From: Sascha Hauer Date: Fri, 17 Feb 2012 10:51:49 +0000 (+0100) Subject: mmc: sdhci-esdhc-imx: fix for mmc cards on i.MX5 X-Git-Tag: firefly_0821_release~3680^2~3434^2~2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5b6b0ad6e572b32a641116aaa5f897ffebe31e44;p=firefly-linux-kernel-4.4.55.git mmc: sdhci-esdhc-imx: fix for mmc cards on i.MX5 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 Acked-by: Shawn Guo Cc: Signed-off-by: Chris Ball --- diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index d601e41af282..0be4e2013632 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -269,8 +269,9 @@ 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; if (is_imx6q_usdhc(imx_data)) {