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-rw-r--r--drivers/mmc/host/sdhci-esdhc-imx.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index ac2c83a..bbb0bd4 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -853,6 +853,11 @@ static void esdhc_set_strobe_dll(struct sdhci_host *host)
u32 v;
if (host->mmc->actual_clock > ESDHC_STROBE_DLL_CLK_FREQ) {
+ /* disable clock before enabling strobe dll */
+ writel(readl(host->ioaddr + ESDHC_VENDOR_SPEC) &
+ ~ESDHC_VENDOR_SPEC_FRC_SDCLK_ON,
+ host->ioaddr + ESDHC_VENDOR_SPEC);
+
/* force a reset on strobe dll */
writel(ESDHC_STROBE_DLL_CTRL_RESET,
host->ioaddr + ESDHC_STROBE_DLL_CTRL);
@@ -914,6 +919,8 @@ static void esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned timing)
m |= ESDHC_MIX_CTRL_DDREN | ESDHC_MIX_CTRL_HS400_EN;
writel(m, host->ioaddr + ESDHC_MIX_CTRL);
imx_data->is_ddr = 1;
+ /* update clock after enable DDR for strobe DLL lock */
+ host->ops->set_clock(host, host->clock);
esdhc_set_strobe_dll(host);
break;
}