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authorBiju Das <biju.das.jz@bp.renesas.com>2020-12-16 10:56:03 +0000
committerBiju Das <biju.das.jz@bp.renesas.com>2021-01-13 13:03:48 +0000
commite17997dfd6e615c99a2176d9bcaf7a73c6f618cd (patch)
tree69d3f428fc9aa4e3b22f32407bfc222d3f7f30ce /drivers/renesas/common/rom/rom_api.c
parentcdcf1f1492dd05b8f9038e1bbdd091e93c153a3c (diff)
downloadtrusted-firmware-a-e17997dfd6e615c99a2176d9bcaf7a73c6f618cd.tar.gz
drivers: renesas: rom: Move to common
Move rom driver code to common directory, so that the same code can be re-used by both R-Car Gen3 and RZ/G2 platforms. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Change-Id: I399dfb5eff186db76d26fa9c54bea88bee66789c
Diffstat (limited to 'drivers/renesas/common/rom/rom_api.c')
-rw-r--r--drivers/renesas/common/rom/rom_api.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/renesas/common/rom/rom_api.c b/drivers/renesas/common/rom/rom_api.c
new file mode 100644
index 0000000000..fda28150e9
--- /dev/null
+++ b/drivers/renesas/common/rom/rom_api.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2015-2019, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdint.h>
+
+#include <lib/mmio.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, D3, V3M WS2.0 */
+#define NEW_API_TABLE2 (4U) /* V3M WS1.0 */
+#define API_TABLE_MAX (5U) /* 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) & PRR_PRODUCT_MASK;
+ cut_ver = mmio_read_32(RCAR_PRR) & PRR_CUT_MASK;
+
+ switch (product) {
+ case PRR_PRODUCT_H3:
+ if (cut_ver == PRR_PRODUCT_10)
+ index = OLD_API_TABLE1;
+ else if (cut_ver == PRR_PRODUCT_11)
+ index = OLD_API_TABLE1;
+ else if (cut_ver == PRR_PRODUCT_20)
+ index = OLD_API_TABLE2;
+ else
+ /* Later than H3 Ver.2.0 */
+ index = NEW_API_TABLE;
+ break;
+ case PRR_PRODUCT_M3:
+ if (cut_ver == PRR_PRODUCT_10)
+ index = OLD_API_TABLE3;
+ else
+ /* M3 Ver.1.1 or later */
+ index = NEW_API_TABLE;
+ break;
+ case PRR_PRODUCT_V3M:
+ if (cut_ver == PRR_PRODUCT_10)
+ /* V3M WS1.0 */
+ index = NEW_API_TABLE2;
+ else
+ /* V3M WS2.0 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, D3, V3M WS2.0 */
+ 0xEB110128U, /* V3M WS1.0 */
+ };
+ 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, D3, V3M WS2.0 */
+ 0xEB1103A4U, /* V3M WS1.0 */
+ };
+ 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);
+}