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Date: Mon, 15 Sep 2014 17:47:09 +0200
From: Grégory Soutadé <gsoutade@...tion.com>
To: Jaehoon Chung <jh80.chung@...sung.com>,
Ulf Hansson <ulf.hansson@...aro.org>
CC: Chris Ball <chris@...ntf.net>,
Seungwon Jeon <tgih.jun@...sung.com>,
linux-mmc <linux-mmc@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v6 0002/0003] 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@...tion.com>
---
drivers/mmc/core/mmc.c | 13 ++++++++-----
include/linux/mmc/card.h | 2 +-
include/linux/mmc/mmc.h | 2 ++
3 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 77b4cf3..64d0371 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -314,7 +314,6 @@ 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
*/
@@ -355,13 +354,11 @@ 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++) {
@@ -488,6 +485,12 @@ 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);
@@ -1324,7 +1327,7 @@ 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 d424b9d..38175be 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -74,7 +74,7 @@ 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)
--
1.7.9.5
Le 15/09/2014 06:20, Jaehoon Chung a écrit :
> On 09/12/2014 11:31 PM, Grégory Soutadé wrote:
>> 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@...tion.com>
>> ---
>> drivers/mmc/core/mmc.c | 14 +++++++++-----
>> include/linux/mmc/card.h | 2 +-
>> include/linux/mmc/mmc.h | 2 ++
>> 3 files changed, 12 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
>> index 77b4cf3..d8d3aef 100644
>> --- a/drivers/mmc/core/mmc.c
>> +++ b/drivers/mmc/core/mmc.c
>> @@ -314,7 +314,6 @@ 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
>> */
>> @@ -355,13 +354,11 @@ 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++) {
>> @@ -488,6 +485,13 @@ 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;
>> + }
>
> I remembered that Ulf mentioned these brackets can be removed.
>
> Best Regards,
> Jaehoon Chung
>> +
>> mmc_manage_enhanced_area(card, ext_csd);
>>
>> mmc_manage_gp_partitions(card, ext_csd);
>> @@ -1324,7 +1328,7 @@ 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 d424b9d..38175be 100644
>> --- a/include/linux/mmc/card.h
>> +++ b/include/linux/mmc/card.h
>> @@ -74,7 +74,7 @@ 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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