lkml.org 
[lkml]   [2014]   [Nov]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [PATCH 1/3] mmc: Support FFU for eMMC v5.0
Hi,

how did you make the patch?
This patch didn't apply at Ulf's repository.


On 11/11/2014 02:13 AM, Avi Shchislowski wrote:
>
> Add eMMC5.0 ffu ext_csd fields
>
> Signed-off-by: Avi Shchislowski <avi.shchislowski@sandisk.com>
> Signed-off-by: Alex Lemberg <alex.lemberg@sandisk.com>
>
>
> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
> index 1eda8dd..3b86ed3 100644
> --- a/drivers/mmc/core/mmc.c
> +++ b/drivers/mmc/core/mmc.c
> @@ -603,6 +603,15 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
> card->ext_csd.data_sector_size = 512;
> }
>
> + /* eMMC v5 or later */
> + if (card->ext_csd.rev >= 7) {
> + card->ext_csd.ffu_capable =
> + ((ext_csd[EXT_CSD_SUPPORTED_MODE] & 0x1) == 0x1) &&
> + ((ext_csd[EXT_CSD_FW_CONFIG] & 0x1) == 0x0);

if (ext_csd[EXT_CSD_SUPPORTED_MODE] & 0x1) && !(ext_csd[EXT_CSD_FW_CONFIG] & 0x1))
card->ext_csd.ffu_capable = true;

> + card->ext_csd.ffu_mode_op = ext_csd[EXT_CSD_FFU_FEATURES];
> + } else {
> + card->ext_csd.ffu_capable = false;

Can be set to false by default before checking whether card is eMMC v5.0 or not.

card->ext_csd.ffu_capable = false;

if (card->ext_csd.rev >= 7) {
...
}

Best Regards,
Jaehoon Chung

> + }
> out:
> return err;
> }
> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
> index d424b9d..dd01efe 100644
> --- a/include/linux/mmc/card.h
> +++ b/include/linux/mmc/card.h
> @@ -81,6 +81,8 @@ struct mmc_ext_csd {
> bool hpi_en; /* HPI enablebit */
> bool hpi; /* HPI support bit */
> unsigned int hpi_cmd; /* cmd used as HPI */
> + bool ffu_capable; /* FFU support */
> + bool ffu_mode_op; /* FFU mode operation */
> bool bkops; /* background support bit */
> bool bkops_en; /* background enable bit */
> unsigned int data_sector_size; /* 512 bytes or 4KB */
> diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
> index 64ec963..787787b 100644
> --- a/include/linux/mmc/mmc.h
> +++ b/include/linux/mmc/mmc.h
> @@ -272,6 +272,9 @@ struct _mmc_csd {
> * EXT_CSD fields
> */
>
> +#define EXT_CSD_FFU_STATUS 26 /* R */
> +#define EXT_CSD_MODE_OPERATION_CODES 29 /* W */
> +#define EXT_CSD_MODE_CONFIG 30 /* R/W */
> #define EXT_CSD_FLUSH_CACHE 32 /* W */
> #define EXT_CSD_CACHE_CTRL 33 /* R/W */
> #define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */
> @@ -290,6 +293,7 @@ struct _mmc_csd {
> #define EXT_CSD_SANITIZE_START 165 /* W */
> #define EXT_CSD_WR_REL_PARAM 166 /* RO */
> #define EXT_CSD_RPMB_MULT 168 /* RO */
> +#define EXT_CSD_FW_CONFIG 169 /* R/W */
> #define EXT_CSD_BOOT_WP 173 /* R/W */
> #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
> #define EXT_CSD_PART_CONFIG 179 /* R/W */
> @@ -326,6 +330,11 @@ struct _mmc_csd {
> #define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */
> #define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */
> #define EXT_CSD_PWR_CL_DDR_200_360 253 /* RO */
> +#define EXT_CSD_NUM_OF_FW_SEC_PROG 302 /* RO, 4 bytes */
> +#define EXT_CSD_FFU_ARG 487 /* RO, 4 bytes */
> +#define EXT_CSD_OPERATION_CODE_TIMEOUT 491 /* RO */
> +#define EXT_CSD_FFU_FEATURES 492 /* RO */
> +#define EXT_CSD_SUPPORTED_MODE 493 /* RO */
> #define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */
> #define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */
> #define EXT_CSD_MAX_PACKED_WRITES 500 /* RO */
>



\
 
 \ /
  Last update: 2014-11-11 04:41    [W:0.062 / U:1.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site