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mmc: sdhci-of-esdhc: use 1/2 periperhal clock for ls1028a 

LS1028A used 1/2 periperhal clock as one reference clock.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Yangbo Lu 2019-06-14 16:29:54 +08:00 committed by Ulf Hansson
parent 04509d7709
commit 791463ba1a
1 changed files with 5 additions and 4 deletions
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9
drivers/mmc/host/sdhci-of-esdhc.c
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@ -1048,11 +1048,12 @@ static void esdhc_init(struct platform_device *pdev, struct sdhci_host *host)
/*
* esdhc->peripheral_clock would be assigned with a value
* which is eSDHC base clock when use periperal clock.
* For ls1046a, the clock value got by common clk API is
* peripheral clock while the eSDHC base clock is 1/2
* peripheral clock.
* For some platforms, the clock value got by common clk
* API is peripheral clock while the eSDHC base clock is
* 1/2 peripheral clock.
*/
if (of_device_is_compatible(np, "fsl,ls1046a-esdhc"))
if (of_device_is_compatible(np, "fsl,ls1046a-esdhc") ||
of_device_is_compatible(np, "fsl,ls1028a-esdhc"))
esdhc->peripheral_clock = clk_get_rate(clk) / 2;
else
esdhc->peripheral_clock = clk_get_rate(clk);