mmc: sdhci-esdhc-imx: fix for mmc cards on i.MX5

commit 5b6b0ad6e572b32a641116aaa5f897ffebe31e44 upstream.

On i.MX53 we have to write a special SDHCI_CMD_ABORTCMD to the
SDHCI_TRANSFER_MODE register during a MMC_STOP_TRANSMISSION
command. This works for SD cards. However, with MMC cards
the MMC_SET_BLOCK_COUNT command is used instead, but this
needs the same handling. Fix MMC cards by testing for the
MMC_SET_BLOCK_COUNT command aswell. Tested on a custom i.MX53
board with a Transcend MMC+ card and eMMC.

The kernel started used MMC_SET_BLOCK_COUNT in 3.0, so this
is a regression for these boards introduced in 3.0; it should
go to 3.0/3.1/3.2-stable.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index ba31abee948..92e54370183 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -139,8 +139,9 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
                 imx_data->scratchpad = val;
                 return;
         case SDHCI_COMMAND:
-                if ((host->cmd->opcode == MMC_STOP_TRANSMISSION)
-                        && (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT))
+                if ((host->cmd->opcode == MMC_STOP_TRANSMISSION ||
+                     host->cmd->opcode == MMC_SET_BLOCK_COUNT) &&
+                    (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT))
                         val |= SDHCI_CMD_ABORTCMD;
                 writel(val << 16 | imx_data->scratchpad,
                         host->ioaddr + SDHCI_TRANSFER_MODE);