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mmc: report capacity for the selected partition

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Enhance the MMC core to calculate the size of each MMC partition, and
update mmc->capacity whenever a partition is selected. This causes:

mmc dev 0 1 ; mmcinfo

... to report the size of the currently selected partition, rather than
always reporting the size of the user partition.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Stephen Warren
2013-06-11 15:14:01 -06:00
committed by Andy Fleming
parent 06e4ae5f80
commit f866a46d6e
2 changed files with 68 additions and 7 deletions
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7
include/mmc.h
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@@ -158,7 +158,9 @@
/*
* EXT_CSD fields
*/
#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
#define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */
#define EXT_CSD_RPMB_MULT 168 /* RO */
#define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
#define EXT_CSD_PART_CONF 179 /* R/W */
#define EXT_CSD_BUS_WIDTH 183 /* R/W */
@@ -166,6 +168,7 @@
#define EXT_CSD_REV 192 /* RO */
#define EXT_CSD_CARD_TYPE 196 /* RO */
#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
#define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */
#define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */
#define EXT_CSD_BOOT_MULT 226 /* RO */
@@ -263,6 +266,10 @@ struct mmc {
uint write_bl_len;
uint erase_grp_size;
u64 capacity;
u64 capacity_user;
u64 capacity_boot;
u64 capacity_rpmb;
u64 capacity_gp[4];
block_dev_desc_t block_dev;
int (*send_cmd)(struct mmc *mmc,
struct mmc_cmd *cmd, struct mmc_data *data);