commit: 2f1d791882d21a4002a719fb016a1ac21c8bd6b7 From: Nicolas Ferre <[email protected]> Date: Fri, 10 Dec 2010 19:14:32 +0100 Subject: [PATCH] mmc: atmel-mci: fix multiblock SDIO transfers
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 <[email protected]> Cc: <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]> Signed-off-by: Chris Ball <[email protected]> --- 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 301351a..ad2a7a0 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; _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
