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| author | Siddharth Vadapalli <[email protected]> | 2024-03-28 08:50:41 +0000 |
|---|---|---|
| committer | Bjorn Helgaas <[email protected]> | 2024-05-28 16:15:15 +0000 |
| commit | 9ffa0e70b2daf9b0271e4960b7c8a2350e2cda08 (patch) | |
| tree | 2477d77a291505be83be42f829e2b2de657fc0b4 /drivers/pci/controller/dwc/pcie-qcom-ep.c | |
| parent | PCI: keystone: Relocate ks_pcie_set/clear_dbi_mode() (diff) | |
| download | kernel-9ffa0e70b2daf9b0271e4960b7c8a2350e2cda08.tar.gz kernel-9ffa0e70b2daf9b0271e4960b7c8a2350e2cda08.zip | |
PCI: keystone: Don't enable BAR 0 for AM654x
After 6ab15b5e7057 ("PCI: dwc: keystone: Convert .scan_bus() callback to
use add_bus"), ks_pcie_v3_65_add_bus() enabled BAR 0 for both v3.65a and
v4.90a devices. On the AM654x SoC, which uses v4.90a, enabling BAR 0
causes Completion Timeouts when setting up MSI-X. These timeouts delay
boot of the AM654x by about 45 seconds.
Move the BAR 0 initialization to ks_pcie_msi_host_init(), which is only
used for v3.65a devices, and remove ks_pcie_v3_65_add_bus().
[bhelgaas: commit log]
Fixes: 6ab15b5e7057 ("PCI: dwc: keystone: Convert .scan_bus() callback to use add_bus")
Link: https://lore.kernel.org/linux-pci/[email protected]
Suggested-by: Bjorn Helgaas <[email protected]>
Suggested-by: Niklas Cassel <[email protected]>
Suggested-by: Serge Semin <[email protected]>
Signed-off-by: Siddharth Vadapalli <[email protected]>
Signed-off-by: Krzysztof Wilczyński <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Niklas Cassel <[email protected]>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-qcom-ep.c')
0 files changed, 0 insertions, 0 deletions