Commit e2d2dcc8 authored by Kunihiko Hayashi's avatar Kunihiko Hayashi Committed by Ulf Hansson
Browse files

mmc: f-sdh30: Add support for non-removable media 



To use F_SDH30 for non-removable meda like eMMC,
need to enable FORCE_CARD_INSERT bit to skip the delay for detection.

Signed-off-by: default avatarKunihiko Hayashi <hayashi.kunihiko@socionext.com>
Acked-by: default avatarJassi Brar <jaswinder.singh@linaro.org>
Link: https://lore.kernel.org/r/20221111081033.3813-6-hayashi.kunihiko@socionext.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 5914a9b1

drivers/mmc/host/sdhci_f_sdh30.c

+7 −0
Original line number Diff line number Diff line
@@ -77,6 +77,13 @@ static void sdhci_f_sdh30_reset(struct sdhci_host *host, u8 mask) 
		ctl |= F_SDH30_CMD_DAT_DELAY;

		sdhci_writel(host, ctl, F_SDH30_ESD_CONTROL);

	}



	if ((host->mmc->caps & MMC_CAP_NONREMOVABLE) &&

	    !(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {

		ctl = sdhci_readl(host, F_SDH30_TEST);

		ctl |= F_SDH30_FORCE_CARD_INSERT;

		sdhci_writel(host, ctl, F_SDH30_TEST);

	}

}



static const struct sdhci_ops sdhci_f_sdh30_ops = {

drivers/mmc/host/sdhci_f_sdh30.h

+3 −0
Original line number Diff line number Diff line
@@ -29,4 +29,7 @@ 
#define  F_SDH30_CMD_DAT_DELAY	BIT(9)

#define	 F_SDH30_EMMC_HS200		BIT(24)



#define F_SDH30_TEST		0x158

#define F_SDH30_FORCE_CARD_INSERT	BIT(6)



#define F_SDH30_MIN_CLOCK		400000