mmc: sh_mmcif: force to fail CMD52 immediately
authorTeppei Kamijou <teppei.kamijou.yb@renesas.com>
Wed, 12 Dec 2012 14:38:05 +0000 (15:38 +0100)
committerChris Ball <cjb@laptop.org>
Mon, 11 Feb 2013 17:51:24 +0000 (12:51 -0500)
mmc_rescan() sends CMD52 (SD_IO_RW_DIRECT) to reset SDIO card during
card detection. CMD52 should be ignored by SD/eMMC cards, but we can
also abort it in the driver immediately, since MMCIF doesn't support
SDIO cards anyway.

Signed-off-by: Teppei Kamijou <teppei.kamijou.yb@renesas.com>
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/host/sh_mmcif.c

index 741aeb9..8b4e98e 100644 (file)
@@ -911,6 +911,7 @@ static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq)
                if ((mrq->cmd->flags & MMC_CMD_MASK) != MMC_CMD_BCR)
                        break;
        case MMC_APP_CMD:
+       case SD_IO_RW_DIRECT:
                host->state = STATE_IDLE;
                mrq->cmd->error = -ETIMEDOUT;
                mmc_request_done(mmc, mrq);