diff options
Diffstat (limited to 'common/cmd_mmc.c')
| -rw-r--r-- | common/cmd_mmc.c | 131 |
1 files changed, 130 insertions, 1 deletions
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c index 421482e..b8d494b 100644 --- a/common/cmd_mmc.c +++ b/common/cmd_mmc.c @@ -112,6 +112,48 @@ static void print_mmcinfo(struct mmc *mmc) printf("Capacity: %lld\n", mmc->capacity); printf("Bus Width: %d-bit\n", mmc->bus_width); +#ifdef CONFIG_BOOT_PARTITION_ACCESS + if (mmc->boot_size_mult == 0) { + printf("Boot Partition Size: %s\n", "No boot partition available"); + } else { + printf("Boot Partition Size: %5dKB\n", mmc->boot_size_mult * 128); + + printf("Current Partition for boot: "); + switch (mmc->boot_config & EXT_CSD_BOOT_PARTITION_ENABLE_MASK) { + case EXT_CSD_BOOT_PARTITION_DISABLE: + printf("Not bootable\n"); + break; + case EXT_CSD_BOOT_PARTITION_PART1: + printf("Boot partition 1\n"); + break; + case EXT_CSD_BOOT_PARTITION_PART2: + printf("Boot partition 2\n"); + break; + case EXT_CSD_BOOT_PARTITION_USER: + printf("User area\n"); + break; + default: + printf("Unknown\n"); + break; + } + + printf("Current Partition for read/write: "); + switch (mmc->boot_config & EXT_CSD_BOOT_PARTITION_ACCESS_MASK) { + case EXT_CSD_BOOT_PARTITION_ACCESS_DISABLE: + printf("User Area\n"); + break; + case EXT_CSD_BOOT_PARTITION_ACCESS_PART1: + printf("Boot partition 1\n"); + break; + case EXT_CSD_BOOT_PARTITION_ACCESS_PART2: + printf("Boot partition 2\n"); + break; + default: + printf("Unknown\n"); + break; + } + } +#endif } int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) @@ -144,6 +186,9 @@ U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo, int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { int rc = 0; +#ifdef CONFIG_BOOT_PARTITION_ACCESS + u32 part = 0; +#endif switch (argc) { case 3: @@ -171,6 +216,10 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) return 0; } return 1; +#ifdef CONFIG_BOOT_PARTITION_ACCESS + case 6: /* Fall through */ + part = simple_strtoul(argv[6], NULL, 10); +#endif default: /* at least 5 args */ if (strcmp(argv[1], "read") == 0) { int dev = simple_strtoul(argv[2], NULL, 10); @@ -178,6 +227,7 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) u32 cnt = simple_strtoul(argv[5], NULL, 16); u32 n; u32 blk = simple_strtoul(argv[4], NULL, 16); + struct mmc *mmc = find_mmc_device(dev); if (!mmc) @@ -188,11 +238,44 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) mmc_init(mmc); +#ifdef CONFIG_BOOT_PARTITION_ACCESS + /* After mmc_init, we now know whether this is a eSD/eMMC which support boot partition */ + if (part > 0) { + if (IS_SD(mmc)) { + if (sd_switch_partition(mmc, 1) < 0) { + printf("\nError: Fail to switch partition to %d before reading\n", 1); + return 1; + } + } else { + if (mmc_switch_partition(mmc, part) < 0) { + printf("\nError: Fail to switch partition to %d before reading\n", part); + return 1; + } + } + } +#endif + n = mmc->block_dev.block_read(dev, blk, cnt, addr); /* flush cache after read */ flush_cache((ulong)addr, cnt * 512); /* FIXME */ +#ifdef CONFIG_BOOT_PARTITION_ACCESS + /* Switch back */ + if (part > 0) { + if (IS_SD(mmc)) { + if (sd_switch_partition(mmc, 0) < 0) { + printf("\nError: Fail to switch partition back!\n"); + return 1; + } + } else { + if (mmc_switch_partition(mmc, 0) < 0) { + printf("\nError: Fail to switch partition back!\n"); + return 1; + } + } + } +#endif printf("%d blocks read: %s\n", n, (n==cnt) ? "OK" : "ERROR"); return (n == cnt) ? 0 : 1; @@ -201,6 +284,7 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) void *addr = (void *)simple_strtoul(argv[3], NULL, 16); u32 cnt = simple_strtoul(argv[5], NULL, 16); u32 n; + struct mmc *mmc = find_mmc_device(dev); int blk = simple_strtoul(argv[4], NULL, 16); @@ -213,8 +297,42 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) mmc_init(mmc); +#ifdef CONFIG_BOOT_PARTITION_ACCESS + /* After mmc_init, we now know whether this is a eSD/eMMC which support boot partition */ + if (part > 0) { + if (IS_SD(mmc)) { + if (sd_switch_partition(mmc, 1) < 0) { + printf("\nError: Fail to switch partition to %d before writing\n", 1); + return 1; + } + } else { + if (mmc_switch_partition(mmc, part) < 0) { + printf("\nError: Fail to switch partition to %d before writing\n", part); + return 1; + } + } + } +#endif + n = mmc->block_dev.block_write(dev, blk, cnt, addr); +#ifdef CONFIG_BOOT_PARTITION_ACCESS + /* Switch back */ + if (part > 0) { + if (IS_SD(mmc)) { + if (sd_switch_partition(mmc, 0) < 0) { + printf("\nError: Fail to switch partition back!\n"); + return 1; + } + } else { + if (mmc_switch_partition(mmc, 0) < 0) { + printf("\nError: Fail to switch partition back!\n"); + return 1; + } + } + } +#endif + printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR"); return (n == cnt) ? 0 : 1; @@ -227,11 +345,22 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) } } +#ifndef CONFIG_BOOT_PARTITION_ACCESS U_BOOT_CMD( mmc, 6, 1, do_mmcops, "MMC sub system", - "read <device num> addr blk# cnt\n" + "mmc read <device num> addr blk# cnt\n" "mmc write <device num> addr blk# cnt\n" "mmc rescan <device num>\n" "mmc list - lists available devices"); +#else +U_BOOT_CMD( + mmc, 7, 1, do_mmcops, + "MMC sub system", + "mmc read <device num> addr blk# cnt [partition]\n" + "mmc write <device num> addr blk# cnt [partition]\n" + "mmc rescan <device num>\n" + "mmc list - lists available devices"); +#endif #endif + |