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| author | Niklas Cassel <cassel@kernel.org> | 2025-01-31 19:29:54 +0100 |
|---|---|---|
| committer | Krzysztof Wilczyński <kwilczynski@kernel.org> | 2025-03-08 14:43:11 +0000 |
| commit | 6a6b66f7e607e8f6e5b48e246093ed911c8b31be (patch) | |
| tree | 4bba22a580bc6b97502c031df6824c3371b08a24 /drivers/pci/controller/dwc | |
| parent | 3a3d4cabe681bc5d4f34626739b67d4572b0770c (diff) | |
| download | linux-6a6b66f7e607e8f6e5b48e246093ed911c8b31be.tar.gz linux-6a6b66f7e607e8f6e5b48e246093ed911c8b31be.tar.bz2 linux-6a6b66f7e607e8f6e5b48e246093ed911c8b31be.zip | |
PCI: keystone: Describe Resizable BARs as Resizable BARs
Looking at section "12.2.2.4.15 PCIe Subsystem BAR Configuration" in the
following Technical Reference Manual (TRM) for AM65x:
https://www.ti.com/lit/ug/spruid7e/spruid7e.pdf
We can see that BAR2 and BAR5 are not Fixed BARs, but actually Resizable
BARs.
Now when we actually have support for Resizable BARs, let's configure
these BARs as such.
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/20250131182949.465530-14-cassel@kernel.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Diffstat (limited to 'drivers/pci/controller/dwc')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-keystone.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c index 63bd5003da45..fdc610ec7e5e 100644 --- a/drivers/pci/controller/dwc/pci-keystone.c +++ b/drivers/pci/controller/dwc/pci-keystone.c @@ -966,10 +966,10 @@ static const struct pci_epc_features ks_pcie_am654_epc_features = { .msix_capable = true, .bar[BAR_0] = { .type = BAR_RESERVED, }, .bar[BAR_1] = { .type = BAR_RESERVED, }, - .bar[BAR_2] = { .type = BAR_FIXED, .fixed_size = SZ_1M, }, + .bar[BAR_2] = { .type = BAR_RESIZABLE, }, .bar[BAR_3] = { .type = BAR_FIXED, .fixed_size = SZ_64K, }, .bar[BAR_4] = { .type = BAR_FIXED, .fixed_size = 256, }, - .bar[BAR_5] = { .type = BAR_FIXED, .fixed_size = SZ_1M, }, + .bar[BAR_5] = { .type = BAR_RESIZABLE, }, .align = SZ_1M, }; |