diff options
| author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2010-12-10 19:14:32 +0100 |
|---|---|---|
| committer | AK <andi@firstfloor.org> | 2011-02-06 11:03:47 -0800 |
| commit | 3fa84c1cbf8baca625f08f475338193ee9be1eea (patch) | |
| tree | 7b958ac05d72fea6f19ba05915b360083873faa5 | |
| parent | 84da397234ceec8449444598d8d72668d7f5bb8c (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>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
| -rw-r--r-- | drivers/mmc/host/atmel-mci.c | 18 |
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; |