Hi,
čt 23. 7. 2020 v 6:12 odesílatel Faiz Abbas <faiz_ab...@ti.com> napsal:
>
> The capabilities register has a field to indicate whether the host
> supports high speed mode or not. Add high speed host_caps based on
> this bit instead of enabling it by default.
>
> Signed-off-by: Faiz Abbas <faiz_ab...@ti.com>
> ---
> drivers/mmc/sdhci.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
> index 16989dcf05..48d639fe93 100644
> --- a/drivers/mmc/sdhci.c
> +++ b/drivers/mmc/sdhci.c
> @@ -866,7 +866,10 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct
> sdhci_host *host,
> if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
> cfg->voltages |= host->voltages;
>
> - cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT;
> + if (caps & SDHCI_CAN_DO_HISPD)
> + cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz;
> +
> + cfg->host_caps |= MMC_MODE_4BIT;
>
> /* Since Host Controller Version3.0 */
> if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
> --
> 2.17.1
>
Reviewed-by: Michal Simek <michal.si...@xilnx.com>
Tested-by: Michal Simek <michal.si...@xilnx.com> (zcu104 with
sdhci-caps-mask = <0 0x200000>;)
Thanks,
Michal
--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
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