[PATCH 2/2] PCI: qcom-ep: Mark BAR0/BAR2 as 64bit BARs and BAR1/BAR3 as RESERVED

[Manivannan Sadhasivam]

On all Qcom endpoint SoCs, BAR0/BAR2 are 64bit BARs by default and software
cannot change the type. So mark the those BARs as 64bit BARs and also mark
the successive BAR1/BAR3 as RESERVED BARs so that the EPF drivers cannot
use them.

Cc: stable+noautosel@xxxxxxxxxx # depends on patch introducing only_64bit flag
Fixes: f55fee56a631 ("PCI: qcom-ep: Add Qualcomm PCIe Endpoint controller driver")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
---
 drivers/pci/controller/dwc/pcie-qcom-ep.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c
index c08f64d7a825..01d3862d7003 100644
--- a/drivers/pci/controller/dwc/pcie-qcom-ep.c
+++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c
@@ -825,6 +825,10 @@ static const struct pci_epc_features qcom_pcie_epc_features = {
 	.msi_capable = true,
 	.msix_capable = false,
 	.align = SZ_4K,
+	.bar[BAR_0] = { .only_64bit = true, },
+	.bar[BAR_1] = { .type = BAR_RESERVED, },
+	.bar[BAR_2] = { .only_64bit = true, },
+	.bar[BAR_3] = { .type = BAR_RESERVED, },
 };
 
 static const struct pci_epc_features *
-- 
2.25.1