without ep-gpios defined u-boot does not initialise PCIe
rockchip_pcie pcie@f8000000: failed to find ep-gpios property

additionally set max-link-speed and pinctrl-names for completeness

with this patch and the ones from Florian Klink applied to the dts
file in u-boot sata drives show up in both u-boot and linux

Signed-off-by: Dennis Gilmore <redacted>
---
 arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
index 9c2b45012daa..1e4042a7fdc3 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts

@@ -534,7 +534,10 @@ &pcie_phy {
 };
 
 &pcie0 {
+	ep-gpios = <&gpio2 RK_PD4 GPIO_ACTIVE_HIGH>;
+	max-link-speed = <2>;
 	num-lanes = <2>;
+	pinctrl-names = "default";
 	status = "okay";
 
 	vpcie12v-supply = <&vcc12v_dcin>;

-- 
2.32.0