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mmc: mxs-mmc: add non-removable property 

Some boards have non removable cards like eMMC. Handle such case.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Marc Kleine-Budde 2013-04-10 11:13:44 +02:00 committed by Chris Ball
parent 4c0c9be050
commit 5086e5f41f
1 changed files with 7 additions and 3 deletions
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10
drivers/mmc/host/mxs-mmc.c
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@ -73,6 +73,7 @@ struct mxs_mmc_host {
int wp_gpio;
bool wp_inverted;
bool cd_inverted;
bool non_removable;
};
static int mxs_mmc_get_ro(struct mmc_host *mmc)
@ -96,8 +97,9 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
struct mxs_mmc_host *host = mmc_priv(mmc);
struct mxs_ssp *ssp = &host->ssp;
return !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
BM_SSP_STATUS_CARD_DETECT)) ^ host->cd_inverted;
return host->non_removable ||
!(readl(ssp->base + HW_SSP_STATUS(ssp)) &
BM_SSP_STATUS_CARD_DETECT) ^ host->cd_inverted;
}
static void mxs_mmc_reset(struct mxs_mmc_host *host)
@ -687,8 +689,10 @@ static int mxs_mmc_probe(struct platform_device *pdev)
mmc->caps |= MMC_CAP_4_BIT_DATA;
else if (bus_width == 8)
mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
host->non_removable = of_property_read_bool(np, "non-removable");
if (host->non_removable)
mmc->caps |= MMC_CAP_NONREMOVABLE;
host->wp_gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags);
if (flags & OF_GPIO_ACTIVE_LOW)
host->wp_inverted = 1;