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mmc: show the erase group size and HC WP group size in mmcinfo output

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This adds the erase group size and high-capacity WP group size to
mmcinfo's output. The erase group size is necessary to properly align
erase requests on eMMC. The high-capacity WP group size is necessary
to properly align partitions on eMMC.

Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
This commit is contained in:
Diego Santa Cruz 2014-12-23 10:50:26 +01:00 committed by Pantelis Antoniou
parent 037dc0ab5d
commit b0361526d5
1 changed files with 8 additions and 0 deletions
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8
common/cmd_mmc.c
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@ -95,9 +95,16 @@ static void print_mmcinfo(struct mmc *mmc)
printf("Bus Width: %d-bit%s\n", mmc->bus_width, printf("Bus Width: %d-bit%s\n", mmc->bus_width,
mmc->ddr_mode ? " DDR" : ""); mmc->ddr_mode ? " DDR" : "");
puts("Erase Group Size: ");
print_size(((u64)mmc->erase_grp_size) << 9, "\n");
if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) { if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0; bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR); bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);
puts("HC WP Group Size: ");
print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");
puts("User Capacity: "); puts("User Capacity: ");
print_size(mmc->capacity_user, usr_enh ? " ENH\n" : "\n"); print_size(mmc->capacity_user, usr_enh ? " ENH\n" : "\n");
if (usr_enh) { if (usr_enh) {
@ -110,6 +117,7 @@ static void print_mmcinfo(struct mmc *mmc)
print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n"); print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
puts("RPMB Capacity: "); puts("RPMB Capacity: ");
print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n"); print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");
for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) { for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
bool is_enh = has_enh && bool is_enh = has_enh &&
(mmc->part_attr & EXT_CSD_ENH_GP(i)); (mmc->part_attr & EXT_CSD_ENH_GP(i));