forked from Minki/linux
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: Haibo Chen <haibo.chen@nxp.com> Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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@ -31,6 +31,7 @@
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#include "sdhci-pltfm.h"
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#include "sdhci-esdhc.h"
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#define ESDHC_SYS_CTRL_DTOCV_MASK 0x0f
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#define ESDHC_CTRL_D3CD 0x08
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#define ESDHC_BURST_LEN_EN_INCR (1 << 27)
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/* VENDOR SPEC register */
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@ -937,7 +938,8 @@ static void esdhc_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)
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struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
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/* use maximum timeout counter */
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sdhci_writeb(host, esdhc_is_usdhc(imx_data) ? 0xF : 0xE,
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esdhc_clrset_le(host, ESDHC_SYS_CTRL_DTOCV_MASK,
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esdhc_is_usdhc(imx_data) ? 0xF : 0xE,
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SDHCI_TIMEOUT_CONTROL);
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}
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