Re: [PPC] Boot problems after the pci-v6.18-changes

On 13 October 2025 at 05:02 pm, Christian Zigotzky wrote:

On 13 October 2025 at 04:50 pm, Christian Zigotzky wrote:

quoted

On 13 October 2025 at 07:23 am, Christian Zigotzky wrote:

quoted

Better for testing (All AMD graphics cards):

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 214ed060ca1b..e006b0560b39 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c

@@ -2525,6 +2525,15 @@ static void quirk_disable_aspm_l0s_l1(struct 

pci_dev *dev)
*/
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASMEDIA, 0x1080, 
quirk_disable_aspm_l0s_l1);

+
+static void quirk_disable_aspm_all(struct pci_dev *dev)
+{
+       pci_info(dev, "Disabling ASPM\n");
+       pci_disable_link_state(dev, PCIE_LINK_STATE_ALL);
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID, 
quirk_disable_aspm_all);
+
/*
* Some Pericom PCIe-to-PCI bridges in reverse mode need the PCIe 
Retrain
* Link bit cleared after starting the link retrain process to allow 
this

This patch has solved the boot issue but I get the following error 
messages again and again:

[  186.765644] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0 (no details found
[  187.789034] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0
[  187.789052] pcieport 0001:00:00.0: PCIe Bus Error: 
severity=Correctable, type=Data Link Layer, (Transmitter ID)
[  187.789058] pcieport 0001:00:00.0:   device [1957:0451] error 
status/mask=00001000/00002000
[  187.789066] pcieport 0001:00:00.0:    [12] Timeout
[  187.789120] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0 (no details found
[  187.789169] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0 (no details found
[  187.789218] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0 (no details found
[  188.812514] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0

I don't get these messages with the revert patch. [1]

-- Christian

[1] 
https://github.com/chzigotzky/kernels/blob/main/patches/e5500/pci.patch

0001:00:00.0 PCI bridge: Freescale Semiconductor Inc Device 0451 (rev 21)

Solution?

+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_FSL, PCI_ANY_ID, 
quirk_disable_aspm_all);