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authorNicolas Ferre <nicolas.ferre@atmel.com>2010-12-10 19:14:32 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2011-01-07 13:58:41 -0800
commit3582ab36ca47895d5fa41d341969bf0d3d12a879 (patch)
treedabb131de20afc7cf0c4f5306b0d869c9ca00c02
parent4be61e8c34498beb3364de68e16ca779b9ed609f (diff)
mmc: atmel-mci: fix multiblock SDIO transfers
commit 2f1d791882d21a4002a719fb016a1ac21c8bd6b7 upstream. Based on report made by Yauhen in: "MMC: Fix multiblock SDIO transfers in AT91 MCI" patch, I report those changes to the brother driver: atmel-mci. So, this patch sets SDIO transfer types: SDIO block and SDIO byte transfers instead of using ordinary MMC block transfers. It is checking opcode for SDIO CMD53 and setting transfer type in MCI_CMDR register properly. Reported-by: Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Chris Ball <cjb@laptop.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/mmc/host/atmel-mci.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 95ef864ad8f9..3a569bfe3886 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -26,6 +26,7 @@
#include <linux/stat.h>
#include <linux/mmc/host.h>
+#include <linux/mmc/sdio.h>
#include <mach/atmel-mci.h>
#include <linux/atmel-mci.h>
@@ -532,12 +533,17 @@ static u32 atmci_prepare_command(struct mmc_host *mmc,
data = cmd->data;
if (data) {
cmdr |= MCI_CMDR_START_XFER;
- if (data->flags & MMC_DATA_STREAM)
- cmdr |= MCI_CMDR_STREAM;
- else if (data->blocks > 1)
- cmdr |= MCI_CMDR_MULTI_BLOCK;
- else
- cmdr |= MCI_CMDR_BLOCK;
+
+ if (cmd->opcode == SD_IO_RW_EXTENDED) {
+ cmdr |= MCI_CMDR_SDIO_BLOCK;
+ } else {
+ if (data->flags & MMC_DATA_STREAM)
+ cmdr |= MCI_CMDR_STREAM;
+ else if (data->blocks > 1)
+ cmdr |= MCI_CMDR_MULTI_BLOCK;
+ else
+ cmdr |= MCI_CMDR_BLOCK;
+ }
if (data->flags & MMC_DATA_READ)
cmdr |= MCI_CMDR_TRDIR_READ;