From 91532fc9a1441d3d3890506bc11181dcfc61af2e Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Thu, 27 Sep 2018 15:05:54 +0200 Subject: 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 Acked-by: Marcel Ziswiler --- arch/arm/boot/dts/imx7-colibri.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi index 9cbfde7bd843..c9e50f1149d4 100644 --- a/arch/arm/boot/dts/imx7-colibri.dtsi +++ b/arch/arm/boot/dts/imx7-colibri.dtsi @@ -353,6 +353,7 @@ assigned-clock-rates = <400000000>; bus-width = <8>; non-removable; + sdhci-caps-mask = <0x80000000 0x0>; }; &iomuxc { -- cgit v1.2.3