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Commit 92ff0c5b authored by Teppei Kamijou's avatar Teppei Kamijou Committed by Chris Ball
Browse files

mmc: sh_mmcif: force to fail CMD52 immediately 



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: default avatarTeppei Kamijou <teppei.kamijou.yb@renesas.com>
Signed-off-by: default avatarShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent fbe5fdd1

drivers/mmc/host/sh_mmcif.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -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)

		if ((mrq->cmd->flags & MMC_CMD_MASK) != MMC_CMD_BCR)

			break;

			break;

	case MMC_APP_CMD:

	case MMC_APP_CMD:

	case SD_IO_RW_DIRECT:

		host->state = STATE_IDLE;

		host->state = STATE_IDLE;

		mrq->cmd->error = -ETIMEDOUT;

		mrq->cmd->error = -ETIMEDOUT;

		mmc_request_done(mmc, mrq);

		mmc_request_done(mmc, mrq);