diff mbox

[1/3] mmc: Support-FFU-for-eMMC-v5.0

Message ID FDD07FEB422EF948A392FDC201AEEAE64F6AFCE9@SACMBXIP02.sdcorp.global.sandisk.com (mailing list archive)
State New, archived
Headers show

Commit Message

Avi Shchislowski Nov. 6, 2014, 3:42 p.m. UTC 
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>

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Comments

Ulf Hansson Nov. 10, 2014, 9:47 a.m. UTC | #1 
On 6 November 2014 16:42, Avi Shchislowski <Avi.Shchislowski@sandisk.com> 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>

Hi Avi/Alex,

I can't review patches which are all in reply to the same thread. I
guess you are using the "in reply to" option while sending your
patches somehow. Please re-submit so I can review each patch
separately.

Kind regards
Uffe

>
> 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);
> +               card->ext_csd.ffu_mode_op = ext_csd[EXT_CSD_FFU_FEATURES];
> +       } else {
> +               card->ext_csd.ffu_capable = false;
> +       }
>  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 */
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diff mbox

Patch

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