[PATCH] arm64: dts: rockchip: Add pcie1 slot for rk3576 evb1 board

[Shawn Lin]

PCIe1 and usb_drd1_dwc3 is sharing the same PHY on RK3576 platform.
For pcie1 slot and USB interface, there is a swich IC labelled as
Dial_Switch_1 on evb1 board. If we need to make pcie1 slot work for this
board, we should first disable usb_drd1_dwc3 and then set Dial_Switch_1
to low state.

Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>
---

 arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts
index ac397ac..d51f3f1 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts
@@ -691,6 +691,15 @@
 	};
 };
 
+&pcie1 {
+	reset-gpios = <&gpio4 RK_PC4 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&vcc3v3_pcie1>;
+	/* Disable usb_drd1_dwc3 if enabling pcie1 and set Dial_Switch_1
+	 * to low state according to the schematic of page 17.
+	 */
+	status = "disabled";
+};
+
 &pinctrl {
 	usb {
 		usb_host_pwren: usb-host-pwren {
-- 
2.7.4