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PCIE C7 EP not work

Mar 04, 2024

hi ,

R35.3.1

update ODMDATA =“gbe-uphy-config-0,hsstp-lane-map-3,hsio-uphy-config-16,nvhs-uphy-config-0”


The following is the PCIE device tree that I modified


pcie_ep@141e0000 {
status = "okay";

num-lanes = ;

nvidia,max-speed = <0x3>;

reset-gpios = <&tegra_main_gpio TEGRA234_MAIN_GPIO(AG, 1) GPIO_ACTIVE_LOW>;

phys = <&p2u_gbe_0>, <&p2u_gbe_1>, <&p2u_gbe_2>,
<&p2u_gbe_3>, <&p2u_gbe_4>, <&p2u_gbe_5>,
<&p2u_gbe_6>, <&p2u_gbe_7>;
phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3", "p2u-4",
"p2u-5", "p2u-6", "p2u-7";
};



When an error occurs during system startup:

[ 6.357309] tegra194-pcie 141e0000.pcie_ep: Adding to iommu group 9

[ 6.370587] tegra194-pcie 141e0000.pcie_ep: Failed to get PERST GPIO: -517

[ 6.370591] tegra194-pcie 141e0000.pcie_ep: Failed to parse device tree: -517




Boot the root port system.

endpoint device:# [ 560.998311] tegra194-pcie 141e0000.pcie_ep: Failed to init UPHY for PCIe EP: -22



  • May I ask why the error ?

    thanks.