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

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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: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
Link: https://lore.kernel.org/r/20221111081033.3813-6-hayashi.kunihiko@socionext.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Kunihiko Hayashi 2022-11-11 17:10:32 +09:00 committed by Ulf Hansson
parent 5914a9b16c
commit e2d2dcc825
2 changed files with 10 additions and 0 deletions
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7
drivers/mmc/host/sdhci_f_sdh30.c
View File

@ -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 = {

3
drivers/mmc/host/sdhci_f_sdh30.h
View File

@ -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