From: Madhusudhan Chikkature<madhu.cr@xxxxxx>
ARM: OMAP3: HSMMC fix for core ret.
The core ret seem to be prevented by HSMMC CTO errors. This patch provides a
fix for the same.
Signed-off-by: Madhusudhan Chikkature<madhu.cr@xxxxxx>
---
drivers/mmc/host/omap_hsmmc.c | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
Index: linux-omap-ti.git-07142008/drivers/mmc/host/omap_hsmmc.c
===================================================================
--- linux-omap-ti.git-07142008.orig/drivers/mmc/host/omap_hsmmc.c 2008-07-10
14:59:37.000000000 +0530
+++ linux-omap-ti.git-07142008/drivers/mmc/host/omap_hsmmc.c 2008-07-17
15:08:29.000000000 +0530
@@ -84,6 +84,7 @@
#define STAT_CLEAR 0xFFFFFFFF
#define INIT_STREAM_CMD 0x00000000
#define DUAL_VOLT_OCR_BIT 7
+#define SRC (1 << 25)
#define OMAP_MMC1_DEVID 1
#define OMAP_MMC2_DEVID 2
@@ -315,10 +316,16 @@ static irqreturn_t mmc_omap_irq(int irq,
if ((status & CMD_TIMEOUT) ||
(status & CMD_CRC)) {
if (host->cmd) {
- if (status & CMD_TIMEOUT)
+ if (status & CMD_TIMEOUT) {
+ OMAP_HSMMC_WRITE(host->base, SYSCTL,
+ OMAP_HSMMC_READ(host->base,
+ SYSCTL) | SRC);
+ while (OMAP_HSMMC_READ(host->base,
+ SYSCTL) & SRC) ;
host->cmd->error = -ETIMEDOUT;
- else
+ } else {
host->cmd->error = -EILSEQ;
+ }
end_cmd = 1;
}
if (host->data)
--
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