 0x00800000 +#define RIO_MBOX1_FULL 0x00200000 +#define RIO_MBOX1_EMPTY 0x00200000 +#define RIO_MBOX1_BUSY 0x00100000 +#define RIO_MBOX1_FAIL 0x00080000 +#define RIO_MBOX1_ERROR 0x00040000 +#define RIO_MBOX2_AVAIL 0x00008000 +#define RIO_MBOX2_FULL 0x00004000 +#define RIO_MBOX2_EMPTY 0x00002000 +#define RIO_MBOX2_BUSY 0x00001000 +#define RIO_MBOX2_FAIL 0x00000800 +#define RIO_MBOX2_ERROR 0x00000400 +#define RIO_MBOX3_AVAIL 0x00000080 +#define RIO_MBOX3_FULL 0x00000040 +#define RIO_MBOX3_EMPTY 0x00000020 +#define RIO_MBOX3_BUSY 0x00000010 +#define RIO_MBOX3_FAIL 0x00000008 +#define RIO_MBOX3_ERROR 0x00000004 + +#define RIO_WRITE_PORT_CSR 0x44 +#define RIO_DOORBELL_CSR 0x44 +#define RIO_DOORBELL_AVAIL 0x80000000 +#define RIO_DOORBELL_FULL 0x40000000 +#define RIO_DOORBELL_EMPTY 0x20000000 +#define RIO_DOORBELL_BUSY 0x10000000 +#define RIO_DOORBELL_FAILED 0x08000000 +#define RIO_DOORBELL_ERROR 0x04000000 +#define RIO_WRITE_PORT_AVAILABLE 0x00000080 +#define RIO_WRITE_PORT_FULL 0x00000040 +#define RIO_WRITE_PORT_EMPTY 0x00000020 +#define RIO_WRITE_PORT_BUSY 0x00000010 +#define RIO_WRITE_PORT_FAILED 0x00000008 +#define RIO_WRITE_PORT_ERROR 0x00000004 + + /* 0x48 *//* Reserved */ + +#define RIO_PELL_CTRL_CSR 0x4c +#define RIO_PELL_ADDR_66 0x00000004 +#define RIO_PELL_ADDR_50 0x00000002 +#define RIO_PELL_ADDR_34 0x00000001 + + /* 0x50-0x54 *//* Reserved */ + +#define RIO_LCSH_BA 0x58 +#define RIO_LCSL_BA 0x5c + +#define RIO_DID_CSR 0x60 + + /* 0x64 *//* Reserved */ + +#define RIO_HOST_DID_LOCK_CSR 0x68 +#define RIO_COMPONENT_TAG_CSR 0x6c + +#define RIO_STD_RTE_CONF_DESTID_SEL_CSR 0x70 +#define RIO_STD_RTE_CONF_PORT_SEL_CSR 0x74 +#define RIO_STD_RTE_DEFAULT_PORT 0x78 + + /* 0x7c-0xf8 *//* Reserved */ + /* 0x100-0xfff8 *//* [I] Extended Features Space */ + +#define RIO_PORT_LINK_MAINT_REQ_CSR 0x140 +#define RIO_PORT_LINK_MAINT_RESP_CSR 0x144 +#define RIO_PORT_LOCAL_ACKID_CSR 0x148 +#define RIO_PORT_ERR_STAT_CSR 0x158 +#define RIO_PORT_CTRL_CSR 0x15c + +#define RIO_PORT_OFFSET 0x20 + +#define RIO_PORT_CTRL_TYPE_SERIAL 0x00000001 +#define RIO_PORT_CTRL_ENUM_BOUNDARY 0x00020000 +#define RIO_PORT_CTRL_MCAST_EVT_PART 0x00080000 +#define RIO_PORT_CTRL_ERR_CHECK_DIS 0x00100000 +#define RIO_PORT_CTRL_INPUT_PORT_EN 0x00200000 +#define RIO_PORT_CTRL_OUTPUT_PORT_EN 0x00400000 +#define RIO_PORT_CTRL_PORT_DIS 0x00800000 + + /* 0x10000-0xfffff8 *//* [I] Implementation-defined Space */ + +/* + * Extended Features Space is a configuration space area where + * functionality is mapped into extended feature blocks via a + * singly linked list of extended feature pointers (EFT_PTR). + * + * Each extended feature block can be identified/located in + * Extended Features Space by walking the extended feature + * list starting with the Extended Feature Pointer located + * in the Assembly Information CAR. + * + * Extended Feature Blocks (EFBs) are identified with an assigned + * EFB ID. Extended feature block offsets in the definitions are + * relative to the offset of the EFB within the Extended Features + * Space. + */ + +/* Helper macros to parse the Extended Feature Block header */ +#define RIO_EFB_PTR_MASK 0xffff0000 +#define RIO_EFB_ID_MASK 0x0000ffff +#define RIO_GET_BLOCK_PTR(x) ((x & RIO_EFB_PTR_MASK) >> 16) +#define RIO_GET_BLOCK_ID(x) (x & RIO_EFB_ID_MASK) + +/* Extended Feature Block IDs */ +#define RIO_EFB_PAR_EP_ID 0x0001 +#define RIO_EFB_PAR_EP_REC_ID 0x0002 +#define RIO_EFB_PAR_EP_FREE_ID 0x0003 +#define RIO_EFB_SER_EP_ID_V13P 0x0001 +#define RIO_EFB_SER_EP_REC_ID_V13P 0x0002 +#define RIO_EFB_SER_EP_FREE_ID_V13P 0x0003 +#define RIO_EFB_SER_EP_ID 0x0004 +#define RIO_EFB_SER_EP_REC_ID 0x0005 +#define RIO_EFB_SER_EP_FREE_ID 0x0006 +#define RIO_EFB_SER_EP_FREC_ID 0x0009 +#define RIO_EFB_ERR_MGMNT 0x0007 + +/* + * Physical 8/16 LP-LVDS + * ID=0x0001, Generic End Point Devices + * ID=0x0002, Generic End Point Devices, software assisted recovery option + * ID=0x0003, Generic End Point Free Devices + * + * Physical LP-Serial + * ID=0x0004, Generic End Point Devices + * ID=0x0005, Generic End Point Devices, software assisted recovery option + * ID=0x0006, Generic End Point Free Devices + */ +#define RIO_PORT_MNT_HEADER 0x0000 +#define RIO_PORT_REQ_CTL_CSR 0x0020 +#define RIO_PORT_RSP_CTL_CSR 0x0024 /* 0x0001/0x0002 */ +#define RIO_PORT_LINKTO_CTL_CSR 0x0020 /* Serial */ +#define RIO_PORT_RSPTO_CTL_CSR 0x0024 /* Serial */ +#define RIO_PORT_GEN_CTL_CSR 0x003c +#define RIO_PORT_GEN_HOST 0x80000000 +#define RIO_PORT_GEN_MASTER 0x40000000 +#define RIO_PORT_GEN_DISCOVERED 0x20000000 +#define RIO_PORT_N_MNT_REQ_CSR(x) (0x0040 + x*0x20) +#define RIO_PORT_N_MNT_RSP_CSR(x) (0x0044 + x*0x20) +#define RIO_PORT_N_MNT_RSP_RVAL 0x80000000 +#define RIO_PORT_N_MNT_RSP_ASTAT 0x000003e0 +#define RIO_PORT_N_MNT_RSP_LSTAT 0x0000001f +#define RIO_PORT_N_ACK_STS_CSR(x) (0x0048 + x*0x20) +#define RIO_PORT_N_ACK_CLEAR 0x80000000 +#define RIO_PORT_N_ACK_INBOUND 0x1f000000 +#define RIO_PORT_N_ACK_OUTSTAND 0x00001f00 +#define RIO_PORT_N_ACK_OUTBOUND 0x0000001f +#define RIO_PORT_N_ERR_STS_CSR(x) (0x0058 + x*0x20) +#define RIO_PORT_N_ERR_STS_PW_OUT_ES 0x00010000 /* Output Error-stopped */ +#define RIO_PORT_N_ERR_STS_PW_INP_ES 0x00000100 /* Input Error-stopped */ +#define RIO_PORT_N_ERR_STS_PW_PEND 0x00000010 /* Port-Write Pending */ +#define RIO_PORT_N_ERR_STS_PORT_ERR 0x00000004 +#define RIO_PORT_N_ERR_STS_PORT_OK 0x00000002 +#define RIO_PORT_N_ERR_STS_PORT_UNINIT 0x00000001 +#define RIO_PORT_N_ERR_STS_CLR_MASK 0x07120204 +#define RIO_PORT_N_CTL_CSR(x) (0x005c + x*0x20) +#define RIO_PORT_N_CTL_PWIDTH 0xc0000000 +#define RIO_PORT_N_CTL_PWIDTH_1 0x00000000 +#define RIO_PORT_N_CTL_PWIDTH_4 0x40000000 +#define RIO_PORT_N_CTL_P_TYP_SER 0x00000001 +#define RIO_PORT_N_CTL_LOCKOUT 0x00000002 +#define RIO_PORT_N_CTL_EN_RX_SER 0x00200000 +#define RIO_PORT_N_CTL_EN_TX_SER 0x00400000 +#define RIO_PORT_N_CTL_EN_RX_PAR 0x08000000 +#define RIO_PORT_N_CTL_EN_TX_PAR 0x40000000 + +/* + * Error Management Extensions (RapidIO 1.3+, Part 8) + * + * Extended Features Block ID=0x0007 + */ + +/* General EM Registers (Common for all Ports) */ + +#define RIO_EM_EFB_HEADER 0x000 +#define RIO_EM_LTL_ERR_DETECT 0x008 +#define RIO_EM_LTL_ERR_EN 0x00c +#define RIO_EM_LTL_HIADDR_CAP 0x010 +#define RIO_EM_LTL_ADDR_CAP 0x014 +#define RIO_EM_LTL_DEVID_CAP 0x018 +#define RIO_EM_LTL_CTRL_CAP 0x01c +#define RIO_EM_PW_TGT_DEVID 0x028 +#define RIO_EM_PKT_TTL 0x02c + +/* Per-Port EM Registers */ + +#define RIO_EM_PN_ERR_DETECT(x) (0x040 + x*0x40) +#define REM_PED_IMPL_SPEC 0x80000000 +#define REM_PED_LINK_TO 0x00000001 +#define RIO_EM_PN_ERRRATE_EN(x) (0x044 + x*0x40) +#define RIO_EM_PN_ATTRIB_CAP(x) (0x048 + x*0x40) +#define RIO_EM_PN_PKT_CAP_0(x) (0x04c + x*0x40) +#define RIO_EM_PN_PKT_CAP_1(x) (0x050 + x*0x40) +#define RIO_EM_PN_PKT_CAP_2(x) (0x054 + x*0x40) +#define RIO_EM_PN_PKT_CAP_3(x) (0x058 + x*0x40) +#define RIO_EM_PN_ERRRATE(x) (0x068 + x*0x40) +#define RIO_EM_PN_ERRRATE_TR(x) (0x06c + x*0x40) + +/** + * rio_init - Initialize RapidIO subsystem + * @riohdid: RapidIO host device ID + * @riosize: RapidIO device ID size + * @rioports: bitmask of ports to configure + * @riopmode: path mode (lanes to ports mapping) + * @riobaudrate: link baudrate + * + * Returns riohandle on success or %NULL on failure. + */ +void *rio_init(int riohdid, + int riosize, + u32 rioports, + int riopmode, + int riobaudrate); + +/** + * rio_shutdown - Shutdown RapidIO subsystem + * @riohandle: RapidIO handle (returned by rio_init) + * + * Returns %0 on success or %-1 on failure. + */ +int rio_shutdown(void *riohandle); + +/** + * rio_config_read - Generate a RIO read maintenance transaction + * @portid: Output port ID of transaction + * @destid: Destination ID of transaction + * @hopcount: Number of hops to target device + * @offset: Offset into configuration space + * @len: Length (in bytes) of the maintenance transaction + * @val: Location to be read into + * + * Returns %0 on success or %-1 on failure. + */ +int rio_config_read(int portid, + u16 destid, + u8 hopcount, + u32 offset, + int len, + u32 *val); + +/** + * rio_config_write - Generate a RIO write maintenance transaction + * @portid: Output port ID of transaction + * @destid: Destination ID of transaction + * @hopcount: Number of hops to target device + * @offset: Offset into configuration space + * @len: Length (in bytes) of the maintenance transaction + * @val: Value to be written + * + * Returns %0 on success or %-1 on failure. + */ +int rio_config_write(int portid, + u16 destid, + u8 hopcount, + u32 offset, + int len, + u32 val); + +/** + * rio_local_config_read - RIO local config space read + * @offset: Offset into configuration space + * @len: Length (in bytes) of the maintenance transaction + * @data: Value to be read into + * + * Returns %0 on success or %-1 on failure. + */ +int rio_local_config_read(u32 offset, int len, u32 *data); + +/** + * rio_local_config_write - RIO local config space write + * @offset: Offset into configuration space + * @len: Length (in bytes) of the maintenance transaction + * @data: Value to be written + * + * Returns %0 on success or %-1 on failure. + */ +int rio_local_config_write(u32 offset, int len, u32 data); + +#endif /* _RIO_H_ */ -- 1.6.2.1 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
