arch: arm64: boot: dts: enable pci boot detect delay
Martin Gao [Sat, 24 Oct 2015 02:53:25 +0000 (19:53 -0700)]
- allow pci to detect attached device at a deferred time
- add minimum delay of 1000 miliseconds before card detection
  during boot after PCIe power and clock are stable.

Bug 1695353

Change-Id: Iccf3e443399e70eca1b620c08976878965f6deeb
Signed-off-by: Martin Gao <marting@nvidia.com>
Reviewed-on: http://git-master/r/825109
Reviewed-by: Vinayak Pane <vpane@nvidia.com>
Tested-by: Vinayak Pane <vpane@nvidia.com>

arch/arm64/boot/dts/tegra210-platforms/tegra210-darcy-pcie.dtsi

index 3d9fe5e..e6342fa 100644 (file)
@@ -21,6 +21,7 @@
        pcie-controller {
                nvidia,wake-gpio = <&gpio TEGRA_GPIO(A, 2) 0>;
                nvidia,lane-map = <0x14>;
+               nvidia,boot-detect-delay = <10000>;
                dvdd-pex-pll-supply = <&max77620_ldo1>;
                l0-dvddio-pex-supply = <&max77620_ldo1>;
                l1-dvddio-pex-supply = <&max77620_ldo1>;