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authorColin Cross <ccross@android.com>2011-02-12 13:21:32 -0800
committerColin Cross <ccross@android.com>2011-02-12 13:24:26 -0800
commit1cd64ef5c1becb1c70c432bdcae98fdb686a8173 (patch)
tree8bce303ccaa59617b7a634f63821f67dbf5eecb8
parent4c0d9cf8d550d5a2b4318f950127fdc086e5b023 (diff)
downloadqemu-1cd64ef5c1becb1c70c432bdcae98fdb686a8173.tar.gz
Revert "mmc: subtract boot sectors from disk size for eMMC 4.3+ devices"
This reverts commit f0b0e4bec1e89014f3dcef4da8bcf95428cc771c. 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. Change-Id: Ib006acf9e517b3b8f7570220c28e19c91e7b5f25 Signed-off-by: Colin Cross <ccross@android.com>
-rw-r--r--drivers/mmc/core/mmc.c7
-rw-r--r--include/linux/mmc/mmc.h1
2 files changed, 1 insertions, 7 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 45055c46d95..6909a54c39b 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -253,13 +253,8 @@ static int mmc_read_ext_csd(struct mmc_card *card)
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) {
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 1041cf5220f..dd11ae51fb6 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -266,7 +266,6 @@ 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