lkml.org 
[lkml]   [2018]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] ARM: dts: db600c: add support to pcie refclk
Date
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

This patch adds support to external pcie refclk.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
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
\
 
 \ /
  Last update: 2018-03-20 10:32    [W:0.174 / U:1.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site