| /* |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public |
| * License v2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public |
| * License along with this program; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 021110-1307, USA. |
| * |
| * Modified to add field firmware update support, |
| * those modifications are Copyright (c) 2016 SanDisk Corp. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/ioctl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <stdint.h> |
| #include <assert.h> |
| #include <linux/fs.h> /* for BLKGETSIZE */ |
| |
| #include "mmc.h" |
| #include "mmc_cmds.h" |
| #include "3rdparty/hmac_sha/hmac_sha2.h" |
| |
| #ifndef MMC_IOC_MULTI_CMD |
| #error "mmc-utils needs MMC_IOC_MULTI_CMD support (added in kernel v4.4)" |
| #endif |
| |
| #ifndef offsetof |
| #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) |
| #endif |
| |
| #define WP_BLKS_PER_QUERY 32 |
| |
| #define USER_WP_PERM_PSWD_DIS 0x80 |
| #define USER_WP_CD_PERM_WP_DIS 0x40 |
| #define USER_WP_US_PERM_WP_DIS 0x10 |
| #define USER_WP_US_PWR_WP_DIS 0x08 |
| #define USER_WP_US_PERM_WP_EN 0x04 |
| #define USER_WP_US_PWR_WP_EN 0x01 |
| #define USER_WP_CLEAR (USER_WP_US_PERM_WP_DIS | USER_WP_US_PWR_WP_DIS \ |
| | USER_WP_US_PERM_WP_EN | USER_WP_US_PWR_WP_EN) |
| |
| #define WPTYPE_NONE 0 |
| #define WPTYPE_TEMP 1 |
| #define WPTYPE_PWRON 2 |
| #define WPTYPE_PERM 3 |
| |
| static inline __u32 per_byte_htole32(__u8 *arr) |
| { |
| return arr[0] | arr[1] << 8 | arr[2] << 16 | arr[3] << 24; |
| } |
| |
| int read_extcsd(int fd, __u8 *ext_csd) |
| { |
| int ret = 0; |
| struct mmc_ioc_cmd idata; |
| memset(&idata, 0, sizeof(idata)); |
| memset(ext_csd, 0, sizeof(__u8) * 512); |
| idata.write_flag = 0; |
| idata.opcode = MMC_SEND_EXT_CSD; |
| idata.arg = 0; |
| idata.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; |
| idata.blksz = 512; |
| idata.blocks = 1; |
| mmc_ioc_cmd_set_data(idata, ext_csd); |
| |
| ret = ioctl(fd, MMC_IOC_CMD, &idata); |
| if (ret) |
| perror("ioctl"); |
| |
| return ret; |
| } |
| |
| static void fill_switch_cmd(struct mmc_ioc_cmd *cmd, __u8 index, __u8 value) |
| { |
| cmd->opcode = MMC_SWITCH; |
| cmd->write_flag = 1; |
| cmd->arg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) | (index << 16) | |
| (value << 8) | EXT_CSD_CMD_SET_NORMAL; |
| cmd->flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; |
| } |
| |
| int write_extcsd_value(int fd, __u8 index, __u8 value, unsigned int timeout_ms) |
| { |
| int ret = 0; |
| struct mmc_ioc_cmd idata = {}; |
| |
| fill_switch_cmd(&idata, index, value); |
| |
| /* Kernel will set cmd_timeout_ms if 0 is set */ |
| idata.cmd_timeout_ms = timeout_ms; |
| |
| ret = ioctl(fd, MMC_IOC_CMD, &idata); |
| if (ret) |
| perror("ioctl"); |
| |
| return ret; |
| } |
| |
| int send_status(int fd, __u32 *response) |
| { |
| int ret = 0; |
| struct mmc_ioc_cmd idata; |
| |
| memset(&idata, 0, sizeof(idata)); |
| idata.opcode = MMC_SEND_STATUS; |
| idata.arg = (1 << 16); |
| idata.flags = MMC_RSP_R1 | MMC_CMD_AC; |
| |
| ret = ioctl(fd, MMC_IOC_CMD, &idata); |
| if (ret) |
| perror("ioctl"); |
| |
| *response = idata.response[0]; |
| |
| return ret; |
| } |
| |
| static __u32 get_size_in_blks(int fd) |
| { |
| int res; |
| int size; |
| |
| res = ioctl(fd, BLKGETSIZE, &size); |
| if (res) { |
| fprintf(stderr, "Error getting device size, errno: %d\n", |
| errno); |
| perror(""); |
| return -1; |
| } |
| return size; |
| } |
| |
| static int set_write_protect(int fd, __u32 blk_addr, int on_off) |
| { |
| int ret = 0; |
| struct mmc_ioc_cmd idata; |
| |
| memset(&idata, 0, sizeof(idata)); |
| idata.write_flag = 1; |
| if (on_off) |
| idata.opcode = MMC_SET_WRITE_PROT; |
| else |
| idata.opcode = MMC_CLEAR_WRITE_PROT; |
| idata.arg = blk_addr; |
| idata.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; |
| |
| ret = ioctl(fd, MMC_IOC_CMD, &idata); |
| if (ret) |
| perror("ioctl"); |
| |
| return ret; |
| } |
| |
| static int send_write_protect_type(int fd, __u32 blk_addr, __u64 *group_bits) |
| { |
| int ret = 0; |
| struct mmc_ioc_cmd idata; |
| __u8 buf[8]; |
| __u64 bits = 0; |
| int x; |
| |
| memset(&idata, 0, sizeof(idata)); |
| idata.write_flag = 0; |
| idata.opcode = MMC_SEND_WRITE_PROT_TYPE; |
| idata.blksz = 8, |
| idata.blocks = 1, |
| idata.arg = blk_addr; |
| idata.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; |
| mmc_ioc_cmd_set_data(idata, buf); |
| |
| ret = ioctl(fd, MMC_IOC_CMD, &idata); |
| if (ret) |
| perror("ioctl"); |
| for (x = 0; x < sizeof(buf); x++) |
| bits |= (__u64)(buf[7 - x]) << (x * 8); |
| *group_bits = bits; |
| return ret; |
| } |
| |
| static void print_writeprotect_boot_status(__u8 *ext_csd) |
| { |
| __u8 reg; |
| __u8 ext_csd_rev = ext_csd[EXT_CSD_REV]; |
| |
| /* A43: reserved [174:0] */ |
| if (ext_csd_rev >= 5) { |
| printf("Boot write protection status registers" |
| " [BOOT_WP_STATUS]: 0x%02x\n", ext_csd[174]); |
| |
| reg = ext_csd[EXT_CSD_BOOT_WP]; |
| printf("Boot Area Write protection [BOOT_WP]: 0x%02x\n", reg); |
| printf(" Power ro locking: "); |
| if (reg & EXT_CSD_BOOT_WP_B_PWR_WP_DIS) |
| printf("not possible\n"); |
| else |
| printf("possible\n"); |
| |
| printf(" Permanent ro locking: "); |
| if (reg & EXT_CSD_BOOT_WP_B_PERM_WP_DIS) |
| printf("not possible\n"); |
| else |
| printf("possible\n"); |
| |
| reg = ext_csd[EXT_CSD_BOOT_WP_STATUS]; |
| printf(" partition 0 ro lock status: "); |
| if (reg & EXT_CSD_BOOT_WP_S_AREA_0_PERM) |
| printf("locked permanently\n"); |
| else if (reg & EXT_CSD_BOOT_WP_S_AREA_0_PWR) |
| printf("locked until next power on\n"); |
| else |
| printf("not locked\n"); |
| printf(" partition 1 ro lock status: "); |
| if (reg & EXT_CSD_BOOT_WP_S_AREA_1_PERM) |
| printf("locked permanently\n"); |
| else if (reg & EXT_CSD_BOOT_WP_S_AREA_1_PWR) |
| printf("locked until next power on\n"); |
| else |
| printf("not locked\n"); |
| } |
| } |
| |
| static int get_wp_group_size_in_blks(__u8 *ext_csd, __u32 *size) |
| { |
| __u8 ext_csd_rev = ext_csd[EXT_CSD_REV]; |
| |
| if ((ext_csd_rev < 5) || (ext_csd[EXT_CSD_ERASE_GROUP_DEF] == 0)) |
| return 1; |
| |
| *size = ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * |
| ext_csd[EXT_CSD_HC_WP_GRP_SIZE] * 1024; |
| return 0; |
| } |
| |
| |
| int do_writeprotect_boot_get(int nargs, char **argv) |
| { |
| __u8 ext_csd[512]; |
| int fd, ret; |
| char *device; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc writeprotect boot get </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| print_writeprotect_boot_status(ext_csd); |
| |
| close(fd); |
| return ret; |
| } |
| |
| int do_writeprotect_boot_set(int nargs, char **argv) |
| { |
| __u8 ext_csd[512], value; |
| int fd, ret; |
| char *device; |
| char *end; |
| int argi = 1; |
| int permanent = 0; |
| int partition = -1; |
| |
| #ifdef DANGEROUS_COMMANDS_ENABLED |
| if (!strcmp(argv[argi], "-p")){ |
| permanent = 1; |
| argi++; |
| } |
| #endif |
| |
| if (nargs < 1 + argi || nargs > 2 + argi) { |
| fprintf(stderr, "Usage: mmc writeprotect boot set " |
| #ifdef DANGEROUS_COMMANDS_ENABLED |
| "[-p] " |
| #endif |
| "</path/to/mmcblkX> [0|1]\n"); |
| exit(1); |
| } |
| |
| device = argv[argi++]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| if (nargs == 1 + argi) { |
| partition = strtoul(argv[argi], &end, 0); |
| if (*end != '\0' || !(partition == 0 || partition == 1)) { |
| fprintf(stderr, "Invalid partition number (must be 0 or 1): %s\n", |
| argv[argi]); |
| exit(1); |
| } |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| value = ext_csd[EXT_CSD_BOOT_WP]; |
| /* |
| * If permanent protection is already on for one partition and we're |
| * trying to enable power-reset protection for the other we need to make |
| * sure the selection bit for permanent protection still points to the |
| * former or we'll accidentally permanently protect the latter. |
| */ |
| if ((value & EXT_CSD_BOOT_WP_B_PERM_WP_EN) && !permanent) { |
| if (ext_csd[EXT_CSD_BOOT_WP_STATUS] & |
| EXT_CSD_BOOT_WP_S_AREA_1_PERM) { |
| value |= EXT_CSD_BOOT_WP_B_PERM_WP_SEC_SEL; |
| if (partition != 1) |
| partition = 0; |
| } else { |
| /* PERM_WP_SEC_SEL cleared -> pointing to partition 0 */ |
| if (partition != 0) |
| partition = 1; |
| } |
| } |
| if (partition != -1) { |
| value |= EXT_CSD_BOOT_WP_B_SEC_WP_SEL; |
| if (partition == 1) |
| value |= permanent ? EXT_CSD_BOOT_WP_B_PERM_WP_SEC_SEL |
| : EXT_CSD_BOOT_WP_B_PWR_WP_SEC_SEL; |
| } |
| value |= permanent ? EXT_CSD_BOOT_WP_B_PERM_WP_EN |
| : EXT_CSD_BOOT_WP_B_PWR_WP_EN; |
| |
| ret = write_extcsd_value(fd, EXT_CSD_BOOT_WP, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", |
| value, EXT_CSD_BOOT_WP, device); |
| exit(1); |
| } |
| |
| close(fd); |
| return ret; |
| } |
| |
| static char *prot_desc[] = { |
| "No", |
| "Temporary", |
| "Power-on", |
| "Permanent" |
| }; |
| |
| static void print_wp_status(__u32 wp_sizeblks, __u32 start_group, |
| __u32 end_group, int rptype) |
| { |
| printf("Write Protect Groups %d-%d (Blocks %d-%d), ", |
| start_group, end_group, |
| start_group * wp_sizeblks, ((end_group + 1) * wp_sizeblks) - 1); |
| printf("%s Write Protection\n", prot_desc[rptype]); |
| } |
| |
| |
| int do_writeprotect_user_get(int nargs, char **argv) |
| { |
| __u8 ext_csd[512]; |
| int fd, ret; |
| char *device; |
| int x; |
| int y = 0; |
| __u32 wp_sizeblks; |
| __u32 dev_sizeblks; |
| __u32 cnt; |
| __u64 bits; |
| __u32 wpblk; |
| __u32 last_wpblk = 0; |
| __u32 prot; |
| __u32 last_prot = -1; |
| int remain; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc writeprotect user get </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| ret = get_wp_group_size_in_blks(ext_csd, &wp_sizeblks); |
| if (ret) |
| exit(1); |
| printf("Write Protect Group size in blocks/bytes: %d/%d\n", |
| wp_sizeblks, wp_sizeblks * 512); |
| dev_sizeblks = get_size_in_blks(fd); |
| cnt = dev_sizeblks / wp_sizeblks; |
| for (x = 0; x < cnt; x += WP_BLKS_PER_QUERY) { |
| ret = send_write_protect_type(fd, x * wp_sizeblks, &bits); |
| if (ret) |
| break; |
| remain = cnt - x; |
| if (remain > WP_BLKS_PER_QUERY) |
| remain = WP_BLKS_PER_QUERY; |
| for (y = 0; y < remain; y++) { |
| prot = (bits >> (y * 2)) & 0x3; |
| if (prot != last_prot) { |
| /* not first time */ |
| if (last_prot != -1) { |
| wpblk = x + y; |
| print_wp_status(wp_sizeblks, |
| last_wpblk, |
| wpblk - 1, |
| last_prot); |
| last_wpblk = wpblk; |
| } |
| last_prot = prot; |
| } |
| } |
| } |
| if (last_wpblk != (x + y - 1)) |
| print_wp_status(wp_sizeblks, last_wpblk, cnt - 1, last_prot); |
| |
| close(fd); |
| return ret; |
| } |
| |
| int do_writeprotect_user_set(int nargs, char **argv) |
| { |
| __u8 ext_csd[512]; |
| int fd, ret; |
| char *device; |
| int blk_start; |
| int blk_cnt; |
| __u32 wp_blks; |
| __u8 user_wp; |
| int x; |
| int wptype; |
| |
| if (nargs != 5) |
| goto usage; |
| device = argv[4]; |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| if (!strcmp(argv[1], "none")) { |
| wptype = WPTYPE_NONE; |
| } else if (!strcmp(argv[1], "temp")) { |
| wptype = WPTYPE_TEMP; |
| } else if (!strcmp(argv[1], "pwron")) { |
| wptype = WPTYPE_PWRON; |
| #ifdef DANGEROUS_COMMANDS_ENABLED |
| } else if (!strcmp(argv[1], "perm")) { |
| wptype = WPTYPE_PERM; |
| #endif /* DANGEROUS_COMMANDS_ENABLED */ |
| } else { |
| fprintf(stderr, "Error, invalid \"type\"\n"); |
| goto usage; |
| } |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| ret = get_wp_group_size_in_blks(ext_csd, &wp_blks); |
| if (ret) { |
| fprintf(stderr, "Operation not supported for this device\n"); |
| exit(1); |
| } |
| blk_start = strtol(argv[2], NULL, 0); |
| blk_cnt = strtol(argv[3], NULL, 0); |
| if ((blk_start % wp_blks) || (blk_cnt % wp_blks)) { |
| fprintf(stderr, "<start block> and <blocks> must be a "); |
| fprintf(stderr, "multiple of the Write Protect Group (%d)\n", |
| wp_blks); |
| exit(1); |
| } |
| if (wptype != WPTYPE_NONE) { |
| user_wp = ext_csd[EXT_CSD_USER_WP]; |
| user_wp &= ~USER_WP_CLEAR; |
| switch (wptype) { |
| case WPTYPE_TEMP: |
| break; |
| case WPTYPE_PWRON: |
| user_wp |= USER_WP_US_PWR_WP_EN; |
| break; |
| case WPTYPE_PERM: |
| user_wp |= USER_WP_US_PERM_WP_EN; |
| break; |
| } |
| if (user_wp != ext_csd[EXT_CSD_USER_WP]) { |
| ret = write_extcsd_value(fd, EXT_CSD_USER_WP, user_wp, 0); |
| if (ret) { |
| fprintf(stderr, "Error setting EXT_CSD\n"); |
| exit(1); |
| } |
| } |
| } |
| for (x = 0; x < blk_cnt; x += wp_blks) { |
| ret = set_write_protect(fd, blk_start + x, |
| wptype != WPTYPE_NONE); |
| if (ret) { |
| fprintf(stderr, |
| "Could not set write protect for %s\n", device); |
| exit(1); |
| } |
| } |
| if (wptype != WPTYPE_NONE) { |
| ret = write_extcsd_value(fd, EXT_CSD_USER_WP, |
| ext_csd[EXT_CSD_USER_WP], 0); |
| if (ret) { |
| fprintf(stderr, "Error restoring EXT_CSD\n"); |
| exit(1); |
| } |
| } |
| return ret; |
| |
| usage: |
| fprintf(stderr, |
| "Usage: mmc writeprotect user set <type><start block><blocks><device>\n"); |
| exit(1); |
| } |
| |
| int do_disable_512B_emulation(int nargs, char **argv) |
| { |
| __u8 ext_csd[512], native_sector_size, data_sector_size, wr_rel_param; |
| int fd, ret; |
| char *device; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc disable 512B emulation </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| wr_rel_param = ext_csd[EXT_CSD_WR_REL_PARAM]; |
| native_sector_size = ext_csd[EXT_CSD_NATIVE_SECTOR_SIZE]; |
| data_sector_size = ext_csd[EXT_CSD_DATA_SECTOR_SIZE]; |
| |
| if (native_sector_size && !data_sector_size && |
| (wr_rel_param & EN_REL_WR)) { |
| ret = write_extcsd_value(fd, EXT_CSD_USE_NATIVE_SECTOR, 1, 0); |
| |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 1, EXT_CSD_NATIVE_SECTOR_SIZE, device); |
| exit(1); |
| } |
| printf("MMC disable 512B emulation successful. Now reset the device to switch to 4KB native sector mode.\n"); |
| } else if (native_sector_size && data_sector_size) { |
| printf("MMC 512B emulation mode is already disabled; doing nothing.\n"); |
| } else { |
| printf("MMC does not support disabling 512B emulation mode.\n"); |
| } |
| |
| close(fd); |
| return ret; |
| } |
| |
| int do_write_boot_en(int nargs, char **argv) |
| { |
| __u8 ext_csd[512]; |
| __u8 value = 0; |
| int fd, ret; |
| char *device; |
| int boot_area, send_ack; |
| |
| if (nargs != 4) { |
| fprintf(stderr, "Usage: mmc bootpart enable <partition_number> <send_ack> </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| /* |
| * If <send_ack> is 1, the device will send acknowledgment |
| * pattern "010" to the host when boot operation begins. |
| * If <send_ack> is 0, it won't. |
| */ |
| boot_area = strtol(argv[1], NULL, 10); |
| send_ack = strtol(argv[2], NULL, 10); |
| device = argv[3]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| value = ext_csd[EXT_CSD_PART_CONFIG]; |
| |
| switch (boot_area) { |
| case EXT_CSD_PART_CONFIG_ACC_NONE: |
| value &= ~(7 << 3); |
| break; |
| case EXT_CSD_PART_CONFIG_ACC_BOOT0: |
| value |= (1 << 3); |
| value &= ~(3 << 4); |
| break; |
| case EXT_CSD_PART_CONFIG_ACC_BOOT1: |
| value |= (1 << 4); |
| value &= ~(1 << 3); |
| value &= ~(1 << 5); |
| break; |
| case EXT_CSD_PART_CONFIG_ACC_USER_AREA: |
| value |= (boot_area << 3); |
| break; |
| default: |
| fprintf(stderr, "Cannot enable the boot area\n"); |
| exit(1); |
| } |
| if (send_ack) |
| value |= EXT_CSD_PART_CONFIG_ACC_ACK; |
| else |
| value &= ~EXT_CSD_PART_CONFIG_ACC_ACK; |
| |
| ret = write_extcsd_value(fd, EXT_CSD_PART_CONFIG, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", |
| value, EXT_CSD_PART_CONFIG, device); |
| exit(1); |
| } |
| close(fd); |
| return ret; |
| } |
| |
| int do_boot_bus_conditions_set(int nargs, char **argv) |
| { |
| __u8 ext_csd[512]; |
| __u8 value = 0; |
| int fd, ret; |
| char *device; |
| |
| if (nargs != 5) { |
| fprintf(stderr, "Usage: mmc: bootbus set <boot_mode> <reset_boot_bus_conditions> <boot_bus_width> <device>\n"); |
| exit(1); |
| } |
| |
| if (strcmp(argv[1], "single_backward") == 0) |
| value |= 0; |
| else if (strcmp(argv[1], "single_hs") == 0) |
| value |= 0x8; |
| else if (strcmp(argv[1], "dual") == 0) |
| value |= 0x10; |
| else { |
| fprintf(stderr, "illegal <boot_mode> specified\n"); |
| exit(1); |
| } |
| |
| if (strcmp(argv[2], "x1") == 0) |
| value |= 0; |
| else if (strcmp(argv[2], "retain") == 0) |
| value |= 0x4; |
| else { |
| fprintf(stderr, |
| "illegal <reset_boot_bus_conditions> specified\n"); |
| exit(1); |
| } |
| |
| if (strcmp(argv[3], "x1") == 0) |
| value |= 0; |
| else if (strcmp(argv[3], "x4") == 0) |
| value |= 0x1; |
| else if (strcmp(argv[3], "x8") == 0) |
| value |= 0x2; |
| else { |
| fprintf(stderr, "illegal <boot_bus_width> specified\n"); |
| exit(1); |
| } |
| |
| device = argv[4]; |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| printf("Changing ext_csd[BOOT_BUS_CONDITIONS] from 0x%02x to 0x%02x\n", |
| ext_csd[EXT_CSD_BOOT_BUS_CONDITIONS], value); |
| |
| ret = write_extcsd_value(fd, EXT_CSD_BOOT_BUS_CONDITIONS, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", |
| value, EXT_CSD_BOOT_BUS_CONDITIONS, device); |
| exit(1); |
| } |
| close(fd); |
| return ret; |
| } |
| |
| int do_hwreset(int value, int nargs, char **argv) |
| { |
| __u8 ext_csd[512]; |
| int fd, ret; |
| char *device; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc hwreset enable </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| if ((ext_csd[EXT_CSD_RST_N_FUNCTION] & EXT_CSD_RST_N_EN_MASK) == |
| EXT_CSD_HW_RESET_EN) { |
| fprintf(stderr, |
| "H/W Reset is already permanently enabled on %s\n", |
| device); |
| exit(1); |
| } |
| if ((ext_csd[EXT_CSD_RST_N_FUNCTION] & EXT_CSD_RST_N_EN_MASK) == |
| EXT_CSD_HW_RESET_DIS) { |
| fprintf(stderr, |
| "H/W Reset is already permanently disabled on %s\n", |
| device); |
| exit(1); |
| } |
| |
| ret = write_extcsd_value(fd, EXT_CSD_RST_N_FUNCTION, value, 0); |
| if (ret) { |
| fprintf(stderr, |
| "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| value, EXT_CSD_RST_N_FUNCTION, device); |
| exit(1); |
| } |
| |
| close(fd); |
| return ret; |
| } |
| |
| int do_hwreset_en(int nargs, char **argv) |
| { |
| return do_hwreset(EXT_CSD_HW_RESET_EN, nargs, argv); |
| } |
| |
| int do_hwreset_dis(int nargs, char **argv) |
| { |
| return do_hwreset(EXT_CSD_HW_RESET_DIS, nargs, argv); |
| } |
| |
| int do_write_bkops_en(int nargs, char **argv) |
| { |
| __u8 ext_csd[512], value = 0; |
| int fd, ret; |
| char *device; |
| char *en_type; |
| |
| if (nargs != 3) { |
| fprintf(stderr, "Usage: mmc bkops_en <auto|manual> </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| en_type = argv[1]; |
| device = argv[2]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| if (strcmp(en_type, "auto") == 0) { |
| if (ext_csd[EXT_CSD_REV] < EXT_CSD_REV_V5_0) { |
| fprintf(stderr, "%s doesn't support AUTO_EN in the BKOPS_EN register\n", device); |
| exit(1); |
| } |
| ret = write_extcsd_value(fd, EXT_CSD_BKOPS_EN, BKOPS_AUTO_ENABLE, 0); |
| } else if (strcmp(en_type, "manual") == 0) { |
| ret = write_extcsd_value(fd, EXT_CSD_BKOPS_EN, BKOPS_MAN_ENABLE, 0); |
| } else { |
| fprintf(stderr, "%s invalid mode for BKOPS_EN requested: %s. Valid options: auto or manual\n", en_type, device); |
| exit(1); |
| } |
| |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| value, EXT_CSD_BKOPS_EN, device); |
| exit(1); |
| } |
| |
| close(fd); |
| return ret; |
| } |
| |
| int do_status_get(int nargs, char **argv) |
| { |
| __u32 response; |
| int fd, ret; |
| char *device; |
| const char *str; |
| __u8 state; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc status get </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = send_status(fd, &response); |
| if (ret) { |
| fprintf(stderr, "Could not read response to SEND_STATUS from %s\n", device); |
| exit(1); |
| } |
| |
| printf("SEND_STATUS response: 0x%08x\n", response); |
| |
| if (response & R1_OUT_OF_RANGE) |
| printf("ERROR: ADDRESS_OUT_OF_RANGE\n"); |
| if (response & R1_ADDRESS_ERROR) |
| printf("ERROR: ADDRESS_MISALIGN\n"); |
| if (response & R1_BLOCK_LEN_ERROR) |
| printf("ERROR: BLOCK_LEN_ERROR\n"); |
| if (response & R1_ERASE_SEQ_ERROR) |
| printf("ERROR: ERASE_SEQ_ERROR\n"); |
| if (response & R1_ERASE_PARAM) |
| printf("ERROR: ERASE_PARAM_ERROR\n"); |
| if (response & R1_WP_VIOLATION) |
| printf("ERROR: WP_VOILATION\n"); |
| if (response & R1_CARD_IS_LOCKED) |
| printf("STATUS: DEVICE_IS_LOCKED\n"); |
| if (response & R1_LOCK_UNLOCK_FAILED) |
| printf("ERROR: LOCK_UNLOCK_IS_FAILED\n"); |
| if (response & R1_COM_CRC_ERROR) |
| printf("ERROR: COM_CRC_ERROR\n"); |
| if (response & R1_ILLEGAL_COMMAND) |
| printf("ERROR: ILLEGAL_COMMAND\n"); |
| if (response & R1_CARD_ECC_FAILED) |
| printf("ERROR: DEVICE_ECC_FAILED\n"); |
| if (response & R1_CC_ERROR) |
| printf("ERROR: CC_ERROR\n"); |
| if (response & R1_ERROR) |
| printf("ERROR: ERROR\n"); |
| if (response & R1_CID_CSD_OVERWRITE) |
| printf("ERROR: CID/CSD OVERWRITE\n"); |
| if (response & R1_WP_ERASE_SKIP) |
| printf("ERROR: WP_ERASE_SKIP\n"); |
| if (response & R1_ERASE_RESET) |
| printf("ERROR: ERASE_RESET\n"); |
| |
| state = (response >> 9) & 0xF; |
| switch (state) { |
| case 0: |
| str = "IDLE"; |
| break; |
| case 1: |
| str = "READY"; |
| break; |
| case 2: |
| str = "IDENT"; |
| break; |
| case 3: |
| str = "STDBY"; |
| break; |
| case 4: |
| str = "TRANS"; |
| break; |
| case 5: |
| str = "DATA"; |
| break; |
| case 6: |
| str = "RCV"; |
| break; |
| case 7: |
| str = "PRG"; |
| break; |
| case 8: |
| str = "DIS"; |
| break; |
| case 9: |
| str = "BTST"; |
| break; |
| case 10: |
| str = "SLP"; |
| break; |
| default: |
| printf("Attention : Device state is INVALID: Kindly check the Response\n"); |
| goto out_free; |
| } |
| |
| printf("DEVICE STATE: %s\n", str); |
| if (response & R1_READY_FOR_DATA) |
| printf("STATUS: READY_FOR_DATA\n"); |
| if (response & R1_SWITCH_ERROR) |
| printf("ERROR: SWITCH_ERROR\n"); |
| if (response & R1_EXCEPTION_EVENT) |
| printf("STATUS: EXCEPTION_EVENT\n"); /* Check EXCEPTION_EVENTS_STATUS fields for further actions */ |
| if (response & R1_APP_CMD) |
| printf("STATUS: APP_CMD\n"); |
| out_free: |
| close(fd); |
| return ret; |
| } |
| |
| unsigned int get_sector_count(__u8 *ext_csd) |
| { |
| return (ext_csd[EXT_CSD_SEC_COUNT_3] << 24) | |
| (ext_csd[EXT_CSD_SEC_COUNT_2] << 16) | |
| (ext_csd[EXT_CSD_SEC_COUNT_1] << 8) | |
| ext_csd[EXT_CSD_SEC_COUNT_0]; |
| } |
| |
| int is_blockaddresed(__u8 *ext_csd) |
| { |
| unsigned int sectors = get_sector_count(ext_csd); |
| |
| /* over 2GiB devices are block-addressed */ |
| return (sectors > (2u * 1024 * 1024 * 1024) / 512); |
| } |
| |
| unsigned int get_hc_wp_grp_size(__u8 *ext_csd) |
| { |
| return ext_csd[221]; |
| } |
| |
| unsigned int get_hc_erase_grp_size(__u8 *ext_csd) |
| { |
| return ext_csd[224]; |
| } |
| |
| int set_partitioning_setting_completed(int dry_run, const char * const device, |
| int fd) |
| { |
| int ret; |
| |
| if (dry_run == 1) { |
| fprintf(stderr, "NOT setting PARTITION_SETTING_COMPLETED\n"); |
| fprintf(stderr, "These changes will not take effect neither " |
| "now nor after a power cycle\n"); |
| return 1; |
| } else if (dry_run == 2) { |
| printf("-c given, expecting more partition settings before " |
| "writing PARTITION_SETTING_COMPLETED\n"); |
| return 0; |
| } |
| |
| fprintf(stderr, "setting OTP PARTITION_SETTING_COMPLETED!\n"); |
| ret = write_extcsd_value(fd, EXT_CSD_PARTITION_SETTING_COMPLETED, 0x1, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x1 to " |
| "EXT_CSD[%d] in %s\n", |
| EXT_CSD_PARTITION_SETTING_COMPLETED, device); |
| return 1; |
| } |
| |
| __u32 response; |
| ret = send_status(fd, &response); |
| if (ret) { |
| fprintf(stderr, "Could not get response to SEND_STATUS " |
| "from %s\n", device); |
| return 1; |
| } |
| |
| if (response & R1_SWITCH_ERROR) { |
| fprintf(stderr, "Setting OTP PARTITION_SETTING_COMPLETED " |
| "failed on %s\n", device); |
| return 1; |
| } |
| |
| fprintf(stderr, "Setting OTP PARTITION_SETTING_COMPLETED on " |
| "%s SUCCESS\n", device); |
| fprintf(stderr, "Device power cycle needed for settings to " |
| "take effect.\n" |
| "Confirm that PARTITION_SETTING_COMPLETED bit is set " |
| "using 'extcsd read' after power cycle\n"); |
| |
| return 0; |
| } |
| |
| int check_enhanced_area_total_limit(const char * const device, int fd) |
| { |
| __u8 ext_csd[512]; |
| __u32 regl; |
| unsigned long max_enh_area_sz, user_area_sz, enh_area_sz = 0; |
| unsigned long gp4_part_sz, gp3_part_sz, gp2_part_sz, gp1_part_sz; |
| unsigned long total_sz, total_gp_user_sz; |
| unsigned int wp_sz, erase_sz; |
| int ret; |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| wp_sz = get_hc_wp_grp_size(ext_csd); |
| erase_sz = get_hc_erase_grp_size(ext_csd); |
| |
| regl = (ext_csd[EXT_CSD_GP_SIZE_MULT_4_2] << 16) | |
| (ext_csd[EXT_CSD_GP_SIZE_MULT_4_1] << 8) | |
| ext_csd[EXT_CSD_GP_SIZE_MULT_4_0]; |
| gp4_part_sz = 512l * regl * erase_sz * wp_sz; |
| if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_4) { |
| enh_area_sz += gp4_part_sz; |
| printf("Enhanced GP4 Partition Size [GP_SIZE_MULT_4]: 0x%06x\n", regl); |
| printf(" i.e. %lu KiB\n", gp4_part_sz); |
| } |
| |
| regl = (ext_csd[EXT_CSD_GP_SIZE_MULT_3_2] << 16) | |
| (ext_csd[EXT_CSD_GP_SIZE_MULT_3_1] << 8) | |
| ext_csd[EXT_CSD_GP_SIZE_MULT_3_0]; |
| gp3_part_sz = 512l * regl * erase_sz * wp_sz; |
| if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_3) { |
| enh_area_sz += gp3_part_sz; |
| printf("Enhanced GP3 Partition Size [GP_SIZE_MULT_3]: 0x%06x\n", regl); |
| printf(" i.e. %lu KiB\n", gp3_part_sz); |
| } |
| |
| regl = (ext_csd[EXT_CSD_GP_SIZE_MULT_2_2] << 16) | |
| (ext_csd[EXT_CSD_GP_SIZE_MULT_2_1] << 8) | |
| ext_csd[EXT_CSD_GP_SIZE_MULT_2_0]; |
| gp2_part_sz = 512l * regl * erase_sz * wp_sz; |
| if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_2) { |
| enh_area_sz += gp2_part_sz; |
| printf("Enhanced GP2 Partition Size [GP_SIZE_MULT_2]: 0x%06x\n", regl); |
| printf(" i.e. %lu KiB\n", gp2_part_sz); |
| } |
| |
| regl = (ext_csd[EXT_CSD_GP_SIZE_MULT_1_2] << 16) | |
| (ext_csd[EXT_CSD_GP_SIZE_MULT_1_1] << 8) | |
| ext_csd[EXT_CSD_GP_SIZE_MULT_1_0]; |
| gp1_part_sz = 512l * regl * erase_sz * wp_sz; |
| if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_1) { |
| enh_area_sz += gp1_part_sz; |
| printf("Enhanced GP1 Partition Size [GP_SIZE_MULT_1]: 0x%06x\n", regl); |
| printf(" i.e. %lu KiB\n", gp1_part_sz); |
| } |
| |
| regl = (ext_csd[EXT_CSD_ENH_SIZE_MULT_2] << 16) | |
| (ext_csd[EXT_CSD_ENH_SIZE_MULT_1] << 8) | |
| ext_csd[EXT_CSD_ENH_SIZE_MULT_0]; |
| user_area_sz = 512l * regl * erase_sz * wp_sz; |
| if (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & EXT_CSD_ENH_USR) { |
| enh_area_sz += user_area_sz; |
| printf("Enhanced User Data Area Size [ENH_SIZE_MULT]: 0x%06x\n", regl); |
| printf(" i.e. %lu KiB\n", user_area_sz); |
| } |
| |
| regl = (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_2] << 16) | |
| (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_1] << 8) | |
| ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_0]; |
| max_enh_area_sz = 512l * regl * erase_sz * wp_sz; |
| printf("Max Enhanced Area Size [MAX_ENH_SIZE_MULT]: 0x%06x\n", regl); |
| printf(" i.e. %lu KiB\n", max_enh_area_sz); |
| if (enh_area_sz > max_enh_area_sz) { |
| fprintf(stderr, |
| "Programmed total enhanced size %lu KiB cannot exceed max enhanced area %lu KiB %s\n", |
| enh_area_sz, max_enh_area_sz, device); |
| return 1; |
| } |
| total_sz = get_sector_count(ext_csd) / 2; |
| total_gp_user_sz = gp4_part_sz + gp3_part_sz + gp2_part_sz + |
| gp1_part_sz + user_area_sz; |
| if (total_gp_user_sz > total_sz) { |
| fprintf(stderr, |
| "requested total partition size %lu KiB cannot exceed card capacity %lu KiB %s\n", |
| total_gp_user_sz, total_sz, device); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| int do_create_gp_partition(int nargs, char **argv) |
| { |
| __u8 value; |
| __u8 ext_csd[512]; |
| __u8 address; |
| int fd, ret; |
| char *device; |
| int dry_run = 1; |
| int partition, enh_attr, ext_attr; |
| unsigned int length_kib, gp_size_mult; |
| unsigned long align; |
| |
| if (nargs != 7) { |
| fprintf(stderr, "Usage: mmc gp create <-y|-n|-c> <length KiB> <partition> <enh_attr> <ext_attr> </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| if (!strcmp("-y", argv[1])) { |
| dry_run = 0; |
| } else if (!strcmp("-c", argv[1])) { |
| dry_run = 2; |
| } |
| |
| length_kib = strtol(argv[2], NULL, 10); |
| partition = strtol(argv[3], NULL, 10); |
| enh_attr = strtol(argv[4], NULL, 10); |
| ext_attr = strtol(argv[5], NULL, 10); |
| device = argv[6]; |
| |
| if (partition < 1 || partition > 4) { |
| printf("Invalid gp partition number; valid range [1-4].\n"); |
| exit(1); |
| } |
| |
| if (enh_attr && ext_attr) { |
| printf("Not allowed to set both enhanced attribute and extended attribute\n"); |
| exit(1); |
| } |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| /* assert not PARTITION_SETTING_COMPLETED */ |
| if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED]) { |
| printf(" Device is already partitioned\n"); |
| exit(1); |
| } |
| |
| align = 512l * get_hc_wp_grp_size(ext_csd) * get_hc_erase_grp_size(ext_csd); |
| gp_size_mult = (length_kib + align/2l) / align; |
| |
| /* set EXT_CSD_ERASE_GROUP_DEF bit 0 */ |
| ret = write_extcsd_value(fd, EXT_CSD_ERASE_GROUP_DEF, 0x1, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x1 to EXT_CSD[%d] in %s\n", |
| EXT_CSD_ERASE_GROUP_DEF, device); |
| exit(1); |
| } |
| |
| value = (gp_size_mult >> 16) & 0xff; |
| address = EXT_CSD_GP_SIZE_MULT_1_2 + (partition - 1) * 3; |
| ret = write_extcsd_value(fd, address, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| value, address, device); |
| exit(1); |
| } |
| value = (gp_size_mult >> 8) & 0xff; |
| address = EXT_CSD_GP_SIZE_MULT_1_1 + (partition - 1) * 3; |
| ret = write_extcsd_value(fd, address, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| value, address, device); |
| exit(1); |
| } |
| value = gp_size_mult & 0xff; |
| address = EXT_CSD_GP_SIZE_MULT_1_0 + (partition - 1) * 3; |
| ret = write_extcsd_value(fd, address, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| value, address, device); |
| exit(1); |
| } |
| |
| value = ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE]; |
| if (enh_attr) |
| value |= (1 << partition); |
| else |
| value &= ~(1 << partition); |
| |
| ret = write_extcsd_value(fd, EXT_CSD_PARTITIONS_ATTRIBUTE, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write EXT_CSD_ENH_%x to EXT_CSD[%d] in %s\n", |
| partition, EXT_CSD_PARTITIONS_ATTRIBUTE, device); |
| exit(1); |
| } |
| |
| address = EXT_CSD_EXT_PARTITIONS_ATTRIBUTE_0 + (partition - 1) / 2; |
| value = ext_csd[address]; |
| if (ext_attr) |
| value |= (ext_attr << (4 * ((partition - 1) % 2))); |
| else |
| value &= (0xF << (4 * ((partition % 2)))); |
| |
| ret = write_extcsd_value(fd, address, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%x to EXT_CSD[%d] in %s\n", |
| value, address, device); |
| exit(1); |
| } |
| |
| ret = check_enhanced_area_total_limit(device, fd); |
| if (ret) |
| exit(1); |
| |
| if (set_partitioning_setting_completed(dry_run, device, fd)) |
| exit(1); |
| |
| return 0; |
| } |
| |
| int do_enh_area_set(int nargs, char **argv) |
| { |
| __u8 value; |
| __u8 ext_csd[512]; |
| int fd, ret; |
| char *device; |
| int dry_run = 1; |
| unsigned int start_kib, length_kib, enh_start_addr, enh_size_mult; |
| unsigned long align; |
| |
| if (nargs != 5) { |
| fprintf(stderr, "Usage: mmc enh_area set <-y|-n|-c> <start KiB> <length KiB> </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| if (!strcmp("-y", argv[1])) { |
| dry_run = 0; |
| } else if (!strcmp("-c", argv[1])) { |
| dry_run = 2; |
| } |
| |
| start_kib = strtol(argv[2], NULL, 10); |
| length_kib = strtol(argv[3], NULL, 10); |
| device = argv[4]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| /* assert ENH_ATTRIBUTE_EN */ |
| if (!(ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & EXT_CSD_ENH_ATTRIBUTE_EN)) |
| { |
| printf(" Device cannot have enhanced tech.\n"); |
| exit(1); |
| } |
| |
| /* assert not PARTITION_SETTING_COMPLETED */ |
| if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED]) |
| { |
| printf(" Device is already partitioned\n"); |
| exit(1); |
| } |
| |
| align = 512l * get_hc_wp_grp_size(ext_csd) * get_hc_erase_grp_size(ext_csd); |
| |
| enh_size_mult = (length_kib + align/2l) / align; |
| |
| enh_start_addr = start_kib * (1024 / (is_blockaddresed(ext_csd) ? 512 : 1)); |
| enh_start_addr /= align; |
| enh_start_addr *= align; |
| |
| /* set EXT_CSD_ERASE_GROUP_DEF bit 0 */ |
| ret = write_extcsd_value(fd, EXT_CSD_ERASE_GROUP_DEF, 0x1, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x1 to " |
| "EXT_CSD[%d] in %s\n", |
| EXT_CSD_ERASE_GROUP_DEF, device); |
| exit(1); |
| } |
| |
| /* write to ENH_START_ADDR and ENH_SIZE_MULT and PARTITIONS_ATTRIBUTE's ENH_USR bit */ |
| value = (enh_start_addr >> 24) & 0xff; |
| ret = write_extcsd_value(fd, EXT_CSD_ENH_START_ADDR_3, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", value, |
| EXT_CSD_ENH_START_ADDR_3, device); |
| exit(1); |
| } |
| value = (enh_start_addr >> 16) & 0xff; |
| ret = write_extcsd_value(fd, EXT_CSD_ENH_START_ADDR_2, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", value, |
| EXT_CSD_ENH_START_ADDR_2, device); |
| exit(1); |
| } |
| value = (enh_start_addr >> 8) & 0xff; |
| ret = write_extcsd_value(fd, EXT_CSD_ENH_START_ADDR_1, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", value, |
| EXT_CSD_ENH_START_ADDR_1, device); |
| exit(1); |
| } |
| value = enh_start_addr & 0xff; |
| ret = write_extcsd_value(fd, EXT_CSD_ENH_START_ADDR_0, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", value, |
| EXT_CSD_ENH_START_ADDR_0, device); |
| exit(1); |
| } |
| |
| value = (enh_size_mult >> 16) & 0xff; |
| ret = write_extcsd_value(fd, EXT_CSD_ENH_SIZE_MULT_2, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", value, |
| EXT_CSD_ENH_SIZE_MULT_2, device); |
| exit(1); |
| } |
| value = (enh_size_mult >> 8) & 0xff; |
| ret = write_extcsd_value(fd, EXT_CSD_ENH_SIZE_MULT_1, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", value, |
| EXT_CSD_ENH_SIZE_MULT_1, device); |
| exit(1); |
| } |
| value = enh_size_mult & 0xff; |
| ret = write_extcsd_value(fd, EXT_CSD_ENH_SIZE_MULT_0, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to " |
| "EXT_CSD[%d] in %s\n", value, |
| EXT_CSD_ENH_SIZE_MULT_0, device); |
| exit(1); |
| } |
| value = ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] | EXT_CSD_ENH_USR; |
| ret = write_extcsd_value(fd, EXT_CSD_PARTITIONS_ATTRIBUTE, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write EXT_CSD_ENH_USR to " |
| "EXT_CSD[%d] in %s\n", |
| EXT_CSD_PARTITIONS_ATTRIBUTE, device); |
| exit(1); |
| } |
| |
| ret = check_enhanced_area_total_limit(device, fd); |
| if (ret) |
| exit(1); |
| |
| printf("Done setting ENH_USR area on %s\n", device); |
| |
| if (set_partitioning_setting_completed(dry_run, device, fd)) |
| exit(1); |
| |
| return 0; |
| } |
| |
| int do_write_reliability_set(int nargs, char **argv) |
| { |
| __u8 value; |
| __u8 ext_csd[512]; |
| int fd, ret; |
| |
| int dry_run = 1; |
| int partition; |
| char *device; |
| |
| if (nargs != 4) { |
| fprintf(stderr,"Usage: mmc write_reliability set <-y|-n|-c> <partition> </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| if (!strcmp("-y", argv[1])) { |
| dry_run = 0; |
| } else if (!strcmp("-c", argv[1])) { |
| dry_run = 2; |
| } |
| |
| partition = strtol(argv[2], NULL, 10); |
| device = argv[3]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| /* assert not PARTITION_SETTING_COMPLETED */ |
| if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED]) |
| { |
| printf(" Device is already partitioned\n"); |
| exit(1); |
| } |
| |
| /* assert HS_CTRL_REL */ |
| if (!(ext_csd[EXT_CSD_WR_REL_PARAM] & HS_CTRL_REL)) { |
| printf("Cannot set write reliability parameters, WR_REL_SET is " |
| "read-only\n"); |
| exit(1); |
| } |
| |
| value = ext_csd[EXT_CSD_WR_REL_SET] | (1<<partition); |
| ret = write_extcsd_value(fd, EXT_CSD_WR_REL_SET, value, 0); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| value, EXT_CSD_WR_REL_SET, device); |
| exit(1); |
| } |
| |
| printf("Done setting EXT_CSD_WR_REL_SET to 0x%02x on %s\n", |
| value, device); |
| |
| if (set_partitioning_setting_completed(dry_run, device, fd)) |
| exit(1); |
| |
| return 0; |
| } |
| |
| int do_read_extcsd(int nargs, char **argv) |
| { |
| __u8 ext_csd[512], ext_csd_rev, reg; |
| __u32 regl; |
| int fd, ret; |
| char *device; |
| const char *str; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc extcsd read </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| ext_csd_rev = ext_csd[EXT_CSD_REV]; |
| |
| switch (ext_csd_rev) { |
| case 8: |
| str = "5.1"; |
| break; |
| case 7: |
| str = "5.0"; |
| break; |
| case 6: |
| str = "4.5"; |
| break; |
| case 5: |
| str = "4.41"; |
| break; |
| case 3: |
| str = "4.3"; |
| break; |
| case 2: |
| str = "4.2"; |
| break; |
| case 1: |
| str = "4.1"; |
| break; |
| case 0: |
| str = "4.0"; |
| break; |
| default: |
| goto out_free; |
| } |
| printf("=============================================\n"); |
| printf(" Extended CSD rev 1.%d (MMC %s)\n", ext_csd_rev, str); |
| printf("=============================================\n\n"); |
| |
| if (ext_csd_rev < 3) |
| goto out_free; /* No ext_csd */ |
| |
| /* Parse the Extended CSD registers. |
| * Reserved bit should be read as "0" in case of spec older |
| * than A441. |
| */ |
| reg = ext_csd[EXT_CSD_S_CMD_SET]; |
| printf("Card Supported Command sets [S_CMD_SET: 0x%02x]\n", reg); |
| if (!reg) |
| printf(" - Standard MMC command sets\n"); |
| |
| reg = ext_csd[EXT_CSD_HPI_FEATURE]; |
| printf("HPI Features [HPI_FEATURE: 0x%02x]: ", reg); |
| if (reg & EXT_CSD_HPI_SUPP) { |
| if (reg & EXT_CSD_HPI_IMPL) |
| printf("implementation based on CMD12\n"); |
| else |
| printf("implementation based on CMD13\n"); |
| } |
| |
| printf("Background operations support [BKOPS_SUPPORT: 0x%02x]\n", |
| ext_csd[502]); |
| |
| if (ext_csd_rev >= 6) { |
| printf("Max Packet Read Cmd [MAX_PACKED_READS: 0x%02x]\n", |
| ext_csd[501]); |
| printf("Max Packet Write Cmd [MAX_PACKED_WRITES: 0x%02x]\n", |
| ext_csd[500]); |
| printf("Data TAG support [DATA_TAG_SUPPORT: 0x%02x]\n", |
| ext_csd[499]); |
| |
| printf("Data TAG Unit Size [TAG_UNIT_SIZE: 0x%02x]\n", |
| ext_csd[498]); |
| printf("Tag Resources Size [TAG_RES_SIZE: 0x%02x]\n", |
| ext_csd[497]); |
| printf("Context Management Capabilities" |
| " [CONTEXT_CAPABILITIES: 0x%02x]\n", ext_csd[496]); |
| printf("Large Unit Size [LARGE_UNIT_SIZE_M1: 0x%02x]\n", |
| ext_csd[495]); |
| printf("Extended partition attribute support" |
| " [EXT_SUPPORT: 0x%02x]\n", ext_csd[494]); |
| printf("Generic CMD6 Timer [GENERIC_CMD6_TIME: 0x%02x]\n", |
| ext_csd[248]); |
| printf("Power off notification [POWER_OFF_LONG_TIME: 0x%02x]\n", |
| ext_csd[247]); |
| printf("Cache Size [CACHE_SIZE] is %d KiB\n", |
| (ext_csd[249] << 0 | (ext_csd[250] << 8) | |
| (ext_csd[251] << 16) | (ext_csd[252] << 24)) / 8); |
| } |
| |
| /* A441: Reserved [501:247] |
| A43: reserved [246:229] */ |
| if (ext_csd_rev >= 5) { |
| printf("Background operations status" |
| " [BKOPS_STATUS: 0x%02x]\n", ext_csd[246]); |
| |
| /* CORRECTLY_PRG_SECTORS_NUM [245:242] TODO */ |
| |
| printf("1st Initialisation Time after programmed sector" |
| " [INI_TIMEOUT_AP: 0x%02x]\n", ext_csd[241]); |
| |
| /* A441: reserved [240] */ |
| printf("Power class for 52MHz, DDR at 3.6V" |
| " [PWR_CL_DDR_52_360: 0x%02x]\n", ext_csd[239]); |
| printf("Power class for 52MHz, DDR at 1.95V" |
| " [PWR_CL_DDR_52_195: 0x%02x]\n", ext_csd[238]); |
| |
| /* A441: reserved [237-236] */ |
| |
| if (ext_csd_rev >= 6) { |
| printf("Power class for 200MHz at 3.6V" |
| " [PWR_CL_200_360: 0x%02x]\n", ext_csd[237]); |
| printf("Power class for 200MHz, at 1.95V" |
| " [PWR_CL_200_195: 0x%02x]\n", ext_csd[236]); |
| } |
| printf("Minimum Performance for 8bit at 52MHz in DDR mode:\n"); |
| printf(" [MIN_PERF_DDR_W_8_52: 0x%02x]\n", ext_csd[235]); |
| printf(" [MIN_PERF_DDR_R_8_52: 0x%02x]\n", ext_csd[234]); |
| /* A441: reserved [233] */ |
| printf("TRIM Multiplier [TRIM_MULT: 0x%02x]\n", ext_csd[232]); |
| printf("Secure Feature support [SEC_FEATURE_SUPPORT: 0x%02x]\n", |
| ext_csd[231]); |
| } |
| if (ext_csd_rev == 5) { /* Obsolete in 4.5 */ |
| printf("Secure Erase Multiplier [SEC_ERASE_MULT: 0x%02x]\n", |
| ext_csd[230]); |
| printf("Secure TRIM Multiplier [SEC_TRIM_MULT: 0x%02x]\n", |
| ext_csd[229]); |
| } |
| reg = ext_csd[EXT_CSD_BOOT_INFO]; |
| printf("Boot Information [BOOT_INFO: 0x%02x]\n", reg); |
| if (reg & EXT_CSD_BOOT_INFO_ALT) |
| printf(" Device supports alternative boot method\n"); |
| if (reg & EXT_CSD_BOOT_INFO_DDR_DDR) |
| printf(" Device supports dual data rate during boot\n"); |
| if (reg & EXT_CSD_BOOT_INFO_HS_MODE) |
| printf(" Device supports high speed timing during boot\n"); |
| |
| /* A441/A43: reserved [227] */ |
| printf("Boot partition size [BOOT_SIZE_MULTI: 0x%02x]\n", ext_csd[226]); |
| printf("Access size [ACC_SIZE: 0x%02x]\n", ext_csd[225]); |
| |
| reg = get_hc_erase_grp_size(ext_csd); |
| printf("High-capacity erase unit size [HC_ERASE_GRP_SIZE: 0x%02x]\n", |
| reg); |
| printf(" i.e. %u KiB\n", 512 * reg); |
| |
| printf("High-capacity erase timeout [ERASE_TIMEOUT_MULT: 0x%02x]\n", |
| ext_csd[223]); |
| printf("Reliable write sector count [REL_WR_SEC_C: 0x%02x]\n", |
| ext_csd[222]); |
| |
| reg = get_hc_wp_grp_size(ext_csd); |
| printf("High-capacity W protect group size [HC_WP_GRP_SIZE: 0x%02x]\n", |
| reg); |
| printf(" i.e. %lu KiB\n", 512l * get_hc_erase_grp_size(ext_csd) * reg); |
| |
| printf("Sleep current (VCC) [S_C_VCC: 0x%02x]\n", ext_csd[220]); |
| printf("Sleep current (VCCQ) [S_C_VCCQ: 0x%02x]\n", ext_csd[219]); |
| /* A441/A43: reserved [218] */ |
| printf("Sleep/awake timeout [S_A_TIMEOUT: 0x%02x]\n", ext_csd[217]); |
| /* A441/A43: reserved [216] */ |
| |
| unsigned int sectors = get_sector_count(ext_csd); |
| printf("Sector Count [SEC_COUNT: 0x%08x]\n", sectors); |
| if (is_blockaddresed(ext_csd)) |
| printf(" Device is block-addressed\n"); |
| else |
| printf(" Device is NOT block-addressed\n"); |
| |
| /* A441/A43: reserved [211] */ |
| printf("Minimum Write Performance for 8bit:\n"); |
| printf(" [MIN_PERF_W_8_52: 0x%02x]\n", ext_csd[210]); |
| printf(" [MIN_PERF_R_8_52: 0x%02x]\n", ext_csd[209]); |
| printf(" [MIN_PERF_W_8_26_4_52: 0x%02x]\n", ext_csd[208]); |
| printf(" [MIN_PERF_R_8_26_4_52: 0x%02x]\n", ext_csd[207]); |
| printf("Minimum Write Performance for 4bit:\n"); |
| printf(" [MIN_PERF_W_4_26: 0x%02x]\n", ext_csd[206]); |
| printf(" [MIN_PERF_R_4_26: 0x%02x]\n", ext_csd[205]); |
| /* A441/A43: reserved [204] */ |
| printf("Power classes registers:\n"); |
| printf(" [PWR_CL_26_360: 0x%02x]\n", ext_csd[203]); |
| printf(" [PWR_CL_52_360: 0x%02x]\n", ext_csd[202]); |
| printf(" [PWR_CL_26_195: 0x%02x]\n", ext_csd[201]); |
| printf(" [PWR_CL_52_195: 0x%02x]\n", ext_csd[200]); |
| |
| /* A43: reserved [199:198] */ |
| if (ext_csd_rev >= 5) { |
| printf("Partition switching timing " |
| "[PARTITION_SWITCH_TIME: 0x%02x]\n", ext_csd[199]); |
| printf("Out-of-interrupt busy timing" |
| " [OUT_OF_INTERRUPT_TIME: 0x%02x]\n", ext_csd[198]); |
| } |
| |
| /* A441/A43: reserved [197] [195] [193] [190] [188] |
| * [186] [184] [182] [180] [176] */ |
| |
| if (ext_csd_rev >= 6) |
| printf("I/O Driver Strength [DRIVER_STRENGTH: 0x%02x]\n", |
| ext_csd[197]); |
| |
| /* DEVICE_TYPE in A45, CARD_TYPE in A441 */ |
| reg = ext_csd[196]; |
| printf("Card Type [CARD_TYPE: 0x%02x]\n", reg); |
| if (reg & 0x80) printf(" HS400 Dual Data Rate eMMC @200MHz 1.2VI/O\n"); |
| if (reg & 0x40) printf(" HS400 Dual Data Rate eMMC @200MHz 1.8VI/O\n"); |
| if (reg & 0x20) printf(" HS200 Single Data Rate eMMC @200MHz 1.2VI/O\n"); |
| if (reg & 0x10) printf(" HS200 Single Data Rate eMMC @200MHz 1.8VI/O\n"); |
| if (reg & 0x08) printf(" HS Dual Data Rate eMMC @52MHz 1.2VI/O\n"); |
| if (reg & 0x04) printf(" HS Dual Data Rate eMMC @52MHz 1.8V or 3VI/O\n"); |
| if (reg & 0x02) printf(" HS eMMC @52MHz - at rated device voltage(s)\n"); |
| if (reg & 0x01) printf(" HS eMMC @26MHz - at rated device voltage(s)\n"); |
| |
| printf("CSD structure version [CSD_STRUCTURE: 0x%02x]\n", ext_csd[194]); |
| /* ext_csd_rev = ext_csd[EXT_CSD_REV] (already done!!!) */ |
| printf("Command set [CMD_SET: 0x%02x]\n", ext_csd[191]); |
| printf("Command set revision [CMD_SET_REV: 0x%02x]\n", ext_csd[189]); |
| printf("Power class [POWER_CLASS: 0x%02x]\n", ext_csd[187]); |
| printf("High-speed interface timing [HS_TIMING: 0x%02x]\n", |
| ext_csd[185]); |
| if (ext_csd_rev >= 8) |
| printf("Enhanced Strobe mode [STROBE_SUPPORT: 0x%02x]\n", |
| ext_csd[184]); |
| /* bus_width: ext_csd[183] not readable */ |
| printf("Erased memory content [ERASED_MEM_CONT: 0x%02x]\n", |
| ext_csd[181]); |
| reg = ext_csd[EXT_CSD_BOOT_CFG]; |
| printf("Boot configuration bytes [PARTITION_CONFIG: 0x%02x]\n", reg); |
| switch ((reg & EXT_CSD_BOOT_CFG_EN)>>3) { |
| case 0x0: |
| printf(" Not boot enable\n"); |
| break; |
| case 0x1: |
| printf(" Boot Partition 1 enabled\n"); |
| break; |
| case 0x2: |
| printf(" Boot Partition 2 enabled\n"); |
| break; |
| case 0x7: |
| printf(" User Area Enabled for boot\n"); |
| break; |
| } |
| switch (reg & EXT_CSD_BOOT_CFG_ACC) { |
| case 0x0: |
| printf(" No access to boot partition\n"); |
| break; |
| case 0x1: |
| printf(" R/W Boot Partition 1\n"); |
| break; |
| case 0x2: |
| printf(" R/W Boot Partition 2\n"); |
| break; |
| case 0x3: |
| printf(" R/W Replay Protected Memory Block (RPMB)\n"); |
| break; |
| default: |
| printf(" Access to General Purpose partition %d\n", |
| (reg & EXT_CSD_BOOT_CFG_ACC) - 3); |
| break; |
| } |
| |
| printf("Boot config protection [BOOT_CONFIG_PROT: 0x%02x]\n", |
| ext_csd[178]); |
| printf("Boot bus Conditions [BOOT_BUS_CONDITIONS: 0x%02x]\n", |
| ext_csd[177]); |
| printf("High-density erase group definition" |
| " [ERASE_GROUP_DEF: 0x%02x]\n", ext_csd[EXT_CSD_ERASE_GROUP_DEF]); |
| |
| print_writeprotect_boot_status(ext_csd); |
| |
| if (ext_csd_rev >= 5) { |
| /* A441]: reserved [172] */ |
| printf("User area write protection register" |
| " [USER_WP]: 0x%02x\n", ext_csd[171]); |
| /* A441]: reserved [170] */ |
| printf("FW configuration [FW_CONFIG]: 0x%02x\n", ext_csd[169]); |
| printf("RPMB Size [RPMB_SIZE_MULT]: 0x%02x\n", ext_csd[168]); |
| |
| reg = ext_csd[EXT_CSD_WR_REL_SET]; |
| const char * const fast = "existing data is at risk if a power " |
| "failure occurs during a write operation"; |
| const char * const reliable = "the device protects existing " |
| "data if a power failure occurs during a write " |
| "operation"; |
| printf("Write reliability setting register" |
| " [WR_REL_SET]: 0x%02x\n", reg); |
| |
| printf(" user area: %s\n", (reg & (1<<0)) ? reliable : fast); |
| int i; |
| for (i = 1; i <= 4; i++) { |
| printf(" partition %d: %s\n", i, |
| (reg & (1<<i)) ? reliable : fast); |
| } |
| |
| reg = ext_csd[EXT_CSD_WR_REL_PARAM]; |
| printf("Write reliability parameter register" |
| " [WR_REL_PARAM]: 0x%02x\n", reg); |
| if (reg & 0x01) |
| printf(" Device supports writing EXT_CSD_WR_REL_SET\n"); |
| if (reg & 0x04) |
| printf(" Device supports the enhanced def. of reliable " |
| "write\n"); |
| |
| /* sanitize_start ext_csd[165]]: not readable |
| * bkops_start ext_csd[164]]: only writable */ |
| printf("Enable background operations handshake" |
| " [BKOPS_EN]: 0x%02x\n", ext_csd[163]); |
| printf("H/W reset function" |
| " [RST_N_FUNCTION]: 0x%02x\n", ext_csd[162]); |
| printf("HPI management [HPI_MGMT]: 0x%02x\n", ext_csd[161]); |
| reg = ext_csd[EXT_CSD_PARTITIONING_SUPPORT]; |
| printf("Partitioning Support [PARTITIONING_SUPPORT]: 0x%02x\n", |
| reg); |
| if (reg & EXT_CSD_PARTITIONING_EN) |
| printf(" Device support partitioning feature\n"); |
| else |
| printf(" Device NOT support partitioning feature\n"); |
| if (reg & EXT_CSD_ENH_ATTRIBUTE_EN) |
| printf(" Device can have enhanced tech.\n"); |
| else |
| printf(" Device cannot have enhanced tech.\n"); |
| |
| regl = (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_2] << 16) | |
| (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_1] << 8) | |
| ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT_0]; |
| |
| printf("Max Enhanced Area Size [MAX_ENH_SIZE_MULT]: 0x%06x\n", |
| regl); |
| unsigned int wp_sz = get_hc_wp_grp_size(ext_csd); |
| unsigned int erase_sz = get_hc_erase_grp_size(ext_csd); |
| printf(" i.e. %lu KiB\n", 512l * regl * wp_sz * erase_sz); |
| |
| printf("Partitions attribute [PARTITIONS_ATTRIBUTE]: 0x%02x\n", |
| ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE]); |
| reg = ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED]; |
| printf("Partitioning Setting" |
| " [PARTITION_SETTING_COMPLETED]: 0x%02x\n", |
| reg); |
| if (reg) |
| printf(" Device partition setting complete\n"); |
| else |
| printf(" Device partition setting NOT complete\n"); |
| |
| printf("General Purpose Partition Size\n" |
| " [GP_SIZE_MULT_4]: 0x%06x\n", (ext_csd[154] << 16) | |
| (ext_csd[153] << 8) | ext_csd[152]); |
| printf(" [GP_SIZE_MULT_3]: 0x%06x\n", (ext_csd[151] << 16) | |
| (ext_csd[150] << 8) | ext_csd[149]); |
| printf(" [GP_SIZE_MULT_2]: 0x%06x\n", (ext_csd[148] << 16) | |
| (ext_csd[147] << 8) | ext_csd[146]); |
| printf(" [GP_SIZE_MULT_1]: 0x%06x\n", (ext_csd[145] << 16) | |
| (ext_csd[144] << 8) | ext_csd[143]); |
| |
| regl = (ext_csd[EXT_CSD_ENH_SIZE_MULT_2] << 16) | |
| (ext_csd[EXT_CSD_ENH_SIZE_MULT_1] << 8) | |
| ext_csd[EXT_CSD_ENH_SIZE_MULT_0]; |
| printf("Enhanced User Data Area Size" |
| " [ENH_SIZE_MULT]: 0x%06x\n", regl); |
| printf(" i.e. %lu KiB\n", 512l * regl * |
| get_hc_erase_grp_size(ext_csd) * |
| get_hc_wp_grp_size(ext_csd)); |
| |
| regl = (ext_csd[EXT_CSD_ENH_START_ADDR_3] << 24) | |
| (ext_csd[EXT_CSD_ENH_START_ADDR_2] << 16) | |
| (ext_csd[EXT_CSD_ENH_START_ADDR_1] << 8) | |
| ext_csd[EXT_CSD_ENH_START_ADDR_0]; |
| printf("Enhanced User Data Start Address" |
| " [ENH_START_ADDR]: 0x%08x\n", regl); |
| printf(" i.e. %llu bytes offset\n", (is_blockaddresed(ext_csd) ? |
| 512ll : 1ll) * regl); |
| |
| /* A441]: reserved [135] */ |
| printf("Bad Block Management mode" |
| " [SEC_BAD_BLK_MGMNT]: 0x%02x\n", ext_csd[134]); |
| /* A441: reserved [133:0] */ |
| } |
| /* B45 */ |
| if (ext_csd_rev >= 6) { |
| int j; |
| /* tcase_support ext_csd[132] not readable */ |
| printf("Periodic Wake-up [PERIODIC_WAKEUP]: 0x%02x\n", |
| ext_csd[131]); |
| printf("Program CID/CSD in DDR mode support" |
| " [PROGRAM_CID_CSD_DDR_SUPPORT]: 0x%02x\n", |
| ext_csd[130]); |
| |
| for (j = 127; j >= 64; j--) |
| printf("Vendor Specific Fields" |
| " [VENDOR_SPECIFIC_FIELD[%d]]: 0x%02x\n", |
| j, ext_csd[j]); |
| |
| printf("Native sector size [NATIVE_SECTOR_SIZE]: 0x%02x\n", |
| ext_csd[63]); |
| printf("Sector size emulation [USE_NATIVE_SECTOR]: 0x%02x\n", |
| ext_csd[62]); |
| printf("Sector size [DATA_SECTOR_SIZE]: 0x%02x\n", ext_csd[61]); |
| printf("1st initialization after disabling sector" |
| " size emulation [INI_TIMEOUT_EMU]: 0x%02x\n", |
| ext_csd[60]); |
| printf("Class 6 commands control [CLASS_6_CTRL]: 0x%02x\n", |
| ext_csd[59]); |
| printf("Number of addressed group to be Released" |
| "[DYNCAP_NEEDED]: 0x%02x\n", ext_csd[58]); |
| printf("Exception events control" |
| " [EXCEPTION_EVENTS_CTRL]: 0x%04x\n", |
| (ext_csd[57] << 8) | ext_csd[56]); |
| printf("Exception events status" |
| "[EXCEPTION_EVENTS_STATUS]: 0x%04x\n", |
| (ext_csd[55] << 8) | ext_csd[54]); |
| printf("Extended Partitions Attribute" |
| " [EXT_PARTITIONS_ATTRIBUTE]: 0x%04x\n", |
| (ext_csd[53] << 8) | ext_csd[52]); |
| |
| for (j = 51; j >= 37; j--) |
| printf("Context configuration" |
| " [CONTEXT_CONF[%d]]: 0x%02x\n", j, ext_csd[j]); |
| |
| printf("Packed command status" |
| " [PACKED_COMMAND_STATUS]: 0x%02x\n", ext_csd[36]); |
| printf("Packed command failure index" |
| " [PACKED_FAILURE_INDEX]: 0x%02x\n", ext_csd[35]); |
| printf("Power Off Notification" |
| " [POWER_OFF_NOTIFICATION]: 0x%02x\n", ext_csd[34]); |
| printf("Control to turn the Cache ON/OFF" |
| " [CACHE_CTRL]: 0x%02x\n", ext_csd[33]); |
| /* flush_cache ext_csd[32] not readable */ |
| printf("Control to turn the Cache Barrier ON/OFF" |
| " [BARRIER_CTRL]: 0x%02x\n", ext_csd[31]); |
| /*Reserved [30:0] */ |
| } |
| |
| if (ext_csd_rev >= 7) { |
| printf("eMMC Firmware Version: %.8s\n", (char*)&ext_csd[EXT_CSD_FIRMWARE_VERSION]); |
| printf("eMMC Life Time Estimation A [EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_A]: 0x%02x\n", |
| ext_csd[EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_A]); |
| printf("eMMC Life Time Estimation B [EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_B]: 0x%02x\n", |
| ext_csd[EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_B]); |
| printf("eMMC Pre EOL information [EXT_CSD_PRE_EOL_INFO]: 0x%02x\n", |
| ext_csd[EXT_CSD_PRE_EOL_INFO]); |
| reg = ext_csd[EXT_CSD_SECURE_REMOVAL_TYPE]; |
| printf("Secure Removal Type [SECURE_REMOVAL_TYPE]: 0x%02x\n", reg); |
| printf(" information is configured to be removed "); |
| /* Bit [5:4]: Configure Secure Removal Type */ |
| switch ((reg & EXT_CSD_CONFIG_SECRM_TYPE) >> 4) { |
| case 0x0: |
| printf("by an erase of the physical memory\n"); |
| break; |
| case 0x1: |
| printf("by an overwriting the addressed locations" |
| " with a character followed by an erase\n"); |
| break; |
| case 0x2: |
| printf("by an overwriting the addressed locations" |
| " with a character, its complement, then a random character\n"); |
| break; |
| case 0x3: |
| printf("using a vendor defined\n"); |
| break; |
| } |
| /* Bit [3:0]: Supported Secure Removal Type */ |
| printf(" Supported Secure Removal Type:\n"); |
| if (reg & 0x01) |
| printf(" information removed by an erase of the physical memory\n"); |
| if (reg & 0x02) |
| printf(" information removed by an overwriting the addressed locations" |
| " with a character followed by an erase\n"); |
| if (reg & 0x04) |
| printf(" information removed by an overwriting the addressed locations" |
| " with a character, its complement, then a random character\n"); |
| if (reg & 0x08) |
| printf(" information removed using a vendor defined\n"); |
| } |
| |
| if (ext_csd_rev >= 8) { |
| printf("Command Queue Support [CMDQ_SUPPORT]: 0x%02x\n", |
| ext_csd[EXT_CSD_CMDQ_SUPPORT]); |
| printf("Command Queue Depth [CMDQ_DEPTH]: %u\n", |
| (ext_csd[EXT_CSD_CMDQ_DEPTH] & 0x1f) + 1); |
| printf("Command Enabled [CMDQ_MODE_EN]: 0x%02x\n", |
| ext_csd[EXT_CSD_CMDQ_MODE_EN]); |
| printf("Note: CMDQ_MODE_EN may not indicate the runtime CMDQ ON or OFF.\n" |
| "Please check sysfs node '/sys/devices/.../mmc_host/mmcX/mmcX:XXXX/cmdq_en'\n"); |
| } |
| out_free: |
| return ret; |
| } |
| |
| int do_write_extcsd(int nargs, char **argv) |
| { |
| int fd, ret; |
| int offset, value; |
| char *device; |
| |
| if (nargs != 4) { |
| fprintf(stderr, "Usage: mmc extcsd write <offset> <value> </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| offset = strtol(argv[1], NULL, 0); |
| value = strtol(argv[2], NULL, 0); |
| device = argv[3]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = write_extcsd_value(fd, offset, value, 0); |
| if (ret) { |
| fprintf(stderr, |
| "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| value, offset, device); |
| exit(1); |
| } |
| |
| return ret; |
| } |
| |
| int do_sanitize(int nargs, char **argv) |
| { |
| int fd, ret; |
| char *device; |
| unsigned int timeout = 0; |
| |
| if (nargs != 2 && nargs != 3) { |
| fprintf(stderr, "Usage: mmc sanitize </path/to/mmcblkX> [timeout_in_ms]\n"); |
| exit(1); |
| } |
| |
| if (nargs == 3) |
| timeout = strtol(argv[2], NULL, 10); |
| |
| device = argv[1]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = write_extcsd_value(fd, EXT_CSD_SANITIZE_START, 1, timeout); |
| if (ret) { |
| fprintf(stderr, "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| 1, EXT_CSD_SANITIZE_START, device); |
| exit(1); |
| } |
| |
| close(fd); |
| return ret; |
| |
| } |
| |
| #define DO_IO(func, fd, buf, nbyte) \ |
| ({ \ |
| ssize_t ret = 0, r; \ |
| do { \ |
| r = func(fd, buf + ret, nbyte - ret); \ |
| if (r < 0 && errno != EINTR) { \ |
| ret = -1; \ |
| break; \ |
| } \ |
| else if (r > 0) \ |
| ret += r; \ |
| } while (r != 0 && (size_t)ret < nbyte); \ |
| \ |
| ret; \ |
| }) |
| |
| #define RPMB_MULTI_CMD_MAX_CMDS 3 |
| |
| enum rpmb_op_type { |
| MMC_RPMB_WRITE_KEY = 0x01, |
| MMC_RPMB_READ_CNT = 0x02, |
| MMC_RPMB_WRITE = 0x03, |
| MMC_RPMB_READ = 0x04, |
| |
| /* For internal usage only, do not use it directly */ |
| MMC_RPMB_READ_RESP = 0x05 |
| }; |
| |
| struct rpmb_frame { |
| u_int8_t stuff[196]; |
| u_int8_t key_mac[32]; |
| u_int8_t data[256]; |
| u_int8_t nonce[16]; |
| u_int32_t write_counter; |
| u_int16_t addr; |
| u_int16_t block_count; |
| u_int16_t result; |
| u_int16_t req_resp; |
| }; |
| |
| static inline void set_single_cmd(struct mmc_ioc_cmd *ioc, __u32 opcode, |
| int write_flag, unsigned int blocks, |
| __u32 arg) |
| { |
| ioc->opcode = opcode; |
| ioc->write_flag = write_flag; |
| ioc->arg = arg; |
| ioc->blksz = 512; |
| ioc->blocks = blocks; |
| ioc->flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; |
| } |
| |
| /* Performs RPMB operation. |
| * |
| * @fd: RPMB device on which we should perform ioctl command |
| * @frame_in: input RPMB frame, should be properly inited |
| * @frame_out: output (result) RPMB frame. Caller is responsible for checking |
| * result and req_resp for output frame. |
| * @out_cnt: count of outer frames. Used only for multiple blocks reading, |
| * in the other cases -EINVAL will be returned. |
| */ |
| static int do_rpmb_op(int fd, |
| const struct rpmb_frame *frame_in, |
| struct rpmb_frame *frame_out, |
| unsigned int out_cnt) |
| { |
| int err; |
| u_int16_t rpmb_type; |
| struct mmc_ioc_multi_cmd *mioc; |
| struct mmc_ioc_cmd *ioc; |
| struct rpmb_frame frame_status; |
| |
| memset(&frame_status, 0, sizeof(frame_status)); |
| |
| if (!frame_in || !frame_out || !out_cnt) |
| return -EINVAL; |
| |
| /* prepare arguments for MMC_IOC_MULTI_CMD ioctl */ |
| mioc = (struct mmc_ioc_multi_cmd *) |
| calloc(1, sizeof (struct mmc_ioc_multi_cmd) + |
| RPMB_MULTI_CMD_MAX_CMDS * sizeof (struct mmc_ioc_cmd)); |
| if (!mioc) { |
| return -ENOMEM; |
| } |
| |
| rpmb_type = be16toh(frame_in->req_resp); |
| |
| switch(rpmb_type) { |
| case MMC_RPMB_WRITE: |
| case MMC_RPMB_WRITE_KEY: |
| if (out_cnt != 1) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| mioc->num_of_cmds = 3; |
| |
| /* Write request */ |
| ioc = &mioc->cmds[0]; |
| set_single_cmd(ioc, MMC_WRITE_MULTIPLE_BLOCK, (1 << 31) | 1, 1, 0); |
| mmc_ioc_cmd_set_data((*ioc), frame_in); |
| |
| /* Result request */ |
| ioc = &mioc->cmds[1]; |
| frame_status.req_resp = htobe16(MMC_RPMB_READ_RESP); |
| set_single_cmd(ioc, MMC_WRITE_MULTIPLE_BLOCK, 1, 1, 0); |
| mmc_ioc_cmd_set_data((*ioc), &frame_status); |
| |
| /* Get response */ |
| ioc = &mioc->cmds[2]; |
| set_single_cmd(ioc, MMC_READ_MULTIPLE_BLOCK, 0, 1, 0); |
| mmc_ioc_cmd_set_data((*ioc), frame_out); |
| |
| break; |
| case MMC_RPMB_READ_CNT: |
| if (out_cnt != 1) { |
| err = -EINVAL; |
| goto out; |
| } |
| /* fall through */ |
| |
| case MMC_RPMB_READ: |
| mioc->num_of_cmds = 2; |
| |
| /* Read request */ |
| ioc = &mioc->cmds[0]; |
| set_single_cmd(ioc, MMC_WRITE_MULTIPLE_BLOCK, 1, 1, 0); |
| mmc_ioc_cmd_set_data((*ioc), frame_in); |
| |
| /* Get response */ |
| ioc = &mioc->cmds[1]; |
| set_single_cmd(ioc, MMC_READ_MULTIPLE_BLOCK, 0, out_cnt, 0); |
| mmc_ioc_cmd_set_data((*ioc), frame_out); |
| |
| break; |
| default: |
| err = -EINVAL; |
| goto out; |
| } |
| |
| err = ioctl(fd, MMC_IOC_MULTI_CMD, mioc); |
| |
| out: |
| free(mioc); |
| return err; |
| } |
| |
| int do_rpmb_write_key(int nargs, char **argv) |
| { |
| int ret, dev_fd, key_fd; |
| struct rpmb_frame frame_in = { |
| .req_resp = htobe16(MMC_RPMB_WRITE_KEY) |
| }, frame_out; |
| |
| if (nargs != 3) { |
| fprintf(stderr, "Usage: mmc rpmb write-key </path/to/mmcblkXrpmb> </path/to/key>\n"); |
| exit(1); |
| } |
| |
| dev_fd = open(argv[1], O_RDWR); |
| if (dev_fd < 0) { |
| perror("device open"); |
| exit(1); |
| } |
| |
| if (0 == strcmp(argv[2], "-")) |
| key_fd = STDIN_FILENO; |
| else { |
| key_fd = open(argv[2], O_RDONLY); |
| if (key_fd < 0) { |
| perror("can't open key file"); |
| exit(1); |
| } |
| } |
| |
| /* Read the auth key */ |
| ret = DO_IO(read, key_fd, frame_in.key_mac, sizeof(frame_in.key_mac)); |
| if (ret < 0) { |
| perror("read the key"); |
| exit(1); |
| } else if (ret != sizeof(frame_in.key_mac)) { |
| printf("Auth key must be %lu bytes length, but we read only %d, exit\n", |
| (unsigned long)sizeof(frame_in.key_mac), |
| ret); |
| exit(1); |
| } |
| |
| /* Execute RPMB op */ |
| ret = do_rpmb_op(dev_fd, &frame_in, &frame_out, 1); |
| if (ret != 0) { |
| perror("RPMB ioctl failed"); |
| exit(1); |
| } |
| |
| /* Check RPMB response */ |
| if (frame_out.result != 0) { |
| printf("RPMB operation failed, retcode 0x%04x\n", |
| be16toh(frame_out.result)); |
| exit(1); |
| } |
| |
| close(dev_fd); |
| if (key_fd != STDIN_FILENO) |
| close(key_fd); |
| |
| return ret; |
| } |
| |
| int rpmb_read_counter(int dev_fd, unsigned int *cnt) |
| { |
| int ret; |
| struct rpmb_frame frame_in = { |
| .req_resp = htobe16(MMC_RPMB_READ_CNT) |
| }, frame_out; |
| |
| /* Execute RPMB op */ |
| ret = do_rpmb_op(dev_fd, &frame_in, &frame_out, 1); |
| if (ret != 0) { |
| perror("RPMB ioctl failed"); |
| exit(1); |
| } |
| |
| /* Check RPMB response */ |
| if (frame_out.result != 0) { |
| *cnt = 0; |
| return be16toh(frame_out.result); |
| } |
| |
| *cnt = be32toh(frame_out.write_counter); |
| |
| return 0; |
| } |
| |
| int do_rpmb_read_counter(int nargs, char **argv) |
| { |
| int ret, dev_fd; |
| unsigned int cnt; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc rpmb read-counter </path/to/mmcblkXrpmb>\n"); |
| exit(1); |
| } |
| |
| dev_fd = open(argv[1], O_RDWR); |
| if (dev_fd < 0) { |
| perror("device open"); |
| exit(1); |
| } |
| |
| ret = rpmb_read_counter(dev_fd, &cnt); |
| |
| /* Check RPMB response */ |
| if (ret != 0) { |
| printf("RPMB operation failed, retcode 0x%04x\n", ret); |
| exit(1); |
| } |
| |
| close(dev_fd); |
| |
| printf("Counter value: 0x%08x\n", cnt); |
| |
| return ret; |
| } |
| |
| int do_rpmb_read_block(int nargs, char **argv) |
| { |
| int i, ret, dev_fd, data_fd, key_fd = -1; |
| uint16_t addr; |
| /* |
| * for reading RPMB, number of blocks is set by CMD23 only, the packet |
| * frame field for that is set to 0. So, the type is not u16 but uint! |
| */ |
| unsigned int blocks_cnt; |
| unsigned char key[32]; |
| struct rpmb_frame frame_in = { |
| .req_resp = htobe16(MMC_RPMB_READ), |
| }, *frame_out_p; |
| |
| if (nargs != 5 && nargs != 6) { |
| fprintf(stderr, "Usage: mmc rpmb read-block </path/to/mmcblkXrpmb> <address> <blocks count> </path/to/output_file> [/path/to/key]\n"); |
| exit(1); |
| } |
| |
| dev_fd = open(argv[1], O_RDWR); |
| if (dev_fd < 0) { |
| perror("device open"); |
| exit(1); |
| } |
| |
| /* Get block address */ |
| errno = 0; |
| addr = strtol(argv[2], NULL, 0); |
| if (errno) { |
| perror("incorrect address"); |
| exit(1); |
| } |
| frame_in.addr = htobe16(addr); |
| |
| /* Get blocks count */ |
| errno = 0; |
| blocks_cnt = strtol(argv[3], NULL, 0); |
| if (errno) { |
| perror("incorrect blocks count"); |
| exit(1); |
| } |
| |
| if (!blocks_cnt) { |
| printf("please, specify valid blocks count number\n"); |
| exit(1); |
| } |
| |
| frame_out_p = calloc(sizeof(*frame_out_p), blocks_cnt); |
| if (!frame_out_p) { |
| printf("can't allocate memory for RPMB outer frames\n"); |
| exit(1); |
| } |
| |
| /* Write 256b data */ |
| if (0 == strcmp(argv[4], "-")) |
| data_fd = STDOUT_FILENO; |
| else { |
| data_fd = open(argv[4], O_WRONLY | O_CREAT | O_APPEND, |
| S_IRUSR | S_IWUSR); |
| if (data_fd < 0) { |
| perror("can't open output file"); |
| exit(1); |
| } |
| } |
| |
| /* Key is specified */ |
| if (nargs == 6) { |
| if (0 == strcmp(argv[5], "-")) |
| key_fd = STDIN_FILENO; |
| else { |
| key_fd = open(argv[5], O_RDONLY); |
| if (key_fd < 0) { |
| perror("can't open input key file"); |
| exit(1); |
| } |
| } |
| |
| ret = DO_IO(read, key_fd, key, sizeof(key)); |
| if (ret < 0) { |
| perror("read the key data"); |
| exit(1); |
| } else if (ret != sizeof(key)) { |
| printf("Data must be %lu bytes length, but we read only %d, exit\n", |
| (unsigned long)sizeof(key), |
| ret); |
| exit(1); |
| } |
| } |
| |
| /* Execute RPMB op */ |
| ret = do_rpmb_op(dev_fd, &frame_in, frame_out_p, blocks_cnt); |
| if (ret != 0) { |
| perror("RPMB ioctl failed"); |
| exit(1); |
| } |
| |
| /* Check RPMB response */ |
| if (frame_out_p[blocks_cnt - 1].result != 0) { |
| printf("RPMB operation failed, retcode 0x%04x\n", |
| be16toh(frame_out_p[blocks_cnt - 1].result)); |
| exit(1); |
| } |
| |
| /* Do we have to verify data against key? */ |
| if (nargs == 6) { |
| unsigned char mac[32]; |
| hmac_sha256_ctx ctx; |
| struct rpmb_frame *frame_out = NULL; |
| |
| hmac_sha256_init(&ctx, key, sizeof(key)); |
| for (i = 0; i < blocks_cnt; i++) { |
| frame_out = &frame_out_p[i]; |
| hmac_sha256_update(&ctx, frame_out->data, |
| sizeof(*frame_out) - |
| offsetof(struct rpmb_frame, data)); |
| } |
| |
| hmac_sha256_final(&ctx, mac, sizeof(mac)); |
| |
| /* Impossible */ |
| assert(frame_out); |
| |
| /* Compare calculated MAC and MAC from last frame */ |
| if (memcmp(mac, frame_out->key_mac, sizeof(mac))) { |
| printf("RPMB MAC missmatch\n"); |
| exit(1); |
| } |
| } |
| |
| /* Write data */ |
| for (i = 0; i < blocks_cnt; i++) { |
| struct rpmb_frame *frame_out = &frame_out_p[i]; |
| ret = DO_IO(write, data_fd, frame_out->data, sizeof(frame_out->data)); |
| if (ret < 0) { |
| perror("write the data"); |
| exit(1); |
| } else if (ret != sizeof(frame_out->data)) { |
| printf("Data must be %lu bytes length, but we wrote only %d, exit\n", |
| (unsigned long)sizeof(frame_out->data), |
| ret); |
| exit(1); |
| } |
| } |
| |
| free(frame_out_p); |
| close(dev_fd); |
| if (data_fd != STDOUT_FILENO) |
| close(data_fd); |
| if (key_fd != -1 && key_fd != STDIN_FILENO) |
| close(key_fd); |
| |
| return ret; |
| } |
| |
| int do_rpmb_write_block(int nargs, char **argv) |
| { |
| int ret, dev_fd, key_fd, data_fd; |
| unsigned char key[32]; |
| uint16_t addr; |
| unsigned int cnt; |
| struct rpmb_frame frame_in = { |
| .req_resp = htobe16(MMC_RPMB_WRITE), |
| .block_count = htobe16(1) |
| }, frame_out; |
| |
| if (nargs != 5) { |
| fprintf(stderr, "Usage: mmc rpmb write-block </path/to/mmcblkXrpmb> <address> </path/to/input_file> </path/to/key>\n"); |
| exit(1); |
| } |
| |
| dev_fd = open(argv[1], O_RDWR); |
| if (dev_fd < 0) { |
| perror("device open"); |
| exit(1); |
| } |
| |
| ret = rpmb_read_counter(dev_fd, &cnt); |
| /* Check RPMB response */ |
| if (ret != 0) { |
| printf("RPMB read counter operation failed, retcode 0x%04x\n", ret); |
| exit(1); |
| } |
| frame_in.write_counter = htobe32(cnt); |
| |
| /* Get block address */ |
| errno = 0; |
| addr = strtol(argv[2], NULL, 0); |
| if (errno) { |
| perror("incorrect address"); |
| exit(1); |
| } |
| frame_in.addr = htobe16(addr); |
| |
| /* Read 256b data */ |
| if (0 == strcmp(argv[3], "-")) |
| data_fd = STDIN_FILENO; |
| else { |
| data_fd = open(argv[3], O_RDONLY); |
| if (data_fd < 0) { |
| perror("can't open input file"); |
| exit(1); |
| } |
| } |
| |
| ret = DO_IO(read, data_fd, frame_in.data, sizeof(frame_in.data)); |
| if (ret < 0) { |
| perror("read the data"); |
| exit(1); |
| } else if (ret != sizeof(frame_in.data)) { |
| printf("Data must be %lu bytes length, but we read only %d, exit\n", |
| (unsigned long)sizeof(frame_in.data), |
| ret); |
| exit(1); |
| } |
| |
| /* Read the auth key */ |
| if (0 == strcmp(argv[4], "-")) |
| key_fd = STDIN_FILENO; |
| else { |
| key_fd = open(argv[4], O_RDONLY); |
| if (key_fd < 0) { |
| perror("can't open key file"); |
| exit(1); |
| } |
| } |
| |
| ret = DO_IO(read, key_fd, key, sizeof(key)); |
| if (ret < 0) { |
| perror("read the key"); |
| exit(1); |
| } else if (ret != sizeof(key)) { |
| printf("Auth key must be %lu bytes length, but we read only %d, exit\n", |
| (unsigned long)sizeof(key), |
| ret); |
| exit(1); |
| } |
| |
| /* Calculate HMAC SHA256 */ |
| hmac_sha256( |
| key, sizeof(key), |
| frame_in.data, sizeof(frame_in) - offsetof(struct rpmb_frame, data), |
| frame_in.key_mac, sizeof(frame_in.key_mac)); |
| |
| /* Execute RPMB op */ |
| ret = do_rpmb_op(dev_fd, &frame_in, &frame_out, 1); |
| if (ret != 0) { |
| perror("RPMB ioctl failed"); |
| exit(1); |
| } |
| |
| /* Check RPMB response */ |
| if (frame_out.result != 0) { |
| printf("RPMB operation failed, retcode 0x%04x\n", |
| be16toh(frame_out.result)); |
| exit(1); |
| } |
| |
| close(dev_fd); |
| if (data_fd != STDIN_FILENO) |
| close(data_fd); |
| if (key_fd != STDIN_FILENO) |
| close(key_fd); |
| |
| return ret; |
| } |
| |
| int do_cache_ctrl(int value, int nargs, char **argv) |
| { |
| __u8 ext_csd[512]; |
| int fd, ret; |
| char *device; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc cache enable </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| exit(1); |
| } |
| |
| if (ext_csd[EXT_CSD_REV] < EXT_CSD_REV_V4_5) { |
| fprintf(stderr, |
| "The CACHE option is only availabe on devices >= " |
| "MMC 4.5 %s\n", device); |
| exit(1); |
| } |
| |
| /* If the cache size is zero, this device does not have a cache */ |
| if (!(ext_csd[EXT_CSD_CACHE_SIZE_3] || |
| ext_csd[EXT_CSD_CACHE_SIZE_2] || |
| ext_csd[EXT_CSD_CACHE_SIZE_1] || |
| ext_csd[EXT_CSD_CACHE_SIZE_0])) { |
| fprintf(stderr, |
| "The CACHE option is not available on %s\n", |
| device); |
| exit(1); |
| } |
| ret = write_extcsd_value(fd, EXT_CSD_CACHE_CTRL, value, 0); |
| if (ret) { |
| fprintf(stderr, |
| "Could not write 0x%02x to EXT_CSD[%d] in %s\n", |
| value, EXT_CSD_CACHE_CTRL, device); |
| exit(1); |
| } |
| |
| close(fd); |
| return ret; |
| } |
| |
| int do_cache_en(int nargs, char **argv) |
| { |
| return do_cache_ctrl(1, nargs, argv); |
| } |
| |
| int do_cache_dis(int nargs, char **argv) |
| { |
| return do_cache_ctrl(0, nargs, argv); |
| } |
| |
| static int erase(int dev_fd, __u32 argin, __u32 start, __u32 end) |
| { |
| int ret = 0; |
| struct mmc_ioc_multi_cmd *multi_cmd; |
| __u8 ext_csd[512]; |
| |
| |
| ret = read_extcsd(dev_fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD\n"); |
| exit(1); |
| } |
| if (ext_csd[EXT_CSD_ERASE_GROUP_DEF] & 0x01) { |
| fprintf(stderr, "High Capacity Erase Unit Size=%d bytes\n" \ |
| "High Capacity Erase Timeout=%d ms\n" \ |
| "High Capacity Write Protect Group Size=%d bytes\n", |
| ext_csd[224]*0x80000, |
| ext_csd[223]*300, |
| ext_csd[221]*ext_csd[224]*0x80000); |
| } |
| |
| multi_cmd = calloc(1, sizeof(struct mmc_ioc_multi_cmd) + |
| 3 * sizeof(struct mmc_ioc_cmd)); |
| if (!multi_cmd) { |
| perror("Failed to allocate memory"); |
| return -ENOMEM; |
| } |
| |
| multi_cmd->num_of_cmds = 3; |
| /* Set erase start address */ |
| multi_cmd->cmds[0].opcode = MMC_ERASE_GROUP_START; |
| multi_cmd->cmds[0].arg = start; |
| multi_cmd->cmds[0].flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC; |
| multi_cmd->cmds[0].write_flag = 1; |
| |
| /* Set erase end address */ |
| multi_cmd->cmds[1].opcode = MMC_ERASE_GROUP_END; |
| multi_cmd->cmds[1].arg = end; |
| multi_cmd->cmds[1].flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC; |
| multi_cmd->cmds[1].write_flag = 1; |
| |
| /* Send Erase Command */ |
| multi_cmd->cmds[2].opcode = MMC_ERASE; |
| multi_cmd->cmds[2].arg = argin; |
| multi_cmd->cmds[2].cmd_timeout_ms = 300*255*255; |
| multi_cmd->cmds[2].flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; |
| multi_cmd->cmds[2].write_flag = 1; |
| |
| /* send erase cmd with multi-cmd */ |
| ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd); |
| if (ret) |
| perror("Erase multi-cmd ioctl"); |
| |
| /* Does not work for SPI cards */ |
| if (multi_cmd->cmds[1].response[0] & R1_ERASE_PARAM) { |
| fprintf(stderr, "Erase start response: 0x%08x\n", |
| multi_cmd->cmds[0].response[0]); |
| ret = -EIO; |
| } |
| if (multi_cmd->cmds[2].response[0] & R1_ERASE_SEQ_ERROR) { |
| fprintf(stderr, "Erase response: 0x%08x\n", |
| multi_cmd->cmds[2].response[0]); |
| ret = -EIO; |
| } |
| |
| free(multi_cmd); |
| return ret; |
| } |
| |
| int do_erase(int nargs, char **argv) |
| { |
| int dev_fd, ret; |
| char *print_str; |
| __u8 ext_csd[512], checkup_mask = 0; |
| __u32 arg, start, end; |
| |
| if (nargs != 5) { |
| fprintf(stderr, "Usage: erase <type> <start addr> <end addr> </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| if (strstr(argv[2], "0x") || strstr(argv[2], "0X")) |
| start = strtol(argv[2], NULL, 16); |
| else |
| start = strtol(argv[2], NULL, 10); |
| |
| if (strstr(argv[3], "0x") || strstr(argv[3], "0X")) |
| end = strtol(argv[3], NULL, 16); |
| else |
| end = strtol(argv[3], NULL, 10); |
| |
| if (end < start) { |
| fprintf(stderr, "erase start [0x%08x] > erase end [0x%08x]\n", |
| start, end); |
| exit(1); |
| } |
| |
| if (strcmp(argv[1], "legacy") == 0) { |
| arg = 0x00000000; |
| print_str = "Legacy Erase"; |
| } else if (strcmp(argv[1], "discard") == 0) { |
| arg = 0x00000003; |
| print_str = "Discard"; |
| } else if (strcmp(argv[1], "secure-erase") == 0) { |
| print_str = "Secure Erase"; |
| checkup_mask = EXT_CSD_SEC_ER_EN; |
| arg = 0x80000000; |
| } else if (strcmp(argv[1], "secure-trim1") == 0) { |
| print_str = "Secure Trim Step 1"; |
| checkup_mask = EXT_CSD_SEC_ER_EN | EXT_CSD_SEC_GB_CL_EN; |
| arg = 0x80000001; |
| } else if (strcmp(argv[1], "secure-trim2") == 0) { |
| print_str = "Secure Trim Step 2"; |
| checkup_mask = EXT_CSD_SEC_ER_EN | EXT_CSD_SEC_GB_CL_EN; |
| arg = 0x80008000; |
| } else if (strcmp(argv[1], "trim") == 0) { |
| print_str = "Trim"; |
| checkup_mask = EXT_CSD_SEC_GB_CL_EN; |
| arg = 0x00000001; |
| } else { |
| fprintf(stderr, "Unknown erase type: %s\n", argv[1]); |
| exit(1); |
| } |
| |
| dev_fd = open(argv[4], O_RDWR); |
| if (dev_fd < 0) { |
| perror(argv[4]); |
| exit(1); |
| } |
| |
| if (checkup_mask) { |
| ret = read_extcsd(dev_fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", |
| argv[4]); |
| goto out; |
| } |
| if ((checkup_mask & ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT]) != |
| checkup_mask) { |
| fprintf(stderr, "%s is not supported in %s\n", |
| print_str, argv[4]); |
| ret = -ENOTSUP; |
| goto out; |
| } |
| |
| } |
| printf("Executing %s from 0x%08x to 0x%08x\n", print_str, start, end); |
| |
| ret = erase(dev_fd, arg, start, end); |
| out: |
| printf(" %s %s!\n\n", print_str, ret ? "Failed" : "Succeed"); |
| close(dev_fd); |
| return ret; |
| } |
| |
| static void set_ffu_single_cmd(struct mmc_ioc_multi_cmd *multi_cmd, |
| __u8 *ext_csd, unsigned int bytes, __u8 *buf, |
| off_t offset) |
| { |
| __u32 arg = per_byte_htole32(&ext_csd[EXT_CSD_FFU_ARG_0]); |
| |
| /* send block count */ |
| set_single_cmd(&multi_cmd->cmds[1], MMC_SET_BLOCK_COUNT, 0, 0, |
| bytes / 512); |
| multi_cmd->cmds[1].flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC; |
| |
| /* |
| * send image chunk: blksz and blocks essentially do not matter, as |
| * long as the product is fw_size, but some hosts don't handle larger |
| * blksz well. |
| */ |
| set_single_cmd(&multi_cmd->cmds[2], MMC_WRITE_MULTIPLE_BLOCK, 1, |
| bytes / 512, arg); |
| mmc_ioc_cmd_set_data(multi_cmd->cmds[2], buf + offset); |
| } |
| |
| int do_ffu(int nargs, char **argv) |
| { |
| int dev_fd, img_fd; |
| int retry = 3, ret = -EINVAL; |
| unsigned int sect_size; |
| __u8 ext_csd[512]; |
| __u8 *buf = NULL; |
| off_t fw_size, bytes_left, off; |
| char *device; |
| struct mmc_ioc_multi_cmd *multi_cmd = NULL; |
| unsigned int default_chunk = MMC_IOC_MAX_BYTES; |
| __u32 sect_done = 0; |
| |
| assert (nargs == 3 || nargs == 4); |
| |
| device = argv[2]; |
| dev_fd = open(device, O_RDWR); |
| if (dev_fd < 0) { |
| perror("device open failed"); |
| exit(1); |
| } |
| img_fd = open(argv[1], O_RDONLY); |
| if (img_fd < 0) { |
| perror("image open failed"); |
| close(dev_fd); |
| exit(1); |
| } |
| |
| ret = read_extcsd(dev_fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| goto out; |
| } |
| |
| if (ext_csd[EXT_CSD_REV] < EXT_CSD_REV_V5_0) { |
| fprintf(stderr, |
| "The FFU feature is only available on devices >= " |
| "MMC 5.0, not supported in %s\n", device); |
| goto out; |
| } |
| |
| if (!(ext_csd[EXT_CSD_SUPPORTED_MODES] & EXT_CSD_FFU)) { |
| fprintf(stderr, "FFU is not supported in %s\n", device); |
| goto out; |
| } |
| |
| if (ext_csd[EXT_CSD_FW_CONFIG] & EXT_CSD_UPDATE_DISABLE) { |
| fprintf(stderr, "Firmware update was disabled in %s\n", device); |
| goto out; |
| } |
| |
| fw_size = lseek(img_fd, 0, SEEK_END); |
| if (fw_size == 0) { |
| fprintf(stderr, "Wrong firmware size"); |
| goto out; |
| } |
| |
| /* allocate maximum required */ |
| buf = malloc(fw_size); |
| multi_cmd = calloc(1, sizeof(struct mmc_ioc_multi_cmd) + |
| 4 * sizeof(struct mmc_ioc_cmd)); |
| if (!buf || !multi_cmd) { |
| perror("failed to allocate memory"); |
| goto out; |
| } |
| |
| /* ensure fw is multiple of native sector size */ |
| sect_size = (ext_csd[EXT_CSD_DATA_SECTOR_SIZE] == 0) ? 512 : 4096; |
| if (fw_size % sect_size) { |
| fprintf(stderr, "Firmware data size (%jd) is not aligned!\n", (intmax_t)fw_size); |
| goto out; |
| } |
| |
| if (nargs == 4) { |
| default_chunk = strtol(argv[3], NULL, 10); |
| if (default_chunk > MMC_IOC_MAX_BYTES || default_chunk % 512) { |
| fprintf(stderr, "Invalid chunk size"); |
| goto out; |
| } |
| } |
| |
| /* prepare multi_cmd for FFU based on cmd to be used */ |
| |
| multi_cmd->num_of_cmds = 4; |
| |
| /* put device into ffu mode */ |
| fill_switch_cmd(&multi_cmd->cmds[0], EXT_CSD_MODE_CONFIG, |
| EXT_CSD_FFU_MODE); |
| |
| /* return device into normal mode */ |
| fill_switch_cmd(&multi_cmd->cmds[3], EXT_CSD_MODE_CONFIG, |
| EXT_CSD_NORMAL_MODE); |
| |
| /* read firmware */ |
| lseek(img_fd, 0, SEEK_SET); |
| if (read(img_fd, buf, fw_size) != fw_size) { |
| perror("Could not read the firmware file: "); |
| ret = -ENOSPC; |
| goto out; |
| } |
| |
| do_retry: |
| bytes_left = fw_size; |
| off = 0; |
| while (bytes_left) { |
| unsigned int chunk_size = bytes_left < default_chunk ? |
| bytes_left : default_chunk; |
| |
| /* prepare multi_cmd for FFU based on cmd to be used */ |
| set_ffu_single_cmd(multi_cmd, ext_csd, chunk_size, buf, off); |
| |
| /* send ioctl with multi-cmd */ |
| ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd); |
| |
| if (ret) { |
| perror("Multi-cmd ioctl"); |
| /* |
| * In case multi-cmd ioctl failed before exiting from |
| * ffu mode |
| */ |
| ioctl(dev_fd, MMC_IOC_CMD, &multi_cmd->cmds[3]); |
| goto out; |
| } |
| |
| bytes_left -= chunk_size; |
| off += chunk_size; |
| } |
| |
| /* |
| * By spec - check if mode operation codes are supported in ffu features, |
| * if not then skip checking number of sectors programmed after install |
| */ |
| if (!ext_csd[EXT_CSD_FFU_FEATURES]) { |
| fprintf(stderr, "Please reboot to complete firmware installation on %s\n", device); |
| ret = 0; |
| goto out; |
| } |
| |
| ret = read_extcsd(dev_fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| goto out; |
| } |
| |
| /* Test if we need to restart the download */ |
| sect_done = per_byte_htole32(&ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_0]); |
| /* By spec, host should re-start download from the first sector if sect_done is 0 */ |
| if (sect_done == 0) { |
| if (retry--) { |
| fprintf(stderr, "Programming failed. Retrying... (%d)\n", retry); |
| goto do_retry; |
| } |
| fprintf(stderr, "Programming failed! Aborting...\n"); |
| goto out; |
| } |
| |
| if ((sect_done * sect_size) == fw_size) { |
| fprintf(stderr, "Programmed %jd/%jd bytes\n", (intmax_t)fw_size, (intmax_t)fw_size); |
| fprintf(stderr, "Programming finished with status %d \n", ret); |
| } |
| else { |
| fprintf(stderr, "FW size and number of sectors written mismatch. Status return %d\n", ret); |
| goto out; |
| } |
| |
| fprintf(stderr, "Installing firmware on %s...\n", device); |
| /* Re-enter ffu mode and install the firmware */ |
| multi_cmd->num_of_cmds = 2; |
| |
| /* set ext_csd to install mode */ |
| fill_switch_cmd(&multi_cmd->cmds[1], EXT_CSD_MODE_OPERATION_CODES, |
| EXT_CSD_FFU_INSTALL); |
| |
| /* send ioctl with multi-cmd */ |
| ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd); |
| |
| if (ret) { |
| perror("Multi-cmd ioctl failed setting install mode"); |
| /* In case multi-cmd ioctl failed before exiting from ffu mode */ |
| ioctl(dev_fd, MMC_IOC_CMD, &multi_cmd->cmds[3]); |
| goto out; |
| } |
| |
| ret = read_extcsd(dev_fd, ext_csd); |
| if (ret) { |
| fprintf(stderr, "Could not read EXT_CSD from %s\n", device); |
| goto out; |
| } |
| |
| /* return status */ |
| ret = ext_csd[EXT_CSD_FFU_STATUS]; |
| if (ret) { |
| fprintf(stderr, "%s: error %d during FFU install:\n", device, ret); |
| goto out; |
| } else { |
| fprintf(stderr, "FFU finished successfully\n"); |
| } |
| |
| out: |
| free(buf); |
| free(multi_cmd); |
| close(img_fd); |
| close(dev_fd); |
| return ret; |
| } |
| |
| int do_general_cmd_read(int nargs, char **argv) |
| { |
| int dev_fd; |
| char *device; |
| char *endptr; |
| __u8 buf[512]; |
| __u32 arg = 0x01; |
| int ret = -EINVAL, i; |
| struct mmc_ioc_cmd idata; |
| |
| if (nargs != 2 && nargs != 3) { |
| fprintf(stderr, "Usage: gen_cmd read </path/to/mmcblkX> [arg]\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| dev_fd = open(device, O_RDWR); |
| if (dev_fd < 0) { |
| perror("device open failed"); |
| exit(1); |
| } |
| |
| /* arg is specified */ |
| if (nargs == 3) { |
| arg = strtol(argv[2], &endptr, 16); |
| if (errno != 0 || *endptr != '\0' || !(arg & 0x1)) { |
| fprintf(stderr, "Wrong ARG, it should be Hex number and bit0 must be 1\n"); |
| goto out; |
| } |
| } |
| |
| memset(&idata, 0, sizeof(idata)); |
| idata.write_flag = 0; |
| idata.opcode = MMC_GEN_CMD; |
| idata.arg = arg; |
| idata.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; |
| idata.blksz = 512; |
| idata.blocks = 1; |
| mmc_ioc_cmd_set_data(idata, buf); |
| |
| ret = ioctl(dev_fd, MMC_IOC_CMD, &idata); |
| if (ret) { |
| perror("ioctl"); |
| goto out; |
| } |
| |
| printf("Data:\n"); |
| for (i = 0; i < 512; i++) { |
| printf("%2x ", buf[i]); |
| if ((i + 1) % 16 == 0) |
| printf("\n"); |
| } |
| out: |
| close(dev_fd); |
| return ret; |
| } |
| |
| static void issue_cmd0(char *device, __u32 arg) |
| { |
| struct mmc_ioc_cmd idata; |
| int fd; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| memset(&idata, 0, sizeof(idata)); |
| idata.opcode = MMC_GO_IDLE_STATE; |
| idata.arg = arg; |
| idata.flags = MMC_RSP_NONE | MMC_CMD_BC; |
| |
| /* No need to check for error, it is expected */ |
| ioctl(fd, MMC_IOC_CMD, &idata); |
| close(fd); |
| } |
| |
| int do_softreset(int nargs, char **argv) |
| { |
| char *device; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc softreset </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| issue_cmd0(device, MMC_GO_IDLE_STATE_ARG); |
| |
| return 0; |
| } |
| |
| int do_preidle(int nargs, char **argv) |
| { |
| char *device; |
| |
| if (nargs != 2) { |
| fprintf(stderr, "Usage: mmc preidle </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| |
| device = argv[1]; |
| issue_cmd0(device, MMC_GO_PRE_IDLE_STATE_ARG); |
| |
| return 0; |
| } |
| |
| int do_alt_boot_op(int nargs, char **argv) |
| { |
| int fd, ret, boot_data_fd; |
| char *device, *boot_data_file; |
| struct mmc_ioc_multi_cmd *mioc; |
| __u8 ext_csd[512]; |
| __u8 *boot_buf; |
| unsigned int boot_blocks, ext_csd_boot_size; |
| |
| if (nargs != 3) { |
| fprintf(stderr, "Usage: mmc boot_op <boot_data_file> </path/to/mmcblkX>\n"); |
| exit(1); |
| } |
| boot_data_file = argv[1]; |
| device = argv[2]; |
| |
| fd = open(device, O_RDWR); |
| if (fd < 0) { |
| perror("open device"); |
| exit(1); |
| } |
| |
| ret = read_extcsd(fd, ext_csd); |
| if (ret) { |
| perror("read extcsd"); |
| goto dev_fd_close; |
| } |
| if (!(ext_csd[EXT_CSD_BOOT_INFO] & EXT_CSD_BOOT_INFO_ALT)) { |
| ret = -EINVAL; |
| perror("Card does not support alternative boot mode"); |
| goto dev_fd_close; |
| } |
| if (ext_csd[EXT_CSD_PART_CONFIG] & EXT_CSD_PART_CONFIG_ACC_ACK) { |
| ret = -EINVAL; |
| perror("Boot Ack must not be enabled"); |
| goto dev_fd_close; |
| } |
| ext_csd_boot_size = ext_csd[EXT_CSD_BOOT_MULT] * 128 * 1024; |
| boot_blocks = ext_csd_boot_size / 512; |
| if (ext_csd_boot_size > MMC_IOC_MAX_BYTES) { |
| printf("Boot partition size is bigger than IOCTL limit, limiting to 512K\n"); |
| boot_blocks = MMC_IOC_MAX_BYTES / 512; |
| } |
| |
| boot_data_fd = open(boot_data_file, O_WRONLY | O_CREAT, 0644); |
| if (boot_data_fd < 0) { |
| perror("open boot data file"); |
| ret = 1; |
| goto boot_data_close; |
| } |
| |
| boot_buf = calloc(1, sizeof(__u8) * boot_blocks * 512); |
| mioc = calloc(1, sizeof(struct mmc_ioc_multi_cmd) + |
| 2 * sizeof(struct mmc_ioc_cmd)); |
| if (!mioc || !boot_buf) { |
| perror("Failed to allocate memory"); |
| ret = -ENOMEM; |
| goto alloced_error; |
| } |
| |
| mioc->num_of_cmds = 2; |
| mioc->cmds[0].opcode = MMC_GO_IDLE_STATE; |
| mioc->cmds[0].arg = MMC_GO_PRE_IDLE_STATE_ARG; |
| mioc->cmds[0].flags = MMC_RSP_NONE | MMC_CMD_AC; |
| mioc->cmds[0].write_flag = 0; |
| |
| mioc->cmds[1].opcode = MMC_GO_IDLE_STATE; |
| mioc->cmds[1].arg = MMC_BOOT_INITIATION_ARG; |
| mioc->cmds[1].flags = MMC_RSP_NONE | MMC_CMD_ADTC; |
| mioc->cmds[1].write_flag = 0; |
| mioc->cmds[1].blksz = 512; |
| mioc->cmds[1].blocks = boot_blocks; |
| /* Access time of boot part differs wildly, spec mandates 1s */ |
| mioc->cmds[1].data_timeout_ns = 2 * 1000 * 1000 * 1000; |
| mmc_ioc_cmd_set_data(mioc->cmds[1], boot_buf); |
| |
| ret = ioctl(fd, MMC_IOC_MULTI_CMD, mioc); |
| if (ret) { |
| perror("multi-cmd ioctl error\n"); |
| goto alloced_error; |
| } |
| |
| ret = DO_IO(write, boot_data_fd, boot_buf, boot_blocks * 512); |
| if (ret < 0) { |
| perror("Write error\n"); |
| goto alloced_error; |
| } |
| ret = 0; |
| |
| alloced_error: |
| if (mioc) |
| free(mioc); |
| if (boot_buf) |
| free(boot_buf); |
| boot_data_close: |
| close(boot_data_fd); |
| dev_fd_close: |
| close(fd); |
| if (ret) |
| exit(1); |
| return 0; |
| } |