[MMC] sdhci: proper timeout handling

Use the give timeout clock and calculate a proper timeout instead of using the
maximum at all times.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/mmc/sdhci.h b/drivers/mmc/sdhci.h
index aed4abd37bfd..a8f45215ef3a 100644
--- a/drivers/mmc/sdhci.h
+++ b/drivers/mmc/sdhci.h
@@ -125,6 +125,9 @@
 /* 3E-3F reserved */
 
 #define SDHCI_CAPABILITIES      0x40
+#define  SDHCI_TIMEOUT_CLK_MASK 0x0000003F
+#define  SDHCI_TIMEOUT_CLK_SHIFT 0
+#define  SDHCI_TIMEOUT_CLK_UNIT 0x00000080
 #define  SDHCI_CLOCK_BASE_MASK  0x00003F00
 #define  SDHCI_CLOCK_BASE_SHIFT 8
 #define  SDHCI_CAN_DO_DMA       0x00400000
@@ -156,6 +159,7 @@ struct sdhci_host {
 #define SDHCI_USE_DMA           (1<<0)
 
         unsigned int            max_clk;        /* Max possible freq (MHz) */
+        unsigned int            timeout_clk;    /* Timeout freq (KHz) */
 
         unsigned int            clock;          /* Current clock (MHz) */
         unsigned short          power;          /* Current voltage */