From: Guanhua Gao <guanhua.gao@xxxxxxx> Set DMA mask and coherent DMA mask to enable 64-bit addressing. Signed-off-by: Guanhua Gao <guanhua.gao@xxxxxxx> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx> Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- drivers/pci/controller/dwc/pci-layerscape-ep.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c index 1b884854c18e..c19e7ec58b05 100644 --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c @@ -261,6 +261,10 @@ static int __init ls_pcie_ep_probe(struct platform_device *pdev) pcie->max_width = (dw_pcie_readw_dbi(pci, PCIE_LINK_CAP) >> MAX_LINK_W_SHIFT) & MAX_LINK_W_MASK; + /* set 64-bit DMA mask and coherent DMA mask */ + if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))) + dev_warn(dev, "Failed to set 64-bit DMA mask.\n"); + platform_set_drvdata(pdev, pcie); ret = dw_pcie_ep_init(&pci->ep); -- 2.34.1
