3 * Kyle Harris, kharris@nexus-tech.net
5 * SPDX-License-Identifier: GPL-2.0+
12 static int curr_device = -1;
13 #ifndef CONFIG_GENERIC_MMC
14 int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
21 if (strcmp(argv[1], "init") == 0) {
27 } else if (argc == 3) {
28 dev = (int)simple_strtoul(argv[2], NULL, 10);
33 if (mmc_legacy_init(dev) != 0) {
34 puts("No MMC card found\n");
35 return CMD_RET_FAILURE;
39 printf("mmc%d is available\n", curr_device);
40 } else if (strcmp(argv[1], "device") == 0) {
42 if (curr_device < 0) {
43 puts("No MMC device available\n");
44 return CMD_RET_FAILURE;
46 } else if (argc == 3) {
47 dev = (int)simple_strtoul(argv[2], NULL, 10);
49 #ifdef CONFIG_SYS_MMC_SET_DEV
50 if (mmc_set_dev(dev) != 0)
51 return CMD_RET_FAILURE;
58 printf("mmc%d is current device\n", curr_device);
63 return CMD_RET_SUCCESS;
69 "init [dev] - init MMC sub system\n"
70 "mmc device [dev] - show or set current device"
72 #else /* !CONFIG_GENERIC_MMC */
80 static void print_mmcinfo(struct mmc *mmc)
82 printf("Device: %s\n", mmc->name);
83 printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
84 printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
85 printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
86 (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
87 (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
89 printf("Tran Speed: %d\n", mmc->tran_speed);
90 printf("Rd Block Len: %d\n", mmc->read_bl_len);
92 printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
93 (mmc->version >> 8) & 0xf, mmc->version & 0xff);
95 printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
97 print_size(mmc->capacity, "\n");
99 printf("Bus Width: %d-bit\n", mmc->bus_width);
102 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
106 if (curr_device < 0) {
107 if (get_mmc_num() > 0)
110 puts("No MMC device available\n");
111 return CMD_RET_FAILURE;
115 mmc = find_mmc_device(curr_device);
121 return CMD_RET_SUCCESS;
123 printf("no mmc device at slot %x\n", curr_device);
124 return CMD_RET_FAILURE;
129 mmcinfo, 1, 0, do_mmcinfo,
131 "- display info of the current MMC device"
134 #ifdef CONFIG_SUPPORT_EMMC_BOOT
135 static int boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
138 err = mmc_boot_part_access(mmc, ack, part_num, access);
140 if ((err == 0) && (access != 0)) {
143 printf("You must close EMMC boot Partition after all images are written\n");
144 printf("EMMC boot partition has continuity at image writing time.\n");
145 printf("So, do not close the boot partition before all images are written.\n");
146 return CMD_RET_SUCCESS;
147 } else if ((err == 0) && (access == 0))
148 return CMD_RET_SUCCESS;
149 else if ((err != 0) && (access != 0)) {
150 printf("EMMC boot partition-%d OPEN Failed.\n", part_num);
151 return CMD_RET_FAILURE;
153 printf("EMMC boot partition-%d CLOSE Failed.\n", part_num);
154 return CMD_RET_FAILURE;
159 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
161 enum mmc_state state;
164 return CMD_RET_USAGE;
166 if (curr_device < 0) {
167 if (get_mmc_num() > 0)
170 puts("No MMC device available\n");
171 return CMD_RET_FAILURE;
175 if (strcmp(argv[1], "rescan") == 0) {
179 return CMD_RET_USAGE;
181 mmc = find_mmc_device(curr_device);
183 printf("no mmc device at slot %x\n", curr_device);
184 return CMD_RET_FAILURE;
190 return CMD_RET_FAILURE;
192 return CMD_RET_SUCCESS;
193 } else if (strncmp(argv[1], "part", 4) == 0) {
194 block_dev_desc_t *mmc_dev;
198 return CMD_RET_USAGE;
200 mmc = find_mmc_device(curr_device);
202 printf("no mmc device at slot %x\n", curr_device);
203 return CMD_RET_FAILURE;
206 mmc_dev = mmc_get_dev(curr_device);
207 if (mmc_dev != NULL &&
208 mmc_dev->type != DEV_TYPE_UNKNOWN) {
210 return CMD_RET_SUCCESS;
213 puts("get mmc type error!\n");
214 return CMD_RET_FAILURE;
215 } else if (strcmp(argv[1], "list") == 0) {
217 return CMD_RET_USAGE;
218 print_mmc_devices('\n');
219 return CMD_RET_SUCCESS;
220 } else if (strcmp(argv[1], "dev") == 0) {
227 dev = simple_strtoul(argv[2], NULL, 10);
228 else if (argc == 4) {
229 dev = (int)simple_strtoul(argv[2], NULL, 10);
230 part = (int)simple_strtoul(argv[3], NULL, 10);
231 if (part > PART_ACCESS_MASK) {
232 printf("#part_num shouldn't be larger"
233 " than %d\n", PART_ACCESS_MASK);
234 return CMD_RET_FAILURE;
237 return CMD_RET_USAGE;
239 mmc = find_mmc_device(dev);
241 printf("no mmc device at slot %x\n", dev);
242 return CMD_RET_FAILURE;
248 if (mmc->part_config == MMCPART_NOAVAILABLE) {
249 printf("Card doesn't support part_switch\n");
250 return CMD_RET_FAILURE;
253 if (part != mmc->part_num) {
254 ret = mmc_switch_part(dev, part);
256 mmc->part_num = part;
258 printf("switch to partions #%d, %s\n",
259 part, (!ret) ? "OK" : "ERROR");
263 if (mmc->part_config == MMCPART_NOAVAILABLE)
264 printf("mmc%d is current device\n", curr_device);
266 printf("mmc%d(part %d) is current device\n",
267 curr_device, mmc->part_num);
269 return CMD_RET_SUCCESS;
270 #ifdef CONFIG_SUPPORT_EMMC_BOOT
271 } else if ((strcmp(argv[1], "open") == 0) ||
272 (strcmp(argv[1], "close") == 0)) {
275 u8 part_num, access = 0;
278 dev = simple_strtoul(argv[2], NULL, 10);
279 part_num = simple_strtoul(argv[3], NULL, 10);
281 return CMD_RET_USAGE;
284 mmc = find_mmc_device(dev);
286 printf("no mmc device at slot %x\n", dev);
287 return CMD_RET_FAILURE;
291 printf("SD device cannot be opened/closed\n");
292 return CMD_RET_FAILURE;
295 if ((part_num <= 0) || (part_num > MMC_NUM_BOOT_PARTITION)) {
296 printf("Invalid boot partition number:\n");
297 printf("Boot partition number cannot be <= 0\n");
298 printf("EMMC44 supports only 2 boot partitions\n");
299 return CMD_RET_FAILURE;
302 if (strcmp(argv[1], "open") == 0)
303 access = part_num; /* enable R/W access to boot part*/
305 access = 0; /* No access to boot partition */
307 /* acknowledge to be sent during boot operation */
308 return boot_part_access(mmc, 1, part_num, access);
310 } else if (strcmp(argv[1], "bootpart") == 0) {
314 return CMD_RET_USAGE;
316 dev = simple_strtoul(argv[2], NULL, 10);
318 u32 bootsize = simple_strtoul(argv[3], NULL, 10);
319 u32 rpmbsize = simple_strtoul(argv[4], NULL, 10);
320 struct mmc *mmc = find_mmc_device(dev);
322 printf("no mmc device at slot %x\n", dev);
323 return CMD_RET_FAILURE;
327 printf("It is not a EMMC device\n");
328 return CMD_RET_FAILURE;
331 if (0 == mmc_boot_partition_size_change(mmc,
332 bootsize, rpmbsize)) {
333 printf("EMMC boot partition Size %d MB\n", bootsize);
334 printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
335 return CMD_RET_SUCCESS;
337 printf("EMMC boot partition Size change Failed.\n");
338 return CMD_RET_FAILURE;
340 #endif /* CONFIG_SUPPORT_EMMC_BOOT */
343 if (argc == 5 && strcmp(argv[1], "read") == 0)
345 else if (argc == 5 && strcmp(argv[1], "write") == 0)
347 else if (argc == 4 && strcmp(argv[1], "erase") == 0)
350 if (state != MMC_INVALID) {
351 struct mmc *mmc = find_mmc_device(curr_device);
356 if (state != MMC_ERASE) {
357 addr = (void *)simple_strtoul(argv[idx], NULL, 16);
361 blk = simple_strtoul(argv[idx], NULL, 16);
362 cnt = simple_strtoul(argv[idx + 1], NULL, 16);
365 printf("no mmc device at slot %x\n", curr_device);
366 return CMD_RET_FAILURE;
369 printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
370 argv[1], curr_device, blk, cnt);
374 if ((state == MMC_WRITE || state == MMC_ERASE)) {
375 if (mmc_getwp(mmc) == 1) {
376 printf("Error: card is write protected!\n");
377 return CMD_RET_FAILURE;
383 n = mmc->block_dev.block_read(curr_device, blk,
385 /* flush cache after read */
386 flush_cache((ulong)addr, cnt * 512); /* FIXME */
389 n = mmc->block_dev.block_write(curr_device, blk,
393 n = mmc->block_dev.block_erase(curr_device, blk, cnt);
399 printf("%d blocks %s: %s\n",
400 n, argv[1], (n == cnt) ? "OK" : "ERROR");
401 return (n == cnt) ? 0 : 1;
404 return CMD_RET_USAGE;
408 mmc, 6, 1, do_mmcops,
410 "read addr blk# cnt\n"
411 "mmc write addr blk# cnt\n"
412 "mmc erase blk# cnt\n"
414 "mmc part - lists available partition on current mmc device\n"
415 "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
416 "mmc list - lists available devices\n"
417 #ifdef CONFIG_SUPPORT_EMMC_BOOT
418 "mmc open <dev> <boot_partition>\n"
419 " - Enable boot_part for booting and enable R/W access of boot_part\n"
420 "mmc close <dev> <boot_partition>\n"
421 " - Enable boot_part for booting and disable access to boot_part\n"
422 "mmc bootpart <device num> <boot part size MB> <RPMB part size MB>\n"
423 " - change sizes of boot and RPMB partions of specified device\n"
426 #endif /* !CONFIG_GENERIC_MMC */