1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
|
/*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
*
* Aneesh V <aneesh@ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <spl.h>
#include <linux/compiler.h>
#include <errno.h>
#include <asm/u-boot.h>
#include <errno.h>
#include <mmc.h>
#include <image.h>
DECLARE_GLOBAL_DATA_PTR;
static int mmc_load_legacy(struct mmc *mmc, ulong sector,
struct image_header *header)
{
u32 image_size_sectors;
unsigned long count;
int ret;
ret = spl_parse_image_header(header);
if (ret)
return ret;
/* convert size to sectors - round up */
image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) /
mmc->read_bl_len;
/* Read the header too to avoid extra memcpy */
count = blk_dread(mmc_get_blk_desc(mmc), sector, image_size_sectors,
(void *)(ulong)spl_image.load_addr);
debug("read %x sectors to %x\n", image_size_sectors,
spl_image.load_addr);
if (count != image_size_sectors)
return -EIO;
return 0;
}
static ulong h_spl_load_read(struct spl_load_info *load, ulong sector,
ulong count, void *buf)
{
struct mmc *mmc = load->dev;
return blk_dread(mmc_get_blk_desc(mmc), sector, count, buf);
}
static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
{
unsigned long count;
struct image_header *header;
int ret = 0;
header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
sizeof(struct image_header));
/* read image header to find the image size & load address */
count = blk_dread(mmc_get_blk_desc(mmc), sector, 1, header);
debug("hdr read sector %lx, count=%lu\n", sector, count);
if (count == 0) {
ret = -EIO;
goto end;
}
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
image_get_magic(header) == FDT_MAGIC) {
struct spl_load_info load;
debug("Found FIT\n");
load.dev = mmc;
load.priv = NULL;
load.filename = NULL;
load.bl_len = mmc->read_bl_len;
load.read = h_spl_load_read;
ret = spl_load_simple_fit(&load, sector, header);
} else {
ret = mmc_load_legacy(mmc, sector, header);
}
end:
if (ret) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("mmc_load_image_raw_sector: mmc block read error\n");
#endif
return -1;
}
return 0;
}
int spl_mmc_get_device_index(u32 boot_device)
{
switch (boot_device) {
case BOOT_DEVICE_MMC1:
return 0;
case BOOT_DEVICE_MMC2:
case BOOT_DEVICE_MMC2_2:
return 1;
}
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
printf("spl: unsupported mmc boot device.\n");
#endif
return -ENODEV;
}
static int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device)
{
#ifdef CONFIG_DM_MMC
struct udevice *dev;
#endif
int err, mmc_dev;
mmc_dev = spl_mmc_get_device_index(boot_device);
if (mmc_dev < 0)
return mmc_dev;
err = mmc_initialize(NULL);
if (err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
printf("spl: could not initialize mmc. error: %d\n", err);
#endif
return err;
}
#ifdef CONFIG_DM_MMC
err = uclass_get_device(UCLASS_MMC, mmc_dev, &dev);
if (!err)
*mmcp = mmc_get_mmc_dev(dev);
#else
*mmcp = find_mmc_device(mmc_dev);
err = *mmcp ? 0 : -ENODEV;
#endif
if (err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
printf("spl: could not find mmc device. error: %d\n", err);
#endif
return err;
}
return 0;
}
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
{
disk_partition_t info;
int err;
err = part_get_info(&mmc->block_dev, partition, &info);
if (err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("spl: partition error\n");
#endif
return -1;
}
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
return mmc_load_image_raw_sector(mmc, info.start +
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
#else
return mmc_load_image_raw_sector(mmc, info.start);
#endif
}
#else
#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION -1
static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
{
return -ENOSYS;
}
#endif
#ifdef CONFIG_SPL_OS_BOOT
static int mmc_load_image_raw_os(struct mmc *mmc)
{
unsigned long count;
int ret;
count = blk_dread(mmc_get_blk_desc(mmc),
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
(void *) CONFIG_SYS_SPL_ARGS_ADDR);
if (count == 0) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("mmc_load_image_raw_os: mmc block read error\n");
#endif
return -1;
}
ret = mmc_load_image_raw_sector(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
if (ret)
return ret;
if (spl_image.os != IH_OS_LINUX) {
puts("Expected Linux image is not found. Trying to start U-boot\n");
return -ENOENT;
}
return 0;
}
#else
int spl_start_uboot(void)
{
return 1;
}
static int mmc_load_image_raw_os(struct mmc *mmc)
{
return -ENOSYS;
}
#endif
#ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION
int spl_mmc_do_fs_boot(struct mmc *mmc)
{
int err = -ENOSYS;
#ifdef CONFIG_SPL_FAT_SUPPORT
if (!spl_start_uboot()) {
err = spl_load_image_fat_os(mmc_get_blk_desc(mmc),
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
if (!err)
return err;
}
#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
err = spl_load_image_fat(mmc_get_blk_desc(mmc),
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
if (!err)
return err;
#endif
#endif
#ifdef CONFIG_SPL_EXT_SUPPORT
if (!spl_start_uboot()) {
err = spl_load_image_ext_os(&mmc->block_dev,
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
if (!err)
return err;
}
#ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME
err = spl_load_image_ext(&mmc->block_dev,
CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
if (!err)
return err;
#endif
#endif
#if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
err = -ENOENT;
#endif
return err;
}
#else
int spl_mmc_do_fs_boot(struct mmc *mmc)
{
return -ENOSYS;
}
#endif
int spl_mmc_load_image(u32 boot_device)
{
struct mmc *mmc = NULL;
u32 boot_mode;
int err = 0;
__maybe_unused int part;
err = spl_mmc_find_device(&mmc, boot_device);
if (err)
return err;
err = mmc_init(mmc);
if (err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
printf("spl: mmc init failed with error: %d\n", err);
#endif
return err;
}
boot_mode = spl_boot_mode(boot_device);
err = -EINVAL;
switch (boot_mode) {
case MMCSD_MODE_EMMCBOOT:
/*
* We need to check what the partition is configured to.
* 1 and 2 match up to boot0 / boot1 and 7 is user data
* which is the first physical partition (0).
*/
part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
if (part == 7)
part = 0;
err = blk_dselect_hwpart(mmc_get_blk_desc(mmc), part);
if (err) {
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
puts("spl: mmc partition switch failed\n");
#endif
return err;
}
/* Fall through */
case MMCSD_MODE_RAW:
debug("spl: mmc boot mode: raw\n");
if (!spl_start_uboot()) {
err = mmc_load_image_raw_os(mmc);
if (!err)
return err;
}
err = mmc_load_image_raw_partition(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
if (!err)
return err;
#if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR)
err = mmc_load_image_raw_sector(mmc,
CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
if (!err)
return err;
#endif
/* If RAW mode fails, try FS mode. */
case MMCSD_MODE_FS:
debug("spl: mmc boot mode: fs\n");
err = spl_mmc_do_fs_boot(mmc);
if (!err)
return err;
break;
case MMCSD_MODE_UNDEFINED:
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
default:
puts("spl: mmc: wrong boot mode\n");
#endif
}
return err;
}
|
