On 16 October 2014 20:27, Gwendal Grignou <[email protected]> wrote:
> For eMMC 5.0 compliant device, firmware version is stored in ext_csd.
> Report firmware as a 64bit hexa decimal. Vendor can use hexa or ascii
> string to report firmware version.
> Also add FFU related EXT_CSD register and note if the device is FFU capable.
>
> Signed-off-by: Gwendal Grignou <[email protected]>
Thanks! Applied for next.
I did a minor change, see below.
Kind regards
Uffe
> ---
> drivers/mmc/core/mmc.c | 27 ++++++++++++++++++++++++++-
> include/linux/mmc/card.h | 3 +++
> include/linux/mmc/mmc.h | 3 +++
> 3 files changed, 32 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
> index 1eda8dd..9a7663a 100644
> --- a/drivers/mmc/core/mmc.c
> +++ b/drivers/mmc/core/mmc.c
> @@ -603,6 +603,14 @@ 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) {
> + memcpy(card->ext_csd.fwrev,
> &ext_csd[EXT_CSD_FIRMWARE_VERSION],
> + MMC_FIRMWARE_LEN);
> + card->ext_csd.ffu_capable =
> + (ext_csd[EXT_CSD_SUPPORTED_MODE] & 1) &&
> + !(ext_csd[EXT_CSD_FW_CONFIG] & 1);
/s /1 /0x1
> + }
> out:
> return err;
> }
> @@ -697,7 +705,7 @@ MMC_DEV_ATTR(csd, "%08x%08x%08x%08x\n", card->raw_csd[0],
> card->raw_csd[1],
> MMC_DEV_ATTR(date, "%02d/%04d\n", card->cid.month, card->cid.year);
> MMC_DEV_ATTR(erase_size, "%u\n", card->erase_size << 9);
> MMC_DEV_ATTR(preferred_erase_size, "%u\n", card->pref_erase << 9);
> -MMC_DEV_ATTR(fwrev, "0x%x\n", card->cid.fwrev);
> +MMC_DEV_ATTR(ffu_capable, "%d\n", card->ext_csd.ffu_capable);
> MMC_DEV_ATTR(hwrev, "0x%x\n", card->cid.hwrev);
> MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid);
> MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
> @@ -710,6 +718,22 @@ MMC_DEV_ATTR(enhanced_area_size, "%u\n",
> card->ext_csd.enhanced_area_size);
> MMC_DEV_ATTR(raw_rpmb_size_mult, "%#x\n", card->ext_csd.raw_rpmb_size_mult);
> MMC_DEV_ATTR(rel_sectors, "%#x\n", card->ext_csd.rel_sectors);
>
> +static ssize_t mmc_fwrev_show(struct device *dev,
> + struct device_attribute *attr,
> + char *buf)
> +{
> + struct mmc_card *card = mmc_dev_to_card(dev);
> +
> + if (card->ext_csd.rev < 7) {
> + return sprintf(buf, "0x%x\n", card->cid.fwrev);
> + } else {
> + return sprintf(buf, "0x%*phN\n", MMC_FIRMWARE_LEN,
> + card->ext_csd.fwrev);
> + }
> +}
> +
> +static DEVICE_ATTR(fwrev, S_IRUGO, mmc_fwrev_show, NULL);
> +
> static struct attribute *mmc_std_attrs[] = {
> &dev_attr_cid.attr,
> &dev_attr_csd.attr,
> @@ -717,6 +741,7 @@ static struct attribute *mmc_std_attrs[] = {
> &dev_attr_erase_size.attr,
> &dev_attr_preferred_erase_size.attr,
> &dev_attr_fwrev.attr,
> + &dev_attr_ffu_capable.attr,
> &dev_attr_hwrev.attr,
> &dev_attr_manfid.attr,
> &dev_attr_name.attr,
> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
> index d424b9d..14b54ff 100644
> --- a/include/linux/mmc/card.h
> +++ b/include/linux/mmc/card.h
> @@ -87,6 +87,9 @@ struct mmc_ext_csd {
> unsigned int data_tag_unit_size; /* DATA TAG UNIT size
> */
> unsigned int boot_ro_lock; /* ro lock support */
> bool boot_ro_lockable;
> + bool ffu_capable; /* Firmware upgrade support */
> +#define MMC_FIRMWARE_LEN 8
> + u8 fwrev[MMC_FIRMWARE_LEN]; /* FW version */
> u8 raw_exception_status; /* 54 */
> u8 raw_partition_support; /* 160 */
> u8 raw_rpmb_size_mult; /* 168 */
> diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
> index 64ec963..1af1dff 100644
> --- a/include/linux/mmc/mmc.h
> +++ b/include/linux/mmc/mmc.h
> @@ -290,6 +290,7 @@ 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 +327,8 @@ 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_FIRMWARE_VERSION 254 /* RO, 8 bytes */
> +#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 */
> --
> 2.1.0.rc2.206.gedb03e5
>
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