diff options
| author | Kunihiko Hayashi <hayashi.kunihiko@socionext.com> | 2022-11-11 11:10:32 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2022-12-07 15:22:36 +0300 |
| commit | e2d2dcc82504b1beee9f2542e8b43b8c43829302 (patch) | |
| tree | 423f55dbbd427e34a418e324c20732543b3918e8 /drivers/mmc | |
| parent | 5914a9b16c842056c946665a39aa0ac5923a2d1f (diff) | |
| download | linux-e2d2dcc82504b1beee9f2542e8b43b8c43829302.tar.xz | |
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: 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>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci_f_sdh30.c | 7 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci_f_sdh30.h | 3 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c index 556f4601643d..afbe17312cb6 100644 --- a/drivers/mmc/host/sdhci_f_sdh30.c +++ b/drivers/mmc/host/sdhci_f_sdh30.c @@ -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 = { diff --git a/drivers/mmc/host/sdhci_f_sdh30.h b/drivers/mmc/host/sdhci_f_sdh30.h index fc1ad28f7ca9..7c3c66291d42 100644 --- a/drivers/mmc/host/sdhci_f_sdh30.h +++ b/drivers/mmc/host/sdhci_f_sdh30.h @@ -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 |