On 14 March 2018 at 15:50, Mark Craske <Mark_Craske@xxxxxxxxxx> wrote:
> From: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
>
> Certain Micron eMMC 4.5 cards might get broken when HPI feature is used
> and hence this patch disables the HPI feature for such buggy cards.
>
> In U-Boot, these cards are reported as
>
> Manufacturer: Micron (ID: 0xFE)
> OEM: 0x4E
> Name: MMC32G
> Revision: 19 (0x13)
> Serial: 959241022 Manufact. date: 8/2015 (0x82) CRC: 0x00
> Tran Speed: 52000000
> Rd Block Len: 512
> MMC version 4.5
> High Capacity: Yes
> Capacity: 29.1 GiB
> Boot Partition Size: 16 MiB
> Bus Width: 8-bit
>
> According to JEDEC JEP106 manufacturer 0xFE is Numonyx, which was
> bought by Micron.
>
> Signed-off-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
> Signed-off-by: Mark Craske <Mark_Craske@xxxxxxxxxx>
Thanks, applied for fixes and by adding a stable tag.
Kind regards
Uffe
> ---
> drivers/mmc/core/card.h | 1 +
> drivers/mmc/core/quirks.h | 6 ++++++
> 2 files changed, 7 insertions(+)
>
> diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h
> index 79a5b98..9c821ee 100644
> --- a/drivers/mmc/core/card.h
> +++ b/drivers/mmc/core/card.h
> @@ -82,6 +82,7 @@ struct mmc_fixup {
> #define CID_MANFID_APACER 0x27
> #define CID_MANFID_KINGSTON 0x70
> #define CID_MANFID_HYNIX 0x90
> +#define CID_MANFID_NUMONYX 0xFE
>
> #define END_FIXUP { NULL }
>
> diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
> index 75d3176..5153577 100644
> --- a/drivers/mmc/core/quirks.h
> +++ b/drivers/mmc/core/quirks.h
> @@ -109,6 +109,12 @@
> */
> MMC_FIXUP_EXT_CSD_REV(CID_NAME_ANY, CID_MANFID_HYNIX,
> 0x014a, add_quirk, MMC_QUIRK_BROKEN_HPI, 5),
> + /*
> + * Certain Micron (Numonyx) eMMC 4.5 cards might get broken when HPI
> + * feature is used so disable the HPI feature for such buggy cards.
> + */
> + MMC_FIXUP_EXT_CSD_REV(CID_NAME_ANY, CID_MANFID_NUMONYX,
> + 0x014e, add_quirk, MMC_QUIRK_BROKEN_HPI, 6),
>
> END_FIXUP
> };
> --
> 1.7.9.5
>
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