arm64: dts: rockchip: Add PCIe for RockPI N10

This patch adds support to enable PCIe for RockPI N10.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

diff --git a/arch/arm/dts/rk3399pro-vmarc-som.dtsi b/arch/arm/dts/rk3399pro-vmarc-som.dtsi
index ebccc4a..5d087be 100644 (file)
--- a/arch/arm/dts/rk3399pro-vmarc-som.dtsi
+++ b/arch/arm/dts/rk3399pro-vmarc-som.dtsi
@@ -11,6 +11,18 @@
 
 / {
        compatible = "vamrs,rk3399pro-vmarc-som", "rockchip,rk3399pro";
+
+       vcc3v3_pcie: vcc-pcie-regulator {
+               compatible = "regulator-fixed";
+               enable-active-high;
+               gpio = <&gpio4 RK_PD4 GPIO_ACTIVE_HIGH>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pcie_pwr>;
+               regulator-name = "vcc3v3_pcie";
+               regulator-always-on;
+               regulator-boot-on;
+               vin-supply = <&vcc5v0_sys>;
+       };
 };
 
 &cpu_l0 {
@@ -142,7 +154,8 @@
                                regulator-min-microvolt = <900000>;
                                regulator-max-microvolt = <900000>;
                                regulator-state-mem {
-                                       regulator-off-in-suspend;
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <900000>;
                                };
                        };
 
@@ -177,7 +190,8 @@
                                regulator-min-microvolt = <1850000>;
                                regulator-max-microvolt = <1850000>;
                                regulator-state-mem {
-                                       regulator-off-in-suspend;
+                                       regulator-on-in-suspend;
+                                       regulator-suspend-microvolt = <1850000>;
                                };
                        };
 
@@ -304,6 +318,22 @@
        sdmmc-supply = <&vccio_sd>;
 };
 
+&pcie_phy {
+       status = "okay";
+};
+
+&pcie0 {
+       ep-gpios = <&gpio0 RK_PB4 GPIO_ACTIVE_HIGH>;
+       max-link-speed = <2>;
+       num-lanes = <4>;
+       pinctrl-0 = <&pcie_clkreqnb_cpm>;
+       pinctrl-names = "default";
+       vpcie0v9-supply = <&vcca_0v9>;  /* VCC_0V9_S0 */
+       vpcie1v8-supply = <&vcca_1v8>;  /* VCC_1V8_S0 */
+       vpcie3v3-supply = <&vcc3v3_pcie>;
+       status = "okay";
+};
+
 &pinctrl {
        hym8563 {
                hym8563_int: hym8563-int {
@@ -311,6 +341,12 @@
                };
        };
 
+       pcie {
+               pcie_pwr: pcie-pwr {
+                       rockchip,pins = <4 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+
        pmic {
                pmic_int_l: pmic-int-l {
                        rockchip,pins = <1 RK_PC2 0 &pcfg_pull_up>;