arm64: dts: imx8-ss-conn: add fsl,tuning-step for usdhc1 and usdhc2

Add fsl,tuning-step for usdhc1 and usdhc2 to improve card compatibility.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
index 0b8b32f6976813515bc8d9dce5486074d0ec8b7e..f99b9ce5f6540a1219fa25646208b4d61ec69efc 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-conn.dtsi
@@ -80,6 +80,8 @@ conn_subsys: bus@5b000000 {
                assigned-clocks = <&clk IMX_SC_R_SDHC_0 IMX_SC_PM_CLK_PER>;
                assigned-clock-rates = <400000000>;
                power-domains = <&pd IMX_SC_R_SDHC_0>;
+               fsl,tuning-start-tap = <20>;
+               fsl,tuning-step = <2>;
                status = "disabled";
        };
 
@@ -108,6 +110,8 @@ conn_subsys: bus@5b000000 {
                assigned-clocks = <&clk IMX_SC_R_SDHC_2 IMX_SC_PM_CLK_PER>;
                assigned-clock-rates = <200000000>;
                power-domains = <&pd IMX_SC_R_SDHC_2>;
+               fsl,tuning-start-tap = <20>;
+               fsl,tuning-step = <2>;
                status = "disabled";
        };