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PCI: rcar-gen4: set ep BAR4 fixed size

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[ Upstream commit b584ab12d59f646b9254b2b16ff197d612fd4935 ]

On rcar-gen4, the ep BAR4 has a fixed size of 256B. Document this
constraint in the epc features of the platform.

Fixes: e311b3834d ("PCI: rcar-gen4: Add endpoint mode support")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://patch.msgid.link/20250328-rcar-gen4-bar4-v1-1-10bb6ce9ee7f@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jerome Brunet
2025-03-28 15:30:44 +01:00
committed by Greg Kroah-Hartman
parent 17e4b0fcd2
commit d9342fced7
1 changed files with 1 additions and 0 deletions
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drivers/pci/controller/dwc/pcie-rcar-gen4.c
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@@ -403,6 +403,7 @@ static const struct pci_epc_features rcar_gen4_pcie_epc_features = {
.msix_capable = false,
.bar[BAR_1] = { .type = BAR_RESERVED, },
.bar[BAR_3] = { .type = BAR_RESERVED, },
.bar[BAR_4] = { .type = BAR_FIXED, .fixed_size = 256 },
.bar[BAR_5] = { .type = BAR_RESERVED, },
.align = SZ_1M,
};