[8QXP][Android Automotive] Can't see pcie

WolsYang — Fri, 21 Apr 2023 09:35:33 GMT

Can not see pcie on i.MX8QXP internal PLL with Android Automotive 12.0.0_2.1.0 (Linux 5.15.32 BSP)

mek_8q:/ # zcat /proc/config.gz | grep -i imx_pci CONFIG_PHY_FSL_IMX_PCIE=y mek_8q:/ # zcat /proc/config.gz | grep -i pci_imx CONFIG_PCI_IMX6=y CONFIG_PCI_IMX6_HOST=y mek_8q:/ # dmesg | grep -i pci [ 0.000000] Kernel command line: stack_depot_disable=on kasan.stacktrace=off kvm-arm.mode=protected cgroup_disable=pressure console=ttyLP0,115200 earlycon init=/init androidboot.hardware=nxp firmware_class.pe [ 0.314189] PCI: CLS 0 bytes, default 64 [ 2.834329] tcpci: probe of 1-0050 failed with error -1 mek_8q:/ # lspci mek_8q:/ #

The HW should be ok since we can see it in uboot（Please ignore gpio error, for quick test we did'nt set it yet.）

=> pci pca953x gpio@1a: Error reading output register imx_pcie pcie@0x5f010000: -16 unable to get clkreq. imx_pcie pcie@0x5f010000: -2 unable to get disable-gpio. pca953x gpio@1a: Error reading output register imx_pcie pcie@0x5f010000: 3 unable to get power-on-gpio. imx_pcie pcie@0x5f010000: -16 unable to get power-on-gpio. PCI: pcie phy link never came up

Also we can see it on linux with this dts config

&pcieb{ ext_osc = <0>; };

Re: [8QXP][Android Automotive] Can't see pcie

WolsYang — Mon, 24 Apr 2023 02:50:25 GMT

I close it because it like a DTS problem.
Seems we re-write DTS so this issue is gone, but we still don't know which point cause this issue come.

i.MX Processorsのトピック[8QXP][Android Automotive] Can't see pcie

[8QXP][Android Automotive] Can't see pcie

Re: [8QXP][Android Automotive] Can't see pcie