TI K3 AM69 Kernel Panic when PCIe Controller is Enabled

[João Paulo Gonçalves]

Hi Siddharth,

> The E2E thread above leads to another one where the issue was claimed to be
> seen only with the usage of an external reference clock, and it was fixed
> with the usage of the internal reference clock. Does this hold true for the
> board that you are using as well?

No, we changed to use the internal reference clocks on the current
hardware revision (sent upstream on [1]) and still have the same issue.
Please look at the PCIe nodes in [1] so you can confirm this. For
example:

//file k3-am69-aquila.dtsi
/* Aquila PCIE_1 */
&pcie0_rc {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_pcie0_reset>;
	clocks = <&k3_clks 332 0>, <&serdes1 CDNS_TORRENT_REFCLK_DRIVER>;
	clock-names = "fck", "pcie_refclk";
	num-lanes = <2>;
	phy-names = "pcie-phy";
	phys = <&serdes1_pcie0_2l_link>;
	reset-gpios = <&main_gpio0 32 GPIO_ACTIVE_HIGH>;
	ti,syscon-acspcie-proxy-ctrl = <&acspcie1_proxy_ctrl 0x3>;
	status = "disabled";
};

[1] https://lore.kernel.org/lkml/20251104144915.60445-1-francesco@dolcini.it/

> Regards,
> Siddharth.

Best Regards,
João Paulo Gonçalves