[PATCH 1/3] mmc: atmel-mci: correct data timeout computation
ludovic.desroches at atmel.com
ludovic.desroches at atmel.com
Wed Mar 21 11:41:21 EDT 2012
From: Ludovic Desroches <ludovic.desroches at atmel.com>
The HSMCI operates at a rate of up to Master Clock divided by two.
Signed-off-by: Ludovic Desroches <ludovic.desroches at atmel.com>
---
drivers/mmc/host/atmel-mci.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index e4449a5..e161452 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -480,7 +480,7 @@ err:
static inline unsigned int atmci_ns_to_clocks(struct atmel_mci *host,
unsigned int ns)
{
- return (ns * (host->bus_hz / 1000000) + 999) / 1000;
+ return (ns * ((host->bus_hz/2) / 1000000) + 999) / 1000;
}
static void atmci_set_timeout(struct atmel_mci *host,
--
1.7.5.4
More information about the linux-arm-kernel
mailing list