Set DMA mask and coherent DMA mask such to indicate the device
can address the entire address space (32-bit in the case of
K2G and 48-bit in the case of AM654).
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
---
drivers/pci/controller/dwc/pci-keystone.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 73e6626a0d8f..80dbab267f7b 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -1224,6 +1224,11 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
return ret;
}
+ if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(48))) {
+ dev_err(dev, "Cannot set DMA mask\n");
+ return -EINVAL;
+ }
+
ret = of_property_read_u32(np, "num-lanes", &num_lanes);
if (ret)
num_lanes = 1;
--
2.17.1
