Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 1 | /* |
| 2 | * This program is free software; you can redistribute it and/or |
| 3 | * modify it under the terms of the GNU General Public |
| 4 | * License v2 as published by the Free Software Foundation. |
| 5 | * |
| 6 | * This program is distributed in the hope that it will be useful, |
| 7 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 9 | * General Public License for more details. |
| 10 | * |
| 11 | * You should have received a copy of the GNU General Public |
| 12 | * License along with this program; if not, write to the |
| 13 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 14 | * Boston, MA 021110-1307, USA. |
| 15 | */ |
| 16 | |
| 17 | #include <stdio.h> |
| 18 | #include <stdlib.h> |
| 19 | #include <string.h> |
| 20 | #include <sys/ioctl.h> |
| 21 | #include <sys/types.h> |
Mohamad Ayyash | b7c16c9 | 2015-10-22 17:29:27 -0700 | [diff] [blame] | 22 | #include <sys/endian.h> |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 23 | #include <dirent.h> |
| 24 | #include <sys/stat.h> |
| 25 | #include <unistd.h> |
| 26 | #include <fcntl.h> |
| 27 | #include <libgen.h> |
| 28 | #include <limits.h> |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 29 | #include <ctype.h> |
Roman Peniaev | c6cb053 | 2014-08-12 23:25:45 +0900 | [diff] [blame] | 30 | #include <errno.h> |
| 31 | #include <stdint.h> |
| 32 | #include <assert.h> |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 33 | |
| 34 | #include "mmc.h" |
| 35 | #include "mmc_cmds.h" |
Roman Peniaev | c6cb053 | 2014-08-12 23:25:45 +0900 | [diff] [blame] | 36 | #include "3rdparty/hmac_sha/hmac_sha2.h" |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 37 | |
| 38 | int read_extcsd(int fd, __u8 *ext_csd) |
| 39 | { |
| 40 | int ret = 0; |
| 41 | struct mmc_ioc_cmd idata; |
| 42 | memset(&idata, 0, sizeof(idata)); |
| 43 | memset(ext_csd, 0, sizeof(__u8) * 512); |
| 44 | idata.write_flag = 0; |
| 45 | idata.opcode = MMC_SEND_EXT_CSD; |
| 46 | idata.arg = 0; |
| 47 | idata.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; |
| 48 | idata.blksz = 512; |
| 49 | idata.blocks = 1; |
| 50 | mmc_ioc_cmd_set_data(idata, ext_csd); |
| 51 | |
| 52 | ret = ioctl(fd, MMC_IOC_CMD, &idata); |
| 53 | if (ret) |
| 54 | perror("ioctl"); |
| 55 | |
| 56 | return ret; |
| 57 | } |
| 58 | |
| 59 | int write_extcsd_value(int fd, __u8 index, __u8 value) |
| 60 | { |
| 61 | int ret = 0; |
| 62 | struct mmc_ioc_cmd idata; |
| 63 | |
| 64 | memset(&idata, 0, sizeof(idata)); |
| 65 | idata.write_flag = 1; |
| 66 | idata.opcode = MMC_SWITCH; |
| 67 | idata.arg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) | |
| 68 | (index << 16) | |
| 69 | (value << 8) | |
| 70 | EXT_CSD_CMD_SET_NORMAL; |
| 71 | idata.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; |
| 72 | |
| 73 | ret = ioctl(fd, MMC_IOC_CMD, &idata); |
| 74 | if (ret) |
| 75 | perror("ioctl"); |
| 76 | |
| 77 | return ret; |
| 78 | } |
| 79 | |
Ben Gardiner | 27c357d | 2013-05-30 17:12:47 -0400 | [diff] [blame] | 80 | int send_status(int fd, __u32 *response) |
| 81 | { |
| 82 | int ret = 0; |
| 83 | struct mmc_ioc_cmd idata; |
| 84 | |
| 85 | memset(&idata, 0, sizeof(idata)); |
| 86 | idata.opcode = MMC_SEND_STATUS; |
| 87 | idata.arg = (1 << 16); |
| 88 | idata.flags = MMC_RSP_R1 | MMC_CMD_AC; |
| 89 | |
| 90 | ret = ioctl(fd, MMC_IOC_CMD, &idata); |
| 91 | if (ret) |
| 92 | perror("ioctl"); |
| 93 | |
| 94 | *response = idata.response[0]; |
| 95 | |
| 96 | return ret; |
| 97 | } |
| 98 | |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 99 | void print_writeprotect_status(__u8 *ext_csd) |
| 100 | { |
| 101 | __u8 reg; |
Al Cooper | d0b4644 | 2015-04-29 18:12:35 -0400 | [diff] [blame] | 102 | __u8 ext_csd_rev = ext_csd[EXT_CSD_REV]; |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 103 | |
| 104 | /* A43: reserved [174:0] */ |
| 105 | if (ext_csd_rev >= 5) { |
| 106 | printf("Boot write protection status registers" |
| 107 | " [BOOT_WP_STATUS]: 0x%02x\n", ext_csd[174]); |
| 108 | |
| 109 | reg = ext_csd[EXT_CSD_BOOT_WP]; |
| 110 | printf("Boot Area Write protection [BOOT_WP]: 0x%02x\n", reg); |
| 111 | printf(" Power ro locking: "); |
| 112 | if (reg & EXT_CSD_BOOT_WP_B_PWR_WP_DIS) |
| 113 | printf("not possible\n"); |
| 114 | else |
| 115 | printf("possible\n"); |
| 116 | |
| 117 | printf(" Permanent ro locking: "); |
| 118 | if (reg & EXT_CSD_BOOT_WP_B_PERM_WP_DIS) |
| 119 | printf("not possible\n"); |
| 120 | else |
| 121 | printf("possible\n"); |
| 122 | |
| 123 | printf(" ro lock status: "); |
| 124 | if (reg & EXT_CSD_BOOT_WP_B_PWR_WP_EN) |
| 125 | printf("locked until next power on\n"); |
| 126 | else if (reg & EXT_CSD_BOOT_WP_B_PERM_WP_EN) |
| 127 | printf("locked permanently\n"); |
| 128 | else |
| 129 | printf("not locked\n"); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | int do_writeprotect_get(int nargs, char **argv) |
| 134 | { |
| 135 | __u8 ext_csd[512]; |
| 136 | int fd, ret; |
| 137 | char *device; |
| 138 | |
Chris Ball | 8ba4466 | 2012-04-19 13:22:54 -0400 | [diff] [blame] | 139 | CHECK(nargs != 2, "Usage: mmc writeprotect get </path/to/mmcblkX>\n", |
| 140 | exit(1)); |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 141 | |
| 142 | device = argv[1]; |
| 143 | |
| 144 | fd = open(device, O_RDWR); |
| 145 | if (fd < 0) { |
| 146 | perror("open"); |
| 147 | exit(1); |
| 148 | } |
| 149 | |
| 150 | ret = read_extcsd(fd, ext_csd); |
| 151 | if (ret) { |
| 152 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 153 | exit(1); |
| 154 | } |
| 155 | |
| 156 | print_writeprotect_status(ext_csd); |
| 157 | |
| 158 | return ret; |
| 159 | } |
| 160 | |
| 161 | int do_writeprotect_set(int nargs, char **argv) |
| 162 | { |
| 163 | __u8 ext_csd[512], value; |
| 164 | int fd, ret; |
| 165 | char *device; |
| 166 | |
Chris Ball | 8ba4466 | 2012-04-19 13:22:54 -0400 | [diff] [blame] | 167 | CHECK(nargs != 2, "Usage: mmc writeprotect set </path/to/mmcblkX>\n", |
| 168 | exit(1)); |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 169 | |
| 170 | device = argv[1]; |
| 171 | |
| 172 | fd = open(device, O_RDWR); |
| 173 | if (fd < 0) { |
| 174 | perror("open"); |
| 175 | exit(1); |
| 176 | } |
| 177 | |
| 178 | ret = read_extcsd(fd, ext_csd); |
| 179 | if (ret) { |
| 180 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 181 | exit(1); |
| 182 | } |
| 183 | |
| 184 | value = ext_csd[EXT_CSD_BOOT_WP] | |
| 185 | EXT_CSD_BOOT_WP_B_PWR_WP_EN; |
| 186 | ret = write_extcsd_value(fd, EXT_CSD_BOOT_WP, value); |
| 187 | if (ret) { |
| 188 | fprintf(stderr, "Could not write 0x%02x to " |
| 189 | "EXT_CSD[%d] in %s\n", |
| 190 | value, EXT_CSD_BOOT_WP, device); |
| 191 | exit(1); |
| 192 | } |
| 193 | |
| 194 | return ret; |
| 195 | } |
| 196 | |
Saugata Das | b7e2599 | 2012-05-17 09:26:34 -0400 | [diff] [blame] | 197 | int do_disable_512B_emulation(int nargs, char **argv) |
| 198 | { |
| 199 | __u8 ext_csd[512], native_sector_size, data_sector_size, wr_rel_param; |
| 200 | int fd, ret; |
| 201 | char *device; |
| 202 | |
| 203 | CHECK(nargs != 2, "Usage: mmc disable 512B emulation </path/to/mmcblkX>\n", exit(1)); |
| 204 | device = argv[1]; |
| 205 | |
| 206 | fd = open(device, O_RDWR); |
| 207 | if (fd < 0) { |
| 208 | perror("open"); |
| 209 | exit(1); |
| 210 | } |
| 211 | |
| 212 | ret = read_extcsd(fd, ext_csd); |
| 213 | if (ret) { |
| 214 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 215 | exit(1); |
| 216 | } |
| 217 | |
| 218 | wr_rel_param = ext_csd[EXT_CSD_WR_REL_PARAM]; |
| 219 | native_sector_size = ext_csd[EXT_CSD_NATIVE_SECTOR_SIZE]; |
| 220 | data_sector_size = ext_csd[EXT_CSD_DATA_SECTOR_SIZE]; |
| 221 | |
| 222 | if (native_sector_size && !data_sector_size && |
| 223 | (wr_rel_param & EN_REL_WR)) { |
| 224 | ret = write_extcsd_value(fd, EXT_CSD_USE_NATIVE_SECTOR, 1); |
| 225 | |
| 226 | if (ret) { |
| 227 | fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 228 | 1, EXT_CSD_BOOT_WP, device); |
| 229 | exit(1); |
| 230 | } |
| 231 | printf("MMC disable 512B emulation successful. Now reset the device to switch to 4KB native sector mode.\n"); |
| 232 | } else if (native_sector_size && data_sector_size) { |
| 233 | printf("MMC 512B emulation mode is already disabled; doing nothing.\n"); |
| 234 | } else { |
| 235 | printf("MMC does not support disabling 512B emulation mode.\n"); |
| 236 | } |
| 237 | |
| 238 | return ret; |
| 239 | } |
| 240 | |
Giuseppe CAVALLARO | 7bd1320 | 2012-04-19 10:58:37 +0200 | [diff] [blame] | 241 | int do_write_boot_en(int nargs, char **argv) |
| 242 | { |
| 243 | __u8 ext_csd[512]; |
| 244 | __u8 value = 0; |
| 245 | int fd, ret; |
| 246 | char *device; |
| 247 | int boot_area, send_ack; |
| 248 | |
| 249 | CHECK(nargs != 4, "Usage: mmc bootpart enable <partition_number> " |
| 250 | "<send_ack> </path/to/mmcblkX>\n", exit(1)); |
| 251 | |
| 252 | /* |
| 253 | * If <send_ack> is 1, the device will send acknowledgment |
| 254 | * pattern "010" to the host when boot operation begins. |
| 255 | * If <send_ack> is 0, it won't. |
| 256 | */ |
| 257 | boot_area = strtol(argv[1], NULL, 10); |
| 258 | send_ack = strtol(argv[2], NULL, 10); |
| 259 | device = argv[3]; |
| 260 | |
| 261 | fd = open(device, O_RDWR); |
| 262 | if (fd < 0) { |
| 263 | perror("open"); |
| 264 | exit(1); |
| 265 | } |
| 266 | |
| 267 | ret = read_extcsd(fd, ext_csd); |
| 268 | if (ret) { |
| 269 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 270 | exit(1); |
| 271 | } |
| 272 | |
| 273 | value = ext_csd[EXT_CSD_PART_CONFIG]; |
| 274 | |
| 275 | switch (boot_area) { |
| 276 | case EXT_CSD_PART_CONFIG_ACC_BOOT0: |
| 277 | value |= (1 << 3); |
| 278 | value &= ~(3 << 4); |
| 279 | break; |
| 280 | case EXT_CSD_PART_CONFIG_ACC_BOOT1: |
| 281 | value |= (1 << 4); |
| 282 | value &= ~(1 << 3); |
| 283 | value &= ~(1 << 5); |
| 284 | break; |
| 285 | case EXT_CSD_PART_CONFIG_ACC_USER_AREA: |
| 286 | value |= (boot_area << 3); |
| 287 | break; |
| 288 | default: |
| 289 | fprintf(stderr, "Cannot enable the boot area\n"); |
| 290 | exit(1); |
| 291 | } |
| 292 | if (send_ack) |
| 293 | value |= EXT_CSD_PART_CONFIG_ACC_ACK; |
| 294 | else |
| 295 | value &= ~EXT_CSD_PART_CONFIG_ACC_ACK; |
| 296 | |
| 297 | ret = write_extcsd_value(fd, EXT_CSD_PART_CONFIG, value); |
| 298 | if (ret) { |
| 299 | fprintf(stderr, "Could not write 0x%02x to " |
| 300 | "EXT_CSD[%d] in %s\n", |
| 301 | value, EXT_CSD_PART_CONFIG, device); |
| 302 | exit(1); |
| 303 | } |
| 304 | return ret; |
| 305 | } |
| 306 | |
Al Cooper | 64c2de8 | 2015-05-01 08:24:37 -0400 | [diff] [blame] | 307 | int do_boot_bus_conditions_set(int nargs, char **argv) |
| 308 | { |
| 309 | __u8 ext_csd[512]; |
| 310 | __u8 value = 0; |
| 311 | int fd, ret; |
| 312 | char *device; |
| 313 | |
| 314 | CHECK(nargs != 5, "Usage: mmc: bootbus set <boot_mode> " |
| 315 | "<reset_boot_bus_conditions> <boot_bus_width> <device>\n", |
| 316 | exit(1)); |
| 317 | |
| 318 | if (strcmp(argv[1], "single_backward") == 0) |
| 319 | value |= 0; |
| 320 | else if (strcmp(argv[1], "single_hs") == 0) |
| 321 | value |= 0x8; |
| 322 | else if (strcmp(argv[1], "dual") == 0) |
| 323 | value |= 0x10; |
| 324 | else { |
| 325 | fprintf(stderr, "illegal <boot_mode> specified\n"); |
| 326 | exit(1); |
| 327 | } |
| 328 | |
| 329 | if (strcmp(argv[2], "x1") == 0) |
| 330 | value |= 0; |
| 331 | else if (strcmp(argv[2], "retain") == 0) |
| 332 | value |= 0x4; |
| 333 | else { |
| 334 | fprintf(stderr, |
| 335 | "illegal <reset_boot_bus_conditions> specified\n"); |
| 336 | exit(1); |
| 337 | } |
| 338 | |
| 339 | if (strcmp(argv[3], "x1") == 0) |
| 340 | value |= 0; |
| 341 | else if (strcmp(argv[3], "x4") == 0) |
| 342 | value |= 0x1; |
| 343 | else if (strcmp(argv[3], "x8") == 0) |
| 344 | value |= 0x2; |
| 345 | else { |
| 346 | fprintf(stderr, "illegal <boot_bus_width> specified\n"); |
| 347 | exit(1); |
| 348 | } |
| 349 | |
| 350 | device = argv[4]; |
| 351 | fd = open(device, O_RDWR); |
| 352 | if (fd < 0) { |
| 353 | perror("open"); |
| 354 | exit(1); |
| 355 | } |
| 356 | |
| 357 | ret = read_extcsd(fd, ext_csd); |
| 358 | if (ret) { |
| 359 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 360 | exit(1); |
| 361 | } |
| 362 | printf("Changing ext_csd[BOOT_BUS_CONDITIONS] from 0x%02x to 0x%02x\n", |
| 363 | ext_csd[EXT_CSD_BOOT_BUS_CONDITIONS], value); |
| 364 | |
| 365 | ret = write_extcsd_value(fd, EXT_CSD_BOOT_BUS_CONDITIONS, value); |
| 366 | if (ret) { |
| 367 | fprintf(stderr, "Could not write 0x%02x to " |
| 368 | "EXT_CSD[%d] in %s\n", |
| 369 | value, EXT_CSD_BOOT_BUS_CONDITIONS, device); |
| 370 | exit(1); |
| 371 | } |
| 372 | close(fd); |
| 373 | return ret; |
| 374 | } |
| 375 | |
Chris Ball | f74dfe2 | 2012-10-19 16:49:55 -0400 | [diff] [blame] | 376 | int do_hwreset(int value, int nargs, char **argv) |
| 377 | { |
| 378 | __u8 ext_csd[512]; |
| 379 | int fd, ret; |
| 380 | char *device; |
| 381 | |
| 382 | CHECK(nargs != 2, "Usage: mmc hwreset enable </path/to/mmcblkX>\n", |
| 383 | exit(1)); |
| 384 | |
| 385 | device = argv[1]; |
| 386 | |
| 387 | fd = open(device, O_RDWR); |
| 388 | if (fd < 0) { |
| 389 | perror("open"); |
| 390 | exit(1); |
| 391 | } |
| 392 | |
| 393 | ret = read_extcsd(fd, ext_csd); |
| 394 | if (ret) { |
| 395 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 396 | exit(1); |
| 397 | } |
| 398 | |
| 399 | if ((ext_csd[EXT_CSD_RST_N_FUNCTION] & EXT_CSD_RST_N_EN_MASK) == |
| 400 | EXT_CSD_HW_RESET_EN) { |
| 401 | fprintf(stderr, |
| 402 | "H/W Reset is already permanently enabled on %s\n", |
| 403 | device); |
| 404 | exit(1); |
| 405 | } |
| 406 | if ((ext_csd[EXT_CSD_RST_N_FUNCTION] & EXT_CSD_RST_N_EN_MASK) == |
| 407 | EXT_CSD_HW_RESET_DIS) { |
| 408 | fprintf(stderr, |
| 409 | "H/W Reset is already permanently disabled on %s\n", |
| 410 | device); |
| 411 | exit(1); |
| 412 | } |
| 413 | |
| 414 | ret = write_extcsd_value(fd, EXT_CSD_RST_N_FUNCTION, value); |
| 415 | if (ret) { |
| 416 | fprintf(stderr, |
| 417 | "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 418 | value, EXT_CSD_RST_N_FUNCTION, device); |
| 419 | exit(1); |
| 420 | } |
| 421 | |
| 422 | return ret; |
| 423 | } |
| 424 | |
| 425 | int do_hwreset_en(int nargs, char **argv) |
| 426 | { |
| 427 | return do_hwreset(EXT_CSD_HW_RESET_EN, nargs, argv); |
| 428 | } |
| 429 | |
| 430 | int do_hwreset_dis(int nargs, char **argv) |
| 431 | { |
| 432 | return do_hwreset(EXT_CSD_HW_RESET_DIS, nargs, argv); |
| 433 | } |
| 434 | |
Jaehoon Chung | 8649651 | 2012-09-21 10:08:05 +0000 | [diff] [blame] | 435 | int do_write_bkops_en(int nargs, char **argv) |
| 436 | { |
| 437 | __u8 ext_csd[512], value = 0; |
| 438 | int fd, ret; |
| 439 | char *device; |
| 440 | |
| 441 | CHECK(nargs != 2, "Usage: mmc bkops enable </path/to/mmcblkX>\n", |
| 442 | exit(1)); |
| 443 | |
| 444 | device = argv[1]; |
| 445 | |
| 446 | fd = open(device, O_RDWR); |
| 447 | if (fd < 0) { |
| 448 | perror("open"); |
| 449 | exit(1); |
| 450 | } |
| 451 | |
| 452 | ret = read_extcsd(fd, ext_csd); |
| 453 | if (ret) { |
| 454 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 455 | exit(1); |
| 456 | } |
| 457 | |
| 458 | if (!(ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1)) { |
| 459 | fprintf(stderr, "%s doesn't support BKOPS\n", device); |
| 460 | exit(1); |
| 461 | } |
| 462 | |
| 463 | ret = write_extcsd_value(fd, EXT_CSD_BKOPS_EN, BKOPS_ENABLE); |
| 464 | if (ret) { |
| 465 | fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 466 | value, EXT_CSD_BKOPS_EN, device); |
| 467 | exit(1); |
| 468 | } |
| 469 | |
| 470 | return ret; |
| 471 | } |
| 472 | |
Ben Gardiner | 27c357d | 2013-05-30 17:12:47 -0400 | [diff] [blame] | 473 | int do_status_get(int nargs, char **argv) |
| 474 | { |
| 475 | __u32 response; |
| 476 | int fd, ret; |
| 477 | char *device; |
| 478 | |
| 479 | CHECK(nargs != 2, "Usage: mmc status get </path/to/mmcblkX>\n", |
| 480 | exit(1)); |
| 481 | |
| 482 | device = argv[1]; |
| 483 | |
| 484 | fd = open(device, O_RDWR); |
| 485 | if (fd < 0) { |
| 486 | perror("open"); |
| 487 | exit(1); |
| 488 | } |
| 489 | |
| 490 | ret = send_status(fd, &response); |
| 491 | if (ret) { |
| 492 | fprintf(stderr, "Could not read response to SEND_STATUS from %s\n", device); |
| 493 | exit(1); |
| 494 | } |
| 495 | |
| 496 | printf("SEND_STATUS response: 0x%08x\n", response); |
| 497 | |
| 498 | return ret; |
| 499 | } |
| 500 | |
Ben Gardiner | 4e85023 | 2013-05-30 17:12:49 -0400 | [diff] [blame] | 501 | unsigned int get_sector_count(__u8 *ext_csd) |
| 502 | { |
| 503 | return (ext_csd[EXT_CSD_SEC_COUNT_3] << 24) | |
| 504 | (ext_csd[EXT_CSD_SEC_COUNT_2] << 16) | |
| 505 | (ext_csd[EXT_CSD_SEC_COUNT_1] << 8) | |
| 506 | ext_csd[EXT_CSD_SEC_COUNT_0]; |
| 507 | } |
| 508 | |
| 509 | int is_blockaddresed(__u8 *ext_csd) |
| 510 | { |
| 511 | unsigned int sectors = get_sector_count(ext_csd); |
| 512 | |
| 513 | return (sectors > (2u * 1024 * 1024 * 1024) / 512); |
| 514 | } |
| 515 | |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 516 | unsigned int get_hc_wp_grp_size(__u8 *ext_csd) |
| 517 | { |
| 518 | return ext_csd[221]; |
| 519 | } |
| 520 | |
| 521 | unsigned int get_hc_erase_grp_size(__u8 *ext_csd) |
| 522 | { |
| 523 | return ext_csd[224]; |
| 524 | } |
| 525 | |
Ben Gardiner | e6e84e9 | 2013-09-19 11:14:27 -0400 | [diff] [blame] | 526 | int set_partitioning_setting_completed(int dry_run, const char * const device, |
| 527 | int fd) |
| 528 | { |
| 529 | int ret; |
| 530 | |
| 531 | if (dry_run) { |
| 532 | fprintf(stderr, "NOT setting PARTITION_SETTING_COMPLETED\n"); |
| 533 | fprintf(stderr, "These changes will not take effect neither " |
| 534 | "now nor after a power cycle\n"); |
| 535 | return 1; |
| 536 | } |
| 537 | |
| 538 | fprintf(stderr, "setting OTP PARTITION_SETTING_COMPLETED!\n"); |
| 539 | ret = write_extcsd_value(fd, EXT_CSD_PARTITION_SETTING_COMPLETED, 0x1); |
| 540 | if (ret) { |
| 541 | fprintf(stderr, "Could not write 0x1 to " |
| 542 | "EXT_CSD[%d] in %s\n", |
| 543 | EXT_CSD_PARTITION_SETTING_COMPLETED, device); |
| 544 | return 1; |
| 545 | } |
| 546 | |
| 547 | __u32 response; |
| 548 | ret = send_status(fd, &response); |
| 549 | if (ret) { |
| 550 | fprintf(stderr, "Could not get response to SEND_STATUS " |
| 551 | "from %s\n", device); |
| 552 | return 1; |
| 553 | } |
| 554 | |
| 555 | if (response & R1_SWITCH_ERROR) { |
| 556 | fprintf(stderr, "Setting OTP PARTITION_SETTING_COMPLETED " |
| 557 | "failed on %s\n", device); |
| 558 | return 1; |
| 559 | } |
| 560 | |
| 561 | fprintf(stderr, "Setting OTP PARTITION_SETTING_COMPLETED on " |
| 562 | "%s SUCCESS\n", device); |
| 563 | fprintf(stderr, "Device power cycle needed for settings to " |
| 564 | "take effect.\n" |
| 565 | "Confirm that PARTITION_SETTING_COMPLETED bit is set " |
| 566 | "using 'extcsd read' after power cycle\n"); |
| 567 | |
| 568 | return 0; |
| 569 | } |
| 570 | |
Balaji T K | 4afc8c8 | 2015-04-29 18:12:32 -0400 | [diff] [blame] | 571 | int check_enhanced_area_total_limit(const char * const device, int fd) |
| 572 | { |
| 573 | __u8 ext_csd[512]; |
| 574 | __u32 regl; |
| 575 | unsigned long max_enh_area_sz, user_area_sz, enh_area_sz = 0; |
| 576 | unsigned long gp4_part_sz, gp3_part_sz, gp2_part_sz, gp1_part_sz; |
Balaji T K | 7891236 | 2015-04-29 18:12:33 -0400 | [diff] [blame] | 577 | unsigned long total_sz, total_gp_user_sz; |
Balaji T K | 4afc8c8 | 2015-04-29 18:12:32 -0400 | [diff] [blame] | 578 | unsigned int wp_sz, erase_sz; |
| 579 | int ret; |
| 580 | |
| 581 | ret = read_extcsd(fd, ext_csd); |
| 582 | if (ret) { |
| 583 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 584 | exit(1); |
| 585 | } |
| 586 | wp_sz = get_hc_wp_grp_size(ext_csd); |
| 587 | erase_sz = get_hc_erase_grp_size(ext_csd); |
| 588 | |
| 589 | regl = (ext_csd[EXT_CSD_GP_SIZE_MULT_4_2] << 16) | |
| 590 | (ext_csd[EXT_CSD_GP_SIZE_MULT_4_1] << 8) | |
| 591 | ext_csd[EXT_CSD_GP_SIZE_MULT_4_0]; |
| 592 | gp4_part_sz = 512l * regl * erase_sz * wp_sz; |
| 593 | if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_4) { |
| 594 | enh_area_sz += gp4_part_sz; |
| 595 | printf("Enhanced GP4 Partition Size [GP_SIZE_MULT_4]: 0x%06x\n", regl); |
| 596 | printf(" i.e. %lu KiB\n", gp4_part_sz); |
| 597 | } |
| 598 | |
| 599 | regl = (ext_csd[EXT_CSD_GP_SIZE_MULT_3_2] << 16) | |
| 600 | (ext_csd[EXT_CSD_GP_SIZE_MULT_3_1] << 8) | |
| 601 | ext_csd[EXT_CSD_GP_SIZE_MULT_3_0]; |
| 602 | gp3_part_sz = 512l * regl * erase_sz * wp_sz; |
| 603 | if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_3) { |
| 604 | enh_area_sz += gp3_part_sz; |
| 605 | printf("Enhanced GP3 Partition Size [GP_SIZE_MULT_3]: 0x%06x\n", regl); |
| 606 | printf(" i.e. %lu KiB\n", gp3_part_sz); |
| 607 | } |
| 608 | |
| 609 | regl = (ext_csd[EXT_CSD_GP_SIZE_MULT_2_2] << 16) | |
| 610 | (ext_csd[EXT_CSD_GP_SIZE_MULT_2_1] << 8) | |
| 611 | ext_csd[EXT_CSD_GP_SIZE_MULT_2_0]; |
| 612 | gp2_part_sz = 512l * regl * erase_sz * wp_sz; |
| 613 | if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_2) { |
| 614 | enh_area_sz += gp2_part_sz; |
| 615 | printf("Enhanced GP2 Partition Size [GP_SIZE_MULT_2]: 0x%06x\n", regl); |
| 616 | printf(" i.e. %lu KiB\n", gp2_part_sz); |
| 617 | } |
| 618 | |
| 619 | regl = (ext_csd[EXT_CSD_GP_SIZE_MULT_1_2] << 16) | |
| 620 | (ext_csd[EXT_CSD_GP_SIZE_MULT_1_1] << 8) | |
| 621 | ext_csd[EXT_CSD_GP_SIZE_MULT_1_0]; |
| 622 | gp1_part_sz = 512l * regl * erase_sz * wp_sz; |
| 623 | if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_1) { |
| 624 | enh_area_sz += gp1_part_sz; |
| 625 | printf("Enhanced GP1 Partition Size [GP_SIZE_MULT_1]: 0x%06x\n", regl); |
| 626 | printf(" i.e. %lu KiB\n", gp1_part_sz); |
| 627 | } |
| 628 | |
| 629 | regl = (ext_csd[EXT_CSD_ENH_SIZE_MULT_2] << 16) | |
| 630 | (ext_csd[EXT_CSD_ENH_SIZE_MULT_1] << 8) | |
| 631 | ext_csd[EXT_CSD_ENH_SIZE_MULT_0]; |
| 632 | user_area_sz = 512l * regl * erase_sz * wp_sz; |
| 633 | if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_USR) { |
| 634 | enh_area_sz += user_area_sz; |
| 635 | printf("Enhanced User Data Area Size [ENH_SIZE_MULT]: 0x%06x\n", regl); |
| 636 | printf(" i.e. %lu KiB\n", user_area_sz); |
| 637 | } |
| 638 | |
| 639 | regl = (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_2] << 16) | |
| 640 | (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_1] << 8) | |
| 641 | ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_0]; |
| 642 | max_enh_area_sz = 512l * regl * erase_sz * wp_sz; |
| 643 | printf("Max Enhanced Area Size [MAX_ENH_SIZE_MULT]: 0x%06x\n", regl); |
| 644 | printf(" i.e. %lu KiB\n", max_enh_area_sz); |
| 645 | if (enh_area_sz > max_enh_area_sz) { |
| 646 | fprintf(stderr, |
| 647 | "Programmed total enhanced size %lu KiB cannot exceed max enhanced area %lu KiB %s\n", |
| 648 | enh_area_sz, max_enh_area_sz, device); |
| 649 | return 1; |
| 650 | } |
Balaji T K | 7891236 | 2015-04-29 18:12:33 -0400 | [diff] [blame] | 651 | total_sz = get_sector_count(ext_csd) / 2; |
| 652 | total_gp_user_sz = gp4_part_sz + gp3_part_sz + gp2_part_sz + |
| 653 | gp1_part_sz + user_area_sz; |
| 654 | if (total_gp_user_sz > total_sz) { |
| 655 | fprintf(stderr, |
| 656 | "requested total partition size %lu KiB cannot exceed card capacity %lu KiB %s\n", |
| 657 | total_gp_user_sz, total_sz, device); |
| 658 | return 1; |
| 659 | } |
| 660 | |
| 661 | return 0; |
| 662 | } |
| 663 | |
| 664 | int do_create_gp_partition(int nargs, char **argv) |
| 665 | { |
| 666 | __u8 value; |
| 667 | __u8 ext_csd[512]; |
| 668 | __u8 address; |
| 669 | int fd, ret; |
| 670 | char *device; |
| 671 | int dry_run = 1; |
| 672 | int partition, enh_attr, ext_attr; |
| 673 | unsigned int length_kib, gp_size_mult; |
| 674 | unsigned long align; |
| 675 | |
| 676 | CHECK(nargs != 7, "Usage: mmc gp create <-y|-n> <length KiB> " |
| 677 | "<partition> <enh_attr> <ext_attr> </path/to/mmcblkX>\n", exit(1)); |
| 678 | |
| 679 | if (!strcmp("-y", argv[1])) |
| 680 | dry_run = 0; |
| 681 | |
| 682 | length_kib = strtol(argv[2], NULL, 10); |
| 683 | partition = strtol(argv[3], NULL, 10); |
| 684 | enh_attr = strtol(argv[4], NULL, 10); |
| 685 | ext_attr = strtol(argv[5], NULL, 10); |
| 686 | device = argv[6]; |
| 687 | |
| 688 | if (partition < 0 || partition > 4) { |
| 689 | printf("Invalid gp parition number valid range [1-4]\n"); |
| 690 | exit(1); |
| 691 | } |
| 692 | |
| 693 | if (enh_attr && ext_attr) { |
| 694 | printf("Not allowed to set both enhanced attribute and extended attribute\n"); |
| 695 | exit(1); |
| 696 | } |
| 697 | |
| 698 | fd = open(device, O_RDWR); |
| 699 | if (fd < 0) { |
| 700 | perror("open"); |
| 701 | exit(1); |
| 702 | } |
| 703 | |
| 704 | ret = read_extcsd(fd, ext_csd); |
| 705 | if (ret) { |
| 706 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 707 | exit(1); |
| 708 | } |
| 709 | |
| 710 | /* assert not PARTITION_SETTING_COMPLETED */ |
| 711 | if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED]) { |
| 712 | printf(" Device is already partitioned\n"); |
| 713 | exit(1); |
| 714 | } |
| 715 | |
| 716 | align = 512l * get_hc_wp_grp_size(ext_csd) * get_hc_erase_grp_size(ext_csd); |
| 717 | gp_size_mult = (length_kib + align/2l) / align; |
| 718 | |
| 719 | /* set EXT_CSD_ERASE_GROUP_DEF bit 0 */ |
| 720 | ret = write_extcsd_value(fd, EXT_CSD_ERASE_GROUP_DEF, 0x1); |
| 721 | if (ret) { |
| 722 | fprintf(stderr, "Could not write 0x1 to EXT_CSD[%d] in %s\n", |
| 723 | EXT_CSD_ERASE_GROUP_DEF, device); |
| 724 | exit(1); |
| 725 | } |
| 726 | |
| 727 | value = (gp_size_mult >> 16) & 0xff; |
| 728 | address = EXT_CSD_GP_SIZE_MULT_1_2 + (partition - 1) * 3; |
| 729 | ret = write_extcsd_value(fd, address, value); |
| 730 | if (ret) { |
| 731 | fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 732 | value, address, device); |
| 733 | exit(1); |
| 734 | } |
| 735 | value = (gp_size_mult >> 8) & 0xff; |
| 736 | address = EXT_CSD_GP_SIZE_MULT_1_1 + (partition - 1) * 3; |
| 737 | ret = write_extcsd_value(fd, address, value); |
| 738 | if (ret) { |
| 739 | fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 740 | value, address, device); |
| 741 | exit(1); |
| 742 | } |
| 743 | value = gp_size_mult & 0xff; |
| 744 | address = EXT_CSD_GP_SIZE_MULT_1_0 + (partition - 1) * 3; |
| 745 | ret = write_extcsd_value(fd, address, value); |
| 746 | if (ret) { |
| 747 | fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 748 | value, address, device); |
| 749 | exit(1); |
| 750 | } |
| 751 | |
| 752 | value = ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE]; |
| 753 | if (enh_attr) |
| 754 | value |= (1 << partition); |
| 755 | else |
| 756 | value &= ~(1 << partition); |
| 757 | |
| 758 | ret = write_extcsd_value(fd, EXT_CSD_PARTITIONS_ATTRIBUTE, value); |
| 759 | if (ret) { |
| 760 | fprintf(stderr, "Could not write EXT_CSD_ENH_%x to EXT_CSD[%d] in %s\n", |
| 761 | partition, EXT_CSD_PARTITIONS_ATTRIBUTE, device); |
| 762 | exit(1); |
| 763 | } |
| 764 | |
| 765 | address = EXT_CSD_EXT_PARTITIONS_ATTRIBUTE_0 + (partition - 1) / 2; |
| 766 | value = ext_csd[address]; |
| 767 | if (ext_attr) |
| 768 | value |= (ext_attr << (4 * ((partition - 1) % 2))); |
| 769 | else |
| 770 | value &= (0xF << (4 * ((partition % 2)))); |
| 771 | |
| 772 | ret = write_extcsd_value(fd, address, value); |
| 773 | if (ret) { |
| 774 | fprintf(stderr, "Could not write 0x%x to EXT_CSD[%d] in %s\n", |
| 775 | value, address, device); |
| 776 | exit(1); |
| 777 | } |
| 778 | |
| 779 | ret = check_enhanced_area_total_limit(device, fd); |
| 780 | if (ret) |
| 781 | exit(1); |
| 782 | |
| 783 | if (!set_partitioning_setting_completed(dry_run, device, fd)) |
| 784 | exit(1); |
Balaji T K | 4afc8c8 | 2015-04-29 18:12:32 -0400 | [diff] [blame] | 785 | |
| 786 | return 0; |
| 787 | } |
| 788 | |
Ben Gardiner | d91d369 | 2013-05-30 17:12:51 -0400 | [diff] [blame] | 789 | int do_enh_area_set(int nargs, char **argv) |
| 790 | { |
| 791 | __u8 value; |
| 792 | __u8 ext_csd[512]; |
| 793 | int fd, ret; |
| 794 | char *device; |
| 795 | int dry_run = 1; |
| 796 | unsigned int start_kib, length_kib, enh_start_addr, enh_size_mult; |
| 797 | unsigned long align; |
| 798 | |
| 799 | CHECK(nargs != 5, "Usage: mmc enh_area set <-y|-n> <start KiB> <length KiB> " |
| 800 | "</path/to/mmcblkX>\n", exit(1)); |
| 801 | |
| 802 | if (!strcmp("-y", argv[1])) |
| 803 | dry_run = 0; |
| 804 | |
| 805 | start_kib = strtol(argv[2], NULL, 10); |
| 806 | length_kib = strtol(argv[3], NULL, 10); |
| 807 | device = argv[4]; |
| 808 | |
| 809 | fd = open(device, O_RDWR); |
| 810 | if (fd < 0) { |
| 811 | perror("open"); |
| 812 | exit(1); |
| 813 | } |
| 814 | |
| 815 | ret = read_extcsd(fd, ext_csd); |
| 816 | if (ret) { |
| 817 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 818 | exit(1); |
| 819 | } |
| 820 | |
| 821 | /* assert ENH_ATTRIBUTE_EN */ |
| 822 | if (!(ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & EXT_CSD_ENH_ATTRIBUTE_EN)) |
| 823 | { |
| 824 | printf(" Device cannot have enhanced tech.\n"); |
| 825 | exit(1); |
| 826 | } |
| 827 | |
| 828 | /* assert not PARTITION_SETTING_COMPLETED */ |
| 829 | if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED]) |
| 830 | { |
| 831 | printf(" Device is already partitioned\n"); |
| 832 | exit(1); |
| 833 | } |
| 834 | |
| 835 | align = 512l * get_hc_wp_grp_size(ext_csd) * get_hc_erase_grp_size(ext_csd); |
| 836 | |
| 837 | enh_size_mult = (length_kib + align/2l) / align; |
| 838 | |
| 839 | enh_start_addr = start_kib * 1024 / (is_blockaddresed(ext_csd) ? 512 : 1); |
| 840 | enh_start_addr /= align; |
| 841 | enh_start_addr *= align; |
| 842 | |
| 843 | /* set EXT_CSD_ERASE_GROUP_DEF bit 0 */ |
| 844 | ret = write_extcsd_value(fd, EXT_CSD_ERASE_GROUP_DEF, 0x1); |
| 845 | if (ret) { |
| 846 | fprintf(stderr, "Could not write 0x1 to " |
| 847 | "EXT_CSD[%d] in %s\n", |
| 848 | EXT_CSD_ERASE_GROUP_DEF, device); |
| 849 | exit(1); |
| 850 | } |
| 851 | |
| 852 | /* write to ENH_START_ADDR and ENH_SIZE_MULT and PARTITIONS_ATTRIBUTE's ENH_USR bit */ |
| 853 | value = (enh_start_addr >> 24) & 0xff; |
| 854 | ret = write_extcsd_value(fd, EXT_CSD_ENH_START_ADDR_3, value); |
| 855 | if (ret) { |
| 856 | fprintf(stderr, "Could not write 0x%02x to " |
| 857 | "EXT_CSD[%d] in %s\n", value, |
| 858 | EXT_CSD_ENH_START_ADDR_3, device); |
| 859 | exit(1); |
| 860 | } |
| 861 | value = (enh_start_addr >> 16) & 0xff; |
| 862 | ret = write_extcsd_value(fd, EXT_CSD_ENH_START_ADDR_2, value); |
| 863 | if (ret) { |
| 864 | fprintf(stderr, "Could not write 0x%02x to " |
| 865 | "EXT_CSD[%d] in %s\n", value, |
| 866 | EXT_CSD_ENH_START_ADDR_2, device); |
| 867 | exit(1); |
| 868 | } |
| 869 | value = (enh_start_addr >> 8) & 0xff; |
| 870 | ret = write_extcsd_value(fd, EXT_CSD_ENH_START_ADDR_1, value); |
| 871 | if (ret) { |
| 872 | fprintf(stderr, "Could not write 0x%02x to " |
| 873 | "EXT_CSD[%d] in %s\n", value, |
| 874 | EXT_CSD_ENH_START_ADDR_1, device); |
| 875 | exit(1); |
| 876 | } |
| 877 | value = enh_start_addr & 0xff; |
| 878 | ret = write_extcsd_value(fd, EXT_CSD_ENH_START_ADDR_0, value); |
| 879 | if (ret) { |
| 880 | fprintf(stderr, "Could not write 0x%02x to " |
| 881 | "EXT_CSD[%d] in %s\n", value, |
| 882 | EXT_CSD_ENH_START_ADDR_0, device); |
| 883 | exit(1); |
| 884 | } |
| 885 | |
| 886 | value = (enh_size_mult >> 16) & 0xff; |
| 887 | ret = write_extcsd_value(fd, EXT_CSD_ENH_SIZE_MULT_2, value); |
| 888 | if (ret) { |
| 889 | fprintf(stderr, "Could not write 0x%02x to " |
| 890 | "EXT_CSD[%d] in %s\n", value, |
| 891 | EXT_CSD_ENH_SIZE_MULT_2, device); |
| 892 | exit(1); |
| 893 | } |
| 894 | value = (enh_size_mult >> 8) & 0xff; |
| 895 | ret = write_extcsd_value(fd, EXT_CSD_ENH_SIZE_MULT_1, value); |
| 896 | if (ret) { |
| 897 | fprintf(stderr, "Could not write 0x%02x to " |
| 898 | "EXT_CSD[%d] in %s\n", value, |
| 899 | EXT_CSD_ENH_SIZE_MULT_1, device); |
| 900 | exit(1); |
| 901 | } |
| 902 | value = enh_size_mult & 0xff; |
| 903 | ret = write_extcsd_value(fd, EXT_CSD_ENH_SIZE_MULT_0, value); |
| 904 | if (ret) { |
| 905 | fprintf(stderr, "Could not write 0x%02x to " |
| 906 | "EXT_CSD[%d] in %s\n", value, |
| 907 | EXT_CSD_ENH_SIZE_MULT_0, device); |
| 908 | exit(1); |
| 909 | } |
Balaji T K | 4afc8c8 | 2015-04-29 18:12:32 -0400 | [diff] [blame] | 910 | value = ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] | EXT_CSD_ENH_USR; |
| 911 | ret = write_extcsd_value(fd, EXT_CSD_PARTITIONS_ATTRIBUTE, value); |
Ben Gardiner | d91d369 | 2013-05-30 17:12:51 -0400 | [diff] [blame] | 912 | if (ret) { |
| 913 | fprintf(stderr, "Could not write EXT_CSD_ENH_USR to " |
| 914 | "EXT_CSD[%d] in %s\n", |
| 915 | EXT_CSD_PARTITIONS_ATTRIBUTE, device); |
| 916 | exit(1); |
| 917 | } |
| 918 | |
Balaji T K | 4afc8c8 | 2015-04-29 18:12:32 -0400 | [diff] [blame] | 919 | ret = check_enhanced_area_total_limit(device, fd); |
| 920 | if (ret) |
| 921 | exit(1); |
| 922 | |
Ben Gardiner | e6e84e9 | 2013-09-19 11:14:27 -0400 | [diff] [blame] | 923 | printf("Done setting ENH_USR area on %s\n", device); |
Ben Gardiner | d91d369 | 2013-05-30 17:12:51 -0400 | [diff] [blame] | 924 | |
Ben Gardiner | e6e84e9 | 2013-09-19 11:14:27 -0400 | [diff] [blame] | 925 | if (!set_partitioning_setting_completed(dry_run, device, fd)) |
Ben Gardiner | d91d369 | 2013-05-30 17:12:51 -0400 | [diff] [blame] | 926 | exit(1); |
Ben Gardiner | d91d369 | 2013-05-30 17:12:51 -0400 | [diff] [blame] | 927 | |
| 928 | return 0; |
| 929 | } |
| 930 | |
Ben Gardiner | 196d0d2 | 2013-09-19 11:14:29 -0400 | [diff] [blame] | 931 | int do_write_reliability_set(int nargs, char **argv) |
| 932 | { |
| 933 | __u8 value; |
| 934 | __u8 ext_csd[512]; |
| 935 | int fd, ret; |
| 936 | |
| 937 | int dry_run = 1; |
| 938 | int partition; |
| 939 | char *device; |
| 940 | |
| 941 | CHECK(nargs != 4, "Usage: mmc write_reliability set <-y|-n> " |
| 942 | "<partition> </path/to/mmcblkX>\n", exit(1)); |
| 943 | |
| 944 | if (!strcmp("-y", argv[1])) |
| 945 | dry_run = 0; |
| 946 | |
| 947 | partition = strtol(argv[2], NULL, 10); |
| 948 | device = argv[3]; |
| 949 | |
| 950 | fd = open(device, O_RDWR); |
| 951 | if (fd < 0) { |
| 952 | perror("open"); |
| 953 | exit(1); |
| 954 | } |
| 955 | |
| 956 | ret = read_extcsd(fd, ext_csd); |
| 957 | if (ret) { |
| 958 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 959 | exit(1); |
| 960 | } |
| 961 | |
| 962 | /* assert not PARTITION_SETTING_COMPLETED */ |
| 963 | if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED]) |
| 964 | { |
| 965 | printf(" Device is already partitioned\n"); |
| 966 | exit(1); |
| 967 | } |
| 968 | |
| 969 | /* assert HS_CTRL_REL */ |
| 970 | if (!(ext_csd[EXT_CSD_WR_REL_PARAM] & HS_CTRL_REL)) { |
| 971 | printf("Cannot set write reliability parameters, WR_REL_SET is " |
| 972 | "read-only\n"); |
| 973 | exit(1); |
| 974 | } |
| 975 | |
| 976 | value = ext_csd[EXT_CSD_WR_REL_SET] | (1<<partition); |
| 977 | ret = write_extcsd_value(fd, EXT_CSD_WR_REL_SET, value); |
| 978 | if (ret) { |
| 979 | fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 980 | value, EXT_CSD_WR_REL_SET, device); |
| 981 | exit(1); |
| 982 | } |
| 983 | |
| 984 | printf("Done setting EXT_CSD_WR_REL_SET to 0x%02x on %s\n", |
| 985 | value, device); |
| 986 | |
| 987 | if (!set_partitioning_setting_completed(dry_run, device, fd)) |
| 988 | exit(1); |
| 989 | |
| 990 | return 0; |
| 991 | } |
| 992 | |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 993 | int do_read_extcsd(int nargs, char **argv) |
| 994 | { |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 995 | __u8 ext_csd[512], ext_csd_rev, reg; |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 996 | __u32 regl; |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 997 | int fd, ret; |
| 998 | char *device; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 999 | const char *str; |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 1000 | |
Chris Ball | 8ba4466 | 2012-04-19 13:22:54 -0400 | [diff] [blame] | 1001 | CHECK(nargs != 2, "Usage: mmc extcsd read </path/to/mmcblkX>\n", |
| 1002 | exit(1)); |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 1003 | |
| 1004 | device = argv[1]; |
| 1005 | |
| 1006 | fd = open(device, O_RDWR); |
| 1007 | if (fd < 0) { |
| 1008 | perror("open"); |
| 1009 | exit(1); |
| 1010 | } |
| 1011 | |
| 1012 | ret = read_extcsd(fd, ext_csd); |
| 1013 | if (ret) { |
| 1014 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 1015 | exit(1); |
| 1016 | } |
| 1017 | |
Al Cooper | d0b4644 | 2015-04-29 18:12:35 -0400 | [diff] [blame] | 1018 | ext_csd_rev = ext_csd[EXT_CSD_REV]; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1019 | |
| 1020 | switch (ext_csd_rev) { |
Al Cooper | 64c2de8 | 2015-05-01 08:24:37 -0400 | [diff] [blame] | 1021 | case 7: |
| 1022 | str = "5.0"; |
| 1023 | break; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1024 | case 6: |
| 1025 | str = "4.5"; |
| 1026 | break; |
| 1027 | case 5: |
| 1028 | str = "4.41"; |
| 1029 | break; |
| 1030 | case 3: |
| 1031 | str = "4.3"; |
| 1032 | break; |
| 1033 | case 2: |
| 1034 | str = "4.2"; |
| 1035 | break; |
| 1036 | case 1: |
| 1037 | str = "4.1"; |
| 1038 | break; |
| 1039 | case 0: |
| 1040 | str = "4.0"; |
| 1041 | break; |
| 1042 | default: |
| 1043 | goto out_free; |
| 1044 | } |
| 1045 | printf("=============================================\n"); |
| 1046 | printf(" Extended CSD rev 1.%d (MMC %s)\n", ext_csd_rev, str); |
| 1047 | printf("=============================================\n\n"); |
| 1048 | |
| 1049 | if (ext_csd_rev < 3) |
| 1050 | goto out_free; /* No ext_csd */ |
| 1051 | |
| 1052 | /* Parse the Extended CSD registers. |
| 1053 | * Reserved bit should be read as "0" in case of spec older |
| 1054 | * than A441. |
| 1055 | */ |
| 1056 | reg = ext_csd[EXT_CSD_S_CMD_SET]; |
| 1057 | printf("Card Supported Command sets [S_CMD_SET: 0x%02x]\n", reg); |
| 1058 | if (!reg) |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 1059 | printf(" - Standard MMC command sets\n"); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1060 | |
| 1061 | reg = ext_csd[EXT_CSD_HPI_FEATURE]; |
| 1062 | printf("HPI Features [HPI_FEATURE: 0x%02x]: ", reg); |
| 1063 | if (reg & EXT_CSD_HPI_SUPP) { |
| 1064 | if (reg & EXT_CSD_HPI_IMPL) |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 1065 | printf("implementation based on CMD12\n"); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1066 | else |
| 1067 | printf("implementation based on CMD13\n"); |
| 1068 | } |
| 1069 | |
| 1070 | printf("Background operations support [BKOPS_SUPPORT: 0x%02x]\n", |
| 1071 | ext_csd[502]); |
| 1072 | |
| 1073 | if (ext_csd_rev >= 6) { |
| 1074 | printf("Max Packet Read Cmd [MAX_PACKED_READS: 0x%02x]\n", |
| 1075 | ext_csd[501]); |
| 1076 | printf("Max Packet Write Cmd [MAX_PACKED_WRITES: 0x%02x]\n", |
| 1077 | ext_csd[500]); |
| 1078 | printf("Data TAG support [DATA_TAG_SUPPORT: 0x%02x]\n", |
| 1079 | ext_csd[499]); |
| 1080 | |
| 1081 | printf("Data TAG Unit Size [TAG_UNIT_SIZE: 0x%02x]\n", |
| 1082 | ext_csd[498]); |
| 1083 | printf("Tag Resources Size [TAG_RES_SIZE: 0x%02x]\n", |
| 1084 | ext_csd[497]); |
| 1085 | printf("Context Management Capabilities" |
| 1086 | " [CONTEXT_CAPABILITIES: 0x%02x]\n", ext_csd[496]); |
| 1087 | printf("Large Unit Size [LARGE_UNIT_SIZE_M1: 0x%02x]\n", |
| 1088 | ext_csd[495]); |
| 1089 | printf("Extended partition attribute support" |
| 1090 | " [EXT_SUPPORT: 0x%02x]\n", ext_csd[494]); |
| 1091 | printf("Generic CMD6 Timer [GENERIC_CMD6_TIME: 0x%02x]\n", |
| 1092 | ext_csd[248]); |
| 1093 | printf("Power off notification [POWER_OFF_LONG_TIME: 0x%02x]\n", |
| 1094 | ext_csd[247]); |
| 1095 | printf("Cache Size [CACHE_SIZE] is %d KiB\n", |
| 1096 | ext_csd[249] << 0 | (ext_csd[250] << 8) | |
| 1097 | (ext_csd[251] << 16) | (ext_csd[252] << 24)); |
| 1098 | } |
| 1099 | |
| 1100 | /* A441: Reserved [501:247] |
| 1101 | A43: reserved [246:229] */ |
| 1102 | if (ext_csd_rev >= 5) { |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1103 | printf("Background operations status" |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 1104 | " [BKOPS_STATUS: 0x%02x]\n", ext_csd[246]); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1105 | |
| 1106 | /* CORRECTLY_PRG_SECTORS_NUM [245:242] TODO */ |
| 1107 | |
| 1108 | printf("1st Initialisation Time after programmed sector" |
| 1109 | " [INI_TIMEOUT_AP: 0x%02x]\n", ext_csd[241]); |
| 1110 | |
| 1111 | /* A441: reserved [240] */ |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1112 | printf("Power class for 52MHz, DDR at 3.6V" |
| 1113 | " [PWR_CL_DDR_52_360: 0x%02x]\n", ext_csd[239]); |
| 1114 | printf("Power class for 52MHz, DDR at 1.95V" |
| 1115 | " [PWR_CL_DDR_52_195: 0x%02x]\n", ext_csd[238]); |
| 1116 | |
| 1117 | /* A441: reserved [237-236] */ |
| 1118 | |
| 1119 | if (ext_csd_rev >= 6) { |
| 1120 | printf("Power class for 200MHz at 3.6V" |
| 1121 | " [PWR_CL_200_360: 0x%02x]\n", ext_csd[237]); |
| 1122 | printf("Power class for 200MHz, at 1.95V" |
| 1123 | " [PWR_CL_200_195: 0x%02x]\n", ext_csd[236]); |
| 1124 | } |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 1125 | printf("Minimum Performance for 8bit at 52MHz in DDR mode:\n"); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1126 | printf(" [MIN_PERF_DDR_W_8_52: 0x%02x]\n", ext_csd[235]); |
| 1127 | printf(" [MIN_PERF_DDR_R_8_52: 0x%02x]\n", ext_csd[234]); |
| 1128 | /* A441: reserved [233] */ |
| 1129 | printf("TRIM Multiplier [TRIM_MULT: 0x%02x]\n", ext_csd[232]); |
| 1130 | printf("Secure Feature support [SEC_FEATURE_SUPPORT: 0x%02x]\n", |
| 1131 | ext_csd[231]); |
| 1132 | } |
| 1133 | if (ext_csd_rev == 5) { /* Obsolete in 4.5 */ |
| 1134 | printf("Secure Erase Multiplier [SEC_ERASE_MULT: 0x%02x]\n", |
| 1135 | ext_csd[230]); |
| 1136 | printf("Secure TRIM Multiplier [SEC_TRIM_MULT: 0x%02x]\n", |
| 1137 | ext_csd[229]); |
| 1138 | } |
| 1139 | reg = ext_csd[EXT_CSD_BOOT_INFO]; |
| 1140 | printf("Boot Information [BOOT_INFO: 0x%02x]\n", reg); |
| 1141 | if (reg & EXT_CSD_BOOT_INFO_ALT) |
| 1142 | printf(" Device supports alternative boot method\n"); |
| 1143 | if (reg & EXT_CSD_BOOT_INFO_DDR_DDR) |
| 1144 | printf(" Device supports dual data rate during boot\n"); |
| 1145 | if (reg & EXT_CSD_BOOT_INFO_HS_MODE) |
| 1146 | printf(" Device supports high speed timing during boot\n"); |
| 1147 | |
| 1148 | /* A441/A43: reserved [227] */ |
| 1149 | printf("Boot partition size [BOOT_SIZE_MULTI: 0x%02x]\n", ext_csd[226]); |
| 1150 | printf("Access size [ACC_SIZE: 0x%02x]\n", ext_csd[225]); |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 1151 | |
| 1152 | reg = get_hc_erase_grp_size(ext_csd); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1153 | printf("High-capacity erase unit size [HC_ERASE_GRP_SIZE: 0x%02x]\n", |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 1154 | reg); |
| 1155 | printf(" i.e. %u KiB\n", 512 * reg); |
| 1156 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1157 | printf("High-capacity erase timeout [ERASE_TIMEOUT_MULT: 0x%02x]\n", |
| 1158 | ext_csd[223]); |
| 1159 | printf("Reliable write sector count [REL_WR_SEC_C: 0x%02x]\n", |
| 1160 | ext_csd[222]); |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 1161 | |
| 1162 | reg = get_hc_wp_grp_size(ext_csd); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1163 | printf("High-capacity W protect group size [HC_WP_GRP_SIZE: 0x%02x]\n", |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 1164 | reg); |
| 1165 | printf(" i.e. %lu KiB\n", 512l * get_hc_erase_grp_size(ext_csd) * reg); |
| 1166 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1167 | printf("Sleep current (VCC) [S_C_VCC: 0x%02x]\n", ext_csd[220]); |
| 1168 | printf("Sleep current (VCCQ) [S_C_VCCQ: 0x%02x]\n", ext_csd[219]); |
| 1169 | /* A441/A43: reserved [218] */ |
| 1170 | printf("Sleep/awake timeout [S_A_TIMEOUT: 0x%02x]\n", ext_csd[217]); |
| 1171 | /* A441/A43: reserved [216] */ |
Ben Gardiner | 4e85023 | 2013-05-30 17:12:49 -0400 | [diff] [blame] | 1172 | |
| 1173 | unsigned int sectors = get_sector_count(ext_csd); |
| 1174 | printf("Sector Count [SEC_COUNT: 0x%08x]\n", sectors); |
| 1175 | if (is_blockaddresed(ext_csd)) |
| 1176 | printf(" Device is block-addressed\n"); |
| 1177 | else |
| 1178 | printf(" Device is NOT block-addressed\n"); |
| 1179 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1180 | /* A441/A43: reserved [211] */ |
| 1181 | printf("Minimum Write Performance for 8bit:\n"); |
| 1182 | printf(" [MIN_PERF_W_8_52: 0x%02x]\n", ext_csd[210]); |
| 1183 | printf(" [MIN_PERF_R_8_52: 0x%02x]\n", ext_csd[209]); |
| 1184 | printf(" [MIN_PERF_W_8_26_4_52: 0x%02x]\n", ext_csd[208]); |
| 1185 | printf(" [MIN_PERF_R_8_26_4_52: 0x%02x]\n", ext_csd[207]); |
| 1186 | printf("Minimum Write Performance for 4bit:\n"); |
| 1187 | printf(" [MIN_PERF_W_4_26: 0x%02x]\n", ext_csd[206]); |
| 1188 | printf(" [MIN_PERF_R_4_26: 0x%02x]\n", ext_csd[205]); |
| 1189 | /* A441/A43: reserved [204] */ |
| 1190 | printf("Power classes registers:\n"); |
| 1191 | printf(" [PWR_CL_26_360: 0x%02x]\n", ext_csd[203]); |
| 1192 | printf(" [PWR_CL_52_360: 0x%02x]\n", ext_csd[202]); |
| 1193 | printf(" [PWR_CL_26_195: 0x%02x]\n", ext_csd[201]); |
| 1194 | printf(" [PWR_CL_52_195: 0x%02x]\n", ext_csd[200]); |
| 1195 | |
| 1196 | /* A43: reserved [199:198] */ |
| 1197 | if (ext_csd_rev >= 5) { |
| 1198 | printf("Partition switching timing " |
| 1199 | "[PARTITION_SWITCH_TIME: 0x%02x]\n", ext_csd[199]); |
| 1200 | printf("Out-of-interrupt busy timing" |
| 1201 | " [OUT_OF_INTERRUPT_TIME: 0x%02x]\n", ext_csd[198]); |
| 1202 | } |
| 1203 | |
| 1204 | /* A441/A43: reserved [197] [195] [193] [190] [188] |
| 1205 | * [186] [184] [182] [180] [176] */ |
| 1206 | |
| 1207 | if (ext_csd_rev >= 6) |
| 1208 | printf("I/O Driver Strength [DRIVER_STRENGTH: 0x%02x]\n", |
| 1209 | ext_csd[197]); |
| 1210 | |
Oleg Matcovschi | 64f63a3 | 2013-05-23 17:11:07 -0700 | [diff] [blame] | 1211 | /* DEVICE_TYPE in A45, CARD_TYPE in A441 */ |
| 1212 | reg = ext_csd[196]; |
| 1213 | printf("Card Type [CARD_TYPE: 0x%02x]\n", reg); |
| 1214 | if (reg & 0x20) printf(" HS200 Single Data Rate eMMC @200MHz 1.2VI/O\n"); |
| 1215 | if (reg & 0x10) printf(" HS200 Single Data Rate eMMC @200MHz 1.8VI/O\n"); |
| 1216 | if (reg & 0x08) printf(" HS Dual Data Rate eMMC @52MHz 1.2VI/O\n"); |
| 1217 | if (reg & 0x04) printf(" HS Dual Data Rate eMMC @52MHz 1.8V or 3VI/O\n"); |
| 1218 | if (reg & 0x02) printf(" HS eMMC @52MHz - at rated device voltage(s)\n"); |
| 1219 | if (reg & 0x01) printf(" HS eMMC @26MHz - at rated device voltage(s)\n"); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1220 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1221 | printf("CSD structure version [CSD_STRUCTURE: 0x%02x]\n", ext_csd[194]); |
Al Cooper | d0b4644 | 2015-04-29 18:12:35 -0400 | [diff] [blame] | 1222 | /* ext_csd_rev = ext_csd[EXT_CSD_REV] (already done!!!) */ |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1223 | printf("Command set [CMD_SET: 0x%02x]\n", ext_csd[191]); |
| 1224 | printf("Command set revision [CMD_SET_REV: 0x%02x]\n", ext_csd[189]); |
| 1225 | printf("Power class [POWER_CLASS: 0x%02x]\n", ext_csd[187]); |
| 1226 | printf("High-speed interface timing [HS_TIMING: 0x%02x]\n", |
| 1227 | ext_csd[185]); |
| 1228 | /* bus_width: ext_csd[183] not readable */ |
| 1229 | printf("Erased memory content [ERASED_MEM_CONT: 0x%02x]\n", |
| 1230 | ext_csd[181]); |
| 1231 | reg = ext_csd[EXT_CSD_BOOT_CFG]; |
| 1232 | printf("Boot configuration bytes [PARTITION_CONFIG: 0x%02x]\n", reg); |
Mario Schuknecht | 8c0c40d | 2013-05-15 08:28:04 +0200 | [diff] [blame] | 1233 | switch ((reg & EXT_CSD_BOOT_CFG_EN)>>3) { |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1234 | case 0x0: |
| 1235 | printf(" Not boot enable\n"); |
| 1236 | break; |
| 1237 | case 0x1: |
| 1238 | printf(" Boot Partition 1 enabled\n"); |
| 1239 | break; |
| 1240 | case 0x2: |
| 1241 | printf(" Boot Partition 2 enabled\n"); |
| 1242 | break; |
| 1243 | case 0x7: |
| 1244 | printf(" User Area Enabled for boot\n"); |
| 1245 | break; |
| 1246 | } |
| 1247 | switch (reg & EXT_CSD_BOOT_CFG_ACC) { |
| 1248 | case 0x0: |
| 1249 | printf(" No access to boot partition\n"); |
| 1250 | break; |
| 1251 | case 0x1: |
| 1252 | printf(" R/W Boot Partition 1\n"); |
| 1253 | break; |
| 1254 | case 0x2: |
| 1255 | printf(" R/W Boot Partition 2\n"); |
| 1256 | break; |
Mario Schuknecht | 8c0c40d | 2013-05-15 08:28:04 +0200 | [diff] [blame] | 1257 | case 0x3: |
| 1258 | printf(" R/W Replay Protected Memory Block (RPMB)\n"); |
| 1259 | break; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1260 | default: |
Mario Schuknecht | 8c0c40d | 2013-05-15 08:28:04 +0200 | [diff] [blame] | 1261 | printf(" Access to General Purpose partition %d\n", |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1262 | (reg & EXT_CSD_BOOT_CFG_ACC) - 3); |
| 1263 | break; |
| 1264 | } |
| 1265 | |
| 1266 | printf("Boot config protection [BOOT_CONFIG_PROT: 0x%02x]\n", |
| 1267 | ext_csd[178]); |
| 1268 | printf("Boot bus Conditions [BOOT_BUS_CONDITIONS: 0x%02x]\n", |
| 1269 | ext_csd[177]); |
| 1270 | printf("High-density erase group definition" |
Ben Gardiner | d91d369 | 2013-05-30 17:12:51 -0400 | [diff] [blame] | 1271 | " [ERASE_GROUP_DEF: 0x%02x]\n", ext_csd[EXT_CSD_ERASE_GROUP_DEF]); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1272 | |
Chris Ball | b9c7a17 | 2012-02-20 12:34:25 -0500 | [diff] [blame] | 1273 | print_writeprotect_status(ext_csd); |
| 1274 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1275 | if (ext_csd_rev >= 5) { |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1276 | /* A441]: reserved [172] */ |
| 1277 | printf("User area write protection register" |
| 1278 | " [USER_WP]: 0x%02x\n", ext_csd[171]); |
| 1279 | /* A441]: reserved [170] */ |
| 1280 | printf("FW configuration [FW_CONFIG]: 0x%02x\n", ext_csd[169]); |
| 1281 | printf("RPMB Size [RPMB_SIZE_MULT]: 0x%02x\n", ext_csd[168]); |
Ben Gardiner | 4da1c0d | 2013-09-19 11:14:28 -0400 | [diff] [blame] | 1282 | |
| 1283 | reg = ext_csd[EXT_CSD_WR_REL_SET]; |
| 1284 | const char * const fast = "existing data is at risk if a power " |
| 1285 | "failure occurs during a write operation"; |
| 1286 | const char * const reliable = "the device protects existing " |
| 1287 | "data if a power failure occurs during a write " |
| 1288 | "operation"; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1289 | printf("Write reliability setting register" |
Ben Gardiner | 4da1c0d | 2013-09-19 11:14:28 -0400 | [diff] [blame] | 1290 | " [WR_REL_SET]: 0x%02x\n", reg); |
| 1291 | |
| 1292 | printf(" user area: %s\n", reg & (1<<0) ? reliable : fast); |
| 1293 | int i; |
| 1294 | for (i = 1; i <= 4; i++) { |
| 1295 | printf(" partition %d: %s\n", i, |
| 1296 | reg & (1<<i) ? reliable : fast); |
| 1297 | } |
| 1298 | |
| 1299 | reg = ext_csd[EXT_CSD_WR_REL_PARAM]; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1300 | printf("Write reliability parameter register" |
Ben Gardiner | 4da1c0d | 2013-09-19 11:14:28 -0400 | [diff] [blame] | 1301 | " [WR_REL_PARAM]: 0x%02x\n", reg); |
| 1302 | if (reg & 0x01) |
| 1303 | printf(" Device supports writing EXT_CSD_WR_REL_SET\n"); |
| 1304 | if (reg & 0x04) |
| 1305 | printf(" Device supports the enhanced def. of reliable " |
| 1306 | "write\n"); |
| 1307 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1308 | /* sanitize_start ext_csd[165]]: not readable |
| 1309 | * bkops_start ext_csd[164]]: only writable */ |
| 1310 | printf("Enable background operations handshake" |
| 1311 | " [BKOPS_EN]: 0x%02x\n", ext_csd[163]); |
| 1312 | printf("H/W reset function" |
| 1313 | " [RST_N_FUNCTION]: 0x%02x\n", ext_csd[162]); |
| 1314 | printf("HPI management [HPI_MGMT]: 0x%02x\n", ext_csd[161]); |
Ben Gardiner | 82bd950 | 2013-06-27 11:04:10 -0400 | [diff] [blame] | 1315 | reg = ext_csd[EXT_CSD_PARTITIONING_SUPPORT]; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1316 | printf("Partitioning Support [PARTITIONING_SUPPORT]: 0x%02x\n", |
| 1317 | reg); |
Ben Gardiner | 82bd950 | 2013-06-27 11:04:10 -0400 | [diff] [blame] | 1318 | if (reg & EXT_CSD_PARTITIONING_EN) |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1319 | printf(" Device support partitioning feature\n"); |
| 1320 | else |
| 1321 | printf(" Device NOT support partitioning feature\n"); |
Ben Gardiner | 82bd950 | 2013-06-27 11:04:10 -0400 | [diff] [blame] | 1322 | if (reg & EXT_CSD_ENH_ATTRIBUTE_EN) |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1323 | printf(" Device can have enhanced tech.\n"); |
| 1324 | else |
| 1325 | printf(" Device cannot have enhanced tech.\n"); |
| 1326 | |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 1327 | regl = (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_2] << 16) | |
Oliver Metz | 22f2641 | 2013-09-23 08:40:51 +0200 | [diff] [blame] | 1328 | (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_1] << 8) | |
| 1329 | ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_0]; |
| 1330 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1331 | printf("Max Enhanced Area Size [MAX_ENH_SIZE_MULT]: 0x%06x\n", |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 1332 | regl); |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 1333 | unsigned int wp_sz = get_hc_wp_grp_size(ext_csd); |
| 1334 | unsigned int erase_sz = get_hc_erase_grp_size(ext_csd); |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 1335 | printf(" i.e. %lu KiB\n", 512l * regl * wp_sz * erase_sz); |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 1336 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1337 | printf("Partitions attribute [PARTITIONS_ATTRIBUTE]: 0x%02x\n", |
Ben Gardiner | d91d369 | 2013-05-30 17:12:51 -0400 | [diff] [blame] | 1338 | ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE]); |
Ben Gardiner | a6cd98d | 2013-05-30 17:12:46 -0400 | [diff] [blame] | 1339 | reg = ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED]; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1340 | printf("Partitioning Setting" |
| 1341 | " [PARTITION_SETTING_COMPLETED]: 0x%02x\n", |
Ben Gardiner | a6cd98d | 2013-05-30 17:12:46 -0400 | [diff] [blame] | 1342 | reg); |
| 1343 | if (reg) |
| 1344 | printf(" Device partition setting complete\n"); |
| 1345 | else |
| 1346 | printf(" Device partition setting NOT complete\n"); |
| 1347 | |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1348 | printf("General Purpose Partition Size\n" |
| 1349 | " [GP_SIZE_MULT_4]: 0x%06x\n", (ext_csd[154] << 16) | |
| 1350 | (ext_csd[153] << 8) | ext_csd[152]); |
| 1351 | printf(" [GP_SIZE_MULT_3]: 0x%06x\n", (ext_csd[151] << 16) | |
| 1352 | (ext_csd[150] << 8) | ext_csd[149]); |
| 1353 | printf(" [GP_SIZE_MULT_2]: 0x%06x\n", (ext_csd[148] << 16) | |
| 1354 | (ext_csd[147] << 8) | ext_csd[146]); |
| 1355 | printf(" [GP_SIZE_MULT_1]: 0x%06x\n", (ext_csd[145] << 16) | |
| 1356 | (ext_csd[144] << 8) | ext_csd[143]); |
| 1357 | |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 1358 | regl = (ext_csd[EXT_CSD_ENH_SIZE_MULT_2] << 16) | |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 1359 | (ext_csd[EXT_CSD_ENH_SIZE_MULT_1] << 8) | |
| 1360 | ext_csd[EXT_CSD_ENH_SIZE_MULT_0]; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1361 | printf("Enhanced User Data Area Size" |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 1362 | " [ENH_SIZE_MULT]: 0x%06x\n", regl); |
| 1363 | printf(" i.e. %lu KiB\n", 512l * regl * |
Ben Gardiner | f82e27a | 2013-05-30 17:12:50 -0400 | [diff] [blame] | 1364 | get_hc_erase_grp_size(ext_csd) * |
| 1365 | get_hc_wp_grp_size(ext_csd)); |
Ben Gardiner | 68f490b | 2013-05-30 17:12:48 -0400 | [diff] [blame] | 1366 | |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 1367 | regl = (ext_csd[EXT_CSD_ENH_START_ADDR_3] << 24) | |
Ben Gardiner | 68f490b | 2013-05-30 17:12:48 -0400 | [diff] [blame] | 1368 | (ext_csd[EXT_CSD_ENH_START_ADDR_2] << 16) | |
| 1369 | (ext_csd[EXT_CSD_ENH_START_ADDR_1] << 8) | |
| 1370 | ext_csd[EXT_CSD_ENH_START_ADDR_0]; |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1371 | printf("Enhanced User Data Start Address" |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 1372 | " [ENH_START_ADDR]: 0x%06x\n", regl); |
Ben Gardiner | 4e85023 | 2013-05-30 17:12:49 -0400 | [diff] [blame] | 1373 | printf(" i.e. %lu bytes offset\n", (is_blockaddresed(ext_csd) ? |
Oliver Metz | 11f2cea | 2013-09-23 08:40:52 +0200 | [diff] [blame] | 1374 | 1l : 512l) * regl); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1375 | |
| 1376 | /* A441]: reserved [135] */ |
| 1377 | printf("Bad Block Management mode" |
| 1378 | " [SEC_BAD_BLK_MGMNT]: 0x%02x\n", ext_csd[134]); |
| 1379 | /* A441: reserved [133:0] */ |
| 1380 | } |
| 1381 | /* B45 */ |
| 1382 | if (ext_csd_rev >= 6) { |
| 1383 | int j; |
| 1384 | /* tcase_support ext_csd[132] not readable */ |
| 1385 | printf("Periodic Wake-up [PERIODIC_WAKEUP]: 0x%02x\n", |
| 1386 | ext_csd[131]); |
| 1387 | printf("Program CID/CSD in DDR mode support" |
| 1388 | " [PROGRAM_CID_CSD_DDR_SUPPORT]: 0x%02x\n", |
| 1389 | ext_csd[130]); |
| 1390 | |
| 1391 | for (j = 127; j >= 64; j--) |
| 1392 | printf("Vendor Specific Fields" |
| 1393 | " [VENDOR_SPECIFIC_FIELD[%d]]: 0x%02x\n", |
| 1394 | j, ext_csd[j]); |
| 1395 | |
| 1396 | printf("Native sector size [NATIVE_SECTOR_SIZE]: 0x%02x\n", |
| 1397 | ext_csd[63]); |
| 1398 | printf("Sector size emulation [USE_NATIVE_SECTOR]: 0x%02x\n", |
| 1399 | ext_csd[62]); |
| 1400 | printf("Sector size [DATA_SECTOR_SIZE]: 0x%02x\n", ext_csd[61]); |
| 1401 | printf("1st initialization after disabling sector" |
| 1402 | " size emulation [INI_TIMEOUT_EMU]: 0x%02x\n", |
| 1403 | ext_csd[60]); |
| 1404 | printf("Class 6 commands control [CLASS_6_CTRL]: 0x%02x\n", |
| 1405 | ext_csd[59]); |
| 1406 | printf("Number of addressed group to be Released" |
| 1407 | "[DYNCAP_NEEDED]: 0x%02x\n", ext_csd[58]); |
| 1408 | printf("Exception events control" |
| 1409 | " [EXCEPTION_EVENTS_CTRL]: 0x%04x\n", |
| 1410 | (ext_csd[57] << 8) | ext_csd[56]); |
| 1411 | printf("Exception events status" |
| 1412 | "[EXCEPTION_EVENTS_STATUS]: 0x%04x\n", |
| 1413 | (ext_csd[55] << 8) | ext_csd[54]); |
| 1414 | printf("Extended Partitions Attribute" |
| 1415 | " [EXT_PARTITIONS_ATTRIBUTE]: 0x%04x\n", |
| 1416 | (ext_csd[53] << 8) | ext_csd[52]); |
| 1417 | |
| 1418 | for (j = 51; j >= 37; j--) |
| 1419 | printf("Context configuration" |
| 1420 | " [CONTEXT_CONF[%d]]: 0x%02x\n", j, ext_csd[j]); |
| 1421 | |
| 1422 | printf("Packed command status" |
| 1423 | " [PACKED_COMMAND_STATUS]: 0x%02x\n", ext_csd[36]); |
| 1424 | printf("Packed command failure index" |
| 1425 | " [PACKED_FAILURE_INDEX]: 0x%02x\n", ext_csd[35]); |
| 1426 | printf("Power Off Notification" |
| 1427 | " [POWER_OFF_NOTIFICATION]: 0x%02x\n", ext_csd[34]); |
Oleg Matcovschi | 64f63a3 | 2013-05-23 17:11:07 -0700 | [diff] [blame] | 1428 | printf("Control to turn the Cache ON/OFF" |
| 1429 | " [CACHE_CTRL]: 0x%02x\n", ext_csd[33]); |
Giuseppe CAVALLARO | a5bf4a2 | 2012-02-20 09:45:29 +0100 | [diff] [blame] | 1430 | /* flush_cache ext_csd[32] not readable */ |
| 1431 | /*Reserved [31:0] */ |
| 1432 | } |
| 1433 | |
| 1434 | out_free: |
Johan RUDHOLM | a8bfde7 | 2012-02-12 11:46:44 -0500 | [diff] [blame] | 1435 | return ret; |
| 1436 | } |
Yaniv Gardi | 21bb473 | 2013-05-26 13:25:33 -0400 | [diff] [blame] | 1437 | |
| 1438 | int do_sanitize(int nargs, char **argv) |
| 1439 | { |
| 1440 | int fd, ret; |
| 1441 | char *device; |
| 1442 | |
| 1443 | CHECK(nargs != 2, "Usage: mmc sanitize </path/to/mmcblkX>\n", |
| 1444 | exit(1)); |
| 1445 | |
| 1446 | device = argv[1]; |
| 1447 | |
| 1448 | fd = open(device, O_RDWR); |
| 1449 | if (fd < 0) { |
| 1450 | perror("open"); |
| 1451 | exit(1); |
| 1452 | } |
| 1453 | |
| 1454 | ret = write_extcsd_value(fd, EXT_CSD_SANITIZE_START, 1); |
| 1455 | if (ret) { |
| 1456 | fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 1457 | 1, EXT_CSD_SANITIZE_START, device); |
| 1458 | exit(1); |
| 1459 | } |
| 1460 | |
| 1461 | return ret; |
| 1462 | |
| 1463 | } |
| 1464 | |
Roman Peniaev | c6cb053 | 2014-08-12 23:25:45 +0900 | [diff] [blame] | 1465 | #define DO_IO(func, fd, buf, nbyte) \ |
| 1466 | ({ \ |
| 1467 | ssize_t ret = 0, r; \ |
| 1468 | do { \ |
| 1469 | r = func(fd, buf + ret, nbyte - ret); \ |
| 1470 | if (r < 0 && errno != EINTR) { \ |
| 1471 | ret = -1; \ |
| 1472 | break; \ |
| 1473 | } \ |
| 1474 | else if (r > 0) \ |
| 1475 | ret += r; \ |
| 1476 | } while (r != 0 && (size_t)ret != nbyte); \ |
| 1477 | \ |
| 1478 | ret; \ |
| 1479 | }) |
| 1480 | |
| 1481 | enum rpmb_op_type { |
| 1482 | MMC_RPMB_WRITE_KEY = 0x01, |
| 1483 | MMC_RPMB_READ_CNT = 0x02, |
| 1484 | MMC_RPMB_WRITE = 0x03, |
| 1485 | MMC_RPMB_READ = 0x04, |
| 1486 | |
| 1487 | /* For internal usage only, do not use it directly */ |
| 1488 | MMC_RPMB_READ_RESP = 0x05 |
| 1489 | }; |
| 1490 | |
| 1491 | struct rpmb_frame { |
| 1492 | u_int8_t stuff[196]; |
| 1493 | u_int8_t key_mac[32]; |
| 1494 | u_int8_t data[256]; |
| 1495 | u_int8_t nonce[16]; |
| 1496 | u_int32_t write_counter; |
| 1497 | u_int16_t addr; |
| 1498 | u_int16_t block_count; |
| 1499 | u_int16_t result; |
| 1500 | u_int16_t req_resp; |
| 1501 | }; |
| 1502 | |
| 1503 | /* Performs RPMB operation. |
| 1504 | * |
| 1505 | * @fd: RPMB device on which we should perform ioctl command |
| 1506 | * @frame_in: input RPMB frame, should be properly inited |
| 1507 | * @frame_out: output (result) RPMB frame. Caller is responsible for checking |
| 1508 | * result and req_resp for output frame. |
| 1509 | * @out_cnt: count of outer frames. Used only for multiple blocks reading, |
| 1510 | * in the other cases -EINVAL will be returned. |
| 1511 | */ |
| 1512 | static int do_rpmb_op(int fd, |
| 1513 | const struct rpmb_frame *frame_in, |
| 1514 | struct rpmb_frame *frame_out, |
| 1515 | unsigned int out_cnt) |
| 1516 | { |
| 1517 | int err; |
| 1518 | u_int16_t rpmb_type; |
| 1519 | |
| 1520 | struct mmc_ioc_cmd ioc = { |
| 1521 | .arg = 0x0, |
| 1522 | .blksz = 512, |
| 1523 | .blocks = 1, |
| 1524 | .write_flag = 1, |
| 1525 | .opcode = MMC_WRITE_MULTIPLE_BLOCK, |
| 1526 | .flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC, |
| 1527 | .data_ptr = (uintptr_t)frame_in |
| 1528 | }; |
| 1529 | |
| 1530 | if (!frame_in || !frame_out || !out_cnt) |
| 1531 | return -EINVAL; |
| 1532 | |
| 1533 | rpmb_type = be16toh(frame_in->req_resp); |
| 1534 | |
| 1535 | switch(rpmb_type) { |
| 1536 | case MMC_RPMB_WRITE: |
| 1537 | case MMC_RPMB_WRITE_KEY: |
| 1538 | if (out_cnt != 1) { |
| 1539 | err = -EINVAL; |
| 1540 | goto out; |
| 1541 | } |
| 1542 | |
| 1543 | /* Write request */ |
| 1544 | ioc.write_flag |= (1<<31); |
| 1545 | err = ioctl(fd, MMC_IOC_CMD, &ioc); |
| 1546 | if (err < 0) { |
| 1547 | err = -errno; |
| 1548 | goto out; |
| 1549 | } |
| 1550 | |
| 1551 | /* Result request */ |
| 1552 | memset(frame_out, 0, sizeof(*frame_out)); |
| 1553 | frame_out->req_resp = htobe16(MMC_RPMB_READ_RESP); |
| 1554 | ioc.write_flag = 1; |
| 1555 | ioc.data_ptr = (uintptr_t)frame_out; |
| 1556 | err = ioctl(fd, MMC_IOC_CMD, &ioc); |
| 1557 | if (err < 0) { |
| 1558 | err = -errno; |
| 1559 | goto out; |
| 1560 | } |
| 1561 | |
| 1562 | /* Get response */ |
| 1563 | ioc.write_flag = 0; |
| 1564 | ioc.opcode = MMC_READ_MULTIPLE_BLOCK; |
| 1565 | err = ioctl(fd, MMC_IOC_CMD, &ioc); |
| 1566 | if (err < 0) { |
| 1567 | err = -errno; |
| 1568 | goto out; |
| 1569 | } |
| 1570 | |
| 1571 | break; |
| 1572 | case MMC_RPMB_READ_CNT: |
| 1573 | if (out_cnt != 1) { |
| 1574 | err = -EINVAL; |
| 1575 | goto out; |
| 1576 | } |
| 1577 | /* fall through */ |
| 1578 | |
| 1579 | case MMC_RPMB_READ: |
| 1580 | /* Request */ |
| 1581 | err = ioctl(fd, MMC_IOC_CMD, &ioc); |
| 1582 | if (err < 0) { |
| 1583 | err = -errno; |
| 1584 | goto out; |
| 1585 | } |
| 1586 | |
| 1587 | /* Get response */ |
| 1588 | ioc.write_flag = 0; |
| 1589 | ioc.opcode = MMC_READ_MULTIPLE_BLOCK; |
| 1590 | ioc.blocks = out_cnt; |
| 1591 | ioc.data_ptr = (uintptr_t)frame_out; |
| 1592 | err = ioctl(fd, MMC_IOC_CMD, &ioc); |
| 1593 | if (err < 0) { |
| 1594 | err = -errno; |
| 1595 | goto out; |
| 1596 | } |
| 1597 | |
| 1598 | break; |
| 1599 | default: |
| 1600 | err = -EINVAL; |
| 1601 | goto out; |
| 1602 | } |
| 1603 | |
| 1604 | out: |
| 1605 | return err; |
| 1606 | } |
| 1607 | |
| 1608 | int do_rpmb_write_key(int nargs, char **argv) |
| 1609 | { |
| 1610 | int ret, dev_fd, key_fd; |
| 1611 | struct rpmb_frame frame_in = { |
| 1612 | .req_resp = htobe16(MMC_RPMB_WRITE_KEY) |
| 1613 | }, frame_out; |
| 1614 | |
| 1615 | CHECK(nargs != 3, "Usage: mmc rpmb write-key </path/to/mmcblkXrpmb> </path/to/key>\n", |
| 1616 | exit(1)); |
| 1617 | |
| 1618 | dev_fd = open(argv[1], O_RDWR); |
| 1619 | if (dev_fd < 0) { |
| 1620 | perror("device open"); |
| 1621 | exit(1); |
| 1622 | } |
| 1623 | |
| 1624 | if (0 == strcmp(argv[2], "-")) |
| 1625 | key_fd = STDIN_FILENO; |
| 1626 | else { |
| 1627 | key_fd = open(argv[2], O_RDONLY); |
| 1628 | if (key_fd < 0) { |
| 1629 | perror("can't open key file"); |
| 1630 | exit(1); |
| 1631 | } |
| 1632 | } |
| 1633 | |
| 1634 | /* Read the auth key */ |
| 1635 | ret = DO_IO(read, key_fd, frame_in.key_mac, sizeof(frame_in.key_mac)); |
| 1636 | if (ret < 0) { |
| 1637 | perror("read the key"); |
| 1638 | exit(1); |
| 1639 | } else if (ret != sizeof(frame_in.key_mac)) { |
| 1640 | printf("Auth key must be %lu bytes length, but we read only %d, exit\n", |
| 1641 | (unsigned long)sizeof(frame_in.key_mac), |
| 1642 | ret); |
| 1643 | exit(1); |
| 1644 | } |
| 1645 | |
| 1646 | /* Execute RPMB op */ |
| 1647 | ret = do_rpmb_op(dev_fd, &frame_in, &frame_out, 1); |
| 1648 | if (ret != 0) { |
| 1649 | perror("RPMB ioctl failed"); |
| 1650 | exit(1); |
| 1651 | } |
| 1652 | |
| 1653 | /* Check RPMB response */ |
| 1654 | if (frame_out.result != 0) { |
| 1655 | printf("RPMB operation failed, retcode 0x%04x\n", |
| 1656 | be16toh(frame_out.result)); |
| 1657 | exit(1); |
| 1658 | } |
| 1659 | |
| 1660 | close(dev_fd); |
| 1661 | if (key_fd != STDIN_FILENO) |
| 1662 | close(key_fd); |
| 1663 | |
| 1664 | return ret; |
| 1665 | } |
| 1666 | |
| 1667 | int rpmb_read_counter(int dev_fd, unsigned int *cnt) |
| 1668 | { |
| 1669 | int ret; |
| 1670 | struct rpmb_frame frame_in = { |
| 1671 | .req_resp = htobe16(MMC_RPMB_READ_CNT) |
| 1672 | }, frame_out; |
| 1673 | |
| 1674 | /* Execute RPMB op */ |
| 1675 | ret = do_rpmb_op(dev_fd, &frame_in, &frame_out, 1); |
| 1676 | if (ret != 0) { |
| 1677 | perror("RPMB ioctl failed"); |
| 1678 | exit(1); |
| 1679 | } |
| 1680 | |
| 1681 | /* Check RPMB response */ |
| 1682 | if (frame_out.result != 0) |
| 1683 | return be16toh(frame_out.result); |
| 1684 | |
| 1685 | *cnt = be32toh(frame_out.write_counter); |
| 1686 | |
| 1687 | return 0; |
| 1688 | } |
| 1689 | |
| 1690 | int do_rpmb_read_counter(int nargs, char **argv) |
| 1691 | { |
| 1692 | int ret, dev_fd; |
| 1693 | unsigned int cnt; |
| 1694 | |
| 1695 | CHECK(nargs != 2, "Usage: mmc rpmb read-counter </path/to/mmcblkXrpmb>\n", |
| 1696 | exit(1)); |
| 1697 | |
| 1698 | dev_fd = open(argv[1], O_RDWR); |
| 1699 | if (dev_fd < 0) { |
| 1700 | perror("device open"); |
| 1701 | exit(1); |
| 1702 | } |
| 1703 | |
| 1704 | ret = rpmb_read_counter(dev_fd, &cnt); |
| 1705 | |
| 1706 | /* Check RPMB response */ |
| 1707 | if (ret != 0) { |
| 1708 | printf("RPMB operation failed, retcode 0x%04x\n", ret); |
| 1709 | exit(1); |
| 1710 | } |
| 1711 | |
| 1712 | close(dev_fd); |
| 1713 | |
| 1714 | printf("Counter value: 0x%08x\n", cnt); |
| 1715 | |
| 1716 | return ret; |
| 1717 | } |
| 1718 | |
| 1719 | int do_rpmb_read_block(int nargs, char **argv) |
| 1720 | { |
| 1721 | int i, ret, dev_fd, data_fd, key_fd = -1; |
| 1722 | uint16_t addr, blocks_cnt; |
| 1723 | unsigned char key[32]; |
| 1724 | struct rpmb_frame frame_in = { |
| 1725 | .req_resp = htobe16(MMC_RPMB_READ), |
| 1726 | }, *frame_out_p; |
| 1727 | |
| 1728 | CHECK(nargs != 5 && nargs != 6, "Usage: mmc rpmb read-block </path/to/mmcblkXrpmb> <address> <blocks count> </path/to/output_file> [/path/to/key]\n", |
| 1729 | exit(1)); |
| 1730 | |
| 1731 | dev_fd = open(argv[1], O_RDWR); |
| 1732 | if (dev_fd < 0) { |
| 1733 | perror("device open"); |
| 1734 | exit(1); |
| 1735 | } |
| 1736 | |
| 1737 | /* Get block address */ |
| 1738 | errno = 0; |
| 1739 | addr = strtol(argv[2], NULL, 0); |
| 1740 | if (errno) { |
| 1741 | perror("incorrect address"); |
| 1742 | exit(1); |
| 1743 | } |
| 1744 | frame_in.addr = htobe16(addr); |
| 1745 | |
| 1746 | /* Get blocks count */ |
| 1747 | errno = 0; |
| 1748 | blocks_cnt = strtol(argv[3], NULL, 0); |
| 1749 | if (errno) { |
| 1750 | perror("incorrect blocks count"); |
| 1751 | exit(1); |
| 1752 | } |
| 1753 | |
| 1754 | if (!blocks_cnt) { |
| 1755 | printf("please, specify valid blocks count number\n"); |
| 1756 | exit(1); |
| 1757 | } |
| 1758 | |
| 1759 | frame_out_p = calloc(sizeof(*frame_out_p), blocks_cnt); |
| 1760 | if (!frame_out_p) { |
| 1761 | printf("can't allocate memory for RPMB outer frames\n"); |
| 1762 | exit(1); |
| 1763 | } |
| 1764 | |
| 1765 | /* Write 256b data */ |
| 1766 | if (0 == strcmp(argv[4], "-")) |
| 1767 | data_fd = STDOUT_FILENO; |
| 1768 | else { |
| 1769 | data_fd = open(argv[4], O_WRONLY | O_CREAT | O_APPEND, |
| 1770 | S_IRUSR | S_IWUSR); |
| 1771 | if (data_fd < 0) { |
| 1772 | perror("can't open output file"); |
| 1773 | exit(1); |
| 1774 | } |
| 1775 | } |
| 1776 | |
| 1777 | /* Key is specified */ |
| 1778 | if (nargs == 6) { |
| 1779 | if (0 == strcmp(argv[5], "-")) |
| 1780 | key_fd = STDIN_FILENO; |
| 1781 | else { |
| 1782 | key_fd = open(argv[5], O_RDONLY); |
| 1783 | if (key_fd < 0) { |
| 1784 | perror("can't open input key file"); |
| 1785 | exit(1); |
| 1786 | } |
| 1787 | } |
| 1788 | |
| 1789 | ret = DO_IO(read, key_fd, key, sizeof(key)); |
| 1790 | if (ret < 0) { |
| 1791 | perror("read the key data"); |
| 1792 | exit(1); |
| 1793 | } else if (ret != sizeof(key)) { |
| 1794 | printf("Data must be %lu bytes length, but we read only %d, exit\n", |
| 1795 | (unsigned long)sizeof(key), |
| 1796 | ret); |
| 1797 | exit(1); |
| 1798 | } |
| 1799 | } |
| 1800 | |
| 1801 | /* Execute RPMB op */ |
| 1802 | ret = do_rpmb_op(dev_fd, &frame_in, frame_out_p, blocks_cnt); |
| 1803 | if (ret != 0) { |
| 1804 | perror("RPMB ioctl failed"); |
| 1805 | exit(1); |
| 1806 | } |
| 1807 | |
| 1808 | /* Check RPMB response */ |
| 1809 | if (frame_out_p[blocks_cnt - 1].result != 0) { |
| 1810 | printf("RPMB operation failed, retcode 0x%04x\n", |
| 1811 | be16toh(frame_out_p[blocks_cnt - 1].result)); |
| 1812 | exit(1); |
| 1813 | } |
| 1814 | |
| 1815 | /* Do we have to verify data against key? */ |
| 1816 | if (nargs == 6) { |
| 1817 | unsigned char mac[32]; |
| 1818 | hmac_sha256_ctx ctx; |
| 1819 | struct rpmb_frame *frame_out = NULL; |
| 1820 | |
| 1821 | hmac_sha256_init(&ctx, key, sizeof(key)); |
| 1822 | for (i = 0; i < blocks_cnt; i++) { |
| 1823 | frame_out = &frame_out_p[i]; |
| 1824 | hmac_sha256_update(&ctx, frame_out->data, |
| 1825 | sizeof(*frame_out) - |
| 1826 | offsetof(struct rpmb_frame, data)); |
| 1827 | } |
| 1828 | |
| 1829 | hmac_sha256_final(&ctx, mac, sizeof(mac)); |
| 1830 | |
| 1831 | /* Impossible */ |
| 1832 | assert(frame_out); |
| 1833 | |
| 1834 | /* Compare calculated MAC and MAC from last frame */ |
| 1835 | if (memcmp(mac, frame_out->key_mac, sizeof(mac))) { |
| 1836 | printf("RPMB MAC missmatch\n"); |
| 1837 | exit(1); |
| 1838 | } |
| 1839 | } |
| 1840 | |
| 1841 | /* Write data */ |
| 1842 | for (i = 0; i < blocks_cnt; i++) { |
| 1843 | struct rpmb_frame *frame_out = &frame_out_p[i]; |
| 1844 | ret = DO_IO(write, data_fd, frame_out->data, sizeof(frame_out->data)); |
| 1845 | if (ret < 0) { |
| 1846 | perror("write the data"); |
| 1847 | exit(1); |
| 1848 | } else if (ret != sizeof(frame_out->data)) { |
| 1849 | printf("Data must be %lu bytes length, but we wrote only %d, exit\n", |
| 1850 | (unsigned long)sizeof(frame_out->data), |
| 1851 | ret); |
| 1852 | exit(1); |
| 1853 | } |
| 1854 | } |
| 1855 | |
| 1856 | free(frame_out_p); |
| 1857 | close(dev_fd); |
| 1858 | if (data_fd != STDOUT_FILENO) |
| 1859 | close(data_fd); |
| 1860 | if (key_fd != -1 && key_fd != STDIN_FILENO) |
| 1861 | close(key_fd); |
| 1862 | |
| 1863 | return ret; |
| 1864 | } |
| 1865 | |
| 1866 | int do_rpmb_write_block(int nargs, char **argv) |
| 1867 | { |
| 1868 | int ret, dev_fd, key_fd, data_fd; |
| 1869 | unsigned char key[32]; |
| 1870 | uint16_t addr; |
| 1871 | unsigned int cnt; |
| 1872 | struct rpmb_frame frame_in = { |
| 1873 | .req_resp = htobe16(MMC_RPMB_WRITE), |
| 1874 | .block_count = htobe16(1) |
| 1875 | }, frame_out; |
| 1876 | |
| 1877 | CHECK(nargs != 5, "Usage: mmc rpmb write-block </path/to/mmcblkXrpmb> <address> </path/to/input_file> </path/to/key>\n", |
| 1878 | exit(1)); |
| 1879 | |
| 1880 | dev_fd = open(argv[1], O_RDWR); |
| 1881 | if (dev_fd < 0) { |
| 1882 | perror("device open"); |
| 1883 | exit(1); |
| 1884 | } |
| 1885 | |
| 1886 | ret = rpmb_read_counter(dev_fd, &cnt); |
| 1887 | /* Check RPMB response */ |
| 1888 | if (ret != 0) { |
| 1889 | printf("RPMB read counter operation failed, retcode 0x%04x\n", ret); |
| 1890 | exit(1); |
| 1891 | } |
| 1892 | frame_in.write_counter = htobe32(cnt); |
| 1893 | |
| 1894 | /* Get block address */ |
| 1895 | errno = 0; |
| 1896 | addr = strtol(argv[2], NULL, 0); |
| 1897 | if (errno) { |
| 1898 | perror("incorrect address"); |
| 1899 | exit(1); |
| 1900 | } |
| 1901 | frame_in.addr = htobe16(addr); |
| 1902 | |
| 1903 | /* Read 256b data */ |
| 1904 | if (0 == strcmp(argv[3], "-")) |
| 1905 | data_fd = STDIN_FILENO; |
| 1906 | else { |
| 1907 | data_fd = open(argv[3], O_RDONLY); |
| 1908 | if (data_fd < 0) { |
| 1909 | perror("can't open input file"); |
| 1910 | exit(1); |
| 1911 | } |
| 1912 | } |
| 1913 | |
| 1914 | ret = DO_IO(read, data_fd, frame_in.data, sizeof(frame_in.data)); |
| 1915 | if (ret < 0) { |
| 1916 | perror("read the data"); |
| 1917 | exit(1); |
| 1918 | } else if (ret != sizeof(frame_in.data)) { |
| 1919 | printf("Data must be %lu bytes length, but we read only %d, exit\n", |
| 1920 | (unsigned long)sizeof(frame_in.data), |
| 1921 | ret); |
| 1922 | exit(1); |
| 1923 | } |
| 1924 | |
| 1925 | /* Read the auth key */ |
| 1926 | if (0 == strcmp(argv[4], "-")) |
| 1927 | key_fd = STDIN_FILENO; |
| 1928 | else { |
| 1929 | key_fd = open(argv[4], O_RDONLY); |
| 1930 | if (key_fd < 0) { |
| 1931 | perror("can't open key file"); |
| 1932 | exit(1); |
| 1933 | } |
| 1934 | } |
| 1935 | |
| 1936 | ret = DO_IO(read, key_fd, key, sizeof(key)); |
| 1937 | if (ret < 0) { |
| 1938 | perror("read the key"); |
| 1939 | exit(1); |
| 1940 | } else if (ret != sizeof(key)) { |
| 1941 | printf("Auth key must be %lu bytes length, but we read only %d, exit\n", |
| 1942 | (unsigned long)sizeof(key), |
| 1943 | ret); |
| 1944 | exit(1); |
| 1945 | } |
| 1946 | |
| 1947 | /* Calculate HMAC SHA256 */ |
| 1948 | hmac_sha256( |
| 1949 | key, sizeof(key), |
| 1950 | frame_in.data, sizeof(frame_in) - offsetof(struct rpmb_frame, data), |
| 1951 | frame_in.key_mac, sizeof(frame_in.key_mac)); |
| 1952 | |
| 1953 | /* Execute RPMB op */ |
| 1954 | ret = do_rpmb_op(dev_fd, &frame_in, &frame_out, 1); |
| 1955 | if (ret != 0) { |
| 1956 | perror("RPMB ioctl failed"); |
| 1957 | exit(1); |
| 1958 | } |
| 1959 | |
| 1960 | /* Check RPMB response */ |
| 1961 | if (frame_out.result != 0) { |
| 1962 | printf("RPMB operation failed, retcode 0x%04x\n", |
| 1963 | be16toh(frame_out.result)); |
| 1964 | exit(1); |
| 1965 | } |
| 1966 | |
| 1967 | close(dev_fd); |
| 1968 | if (data_fd != STDIN_FILENO) |
| 1969 | close(data_fd); |
| 1970 | if (key_fd != STDIN_FILENO) |
| 1971 | close(key_fd); |
| 1972 | |
| 1973 | return ret; |
| 1974 | } |
Al Cooper | d0b4644 | 2015-04-29 18:12:35 -0400 | [diff] [blame] | 1975 | |
| 1976 | int do_cache_ctrl(int value, int nargs, char **argv) |
| 1977 | { |
| 1978 | __u8 ext_csd[512]; |
| 1979 | int fd, ret; |
| 1980 | char *device; |
| 1981 | |
| 1982 | CHECK(nargs != 2, "Usage: mmc cache enable </path/to/mmcblkX>\n", |
| 1983 | exit(1)); |
| 1984 | |
| 1985 | device = argv[1]; |
| 1986 | |
| 1987 | fd = open(device, O_RDWR); |
| 1988 | if (fd < 0) { |
| 1989 | perror("open"); |
| 1990 | exit(1); |
| 1991 | } |
| 1992 | |
| 1993 | ret = read_extcsd(fd, ext_csd); |
| 1994 | if (ret) { |
| 1995 | fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| 1996 | exit(1); |
| 1997 | } |
| 1998 | |
| 1999 | if (ext_csd[EXT_CSD_REV] < EXT_CSD_REV_V4_5) { |
| 2000 | fprintf(stderr, |
| 2001 | "The CACHE option is only availabe on devices >= " |
| 2002 | "MMC 4.5 %s\n", device); |
| 2003 | exit(1); |
| 2004 | } |
| 2005 | |
| 2006 | /* If the cache size is zero, this device does not have a cache */ |
| 2007 | if (!(ext_csd[EXT_CSD_CACHE_SIZE_3] || |
| 2008 | ext_csd[EXT_CSD_CACHE_SIZE_2] || |
| 2009 | ext_csd[EXT_CSD_CACHE_SIZE_1] || |
| 2010 | ext_csd[EXT_CSD_CACHE_SIZE_0])) { |
| 2011 | fprintf(stderr, |
| 2012 | "The CACHE option is not available on %s\n", |
| 2013 | device); |
| 2014 | exit(1); |
| 2015 | } |
| 2016 | ret = write_extcsd_value(fd, EXT_CSD_CACHE_CTRL, value); |
| 2017 | if (ret) { |
| 2018 | fprintf(stderr, |
| 2019 | "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 2020 | value, EXT_CSD_CACHE_CTRL, device); |
| 2021 | exit(1); |
| 2022 | } |
| 2023 | |
| 2024 | return ret; |
| 2025 | } |
| 2026 | |
| 2027 | int do_cache_en(int nargs, char **argv) |
| 2028 | { |
| 2029 | return do_cache_ctrl(1, nargs, argv); |
| 2030 | } |
| 2031 | |
| 2032 | int do_cache_dis(int nargs, char **argv) |
| 2033 | { |
| 2034 | return do_cache_ctrl(0, nargs, argv); |
| 2035 | } |