From 81b39802468fe4bf5c6b038837319b608acfdd3e Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 22 Sep 2009 16:45:13 -0700 Subject: sdhci-of: fix high-speed cards recognition eSDHC fails to recognize some SDHS cards, throwing timeout errors: mmc0: error -110 whilst initialising SD card That's because we calculate timeout value in a wrong way: on eSDHC hosts the timeout clock is derivied from the SD clock, which is set dynamically. As David Vrabel suggested, deriving timeout clock from SD clock is a common scheme, so let's implement DATA_TIMEOUT_USES_SDCLK quirk and use it for eSDHC hosts. Also, from now on we don't need esdhc_get_timeout_clock() callback, so remove it. Signed-off-by: Anton Vorontsov Cc: Pierre Ossman Cc: Kumar Gala Cc: David Vrabel Cc: Ben Dooks Cc: Sascha Hauer Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/mmc/host/sdhci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/mmc/host/sdhci.h') diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index c77e9ff30223..afda7f126e0d 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -232,6 +232,8 @@ struct sdhci_host { #define SDHCI_QUIRK_FORCE_1_BIT_DATA (1<<22) /* Controller needs 10ms delay between applying power and clock */ #define SDHCI_QUIRK_DELAY_AFTER_POWER (1<<23) +/* Controller uses SDCLK instead of TMCLK for data timeouts */ +#define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK (1<<24) int irq; /* Device IRQ */ void __iomem * ioaddr; /* Mapped address */ -- cgit v1.2.3