diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-of.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-of.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-of.c b/drivers/mmc/host/sdhci-of.c index 56041dc74ce..c8dab07e34b 100644 --- a/drivers/mmc/host/sdhci-of.c +++ b/drivers/mmc/host/sdhci-of.c @@ -21,6 +21,7 @@ #include <linux/of.h> #include <linux/of_platform.h> #include <linux/mmc/host.h> +#include <asm/machdep.h> #include "sdhci.h" struct sdhci_of_data { @@ -175,7 +176,6 @@ static unsigned int esdhc_get_min_clock(struct sdhci_host *host) static struct sdhci_of_data sdhci_esdhc = { .quirks = SDHCI_QUIRK_FORCE_BLK_SZ_2048 | SDHCI_QUIRK_BROKEN_CARD_DETECTION | - SDHCI_QUIRK_INVERTED_WRITE_PROTECT | SDHCI_QUIRK_NO_BUSY_IRQ | SDHCI_QUIRK_NONSTANDARD_CLOCK | SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | @@ -219,6 +219,15 @@ static int sdhci_of_resume(struct of_device *ofdev) #endif +static bool __devinit sdhci_of_wp_inverted(struct device_node *np) +{ + if (of_get_property(np, "sdhci,wp-inverted", NULL)) + return true; + + /* Old device trees don't have the wp-inverted property. */ + return machine_is(mpc837x_rdb) || machine_is(mpc837x_mds); +} + static int __devinit sdhci_of_probe(struct of_device *ofdev, const struct of_device_id *match) { @@ -261,6 +270,9 @@ static int __devinit sdhci_of_probe(struct of_device *ofdev, if (of_get_property(np, "sdhci,1-bit-only", NULL)) host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA; + if (sdhci_of_wp_inverted(np)) + host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT; + clk = of_get_property(np, "clock-frequency", &size); if (clk && size == sizeof(*clk) && *clk) of_host->clock = *clk; |