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arm64: tegra: Add support for PCIe endpoint mode in P2972-0000 platform

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Add endpoint mode support for PCIe C5 controller in P2972-0000 platform
with information about supplies, PHY, PERST GPIO and GPIO that controls
PCIe reference clock coming from the host system.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Vidya Sagar 2020-03-03 23:40:51 +05:30 committed by Thierry Reding
parent 0c988b731e
commit 84eaaf7500
1 changed files with 18 additions and 0 deletions
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18
arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
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@ -199,6 +199,24 @@
"p2u-5", "p2u-6", "p2u-7";
};
pcie_ep@141a0000 {
status = "disabled";
vddio-pex-ctl-supply = <&vdd_1v8ao>;
reset-gpios = <&gpio TEGRA194_MAIN_GPIO(GG, 1) GPIO_ACTIVE_LOW>;
nvidia,refclk-select-gpios = <&gpio_aon TEGRA194_AON_GPIO(AA, 5)
GPIO_ACTIVE_HIGH>;
phys = <&p2u_nvhs_0>, <&p2u_nvhs_1>, <&p2u_nvhs_2>,
<&p2u_nvhs_3>, <&p2u_nvhs_4>, <&p2u_nvhs_5>,
<&p2u_nvhs_6>, <&p2u_nvhs_7>;
phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3", "p2u-4",
"p2u-5", "p2u-6", "p2u-7";
};
fan: fan {
compatible = "pwm-fan";
pwms = <&pwm4 0 45334>;