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authorGrégory Soutadé <gsoutade@neotion.com>2014-09-15 17:47:09 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2014-09-19 00:03:36 +0200
commit69803d4f487fc60ce740f1fe1f0d2092d97277b6 (patch)
tree924bff53656eeef629cc4a5123e390e21e956a3a
parentb4493eea4a6561bd9fa57aaa2f7d2b5ea31a1f2e (diff)
downloadop-kernel-dev-69803d4f487fc60ce740f1fe1f0d2092d97277b6.zip
op-kernel-dev-69803d4f487fc60ce740f1fe1f0d2092d97277b6.tar.gz
mmc: Replace "enhanced_area_en" attribute by "partition_setting_completed"
Replace ext_csd "enhanced_area_en" attribute by "partition_setting_completed". It was used whether or not enhanced user area is defined and without checks of EXT_CSD_PARTITION_SETTING_COMPLETED bit. Signed-off-by: Grégory Soutadé <gsoutade@neotion.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
-rw-r--r--drivers/mmc/core/mmc.c13
-rw-r--r--include/linux/mmc/card.h2
-rw-r--r--include/linux/mmc/mmc.h2
3 files changed, 11 insertions, 6 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 5b4b969..eb78fcd 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -315,7 +315,6 @@ static void mmc_manage_enhanced_area(struct mmc_card *card, u8 *ext_csd)
hc_wp_grp_sz =
ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
- card->ext_csd.enhanced_area_en = 1;
/*
* calculate the enhanced data area offset, in bytes
*/
@@ -356,13 +355,11 @@ static void mmc_manage_gp_partitions(struct mmc_card *card, u8 *ext_csd)
*/
if (ext_csd[EXT_CSD_PARTITION_SUPPORT] &
EXT_CSD_PART_SUPPORT_PART_EN) {
- if (card->ext_csd.enhanced_area_en != 1) {
+ if (card->ext_csd.partition_setting_completed) {
hc_erase_grp_sz =
ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
hc_wp_grp_sz =
ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
-
- card->ext_csd.enhanced_area_en = 1;
}
for (idx = 0; idx < MMC_NUM_GP_PARTITION; idx++) {
@@ -489,6 +486,12 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
ext_csd[EXT_CSD_TRIM_MULT];
card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT];
if (card->ext_csd.rev >= 4) {
+ if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED] &
+ EXT_CSD_PART_SETTING_COMPLETED)
+ card->ext_csd.partition_setting_completed = 1;
+ else
+ card->ext_csd.partition_setting_completed = 0;
+
mmc_manage_enhanced_area(card, ext_csd);
mmc_manage_gp_partitions(card, ext_csd);
@@ -1348,7 +1351,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
* If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF
* bit. This bit will be lost every time after a reset or power off.
*/
- if (card->ext_csd.enhanced_area_en ||
+ if (card->ext_csd.partition_setting_completed ||
(card->ext_csd.rev >= 3 && (host->caps2 & MMC_CAP2_HC_ERASE_SZ))) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_ERASE_GROUP_DEF, 1,
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 0ea795f..b0692d2 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -75,7 +75,7 @@ struct mmc_ext_csd {
unsigned int sec_trim_mult; /* Secure trim multiplier */
unsigned int sec_erase_mult; /* Secure erase multiplier */
unsigned int trim_timeout; /* In milliseconds */
- bool enhanced_area_en; /* enable bit */
+ bool partition_setting_completed; /* enable bit */
unsigned long long enhanced_area_offset; /* Units: Byte */
unsigned int enhanced_area_size; /* Units: KB */
unsigned int cache_size; /* Units: KB */
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 64ec963..78753bc 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -281,6 +281,7 @@ struct _mmc_csd {
#define EXT_CSD_EXP_EVENTS_CTRL 56 /* R/W, 2 bytes */
#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */
#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
+#define EXT_CSD_PARTITION_SETTING_COMPLETED 155 /* R/W */
#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */
#define EXT_CSD_PARTITION_SUPPORT 160 /* RO */
#define EXT_CSD_HPI_MGMT 161 /* R/W */
@@ -349,6 +350,7 @@ struct _mmc_csd {
#define EXT_CSD_PART_CONFIG_ACC_RPMB (0x3)
#define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4)
+#define EXT_CSD_PART_SETTING_COMPLETED (0x1)
#define EXT_CSD_PART_SUPPORT_PART_EN (0x1)
#define EXT_CSD_CMD_SET_NORMAL (1<<0)
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