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env: Drop environment.h header file where not needed
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83d290c5 1// SPDX-License-Identifier: GPL-2.0+
8c66497e 2/*
ea882baf 3 * (C) Copyright 2000-2010
8c66497e
HS
4 * Wolfgang Denk, DENX Software Engineering, [email protected].
5 *
6 * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
7 * Andreas Heppel <[email protected]>
8 *
9 * (C) Copyright 2008 Atmel Corporation
8c66497e
HS
10 */
11#include <common.h>
9d922450 12#include <dm.h>
0ac7d722 13#include <env.h>
8c66497e 14#include <environment.h>
5b3375ac 15#include <malloc.h>
843c9e87 16#include <spi.h>
8c66497e 17#include <spi_flash.h>
ea882baf
WD
18#include <search.h>
19#include <errno.h>
19c31285 20#include <dm/device-internal.h>
8c66497e 21
4415f1d1
SG
22#ifndef CONFIG_SPL_BUILD
23#define CMD_SAVEENV
b500c92b 24#define INITENV
4415f1d1
SG
25#endif
26
7319bcaf 27#ifdef CONFIG_ENV_OFFSET_REDUND
4415f1d1 28#ifdef CMD_SAVEENV
eb58a7fc
IG
29static ulong env_offset = CONFIG_ENV_OFFSET;
30static ulong env_new_offset = CONFIG_ENV_OFFSET_REDUND;
4415f1d1 31#endif
7319bcaf 32
a3110f01 33#endif /* CONFIG_ENV_OFFSET_REDUND */
7319bcaf 34
8c66497e
HS
35DECLARE_GLOBAL_DATA_PTR;
36
8c66497e
HS
37static struct spi_flash *env_flash;
38
afa81a77 39static int setup_flash_device(void)
7319bcaf 40{
19c31285
GQ
41#ifdef CONFIG_DM_SPI_FLASH
42 struct udevice *new;
afa81a77 43 int ret;
19c31285 44
96907c0f 45 /* speed and mode will be read from DT */
19c31285 46 ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
25a17652
KP
47 CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE,
48 &new);
19c31285 49 if (ret) {
0ac7d722 50 env_set_default("spi_flash_probe_bus_cs() failed", 0);
c5951991 51 return ret;
19c31285
GQ
52 }
53
54 env_flash = dev_get_uclass_priv(new);
55#else
7319bcaf
WW
56
57 if (!env_flash) {
a3110f01
SB
58 env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
59 CONFIG_ENV_SPI_CS,
60 CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
61 if (!env_flash) {
0ac7d722 62 env_set_default("spi_flash_probe() failed", 0);
c5951991 63 return -EIO;
a3110f01 64 }
7319bcaf 65 }
19c31285 66#endif
afa81a77
AF
67 return 0;
68}
69
70#if defined(CONFIG_ENV_OFFSET_REDUND)
4415f1d1 71#ifdef CMD_SAVEENV
e5bce247 72static int env_sf_save(void)
afa81a77
AF
73{
74 env_t env_new;
d3716dd6 75 char *saved_buffer = NULL, flag = ENV_REDUND_OBSOLETE;
0b2e5bbe 76 u32 saved_size, saved_offset, sector;
afa81a77
AF
77 int ret;
78
79 ret = setup_flash_device();
80 if (ret)
81 return ret;
7319bcaf 82
7ce1526e
MV
83 ret = env_export(&env_new);
84 if (ret)
c5951991 85 return -EIO;
d3716dd6 86 env_new.flags = ENV_REDUND_ACTIVE;
ea882baf 87
203e94f6 88 if (gd->env_valid == ENV_VALID) {
a3110f01
SB
89 env_new_offset = CONFIG_ENV_OFFSET_REDUND;
90 env_offset = CONFIG_ENV_OFFSET;
91 } else {
92 env_new_offset = CONFIG_ENV_OFFSET;
93 env_offset = CONFIG_ENV_OFFSET_REDUND;
94 }
95
7319bcaf
WW
96 /* Is the sector larger than the env (i.e. embedded) */
97 if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
98 saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
99 saved_offset = env_new_offset + CONFIG_ENV_SIZE;
7dd01744 100 saved_buffer = memalign(ARCH_DMA_MINALIGN, saved_size);
7319bcaf 101 if (!saved_buffer) {
c5951991 102 ret = -ENOMEM;
7319bcaf
WW
103 goto done;
104 }
9ba5e5bc
HS
105 ret = spi_flash_read(env_flash, saved_offset,
106 saved_size, saved_buffer);
7319bcaf
WW
107 if (ret)
108 goto done;
109 }
110
0b2e5bbe 111 sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, CONFIG_ENV_SECT_SIZE);
7319bcaf
WW
112
113 puts("Erasing SPI flash...");
114 ret = spi_flash_erase(env_flash, env_new_offset,
115 sector * CONFIG_ENV_SECT_SIZE);
116 if (ret)
117 goto done;
118
119 puts("Writing to SPI flash...");
7319bcaf 120
a3110f01 121 ret = spi_flash_write(env_flash, env_new_offset,
cd0f4fa1 122 CONFIG_ENV_SIZE, &env_new);
7319bcaf
WW
123 if (ret)
124 goto done;
125
126 if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
127 ret = spi_flash_write(env_flash, saved_offset,
128 saved_size, saved_buffer);
129 if (ret)
130 goto done;
131 }
132
eb58a7fc 133 ret = spi_flash_write(env_flash, env_offset + offsetof(env_t, flags),
cd0f4fa1 134 sizeof(env_new.flags), &flag);
a3110f01
SB
135 if (ret)
136 goto done;
7319bcaf 137
7319bcaf
WW
138 puts("done\n");
139
203e94f6 140 gd->env_valid = gd->env_valid == ENV_REDUND ? ENV_VALID : ENV_REDUND;
a3110f01 141
2dc55d9e 142 printf("Valid environment: %d\n", (int)gd->env_valid);
a3110f01 143
7319bcaf
WW
144 done:
145 if (saved_buffer)
146 free(saved_buffer);
eb58a7fc 147
7319bcaf
WW
148 return ret;
149}
4415f1d1 150#endif /* CMD_SAVEENV */
7319bcaf 151
c5951991 152static int env_sf_load(void)
7319bcaf
WW
153{
154 int ret;
80719938
SG
155 int read1_fail, read2_fail;
156 env_t *tmp_env1, *tmp_env2;
7319bcaf 157
7dd01744
RB
158 tmp_env1 = (env_t *)memalign(ARCH_DMA_MINALIGN,
159 CONFIG_ENV_SIZE);
160 tmp_env2 = (env_t *)memalign(ARCH_DMA_MINALIGN,
161 CONFIG_ENV_SIZE);
ea882baf 162 if (!tmp_env1 || !tmp_env2) {
0ac7d722 163 env_set_default("malloc() failed", 0);
c5951991 164 ret = -EIO;
2dc55d9e 165 goto out;
7319bcaf
WW
166 }
167
8fee8845
AF
168 ret = setup_flash_device();
169 if (ret)
2dc55d9e 170 goto out;
7319bcaf 171
9ba5e5bc
HS
172 read1_fail = spi_flash_read(env_flash, CONFIG_ENV_OFFSET,
173 CONFIG_ENV_SIZE, tmp_env1);
174 read2_fail = spi_flash_read(env_flash, CONFIG_ENV_OFFSET_REDUND,
175 CONFIG_ENV_SIZE, tmp_env2);
ea882baf 176
80719938
SG
177 ret = env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
178 read2_fail);
7319bcaf 179
7319bcaf
WW
180 spi_flash_free(env_flash);
181 env_flash = NULL;
7319bcaf 182out:
ea882baf
WD
183 free(tmp_env1);
184 free(tmp_env2);
c5951991
SG
185
186 return ret;
7319bcaf
WW
187}
188#else
4415f1d1 189#ifdef CMD_SAVEENV
e5bce247 190static int env_sf_save(void)
8c66497e 191{
0b2e5bbe 192 u32 saved_size, saved_offset, sector;
7ce1526e 193 char *saved_buffer = NULL;
eb58a7fc 194 int ret = 1;
cd0f4fa1 195 env_t env_new;
19c31285 196
afa81a77
AF
197 ret = setup_flash_device();
198 if (ret)
199 return ret;
8c66497e 200
5b3375ac
MF
201 /* Is the sector larger than the env (i.e. embedded) */
202 if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
203 saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
204 saved_offset = CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE;
205 saved_buffer = malloc(saved_size);
eb58a7fc 206 if (!saved_buffer)
5b3375ac 207 goto done;
eb58a7fc 208
9ba5e5bc
HS
209 ret = spi_flash_read(env_flash, saved_offset,
210 saved_size, saved_buffer);
5b3375ac
MF
211 if (ret)
212 goto done;
213 }
214
7ce1526e
MV
215 ret = env_export(&env_new);
216 if (ret)
a3110f01 217 goto done;
a3110f01 218
0b2e5bbe
AF
219 sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, CONFIG_ENV_SECT_SIZE);
220
8c66497e 221 puts("Erasing SPI flash...");
a3110f01
SB
222 ret = spi_flash_erase(env_flash, CONFIG_ENV_OFFSET,
223 sector * CONFIG_ENV_SECT_SIZE);
5b3375ac
MF
224 if (ret)
225 goto done;
8c66497e
HS
226
227 puts("Writing to SPI flash...");
a3110f01 228 ret = spi_flash_write(env_flash, CONFIG_ENV_OFFSET,
cd0f4fa1 229 CONFIG_ENV_SIZE, &env_new);
5b3375ac
MF
230 if (ret)
231 goto done;
8c66497e 232
5b3375ac 233 if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
a3110f01
SB
234 ret = spi_flash_write(env_flash, saved_offset,
235 saved_size, saved_buffer);
5b3375ac
MF
236 if (ret)
237 goto done;
238 }
239
240 ret = 0;
8c66497e 241 puts("done\n");
5b3375ac
MF
242
243 done:
244 if (saved_buffer)
245 free(saved_buffer);
eb58a7fc 246
5b3375ac 247 return ret;
8c66497e 248}
4415f1d1 249#endif /* CMD_SAVEENV */
8c66497e 250
c5951991 251static int env_sf_load(void)
8c66497e
HS
252{
253 int ret;
5a89fa92 254 char *buf = NULL;
8c66497e 255
7dd01744 256 buf = (char *)memalign(ARCH_DMA_MINALIGN, CONFIG_ENV_SIZE);
c041c60c 257 if (!buf) {
0ac7d722 258 env_set_default("malloc() failed", 0);
c5951991 259 return -EIO;
ea882baf 260 }
8c66497e 261
c041c60c
AF
262 ret = setup_flash_device();
263 if (ret)
264 goto out;
265
9ba5e5bc
HS
266 ret = spi_flash_read(env_flash,
267 CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf);
ea882baf 268 if (ret) {
0ac7d722 269 env_set_default("spi_flash_read() failed", 0);
c041c60c 270 goto err_read;
ea882baf 271 }
8c66497e 272
ea882baf 273 ret = env_import(buf, 1);
42a1820b 274 if (!ret)
203e94f6 275 gd->env_valid = ENV_VALID;
c041c60c
AF
276
277err_read:
8c66497e
HS
278 spi_flash_free(env_flash);
279 env_flash = NULL;
c041c60c
AF
280out:
281 free(buf);
c5951991
SG
282
283 return ret;
8c66497e 284}
7319bcaf 285#endif
8c66497e 286
119c01c2
RB
287#ifdef CONFIG_ENV_ADDR
288__weak void *env_sf_get_env_addr(void)
289{
290 return (void *)CONFIG_ENV_ADDR;
291}
292#endif
293
b500c92b
AK
294#if defined(INITENV) && defined(CONFIG_ENV_ADDR)
295static int env_sf_init(void)
296{
119c01c2 297 env_t *env_ptr = (env_t *)env_sf_get_env_addr();
b500c92b
AK
298
299 if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
300 gd->env_addr = (ulong)&(env_ptr->data);
301 gd->env_valid = 1;
302 } else {
303 gd->env_addr = (ulong)&default_environment[0];
304 gd->env_valid = 1;
305 }
306
307 return 0;
308}
309#endif
310
4415f1d1
SG
311U_BOOT_ENV_LOCATION(sf) = {
312 .location = ENVL_SPI_FLASH,
ac358beb 313 ENV_NAME("SPI Flash")
e5bce247 314 .load = env_sf_load,
4415f1d1 315#ifdef CMD_SAVEENV
e5bce247 316 .save = env_save_ptr(env_sf_save),
4415f1d1 317#endif
b500c92b
AK
318#if defined(INITENV) && defined(CONFIG_ENV_ADDR)
319 .init = env_sf_init,
320#endif
4415f1d1 321};
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