diff options
| -rw-r--r-- | cmd/mmc.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/cmd/mmc.c b/cmd/mmc.c index 5a0b0f66075..68bbf1f5135 100644 --- a/cmd/mmc.c +++ b/cmd/mmc.c @@ -8,6 +8,8 @@ #include <command.h> #include <console.h> #include <mmc.h> +#include <sparse_format.h> +#include <image-sparse.h> static int curr_device = -1; @@ -307,6 +309,71 @@ static int do_mmc_read(cmd_tbl_t *cmdtp, int flag, } #if CONFIG_IS_ENABLED(MMC_WRITE) +#if defined(CONFIG_FASTBOOT_FLASH) +static lbaint_t mmc_sparse_write(struct sparse_storage *info, lbaint_t blk, + lbaint_t blkcnt, const void *buffer) +{ + struct blk_desc *dev_desc = info->priv; + + return blk_dwrite(dev_desc, blk, blkcnt, buffer); +} + +static lbaint_t mmc_sparse_reserve(struct sparse_storage *info, + lbaint_t blk, lbaint_t blkcnt) +{ + return blkcnt; +} + +static int do_mmc_sparse_write(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + struct sparse_storage sparse; + struct blk_desc *dev_desc; + struct mmc *mmc; + char dest[11]; + void *addr; + u32 blk; + + if (argc != 3) + return CMD_RET_USAGE; + + addr = (void *)simple_strtoul(argv[1], NULL, 16); + blk = simple_strtoul(argv[2], NULL, 16); + + if (!is_sparse_image(addr)) { + printf("Not a sparse image\n"); + return CMD_RET_FAILURE; + } + + mmc = init_mmc_device(curr_device, false); + if (!mmc) + return CMD_RET_FAILURE; + + printf("\nMMC Sparse write: dev # %d, block # %d ... ", + curr_device, blk); + + if (mmc_getwp(mmc) == 1) { + printf("Error: card is write protected!\n"); + return CMD_RET_FAILURE; + } + + dev_desc = mmc_get_blk_desc(mmc); + sparse.priv = dev_desc; + sparse.blksz = 512; + sparse.start = blk; + sparse.size = dev_desc->lba - blk; + sparse.write = mmc_sparse_write; + sparse.reserve = mmc_sparse_reserve; + sparse.mssg = NULL; + sprintf(dest, "0x" LBAF, sparse.start * sparse.blksz); + + if (write_sparse_image(&sparse, dest, addr)) + return CMD_RET_FAILURE; + else + return CMD_RET_SUCCESS; +} +#endif + static int do_mmc_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { @@ -801,6 +868,9 @@ static cmd_tbl_t cmd_mmc[] = { U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""), #if CONFIG_IS_ENABLED(MMC_WRITE) U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""), +#if defined(CONFIG_FASTBOOT_FLASH) + U_BOOT_CMD_MKENT(swrite, 3, 0, do_mmc_sparse_write, "", ""), +#endif U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""), #endif U_BOOT_CMD_MKENT(rescan, 1, 1, do_mmc_rescan, "", ""), @@ -857,6 +927,9 @@ U_BOOT_CMD( "info - display info of the current MMC device\n" "mmc read addr blk# cnt\n" "mmc write addr blk# cnt\n" +#if defined(CONFIG_FASTBOOT_FLASH) + "mmc swrite addr blk#\n" +#endif "mmc erase blk# cnt\n" "mmc rescan\n" "mmc part - lists available partition on current mmc device\n" |