Hello Wolfram!
Thank you for adding the r8a774a1 to the list!
> From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
> Sent: 06 June 2019 12:36
> Subject: [PATCH v2 1/3] mmc: sdhi: disallow HS400 for M3-W ES1.2, RZ/G2M, and V3H
>
> Our HW engineers informed us that HS400 is not working on these SoC
> revisions.
>
> Fixes: 0f4e2054c971 ("mmc: renesas_sdhi: disable HS400 on H3 ES1.x and M3-W ES1.[012]")
> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
> ---
> drivers/mmc/host/renesas_sdhi_core.c | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
> index db73f9f1b186..683c449a2f94 100644
> --- a/drivers/mmc/host/renesas_sdhi_core.c
> +++ b/drivers/mmc/host/renesas_sdhi_core.c
> @@ -620,11 +620,16 @@ static const struct renesas_sdhi_quirks sdhi_quirks_h3_es2 = {
> .hs400_4taps = true,
> };
>
> +static const struct renesas_sdhi_quirks sdhi_quirks_nohs400 = {
> + .hs400_disabled = true,
> +};
> +
> static const struct soc_device_attribute sdhi_quirks_match[] = {
> { .soc_id = "r8a7795", .revision = "ES1.*", .data = &sdhi_quirks_h3_m3w_es1 },
> { .soc_id = "r8a7795", .revision = "ES2.0", .data = &sdhi_quirks_h3_es2 },
> - { .soc_id = "r8a7796", .revision = "ES1.0", .data = &sdhi_quirks_h3_m3w_es1 },
> - { .soc_id = "r8a7796", .revision = "ES1.1", .data = &sdhi_quirks_h3_m3w_es1 },
> + { .soc_id = "r8a7796", .revision = "ES1.[012]", .data = &sdhi_quirks_h3_m3w_es1 },
> + { .soc_id = "r8a774a1", .revision = "ES1.[012]", .data = &sdhi_quirks_h3_m3w_es1 },
> + { .soc_id = "r8a77980", .data = &sdhi_quirks_nohs400 },
> { /* Sentinel. */ },
> };
>
> --
> 2.11.0
