From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
This patch adds support to external pcie refclk.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
arch/arm/boot/dts/qcom-apq8064-db600c.dts | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/arm/boot/dts/qcom-apq8064-db600c.dts b/arch/arm/boot/dts/qcom-apq8064-db600c.dts
index 50151ef6e912..7587088c122f 100644
--- a/arch/arm/boot/dts/qcom-apq8064-db600c.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-db600c.dts
@@ -45,6 +45,18 @@
};
+ clocks {
+ compatible = "simple-bus";
+ pcie_refclk: pcie-refclk {
+ pinctrl-0 = <&pcie_pins>;
+ pinctrl-names = "default";
+ compatible = "gpio-gate-clock";
+ clocks = <&rpmcc 27>;
+ #clock-cells = <0>;
+ enable-gpios = <&pm8921_gpio 22 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
hdmi-out {
compatible = "hdmi-connector";
type = "a";
@@ -140,6 +152,16 @@
qcom,ssbi@500000 {
pmic@0 {
+ gpio@150 {
+ pcie_pins: pcie_pins {
+ pios {
+ pins = "gpio22";
+ function = "normal";
+ power-source = <PM8921_GPIO_VPH>;
+ };
+ };
+ };
+
mpps@50 {
pcie_perst: pcie-perst {
pinconf {
@@ -439,6 +461,11 @@
pinctrl-0 = <&pcie_perst>;
pinctrl-names = "default";
perst-gpio = <&pm8921_mpps 1 GPIO_ACTIVE_LOW>;
+ clocks = <&gcc PCIE_A_CLK>,
+ <&gcc PCIE_H_CLK>,
+ <&gcc PCIE_PHY_REF_CLK>,
+ <&pcie_refclk>;
+ clock-names = "core", "iface", "phy", "ref";
};
/* OTG */
--
2.16.2
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