luck/tmp_suning_uos_patched
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Merge branch 'fixes' into next

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This commit is contained in:
Ulf Hansson 2018-01-15 13:53:10 +01:00
commit 7ad43a1498
1 changed files with 14 additions and 0 deletions
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14
drivers/mmc/host/sdhci-esdhc-imx.c
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@ -688,6 +688,20 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
return;
}
/* For i.MX53 eSDHCv3, SYSCTL.SDCLKFS may not be set to 0. */
if (is_imx53_esdhc(imx_data)) {
/*
* According to the i.MX53 reference manual, if DLLCTRL[10] can
* be set, then the controller is eSDHCv3, else it is eSDHCv2.
*/
val = readl(host->ioaddr + ESDHC_DLL_CTRL);
writel(val | BIT(10), host->ioaddr + ESDHC_DLL_CTRL);
temp = readl(host->ioaddr + ESDHC_DLL_CTRL);
writel(val, host->ioaddr + ESDHC_DLL_CTRL);
if (temp & BIT(10))
pre_div = 2;
}
temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
| ESDHC_CLOCK_MASK);