arm64: dts: rockchip: add PCIe for M.2 M-key to rock-5b

The Radxa Rock 5B has PCIe 3x4 routed to its M.2 M-key connector
on the board's back.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230918141451.131247-3-sebastian.reichel@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index 0752b0fb4b54a1c1112b3eb052228d85ed3debac..6e52b5cf49a943083051bd7cefde594135441f71 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -53,6 +53,19 @@
                vin-supply = <&vcc_3v3_s3>;
        };
 
+       vcc3v3_pcie30: vcc3v3-pcie30-regulator {
+               compatible = "regulator-fixed";
+               enable-active-high;
+               gpios = <&gpio1 RK_PA4 GPIO_ACTIVE_HIGH>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pcie3_vcc3v3_en>;
+               regulator-name = "vcc3v3_pcie30";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               startup-delay-us = <5000>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+
        vcc5v0_host: vcc5v0-host-regulator {
                compatible = "regulator-fixed";
                regulator-name = "vcc5v0_host";
@@ -225,6 +238,18 @@
        status = "okay";
 };
 
+&pcie30phy {
+       status = "okay";
+};
+
+&pcie3x4 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pcie3_rst>;
+       reset-gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>;
+       vpcie3v3-supply = <&vcc3v3_pcie30>;
+       status = "okay";
+};
+
 &pinctrl {
        hym8563 {
                hym8563_int: hym8563-int {
@@ -244,6 +269,16 @@
                };
        };
 
+       pcie3 {
+               pcie3_rst: pcie3-rst {
+                       rockchip,pins = <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+
+               pcie3_vcc3v3_en: pcie3-vcc3v3-en {
+                       rockchip,pins = <1 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
        usb {
                vcc5v0_host_en: vcc5v0-host-en {
                        rockchip,pins = <4 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;