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[v4,4/6] PCI: uniphier: Add iATU register support

Message ID 1591350276-15816-5-git-send-email-hayashi.kunihiko@socionext.com
State New
Headers show
Series PCI: uniphier: Add features for UniPhier PCIe host controller | expand

Commit Message

Kunihiko Hayashi June 5, 2020, 9:44 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(+)
diff mbox series

Patch

diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c
index 5ce2479..c37a968 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier.c
@@ -451,6 +451,11 @@  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))