@@ -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"
@@ -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
new file mode 100644
@@ -0,0 +1,260 @@
+/*
+ * (C) Copyright 2015
+ * Texas Instruments Incorporated, <www.ti.com>
+ * Authors: Aurelien Jacquiot <a-jacquiot@ti.com>
+ *
+ * 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"
+);
new file mode 100644
@@ -0,0 +1,382 @@
+/*
+ * (C) Copyright 2015
+ * Texas Instruments Incorporated, <www.ti.com>
+ * Authors: Aurelien Jacquiot <a-jacquiot@ti.com>
+ *
+ * Part of this file is borrowed from Linux rio_regs.h.
+ * (C) Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * 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_ */