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Commit a215186d authored by Haibo Chen's avatar Haibo Chen Committed by Ulf Hansson
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mmc: sdhci-esdhc-imx: do not touch other bit when config DTOCV 



Now, when call esdhc_set_timeout() to set the data timeout counter value,
IPP_RST_N(bit 23) is wrongly affected. This patch add a mask to avoid this.

Signed-off-by: default avatarHaibo Chen <haibo.chen@nxp.com>
Acked-by: default avatarDong Aisheng <aisheng.dong@nxp.com>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 4ad90cf9

drivers/mmc/host/sdhci-esdhc-imx.c

+3 −1
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#include "sdhci-pltfm.h"

#include "sdhci-esdhc.h"



#define ESDHC_SYS_CTRL_DTOCV_MASK	0x0f

#define	ESDHC_CTRL_D3CD			0x08

#define ESDHC_BURST_LEN_EN_INCR		(1 << 27)

/* VENDOR SPEC register */
@@ -937,7 +938,8 @@ static void esdhc_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) 
	struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);



	/* use maximum timeout counter */

	sdhci_writeb(host, esdhc_is_usdhc(imx_data) ? 0xF : 0xE,

	esdhc_clrset_le(host, ESDHC_SYS_CTRL_DTOCV_MASK,

			esdhc_is_usdhc(imx_data) ? 0xF : 0xE,

			SDHCI_TIMEOUT_CONTROL);

}