| Jorge Ramirez-Ortiz | 83b9d1a | 2018-09-23 09:41:21 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015-2018, Renesas Electronics Corporation. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <mmio.h> |
| 8 | #include <stdint.h> |
| 9 | #include "rcar_def.h" |
| 10 | #include "rom_api.h" |
| 11 | |
| 12 | typedef uint32_t(*rom_secure_boot_api_f) (uint32_t *key, uint32_t *cert, |
| 13 | rom_read_flash_f pFuncReadFlash); |
| 14 | |
| 15 | typedef uint32_t(*rom_get_lcs_api_f) (uint32_t *lcs); |
| 16 | |
| 17 | #define OLD_API_TABLE1 (0U) /* H3 Ver.1.0/Ver.1.1 */ |
| 18 | #define OLD_API_TABLE2 (1U) /* H3 Ver.2.0 */ |
| 19 | #define OLD_API_TABLE3 (2U) /* M3 Ver.1.0 */ |
| 20 | #define NEW_API_TABLE (3U) /* H3 Ver.3.0, M3 Ver.1.1 or later, M3N, E3 */ |
| 21 | #define API_TABLE_MAX (4U) /* table max */ |
| 22 | /* Later than H3 Ver.2.0 */ |
| 23 | |
| 24 | static uint32_t get_table_index(void) |
| 25 | { |
| 26 | uint32_t product; |
| 27 | uint32_t cut_ver; |
| 28 | uint32_t index; |
| 29 | |
| 30 | product = mmio_read_32(RCAR_PRR) & RCAR_PRODUCT_MASK; |
| 31 | cut_ver = mmio_read_32(RCAR_PRR) & RCAR_CUT_MASK; |
| 32 | |
| 33 | switch (product) { |
| 34 | case RCAR_PRODUCT_H3: |
| 35 | if (cut_ver == RCAR_CUT_VER10) |
| 36 | index = OLD_API_TABLE1; |
| 37 | else if (cut_ver == RCAR_CUT_VER11) |
| 38 | index = OLD_API_TABLE1; |
| 39 | else if (cut_ver == RCAR_CUT_VER20) |
| 40 | index = OLD_API_TABLE2; |
| 41 | else |
| 42 | /* Later than H3 Ver.2.0 */ |
| 43 | index = NEW_API_TABLE; |
| 44 | break; |
| 45 | case RCAR_PRODUCT_M3: |
| 46 | if (cut_ver == RCAR_CUT_VER10) |
| 47 | index = OLD_API_TABLE3; |
| 48 | else |
| 49 | /* M3 Ver.1.1 or later */ |
| 50 | index = NEW_API_TABLE; |
| 51 | break; |
| 52 | default: |
| 53 | index = NEW_API_TABLE; |
| 54 | break; |
| 55 | } |
| 56 | |
| 57 | return index; |
| 58 | } |
| 59 | |
| 60 | uint32_t rcar_rom_secure_boot_api(uint32_t *key, uint32_t *cert, |
| 61 | rom_read_flash_f read_flash) |
| 62 | { |
| 63 | static const uintptr_t rom_api_table[API_TABLE_MAX] = { |
| 64 | 0xEB10DD64U, /* H3 Ver.1.0/Ver.1.1 */ |
| 65 | 0xEB116ED4U, /* H3 Ver.2.0 */ |
| 66 | 0xEB1102FCU, /* M3 Ver.1.0 */ |
| 67 | 0xEB100180U /* H3 Ver.3.0, M3 Ver.1.1 or later, M3N, E3 */ |
| 68 | }; |
| 69 | rom_secure_boot_api_f secure_boot; |
| 70 | uint32_t index; |
| 71 | |
| 72 | index = get_table_index(); |
| 73 | secure_boot = (rom_secure_boot_api_f) rom_api_table[index]; |
| 74 | |
| 75 | return secure_boot(key, cert, read_flash); |
| 76 | } |
| 77 | |
| 78 | uint32_t rcar_rom_get_lcs(uint32_t *lcs) |
| 79 | { |
| 80 | static const uintptr_t rom_get_lcs_table[API_TABLE_MAX] = { |
| 81 | 0xEB10DFE0U, /* H3 Ver.1.0/Ver.1.1 */ |
| 82 | 0xEB117150U, /* H3 Ver.2.0 */ |
| 83 | 0xEB110578U, /* M3 Ver.1.0 */ |
| 84 | 0xEB10018CU /* H3 Ver.3.0, M3 Ver.1.1 or later, M3N, E3 */ |
| 85 | }; |
| 86 | rom_get_lcs_api_f get_lcs; |
| 87 | uint32_t index; |
| 88 | |
| 89 | index = get_table_index(); |
| 90 | get_lcs = (rom_get_lcs_api_f) rom_get_lcs_table[index]; |
| 91 | |
| 92 | return get_lcs(lcs); |
| 93 | } |