eMMC devices have hardware partitions such as user, boot0, and boot1. Allow these names to be displayed when reading the mmc PARTITION_CONFIG field via 'mmc partconf'. Additionally allow a name to be specified when setting the PARTITION_CONFIG.
Before: u-boot=> mmc partconf 2 1 1 0 && mmc partconf 2 EXT_CSD[179], PARTITION_CONFIG: BOOT_ACK: 0x1 BOOT_PARTITION_ENABLE: 0x2 PARTITION_ACCESS: 0x0
After: u-boot=> mmc partconf 2 1 1 0 && mmc partconf 2 EXT_CSD[179], PARTITION_CONFIG: BOOT_ACK: 0x1 BOOT_PARTITION_ENABLE: 0x1 (boot0) PARTITION_ACCESS: 0x0 u-boot=> mmc partconf 2 1 boot1 0 && mmc partconf 2 EXT_CSD[179], PARTITION_CONFIG: BOOT_ACK: 0x1 BOOT_PARTITION_ENABLE: 0x2 (boot1) PARTITION_ACCESS: 0x0
Signed-off-by: Tim Harvey tharvey@gateworks.com --- cmd/mmc.c | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-)
diff --git a/cmd/mmc.c b/cmd/mmc.c index 2d5430a53079..26692a8e349b 100644 --- a/cmd/mmc.c +++ b/cmd/mmc.c @@ -14,6 +14,18 @@ #include <part.h> #include <sparse_format.h> #include <image-sparse.h> +#include <linux/ctype.h> + +static const char *mmc_partnames[] = { + "user", + "boot0", + "boot1", + "", + "", + "", + "", + "user", +};
static int curr_device = -1;
@@ -918,8 +930,8 @@ static int mmc_partconf_print(struct mmc *mmc, const char *varname)
printf("EXT_CSD[179], PARTITION_CONFIG:\n" "BOOT_ACK: 0x%x\n" - "BOOT_PARTITION_ENABLE: 0x%x\n" - "PARTITION_ACCESS: 0x%x\n", ack, part, access); + "BOOT_PARTITION_ENABLE: 0x%x (%s)\n" + "PARTITION_ACCESS: 0x%x\n", ack, part, mmc_partnames[part], access);
return CMD_RET_SUCCESS; } @@ -949,7 +961,14 @@ static int do_mmc_partconf(struct cmd_tbl *cmdtp, int flag, return mmc_partconf_print(mmc, cmd_arg2(argc, argv));
ack = dectoul(argv[2], NULL); - part_num = dectoul(argv[3], NULL); + if (!isdigit(*argv[3])) { + for (part_num = 0; part_num < ARRAY_SIZE(mmc_partnames); part_num++) { + if (!strcmp(argv[3], mmc_partnames[part_num])) + break; + } + } else { + part_num = dectoul(argv[3], NULL); + } access = dectoul(argv[4], NULL);
/* acknowledge to be sent during boot operation */