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| author | Siddharth Vadapalli <s-vadapalli@ti.com> | 2024-03-28 14:20:41 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-05-28 11:15:15 -0500 |
| commit | 9ffa0e70b2daf9b0271e4960b7c8a2350e2cda08 (patch) | |
| tree | 2477d77a291505be83be42f829e2b2de657fc0b4 /drivers/pci/controller/dwc/pci-layerscape.c | |
| parent | 5125fdc3292eea20870d4e6cefa62dc1245ce7ec (diff) | |
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/20240328085041.2916899-3-s-vadapalli@ti.com
Suggested-by: Bjorn Helgaas <helgaas@kernel.org>
Suggested-by: Niklas Cassel <cassel@kernel.org>
Suggested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Diffstat (limited to 'drivers/pci/controller/dwc/pci-layerscape.c')
0 files changed, 0 insertions, 0 deletions