From: Ben Dooks <[email protected]>
The s3cmci driver is calling s3c2410_dma_config with incorrect data
for the DCON register. The S3C2410_DCON_HWTRIG is implicit in the
channel configuration and the device selection of S3C2410_DCON_CH0_SDI
is incorrect as the DMA system may not select channel 0.
Signed-off-by: Ben Dooks <[email protected]>
Index: linux.git/drivers/mmc/host/s3cmci.c
===================================================================
--- linux.git.orig/drivers/mmc/host/s3cmci.c 2009-01-20 09:07:50.000000000 +0000
+++ linux.git/drivers/mmc/host/s3cmci.c 2009-01-20 09:08:11.000000000 +0000
@@ -793,8 +793,7 @@ static void s3cmci_dma_setup(struct s3cm
host->mem->start + host->sdidata);
if (!setup_ok) {
- s3c2410_dma_config(host->dma, 4,
- (S3C2410_DCON_HWTRIG | S3C2410_DCON_CH0_SDI));
+ s3c2410_dma_config(host->dma, 4, 0);
s3c2410_dma_set_buffdone_fn(host->dma,
s3cmci_dma_done_callback);
s3c2410_dma_setflags(host->dma, S3C2410_DMAF_AUTOSTART);
--
Ben ([email protected], http://www.fluff.org/)
'a smiley only costs 4 bytes'