rcar_gen3: drivers: io [emmc/mem]
Signed-off-by: ldts <jramirez@baylibre.com>
diff --git a/drivers/renesas/rcar/io/io_rcar.c b/drivers/renesas/rcar/io/io_rcar.c
new file mode 100644
index 0000000..4293c51
--- /dev/null
+++ b/drivers/renesas/rcar/io/io_rcar.c
@@ -0,0 +1,640 @@
+/*
+ * Copyright (c) 2015-2018, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <auth_mod.h>
+#include <bl_common.h>
+#include <debug.h>
+#include <errno.h>
+#include <firmware_image_package.h>
+#include <io_driver.h>
+#include <io_storage.h>
+#include <platform.h>
+#include <platform_def.h>
+#include <stdint.h>
+#include <string.h>
+#include <uuid.h>
+#include <mmio.h>
+#include <arch_helpers.h>
+#include "io_rcar.h"
+#include "io_common.h"
+#include "io_private.h"
+extern int32_t plat_get_drv_source(uint32_t id, uintptr_t *dev,
+ uintptr_t *image_spec);
+
+extern int auth_mod_verify_img(unsigned int img_id, void *ptr,
+ unsigned int len);
+
+static int32_t rcar_dev_open(const uintptr_t dev_spec __attribute__ ((unused)),
+ io_dev_info_t **dev_info);
+static int32_t rcar_dev_close(io_dev_info_t *dev_info);
+
+typedef struct {
+ const int32_t name;
+ const uint32_t offset;
+ const uint32_t attr;
+} plat_rcar_name_offset_t;
+
+typedef struct {
+ /* Put position above the struct to allow {0} on static init.
+ * It is a workaround for a known bug in GCC
+ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
+ */
+ uint32_t position;
+ uint32_t no_load;
+ uintptr_t offset;
+ uint32_t size;
+ uintptr_t dst;
+ uintptr_t partition; /* for eMMC */
+ /* RCAR_EMMC_PARTITION_BOOT_0 */
+ /* RCAR_EMMC_PARTITION_BOOT_1 */
+ /* RCAR_EMMC_PARTITION_USER */
+} file_state_t;
+
+#define RCAR_GET_FLASH_ADR(a, b) ((uint32_t)((0x40000U * (a)) + (b)))
+#define RCAR_ATTR_SET_CALCADDR(a) ((a) & 0xF)
+#define RCAR_ATTR_SET_ISNOLOAD(a) (((a) & 0x1) << 16U)
+#define RCAR_ATTR_SET_CERTOFF(a) (((a) & 0xF) << 8U)
+#define RCAR_ATTR_SET_ALL(a, b, c) ((uint32_t)(RCAR_ATTR_SET_CALCADDR(a) |\
+ RCAR_ATTR_SET_ISNOLOAD(b) | \
+ RCAR_ATTR_SET_CERTOFF(c)))
+
+#define RCAR_ATTR_GET_CALCADDR(a) ((a) & 0xFU)
+#define RCAR_ATTR_GET_ISNOLOAD(a) (((a) >> 16) & 0x1U)
+#define RCAR_ATTR_GET_CERTOFF(a) ((uint32_t)(((a) >> 8) & 0xFU))
+
+#define RCAR_MAX_BL3X_IMAGE (8U)
+#define RCAR_SECTOR6_CERT_OFFSET (0x400U)
+#define RCAR_SDRAM_certESS (0x43F00000U)
+#define RCAR_CERT_SIZE (0x800U)
+#define RCAR_CERT_INFO_SIZE_OFFSET (0x264U)
+#define RCAR_CERT_INFO_DST_OFFSET (0x154U)
+#define RCAR_CERT_INFO_SIZE_OFFSET1 (0x364U)
+#define RCAR_CERT_INFO_DST_OFFSET1 (0x1D4U)
+#define RCAR_CERT_INFO_SIZE_OFFSET2 (0x464U)
+#define RCAR_CERT_INFO_DST_OFFSET2 (0x254U)
+#define RCAR_CERT_LOAD (1U)
+
+#define RCAR_FLASH_CERT_HEADER RCAR_GET_FLASH_ADR(6U, 0U)
+#define RCAR_EMMC_CERT_HEADER (0x00030000U)
+
+#define RCAR_COUNT_LOAD_BL33 (2U)
+#define RCAR_COUNT_LOAD_BL33X (3U)
+
+static const plat_rcar_name_offset_t name_offset[] = {
+ {BL31_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(0, 0, 0)},
+
+ /* BL3-2 is optional in the platform */
+ {BL32_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(1, 0, 1)},
+ {BL33_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(2, 0, 2)},
+ {BL332_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(3, 0, 3)},
+ {BL333_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(4, 0, 4)},
+ {BL334_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(5, 0, 5)},
+ {BL335_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(6, 0, 6)},
+ {BL336_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(7, 0, 7)},
+ {BL337_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(8, 0, 8)},
+ {BL338_IMAGE_ID, 0U, RCAR_ATTR_SET_ALL(9, 0, 9)},
+};
+
+#if TRUSTED_BOARD_BOOT
+static const plat_rcar_name_offset_t cert_offset[] = {
+ /* Certificates */
+ {TRUSTED_KEY_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)},
+ {SOC_FW_KEY_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)},
+ {TRUSTED_OS_FW_KEY_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)},
+ {NON_TRUSTED_FW_KEY_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)},
+ {SOC_FW_CONTENT_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 0)},
+ {TRUSTED_OS_FW_CONTENT_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 1)},
+ {NON_TRUSTED_FW_CONTENT_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 2)},
+ {BL332_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 3)},
+ {BL333_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 4)},
+ {BL334_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 5)},
+ {BL335_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 6)},
+ {BL336_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 7)},
+ {BL337_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 8)},
+ {BL338_CERT_ID, 0U, RCAR_ATTR_SET_ALL(0, 1, 9)},
+};
+#endif /* TRUSTED_BOARD_BOOT */
+
+static file_state_t current_file = { 0 };
+
+static uintptr_t rcar_handle, rcar_spec;
+static uint64_t rcar_image_header[RCAR_MAX_BL3X_IMAGE + 2U] = { 0U };
+static uint64_t rcar_image_header_prttn[RCAR_MAX_BL3X_IMAGE + 2U] = { 0U };
+static uint64_t rcar_image_number = { 0U };
+static uint32_t rcar_cert_load = { 0U };
+
+static io_type_t device_type_rcar(void)
+{
+ return IO_TYPE_FIRMWARE_IMAGE_PACKAGE;
+}
+
+int32_t rcar_get_certificate(const int32_t name, uint32_t *cert)
+{
+#if TRUSTED_BOARD_BOOT
+ int32_t i;
+ for (i = 0; i < ARRAY_SIZE(cert_offset); i++) {
+ if (name != cert_offset[i].name)
+ continue;
+
+ *cert = RCAR_CERT_SIZE;
+ *cert *= RCAR_ATTR_GET_CERTOFF(cert_offset[i].attr);
+ *cert += RCAR_SDRAM_certESS;
+ return 0;
+ }
+#endif
+ return -EINVAL;
+}
+
+static int32_t file_to_offset(const int32_t name, uintptr_t *offset,
+ uint32_t *cert, uint32_t *no_load,
+ uintptr_t *partition)
+{
+ uint32_t addr;
+ int32_t i;
+
+ for (i = 0; i < ARRAY_SIZE(name_offset); i++) {
+ if (name != name_offset[i].name)
+ continue;
+
+ addr = RCAR_ATTR_GET_CALCADDR(name_offset[i].attr);
+ if (rcar_image_number + 2 < addr)
+ continue;
+
+ *offset = rcar_image_header[addr];
+ *cert = RCAR_CERT_SIZE;
+ *cert *= RCAR_ATTR_GET_CERTOFF(name_offset[i].attr);
+ *cert += RCAR_SDRAM_certESS;
+ *no_load = RCAR_ATTR_GET_ISNOLOAD(name_offset[i].attr);
+ *partition = rcar_image_header_prttn[addr];
+ return IO_SUCCESS;
+ }
+
+#if TRUSTED_BOARD_BOOT
+ for (i = 0; i < ARRAY_SIZE(cert_offset); i++) {
+ if (name != cert_offset[i].name)
+ continue;
+
+ *no_load = RCAR_ATTR_GET_ISNOLOAD(cert_offset[i].attr);
+ *partition = 0U;
+ *offset = 0U;
+ *cert = 0U;
+ return IO_SUCCESS;
+ }
+#endif
+ return -EINVAL;
+}
+
+#define RCAR_BOOT_KEY_CERT_NEW (0xE6300F00U)
+#define RCAR_CERT_MAGIC_NUM (0xE291F358U)
+
+void rcar_read_certificate(uint64_t cert, uint32_t *len, uintptr_t *dst)
+{
+ uint32_t seed, val, info_1, info_2;
+ uintptr_t size, dsth, dstl;
+
+ cert &= 0xFFFFFFFFU;
+
+ seed = mmio_read_32(RCAR_BOOT_KEY_CERT_NEW);
+ val = mmio_read_32(RCAR_BOOT_KEY_CERT_NEW + 0xC);
+ info_1 = (val >> 18) & 0x3U;
+ val = mmio_read_32(cert + 0xC);
+ info_2 = (val >> 21) & 0x3;
+
+ if (seed == RCAR_CERT_MAGIC_NUM) {
+ if (info_1 != 1) {
+ ERROR("BL2: Cert is invalid.\n");
+ *dst = 0;
+ *len = 0;
+ return;
+ }
+
+ if (info_2 > 2) {
+ ERROR("BL2: Cert is invalid.\n");
+ *dst = 0;
+ *len = 0;
+ return;
+ }
+
+ switch (info_2) {
+ case 2:
+ size = cert + RCAR_CERT_INFO_SIZE_OFFSET2;
+ dstl = cert + RCAR_CERT_INFO_DST_OFFSET2;
+ break;
+ case 1:
+ size = cert + RCAR_CERT_INFO_SIZE_OFFSET1;
+ dstl = cert + RCAR_CERT_INFO_DST_OFFSET1;
+ break;
+ case 0:
+ size = cert + RCAR_CERT_INFO_SIZE_OFFSET;
+ dstl = cert + RCAR_CERT_INFO_DST_OFFSET;
+ break;
+ }
+
+ *len = mmio_read_32(size) * 4U;
+ dsth = dstl + 4U;
+ *dst = ((uintptr_t) mmio_read_32(dsth) << 32) +
+ ((uintptr_t) mmio_read_32(dstl));
+ return;
+ }
+
+ size = cert + RCAR_CERT_INFO_SIZE_OFFSET;
+ *len = mmio_read_32(size) * 4U;
+ dstl = cert + RCAR_CERT_INFO_DST_OFFSET;
+ dsth = dstl + 4U;
+ *dst = ((uintptr_t) mmio_read_32(dsth) << 32) +
+ ((uintptr_t) mmio_read_32(dstl));
+}
+
+static int32_t check_load_area(uintptr_t dst, uintptr_t len)
+{
+ uint32_t legacy = dst + len <= UINT32_MAX - 1 ? 1 : 0;
+ uintptr_t dram_start, dram_end;
+ uintptr_t prot_start, prot_end;
+ int32_t result = IO_SUCCESS;
+
+ dram_start = legacy ? DRAM1_BASE : DRAM_40BIT_BASE;
+
+ dram_end = legacy ? DRAM1_BASE + DRAM1_SIZE :
+ DRAM_40BIT_BASE + DRAM_40BIT_SIZE;
+
+ prot_start = legacy ? DRAM_PROTECTED_BASE : DRAM_40BIT_PROTECTED_BASE;
+
+ prot_end = prot_start + DRAM_PROTECTED_SIZE;
+
+ if (dst < dram_start || dst > dram_end - len) {
+ ERROR("BL2: dst address is on the protected area.\n");
+ result = IO_FAIL;
+ goto done;
+ }
+
+ /* load image is within SDRAM protected area */
+ if (dst >= prot_start && dst < prot_end) {
+ ERROR("BL2: dst address is on the protected area.\n");
+ result = IO_FAIL;
+ }
+
+ if (dst < prot_start && dst > prot_start - len) {
+ ERROR("BL2: loaded data is on the protected area.\n");
+ result = IO_FAIL;
+ }
+done:
+ if (result == IO_FAIL)
+ ERROR("BL2: Out of range : dst=0x%lx len=0x%lx\n", dst, len);
+
+ return result;
+}
+
+static int32_t load_bl33x(void)
+{
+ static int32_t loaded = IO_NOT_SUPPORTED;
+ uintptr_t dst, partition, handle;
+ uint32_t noload, cert, len, i;
+ uintptr_t offset;
+ int32_t rc;
+ size_t cnt;
+ const int32_t img[] = {
+ BL33_IMAGE_ID,
+ BL332_IMAGE_ID,
+ BL333_IMAGE_ID,
+ BL334_IMAGE_ID,
+ BL335_IMAGE_ID,
+ BL336_IMAGE_ID,
+ BL337_IMAGE_ID,
+ BL338_IMAGE_ID
+ };
+
+ if (loaded != IO_NOT_SUPPORTED)
+ return loaded;
+
+ for (i = 1; i < rcar_image_number; i++) {
+ rc = file_to_offset(img[i], &offset, &cert, &noload,
+ &partition);
+ if (rc != IO_SUCCESS) {
+ WARN("load_bl33x: failed to get offset\n");
+ loaded = IO_FAIL;
+ return loaded;
+ }
+
+ rcar_read_certificate((uint64_t) cert, &len, &dst);
+ ((io_drv_spec_t *) rcar_spec)->partition = partition;
+
+ rc = io_open(rcar_handle, rcar_spec, &handle);
+ if (rc != IO_SUCCESS) {
+ WARN("Failed to open FIP (%i)\n", rc);
+ loaded = IO_FAIL;
+ return loaded;
+ }
+
+ rc = io_seek(handle, IO_SEEK_SET, offset);
+ if (rc != IO_SUCCESS) {
+ WARN("load_bl33x: failed to seek\n");
+ loaded = IO_FAIL;
+ return loaded;
+ }
+
+ rc = check_load_area(dst, len);
+ if (rc != IO_SUCCESS) {
+ WARN("load_bl33x: check load area\n");
+ loaded = IO_FAIL;
+ return loaded;
+ }
+
+ rc = io_read(handle, dst, len, &cnt);
+ if (rc != IO_SUCCESS) {
+ WARN("load_bl33x: failed to read\n");
+ loaded = IO_FAIL;
+ return loaded;
+ }
+#if TRUSTED_BOARD_BOOT
+ rc = auth_mod_verify_img(img[i], (void *)dst, len);
+ if (rc) {
+ memset((void *)dst, 0x00, len);
+ loaded = IO_FAIL;
+ return loaded;
+ }
+#endif
+ io_close(handle);
+ }
+
+ loaded = IO_SUCCESS;
+
+ return loaded;
+}
+
+static int32_t rcar_dev_init(io_dev_info_t *dev_info, const uintptr_t name)
+{
+ uint64_t header[64] __aligned(FLASH_TRANS_SIZE_UNIT) = {
+ 0};
+ uintptr_t handle;
+ ssize_t offset;
+ uint32_t i;
+ int32_t rc;
+ size_t cnt;
+
+ /* Obtain a reference to the image by querying the platform layer */
+ rc = plat_get_drv_source(name, &rcar_handle, &rcar_spec);
+ if (rc != IO_SUCCESS) {
+ WARN("Failed to obtain reference to img %ld (%i)\n", name, rc);
+ return IO_FAIL;
+ }
+
+ if (RCAR_CERT_LOAD == rcar_cert_load)
+ return IO_SUCCESS;
+
+ rc = io_open(rcar_handle, rcar_spec, &handle);
+ if (rc != IO_SUCCESS) {
+ WARN("Failed to access img %ld (%i)\n", name, rc);
+ return IO_FAIL;
+ }
+
+ /* get start address list */
+ /* [0] address num */
+ /* [1] BL33-1 image address */
+ /* [2] BL33-2 image address */
+ /* [3] BL33-3 image address */
+ /* [4] BL33-4 image address */
+ /* [5] BL33-5 image address */
+ /* [6] BL33-6 image address */
+ /* [7] BL33-7 image address */
+ /* [8] BL33-8 image address */
+ offset = name == EMMC_DEV_ID ? RCAR_EMMC_CERT_HEADER :
+ RCAR_FLASH_CERT_HEADER;
+ rc = io_seek(handle, IO_SEEK_SET, offset);
+ if (rc != IO_SUCCESS) {
+ WARN("Firmware Image Package header failed to seek\n");
+ goto error;
+ }
+#if RCAR_BL2_DCACHE == 1
+ inv_dcache_range((uint64_t) header, sizeof(header));
+#endif
+ rc = io_read(handle, (uintptr_t) &header, sizeof(header), &cnt);
+ if (rc != IO_SUCCESS) {
+ WARN("Firmware Image Package header failed to read\n");
+ goto error;
+ }
+
+ rcar_image_number = header[0];
+ for (i = 0; i < rcar_image_number + 2; i++) {
+ rcar_image_header[i] = header[i * 2 + 1];
+ rcar_image_header_prttn[i] = header[i * 2 + 2];
+ }
+
+ if (rcar_image_number == 0 || rcar_image_number > RCAR_MAX_BL3X_IMAGE) {
+ WARN("Firmware Image Package header check failed.\n");
+ goto error;
+ }
+
+ rc = io_seek(handle, IO_SEEK_SET, offset + RCAR_SECTOR6_CERT_OFFSET);
+ if (rc != IO_SUCCESS) {
+ WARN("Firmware Image Package header failed to seek cert\n");
+ goto error;
+ }
+#if RCAR_BL2_DCACHE == 1
+ inv_dcache_range(RCAR_SDRAM_certESS,
+ RCAR_CERT_SIZE * (2 + rcar_image_number));
+#endif
+ rc = io_read(handle, RCAR_SDRAM_certESS,
+ RCAR_CERT_SIZE * (2 + rcar_image_number), &cnt);
+ if (rc != IO_SUCCESS) {
+ WARN("cert file read error.\n");
+ goto error;
+ }
+
+ rcar_cert_load = RCAR_CERT_LOAD;
+error:
+
+ if (rc != IO_SUCCESS)
+ rc = IO_FAIL;
+
+ io_close(handle);
+
+ return rc;
+
+}
+
+static int32_t rcar_file_open(io_dev_info_t *info, const uintptr_t file_spec,
+ io_entity_t *entity)
+{
+ const io_drv_spec_t *spec = (io_drv_spec_t *) file_spec;
+ uintptr_t partition, offset, dst;
+ uint32_t noload, cert, len;
+ int32_t rc;
+
+ /* Only one file open at a time. We need to track state (ie, file
+ * cursor position). Since the header lives at * offset zero, this entry
+ * should never be zero in an active file.
+ * Once the system supports dynamic memory allocation we will allow more
+ * than one open file at a time. */
+ if (current_file.offset != 0U) {
+ WARN("rcar_file_open : Only one open file at a time.\n");
+ return IO_RESOURCES_EXHAUSTED;
+ }
+
+ rc = file_to_offset(spec->offset, &offset, &cert, &noload, &partition);
+ if (rc != IO_SUCCESS) {
+ WARN("Failed to open file name %ld (%i)\n", spec->offset, rc);
+ return IO_FAIL;
+ }
+
+ if (noload) {
+ current_file.offset = 1;
+ current_file.dst = 0;
+ current_file.size = 1;
+ current_file.position = 0;
+ current_file.no_load = noload;
+ current_file.partition = 0;
+ entity->info = (uintptr_t) ¤t_file;
+
+ return IO_SUCCESS;
+ }
+
+ rcar_read_certificate((uint64_t) cert, &len, &dst);
+
+ /*----------------*
+ * Baylibre: HACK *
+ *----------------*/
+ if (BL31_IMAGE_ID == spec->offset && len < RCAR_TRUSTED_SRAM_SIZE) {
+ WARN("r-car ignoring the BL31 size from certificate,"
+ "using RCAR_TRUSTED_SRAM_SIZE instead\n");
+ len = RCAR_TRUSTED_SRAM_SIZE;
+ }
+
+ current_file.partition = partition;
+ current_file.no_load = noload;
+ current_file.offset = offset;
+ current_file.position = 0;
+ current_file.size = len;
+ current_file.dst = dst;
+ entity->info = (uintptr_t) ¤t_file;
+
+ return IO_SUCCESS;
+}
+
+static int32_t rcar_file_len(io_entity_t *entity, size_t *length)
+{
+ *length = ((file_state_t *) entity->info)->size;
+
+ NOTICE("%s: len: 0x%08lx\n", __func__, *length);
+
+ return IO_SUCCESS;
+}
+
+static int32_t rcar_file_read(io_entity_t *entity, uintptr_t buffer,
+ size_t length, size_t *cnt)
+{
+ file_state_t *fp = (file_state_t *) entity->info;
+ ssize_t offset = fp->offset + fp->position;
+ uintptr_t handle;
+ int32_t rc;
+
+#ifdef SPD_NONE
+ static uint32_t load_bl33x_counter = 1;
+#else
+ static uint32_t load_bl33x_counter;
+#endif
+ if (current_file.no_load) {
+ *cnt = length;
+ return IO_SUCCESS;
+ }
+
+ ((io_drv_spec_t *) rcar_spec)->partition = fp->partition;
+
+ rc = io_open(rcar_handle, rcar_spec, &handle);
+ if (rc != IO_SUCCESS) {
+ WARN("Failed to open FIP (%i)\n", rc);
+ return IO_FAIL;
+ }
+
+ rc = io_seek(handle, IO_SEEK_SET, offset);
+ if (rc != IO_SUCCESS) {
+ WARN("rcar_file_read: failed to seek\n");
+ goto error;
+ }
+
+ if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33) {
+ rc = check_load_area(buffer, length);
+ if (rc != IO_SUCCESS) {
+ WARN("rcar_file_read: load area err\n");
+ goto error;
+ }
+ }
+
+ rc = io_read(handle, buffer, length, cnt);
+ if (rc != IO_SUCCESS) {
+ WARN("Failed to read payload (%i)\n", rc);
+ goto error;
+ }
+
+ fp->position += *cnt;
+ io_close(handle);
+
+ load_bl33x_counter += 1;
+ if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33X)
+ return load_bl33x();
+
+ return IO_SUCCESS;
+error:
+ io_close(handle);
+ return IO_FAIL;
+}
+
+static int32_t rcar_file_close(io_entity_t *entity)
+{
+ if (current_file.offset)
+ memset(¤t_file, 0, sizeof(current_file));
+
+ entity->info = 0U;
+
+ return IO_SUCCESS;
+}
+
+static const io_dev_funcs_t rcar_dev_funcs = {
+ .type = &device_type_rcar,
+ .open = &rcar_file_open,
+ .seek = NULL,
+ .size = &rcar_file_len,
+ .read = &rcar_file_read,
+ .write = NULL,
+ .close = &rcar_file_close,
+ .dev_init = &rcar_dev_init,
+ .dev_close = &rcar_dev_close,
+};
+
+static const io_dev_info_t rcar_dev_info = {
+ .funcs = &rcar_dev_funcs,
+ .info = (uintptr_t) 0
+};
+
+static const io_dev_connector_t rcar_dev_connector = {
+ .dev_open = &rcar_dev_open
+};
+
+static int32_t rcar_dev_open(const uintptr_t dev_spec __attribute__ ((unused)),
+ io_dev_info_t **dev_info)
+{
+ *dev_info = (io_dev_info_t *) &rcar_dev_info;
+
+ return IO_SUCCESS;
+}
+
+static int32_t rcar_dev_close(io_dev_info_t *dev_info)
+{
+ rcar_handle = 0;
+ rcar_spec = 0;
+
+ return IO_SUCCESS;
+}
+
+int32_t rcar_register_io_dev(const io_dev_connector_t **dev_con)
+{
+ int32_t result;
+
+ result = io_register_device(&rcar_dev_info);
+ if (result == IO_SUCCESS)
+ *dev_con = &rcar_dev_connector;
+
+ return result;
+}