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5#include <common.h>
6#include <log.h>
7#include <malloc.h>
8#include <config.h>
9#include <errno.h>
10#include <asm/cache.h>
11#include <asm/global_data.h>
12#include <asm/system.h>
13#include <asm/types.h>
14#include <asm/arch/soc.h>
15#ifdef CONFIG_FSL_LSCH3
16#include <asm/arch/immap_lsch3.h>
17#elif defined(CONFIG_FSL_LSCH2)
18#include <asm/arch/immap_lsch2.h>
19#endif
20#if CONFIG_IS_ENABLED(ARMV8_SEC_FIRMWARE_SUPPORT)
21#include <asm/armv8/sec_firmware.h>
22#endif
23#ifdef CONFIG_CHAIN_OF_TRUST
24#include <fsl_validate.h>
25#endif
26
27#ifdef CONFIG_SYS_LS_PPA_FW_IN_NAND
28#include <nand.h>
29#elif defined(CONFIG_SYS_LS_PPA_FW_IN_MMC)
30#include <mmc.h>
31#endif
32
33DECLARE_GLOBAL_DATA_PTR;
34
35int ppa_init(void)
36{
37 unsigned int el = current_el();
38 void *ppa_fit_addr;
39 u32 *boot_loc_ptr_l, *boot_loc_ptr_h;
40 u32 *loadable_l, *loadable_h;
41 int ret;
42
43#ifdef CONFIG_CHAIN_OF_TRUST
44 uintptr_t ppa_esbc_hdr = 0;
45 uintptr_t ppa_img_addr = 0;
46#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
47 defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
48 void *ppa_hdr_ddr;
49#endif
50#endif
51
52
53 if (el < 3) {
54 debug("Skipping PPA init, running at EL%d\n", el);
55 return 0;
56 }
57
58#ifdef CONFIG_SYS_LS_PPA_FW_IN_XIP
59 ppa_fit_addr = (void *)CONFIG_SYS_LS_PPA_FW_ADDR;
60 debug("%s: PPA image load from XIP\n", __func__);
61#ifdef CONFIG_CHAIN_OF_TRUST
62 ppa_esbc_hdr = CONFIG_SYS_LS_PPA_ESBC_ADDR;
63#endif
64#else
65 size_t fw_length, fdt_header_len = sizeof(struct fdt_header);
66
67
68#ifdef CONFIG_SYS_LS_PPA_FW_IN_MMC
69 struct mmc *mmc;
70 int dev = CONFIG_SYS_MMC_ENV_DEV;
71 struct fdt_header *fitp;
72 u32 cnt;
73 u32 blk;
74
75 debug("%s: PPA image load from eMMC/SD\n", __func__);
76
77 ret = mmc_initialize(gd->bd);
78 if (ret) {
79 printf("%s: mmc_initialize() failed\n", __func__);
80 return ret;
81 }
82 mmc = find_mmc_device(dev);
83 if (!mmc) {
84 printf("PPA: MMC cannot find device for PPA firmware\n");
85 return -ENODEV;
86 }
87
88 ret = mmc_init(mmc);
89 if (ret) {
90 printf("%s: mmc_init() failed\n", __func__);
91 return ret;
92 }
93
94 fitp = malloc(roundup(fdt_header_len, 512));
95 if (!fitp) {
96 printf("PPA: malloc failed for FIT header(size 0x%zx)\n",
97 roundup(fdt_header_len, 512));
98 return -ENOMEM;
99 }
100
101 blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512;
102 cnt = DIV_ROUND_UP(fdt_header_len, 512);
103 debug("%s: MMC read PPA FIT header: dev # %u, block # %u, count %u\n",
104 __func__, dev, blk, cnt);
105 ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, fitp);
106 if (ret != cnt) {
107 free(fitp);
108 printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n",
109 CONFIG_SYS_LS_PPA_FW_ADDR);
110 return -EIO;
111 }
112
113 ret = fdt_check_header(fitp);
114 if (ret) {
115 free(fitp);
116 printf("%s: fdt_check_header() failed\n", __func__);
117 return ret;
118 }
119
120#ifdef CONFIG_CHAIN_OF_TRUST
121 ppa_hdr_ddr = malloc(CONFIG_LS_PPA_ESBC_HDR_SIZE);
122 if (!ppa_hdr_ddr) {
123 printf("PPA: malloc failed for PPA header\n");
124 return -ENOMEM;
125 }
126
127 blk = CONFIG_SYS_LS_PPA_ESBC_ADDR >> 9;
128 cnt = DIV_ROUND_UP(CONFIG_LS_PPA_ESBC_HDR_SIZE, 512);
129 ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, ppa_hdr_ddr);
130 if (ret != cnt) {
131 free(ppa_hdr_ddr);
132 printf("MMC/SD read of PPA header failed\n");
133 return -EIO;
134 }
135 debug("Read PPA header to 0x%p\n", ppa_hdr_ddr);
136
137 ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr;
138#endif
139
140 fw_length = fdt_totalsize(fitp);
141 free(fitp);
142
143 fw_length = roundup(fw_length, 512);
144 ppa_fit_addr = malloc(fw_length);
145 if (!ppa_fit_addr) {
146 printf("PPA: malloc failed for PPA image(size 0x%zx)\n",
147 fw_length);
148 return -ENOMEM;
149 }
150
151 blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512;
152 cnt = DIV_ROUND_UP(fw_length, 512);
153 debug("%s: MMC read PPA FIT image: dev # %u, block # %u, count %u\n",
154 __func__, dev, blk, cnt);
155 ret = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, ppa_fit_addr);
156 if (ret != cnt) {
157 free(ppa_fit_addr);
158 printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n",
159 CONFIG_SYS_LS_PPA_FW_ADDR);
160 return -EIO;
161 }
162
163#elif defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
164 struct fdt_header fit;
165
166 debug("%s: PPA image load from NAND\n", __func__);
167
168 nand_init();
169 ret = nand_read(get_nand_dev_by_index(0),
170 (loff_t)CONFIG_SYS_LS_PPA_FW_ADDR,
171 &fdt_header_len, (u_char *)&fit);
172 if (ret == -EUCLEAN) {
173 printf("NAND read of PPA FIT header at offset 0x%x failed\n",
174 CONFIG_SYS_LS_PPA_FW_ADDR);
175 return -EIO;
176 }
177
178 ret = fdt_check_header(&fit);
179 if (ret) {
180 printf("%s: fdt_check_header() failed\n", __func__);
181 return ret;
182 }
183
184#ifdef CONFIG_CHAIN_OF_TRUST
185 ppa_hdr_ddr = malloc(CONFIG_LS_PPA_ESBC_HDR_SIZE);
186 if (!ppa_hdr_ddr) {
187 printf("PPA: malloc failed for PPA header\n");
188 return -ENOMEM;
189 }
190
191 fw_length = CONFIG_LS_PPA_ESBC_HDR_SIZE;
192
193 ret = nand_read(get_nand_dev_by_index(0),
194 (loff_t)CONFIG_SYS_LS_PPA_ESBC_ADDR,
195 &fw_length, (u_char *)ppa_hdr_ddr);
196 if (ret == -EUCLEAN) {
197 free(ppa_hdr_ddr);
198 printf("NAND read of PPA firmware at offset 0x%x failed\n",
199 CONFIG_SYS_LS_PPA_FW_ADDR);
200 return -EIO;
201 }
202 debug("Read PPA header to 0x%p\n", ppa_hdr_ddr);
203
204 ppa_esbc_hdr = (uintptr_t)ppa_hdr_ddr;
205#endif
206
207 fw_length = fdt_totalsize(&fit);
208
209 ppa_fit_addr = malloc(fw_length);
210 if (!ppa_fit_addr) {
211 printf("PPA: malloc failed for PPA image(size 0x%zx)\n",
212 fw_length);
213 return -ENOMEM;
214 }
215
216 ret = nand_read(get_nand_dev_by_index(0),
217 (loff_t)CONFIG_SYS_LS_PPA_FW_ADDR,
218 &fw_length, (u_char *)ppa_fit_addr);
219 if (ret == -EUCLEAN) {
220 free(ppa_fit_addr);
221 printf("NAND read of PPA firmware at offset 0x%x failed\n",
222 CONFIG_SYS_LS_PPA_FW_ADDR);
223 return -EIO;
224 }
225#else
226#error "No CONFIG_SYS_LS_PPA_FW_IN_xxx defined"
227#endif
228
229#endif
230
231#ifdef CONFIG_CHAIN_OF_TRUST
232 ppa_img_addr = (uintptr_t)ppa_fit_addr;
233 if (fsl_check_boot_mode_secure() != 0) {
234
235
236
237
238
239
240
241 ret = fsl_secboot_validate(ppa_esbc_hdr,
242 PPA_KEY_HASH,
243 &ppa_img_addr);
244 if (ret != 0)
245 printf("SEC firmware(s) validation failed\n");
246 else
247 printf("SEC firmware(s) validation Successful\n");
248 }
249#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
250 defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
251 free(ppa_hdr_ddr);
252#endif
253#endif
254
255#ifdef CONFIG_FSL_LSCH3
256 struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
257 boot_loc_ptr_l = &gur->bootlocptrl;
258 boot_loc_ptr_h = &gur->bootlocptrh;
259
260
261 loadable_l = &gur->scratchrw[4];
262 loadable_h = &gur->scratchrw[5];
263#elif defined(CONFIG_FSL_LSCH2)
264 struct ccsr_scfg __iomem *scfg = (void *)(CONFIG_SYS_FSL_SCFG_ADDR);
265 boot_loc_ptr_l = &scfg->scratchrw[1];
266 boot_loc_ptr_h = &scfg->scratchrw[0];
267
268
269 loadable_l = &scfg->scratchrw[2];
270 loadable_h = &scfg->scratchrw[3];
271#endif
272
273 debug("fsl-ppa: boot_loc_ptr_l = 0x%p, boot_loc_ptr_h =0x%p\n",
274 boot_loc_ptr_l, boot_loc_ptr_h);
275 ret = sec_firmware_init(ppa_fit_addr, boot_loc_ptr_l, boot_loc_ptr_h,
276 loadable_l, loadable_h);
277
278#if defined(CONFIG_SYS_LS_PPA_FW_IN_MMC) || \
279 defined(CONFIG_SYS_LS_PPA_FW_IN_NAND)
280 free(ppa_fit_addr);
281#endif
282
283 return ret;
284}
285
