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authorJuha Yrjola <juha.yrjola@solidboot.com>2008-03-26 16:09:16 -0400
committerPierre Ossman <drzeus@drzeus.cx>2008-04-18 20:05:29 +0200
commitb8f9f0e90a6c3fb999d00301f45bb2213dbe8c00 (patch)
tree1b267da4641dc1bd000491601d198fe85bca677b
parenta914ded23565d8688e2b7e435916630def5bdd19 (diff)
downloadop-kernel-dev-b8f9f0e90a6c3fb999d00301f45bb2213dbe8c00.zip
op-kernel-dev-b8f9f0e90a6c3fb999d00301f45bb2213dbe8c00.tar.gz
MMC: OMAP: Fix timeout calculation for MMC multislot support
Fix the data timeout calculation for MMC multislot support. Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com> Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
-rw-r--r--drivers/mmc/host/omap.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 90e9d68..0d3cd3c 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -861,13 +861,12 @@ static inline void set_cmd_timeout(struct mmc_omap_host *host, struct mmc_reques
static inline void set_data_timeout(struct mmc_omap_host *host, struct mmc_request *req)
{
- int timeout;
+ unsigned int timeout, cycle_ns;
u16 reg;
- /* Convert ns to clock cycles by assuming 20MHz frequency
- * 1 cycle at 20MHz = 500 ns
- */
- timeout = req->data->timeout_clks + req->data->timeout_ns / 500;
+ cycle_ns = 1000000000 / host->current_slot->fclk_freq;
+ timeout = req->data->timeout_ns / cycle_ns;
+ timeout += req->data->timeout_clks;
/* Check if we need to use timeout multiplier register */
reg = OMAP_MMC_READ(host, SDIO);
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