rcar_gen3: drivers: rom api
Signed-off-by: ldts <jramirez@baylibre.com>
diff --git a/drivers/renesas/rcar/rom/rom_api.c b/drivers/renesas/rcar/rom/rom_api.c
new file mode 100644
index 0000000..c14de55
--- /dev/null
+++ b/drivers/renesas/rcar/rom/rom_api.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2015-2018, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <mmio.h>
+#include <stdint.h>
+#include "rcar_def.h"
+#include "rom_api.h"
+
+typedef uint32_t(*rom_secure_boot_api_f) (uint32_t *key, uint32_t *cert,
+ rom_read_flash_f pFuncReadFlash);
+
+typedef uint32_t(*rom_get_lcs_api_f) (uint32_t *lcs);
+
+#define OLD_API_TABLE1 (0U) /* H3 Ver.1.0/Ver.1.1 */
+#define OLD_API_TABLE2 (1U) /* H3 Ver.2.0 */
+#define OLD_API_TABLE3 (2U) /* M3 Ver.1.0 */
+#define NEW_API_TABLE (3U) /* H3 Ver.3.0, M3 Ver.1.1 or later, M3N, E3 */
+#define API_TABLE_MAX (4U) /* table max */
+ /* Later than H3 Ver.2.0 */
+
+static uint32_t get_table_index(void)
+{
+ uint32_t product;
+ uint32_t cut_ver;
+ uint32_t index;
+
+ product = mmio_read_32(RCAR_PRR) & RCAR_PRODUCT_MASK;
+ cut_ver = mmio_read_32(RCAR_PRR) & RCAR_CUT_MASK;
+
+ switch (product) {
+ case RCAR_PRODUCT_H3:
+ if (cut_ver == RCAR_CUT_VER10)
+ index = OLD_API_TABLE1;
+ else if (cut_ver == RCAR_CUT_VER11)
+ index = OLD_API_TABLE1;
+ else if (cut_ver == RCAR_CUT_VER20)
+ index = OLD_API_TABLE2;
+ else
+ /* Later than H3 Ver.2.0 */
+ index = NEW_API_TABLE;
+ break;
+ case RCAR_PRODUCT_M3:
+ if (cut_ver == RCAR_CUT_VER10)
+ index = OLD_API_TABLE3;
+ else
+ /* M3 Ver.1.1 or later */
+ index = NEW_API_TABLE;
+ break;
+ default:
+ index = NEW_API_TABLE;
+ break;
+ }
+
+ return index;
+}
+
+uint32_t rcar_rom_secure_boot_api(uint32_t *key, uint32_t *cert,
+ rom_read_flash_f read_flash)
+{
+ static const uintptr_t rom_api_table[API_TABLE_MAX] = {
+ 0xEB10DD64U, /* H3 Ver.1.0/Ver.1.1 */
+ 0xEB116ED4U, /* H3 Ver.2.0 */
+ 0xEB1102FCU, /* M3 Ver.1.0 */
+ 0xEB100180U /* H3 Ver.3.0, M3 Ver.1.1 or later, M3N, E3 */
+ };
+ rom_secure_boot_api_f secure_boot;
+ uint32_t index;
+
+ index = get_table_index();
+ secure_boot = (rom_secure_boot_api_f) rom_api_table[index];
+
+ return secure_boot(key, cert, read_flash);
+}
+
+uint32_t rcar_rom_get_lcs(uint32_t *lcs)
+{
+ static const uintptr_t rom_get_lcs_table[API_TABLE_MAX] = {
+ 0xEB10DFE0U, /* H3 Ver.1.0/Ver.1.1 */
+ 0xEB117150U, /* H3 Ver.2.0 */
+ 0xEB110578U, /* M3 Ver.1.0 */
+ 0xEB10018CU /* H3 Ver.3.0, M3 Ver.1.1 or later, M3N, E3 */
+ };
+ rom_get_lcs_api_f get_lcs;
+ uint32_t index;
+
+ index = get_table_index();
+ get_lcs = (rom_get_lcs_api_f) rom_get_lcs_table[index];
+
+ return get_lcs(lcs);
+}
diff --git a/drivers/renesas/rcar/rom/rom_api.h b/drivers/renesas/rcar/rom/rom_api.h
new file mode 100644
index 0000000..85105ef
--- /dev/null
+++ b/drivers/renesas/rcar/rom/rom_api.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef ROM_API_H__
+#define ROM_API_H__
+
+#include <stdint.h>
+
+#define SBROM_OK (0x00000000U)
+#define SBROM_ILLEGAL_INPUT_PARAM_ERR (0x0B000001U)
+#define SBROM_ILLEGAL_OEM_HASH_VALUE_ERR (0x0B000008U)
+#define SBROM_ILLEGAL_LCS_FOR_OPERATION_ERR (0x0B000010U)
+#define SBROM_HASH_NOT_PROGRAMMED_ERR (0x0B000100U)
+#define SBROM_PUB_KEY_HASH_VALIDATION_FAILURE (0xF1000006U)
+#define SBROM_RSA_SIG_VERIFICATION_FAILED (0xF1000007U)
+
+#define LCS_CM (0x0U)
+#define LCS_DM (0x1U)
+#define LCS_SD (0x3U)
+#define LCS_SE (0x5U)
+#define LCS_FA (0x7U)
+
+typedef uint32_t(*rom_read_flash_f) (uint64_t src, uint8_t *dst, uint32_t len);
+uint32_t rcar_rom_secure_boot_api(uint32_t *key, uint32_t *cert,
+ rom_read_flash_f f);
+uint32_t rcar_rom_get_lcs(uint32_t *lcs);
+
+#endif