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PCI: rockchip: Set address alignment for endpoint mode

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commit 7e6689b34a upstream.

The address translation unit of the rockchip EP controller does not use
the lower 8 bits of a PCIe-space address to map local memory. Thus we
must set the align feature field to 256 to let the user know about this
constraint.

Link: https://lore.kernel.org/r/20230418074700.1083505-12-rick.wertenbroek@gmail.com
Fixes: cf590b0783 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Rick Wertenbroek <rick.wertenbroek@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Damien Le Moal
2023-04-18 09:46:58 +02:00
committed by Greg Kroah-Hartman
parent 750fd00a0a
commit eec34da87b
1 changed files with 1 additions and 0 deletions
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drivers/pci/controller/pcie-rockchip-ep.c
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@@ -485,6 +485,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features = {
.linkup_notifier = false, .linkup_notifier = false,
.msi_capable = true, .msi_capable = true,
.msix_capable = false, .msix_capable = false,
.align = 256,
}; };
static const struct pci_epc_features* static const struct pci_epc_features*