[v3,4/6] PCI: uniphier: Add iATU register support
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Message ID 1591174481-13975-5-git-send-email-hayashi.kunihiko@socionext.com
State New, archived
Headers show
Series
  • PCI: uniphier: Add features for UniPhier PCIe host controller
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Commit Message

Kunihiko Hayashi June 3, 2020, 8:54 a.m. UTC
This gets iATU register area from reg property. In Synopsys DWC version
4.80 or later, since iATU register area is separated from core register
area, this area is necessary to get from DT independently.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
---
 drivers/pci/controller/dwc/pcie-uniphier.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch
diff mbox series

diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c
index a8dda39..ad14e67 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier.c
@@ -447,6 +447,11 @@  static int uniphier_pcie_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->pci.dbi_base))
 		return PTR_ERR(priv->pci.dbi_base);
 
+	priv->pci.atu_base =
+		devm_platform_ioremap_resource_byname(pdev, "atu");
+	if (IS_ERR(priv->pci.atu_base))
+		priv->pci.atu_base = NULL;
+
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "link");
 	priv->base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(priv->base))