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git01.mediatek.com / filogic / atf / 351ba731993f5d088ff4be9224cb0c92c40fdda6 / . / drivers / renesas / rcar / auth / auth_mod.c
blob: 04ed2792877e03edd922267340bcd6f48d2afb5e [file] [log] [blame]
Jorge Ramirez-Ortiz3f464d92018-09-23 09:38:24 +0200[diff] [blame]1/*
2 * Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights
3 * reserved.
4 *
5 * SPDX-License-Identifier: BSD-3-Clause
6 */
7
8#include <arch_helpers.h>
9#include <debug.h>
10#include <mmio.h>
11#include <platform.h>
12#include <platform_def.h>
13#include <stddef.h>
14
15#include "rom_api.h"
16
17typedef int32_t(*secure_boot_api_f) (uint32_t a, uint32_t b, void *c);
18extern int32_t rcar_get_certificate(const int32_t name, uint32_t *cert_addr);
19
20#define RCAR_IMAGE_ID_MAX (10)
21#define RCAR_CERT_MAGIC_NUM (0xE291F358U)
22#define RCAR_BOOT_KEY_CERT (0xE6300C00U)
23#define RCAR_BOOT_KEY_CERT_NEW (0xE6300F00U)
24#define RST_BASE (0xE6160000U)
25#define RST_MODEMR (RST_BASE + 0x0060U)
26#define MFISSOFTMDR (0xE6260600U)
27#define MODEMR_MD5_MASK (0x00000020U)
28#define MODEMR_MD5_SHIFT (5U)
29#define SOFTMD_BOOTMODE_MASK (0x00000001U)
30#define SOFTMD_NORMALBOOT (0x1U)
31
32static secure_boot_api_f secure_boot_api;
33
34int auth_mod_get_parent_id(unsigned int img_id, unsigned int *parent_id)
35{
36 return 1;
37}
38
39int auth_mod_verify_img(unsigned int img_id, void *ptr, unsigned int len)
40{
41 int32_t ret = 0, index = 0;
42 uint32_t cert_addr = 0U;
43 static const struct img_to_cert_t {
44 uint32_t id;
45 int32_t cert;
46 const char *name;
47 } image[RCAR_IMAGE_ID_MAX] = {
48 { BL31_IMAGE_ID, SOC_FW_CONTENT_CERT_ID, "BL31" },
49 { BL32_IMAGE_ID, TRUSTED_OS_FW_CONTENT_CERT_ID, "BL32" },
50 { BL33_IMAGE_ID, NON_TRUSTED_FW_CONTENT_CERT_ID, "BL33" },
51 { BL332_IMAGE_ID, BL332_CERT_ID, "BL332" },
52 { BL333_IMAGE_ID, BL333_CERT_ID, "BL333" },
53 { BL334_IMAGE_ID, BL334_CERT_ID, "BL334" },
54 { BL335_IMAGE_ID, BL335_CERT_ID, "BL335" },
55 { BL336_IMAGE_ID, BL336_CERT_ID, "BL336" },
56 { BL337_IMAGE_ID, BL337_CERT_ID, "BL337" },
57 { BL338_IMAGE_ID, BL338_CERT_ID, "BL338" },
58 };
59
60#if IMAGE_BL2
61 switch (img_id) {
62 case TRUSTED_KEY_CERT_ID:
63 case SOC_FW_KEY_CERT_ID:
64 case TRUSTED_OS_FW_KEY_CERT_ID:
65 case NON_TRUSTED_FW_KEY_CERT_ID:
66 case BL332_KEY_CERT_ID:
67 case BL333_KEY_CERT_ID:
68 case BL334_KEY_CERT_ID:
69 case BL335_KEY_CERT_ID:
70 case BL336_KEY_CERT_ID:
71 case BL337_KEY_CERT_ID:
72 case BL338_KEY_CERT_ID:
73 case SOC_FW_CONTENT_CERT_ID:
74 case TRUSTED_OS_FW_CONTENT_CERT_ID:
75 case NON_TRUSTED_FW_CONTENT_CERT_ID:
76 case BL332_CERT_ID:
77 case BL333_CERT_ID:
78 case BL334_CERT_ID:
79 case BL335_CERT_ID:
80 case BL336_CERT_ID:
81 case BL337_CERT_ID:
82 case BL338_CERT_ID:
83 return ret;
84 case BL31_IMAGE_ID:
85 case BL32_IMAGE_ID:
86 case BL33_IMAGE_ID:
87 case BL332_IMAGE_ID:
88 case BL333_IMAGE_ID:
89 case BL334_IMAGE_ID:
90 case BL335_IMAGE_ID:
91 case BL336_IMAGE_ID:
92 case BL337_IMAGE_ID:
93 case BL338_IMAGE_ID:
94 goto verify_image;
95 default:
96 return -1;
97 }
98
99verify_image:
100 for (index = 0; index < RCAR_IMAGE_ID_MAX; index++) {
101 if (img_id != image[index].id)
102 continue;
103
104 ret = rcar_get_certificate(image[index].cert, &cert_addr);
105 break;
106 }
107
108 if (ret || (index == RCAR_IMAGE_ID_MAX)) {
109 ERROR("Verification Failed for image id = %d\n", img_id);
110 return ret;
111 }
112#if RCAR_BL2_DCACHE == 1
113 /* clean and disable */
114 write_sctlr_el1(read_sctlr_el1() & ~SCTLR_C_BIT);
115 dcsw_op_all(DCCISW);
116#endif
117 ret = (mmio_read_32(RCAR_BOOT_KEY_CERT_NEW) == RCAR_CERT_MAGIC_NUM) ?
118 secure_boot_api(RCAR_BOOT_KEY_CERT_NEW, cert_addr, NULL) :
119 secure_boot_api(RCAR_BOOT_KEY_CERT, cert_addr, NULL);
120 if (ret)
121 ERROR("Verification Failed 0x%x, %s\n", ret, image[index].name);
122
123#if RCAR_BL2_DCACHE == 1
124 /* enable */
125 write_sctlr_el1(read_sctlr_el1() | SCTLR_C_BIT);
126#endif
127
128#endif
129 return ret;
130}
131
132static int32_t normal_boot_verify(uint32_t a, uint32_t b, void *c)
133{
134 return 0;
135}
136
137void auth_mod_init(void)
138{
139#if RCAR_SECURE_BOOT
140 uint32_t soft_md = mmio_read_32(MFISSOFTMDR) & SOFTMD_BOOTMODE_MASK;
141 uint32_t md = mmio_read_32(RST_MODEMR) & MODEMR_MD5_MASK;
142 uint32_t lcs, ret;
143
144 secure_boot_api = (secure_boot_api_f) &rcar_rom_secure_boot_api;
145
146 ret = rcar_rom_get_lcs(&lcs);
147 if (ret) {
148 ERROR("BL2: Failed to get the LCS. (%d)\n", ret);
149 panic();
150 }
151
152 switch (lcs) {
153 case LCS_SE:
154 if (soft_md == SOFTMD_NORMALBOOT)
155 secure_boot_api = &normal_boot_verify;
156 break;
157 case LCS_SD:
158 secure_boot_api = &normal_boot_verify;
159 break;
160 default:
161 if (md >> MODEMR_MD5_SHIFT)
162 secure_boot_api = &normal_boot_verify;
163 }
164
165 NOTICE("BL2: %s boot\n",
166 secure_boot_api == &normal_boot_verify ? "Normal" : "Secure");
167#else
168 NOTICE("BL2: Normal boot\n");
169 secure_boot_api = &normal_boot_verify;
170#endif
171}