[U-Boot] [PATCH] mmd: sdhci: fix non GPIO card detect

[Peng Fan]

+ Faiz

> Subject: [PATCH] mmd: sdhci: fix non GPIO card detect
> 
> Some SD cards do not assert the SDHCI_CARD_PRESENT bit. Only the
> SDHCI_CARD_DETECT_PIN_LEVEL is enabled. Consider that enough for card
> detect indication.
> 
> This fixes SD card access from SPL, since DM_GPIO is not available in SPL
> code.
> 
> Fixes: da18c62b6e6a ("mmc: sdhci: Implement SDHCI card detect")
> Cc: T Karthik Reddy <t.karthik.reddy at xilinx.com>
> Cc: Michal Simek <michal.simek at xilinx.com>
> Signed-off-by: Baruch Siach <baruch at tkos.co.il>
> ---
>  drivers/mmc/sdhci.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index
> 2779bca93f08..17a28181fcca 100644
> --- a/drivers/mmc/sdhci.c
> +++ b/drivers/mmc/sdhci.c
> @@ -683,7 +683,7 @@ int sdhci_get_cd(struct udevice *dev)
>  	}
>  #endif
>  	value = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) &
> -		   SDHCI_CARD_PRESENT);
> +		   (SDHCI_CARD_PRESENT | SDHCI_CARD_DETECT_PIN_LEVEL));

Faiz, are you fine with this change?

Thanks,
Peng.


>  	if (mmc->cfg->host_caps & MMC_CAP_CD_ACTIVE_HIGH)
>  		return !value;
>  	else
> --
> 2.20.1