[PATCH 02/12] arm64: dts: qcom: qcs6490-radxa-dragon-q6a: Enable UFS controller

[Xilin Wu]

Add and enable UFS related nodes for this board.

Note that UFS Gear-4 Rate-B is unstable due to board and UFS module design
limitations. UFS on this board is stable when working at Gear-4 Rate-A.

Signed-off-by: Xilin Wu <sophon@xxxxxxxxx>
---
 .../boot/dts/qcom/qcs6490-radxa-dragon-q6a.dts     | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-radxa-dragon-q6a.dts b/arch/arm64/boot/dts/qcom/qcs6490-radxa-dragon-q6a.dts
index bb5a42b038f1..c961d3ec625f 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-radxa-dragon-q6a.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-radxa-dragon-q6a.dts
@@ -959,6 +959,29 @@ &uart5 {
 	status = "okay";
 };
 
+&ufs_mem_hc {
+	reset-gpios = <&tlmm 175 GPIO_ACTIVE_LOW>;
+	vcc-supply = <&vreg_l7b_2p96>;
+	vcc-max-microamp = <800000>;
+	vccq-supply = <&vreg_l9b_1p2>;
+	vccq-max-microamp = <900000>;
+	vccq2-supply = <&vreg_l9b_1p2>;
+	vccq2-max-microamp = <1300000>;
+
+	/* Gear-4 Rate-B is unstable due to board */
+	/* and UFS module design limitations */
+	limit-gear-rate = "rate-a";
+
+	status = "okay";
+};
+
+&ufs_mem_phy {
+	vdda-phy-supply = <&vreg_l10c_0p88>;
+	vdda-pll-supply = <&vreg_l6b_1p2>;
+
+	status = "okay";
+};
+
 &usb_2 {
 	dr_mode = "host";
 

-- 
2.53.0