shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 04:10:18 +09:00
Code Issues Packages Projects Releases Wiki Activity

Revert "mmc: subtract boot sectors from disk size for eMMC 4.3+ devices"

Browse Source 
This reverts commit f0b0e4bec1.

The reverted commit incorrectly calculates the size of eMMC
devices in some (all?) cases.

This revert may cause problems in cases where the bootloader was
bug-compatible and puts a GPT partition at the incorrect end of
the eMMC device.

Signed-off-by: Colin Cross <ccross@android.com>
This commit is contained in:
Colin Cross
2011-02-12 13:21:32 -08:00
parent 28e23cf73c
commit 6bb1acf2eb
2 changed files with 1 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/mmc/core/mmc.c
View File

@@ -274,13 +274,8 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
ext_csd[EXT_CSD_SEC_CNT + 3] << 24;
/* Cards with density > 2GiB are sector addressed */
if (card->ext_csd.sectors > (2u * 1024 * 1024 * 1024) / 512) {
unsigned boot_sectors;
/* size is in 256K chunks, i.e. 512 sectors each */
boot_sectors = ext_csd[EXT_CSD_BOOT_SIZE_MULTI] * 512;
card->ext_csd.sectors -= boot_sectors;
if (card->ext_csd.sectors > (2u * 1024 * 1024 * 1024) / 512)
mmc_card_set_blockaddr(card);
}
}
switch (ext_csd[EXT_CSD_CARD_TYPE] & EXT_CSD_CARD_TYPE_MASK) {

1
include/linux/mmc/mmc.h
View File

@@ -283,7 +283,6 @@ struct _mmc_csd {
#define EXT_CSD_SEC_ERASE_MULT 230 /* RO */
#define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */
#define EXT_CSD_TRIM_MULT 232 /* RO */
#define EXT_CSD_BOOT_SIZE_MULTI 226 /* RO */
/*
* EXT_CSD field definitions