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Message-Id: <20230926140445.3855365-1-Frank.Li@nxp.com>
Date: Tue, 26 Sep 2023 10:04:45 -0400
From: Frank Li <Frank.Li@....com>
To: hch@...radead.org
Cc: Frank.Li@....com, bhelgaas@...gle.com,
christophe.jaillet@...adoo.fr, imx@...ts.linux.dev, kw@...ux.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
lpieralisi@...nel.org, minghuan.Lian@....com, mingkai.hu@....com,
robh@...nel.org, roy.zang@....com
Subject: [PATCH v3 1/1] PCI: layerscape-ep: set 64-bit DMA mask
From: Guanhua Gao <guanhua.gao@....com>
Set DMA mask and coherent DMA mask to enable 64-bit addressing.
Signed-off-by: Guanhua Gao <guanhua.gao@....com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
Signed-off-by: Frank Li <Frank.Li@....com>
---
Notes:
change from v2 to v3
- remove check return value of dma_set_mask_and_coherent. 64bit mask always
return success.
- remove redundate comments
change from v1 to v2
- Remove 32bit DMA mask set.
drivers/pci/controller/dwc/pci-layerscape-ep.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
index de4c1758a6c3..2c2c9aaa8700 100644
--- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
+++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
@@ -249,6 +249,8 @@ static int __init ls_pcie_ep_probe(struct platform_device *pdev)
pcie->big_endian = of_property_read_bool(dev->of_node, "big-endian");
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+
platform_set_drvdata(pdev, pcie);
ret = dw_pcie_ep_init(&pci->ep);
--
2.34.1
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