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ARM: dts: imx7-colibri: disable HS400 

Force HS200 by masking bit 63 of the SDHCI capability register.
The i.MX ESDHC driver uses SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400. With
that the stack checks bit 63 to descide whether HS400 is available.
Using sdhci-caps-mask allows to mask bit 63. The stack then selects
HS200 as operating mode.

This prevents rare communication errors with minimal effect on
performance:
	sdhci-esdhc-imx 30b60000.usdhc: warning! HS400 strobe DLL
		status REF not lock!

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Stefan Agner 2019-08-12 14:21:17 +00:00 committed by Shawn Guo
parent 037ab580f0
commit a95fbda08e
1 changed files with 1 additions and 0 deletions
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1
arch/arm/boot/dts/imx7-colibri.dtsi
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@ -321,6 +321,7 @@ &usdhc3 {
vmmc-supply = <&reg_module_3v3>;
vqmmc-supply = <&reg_DCDC3>;
non-removable;
sdhci-caps-mask = <0x80000000 0x0>;
};
&iomuxc {