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authorMarc Kleine-Budde <mkl@pengutronix.de>2013-04-10 11:13:44 +0200
committerChris Ball <cjb@laptop.org>2013-04-12 14:17:46 -0400
commit5086e5f41fd107539911edf62f2d202753ed1980 (patch)
treec1fc4ce54584d57390316412d7402bb2d9729c0d /drivers/mmc/host
parent4c0c9be05004d1eb674b7586216b3d93cc04531c (diff)
downloadvexpress-lsk-5086e5f41fd107539911edf62f2d202753ed1980.tar.gz
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>
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r--drivers/mmc/host/mxs-mmc.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 0cdf1f6f3f4..c2318812931 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -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;