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.