summary refs log tree commit diff
path: root/Documentation/devicetree/bindings/pci
diff options
context:
space:
mode:
authorKishon Vijay Abraham I <kishon@ti.com>2019-03-25 15:09:30 +0530
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2019-04-15 13:24:01 +0100
commit26f51e85b3b61106ea8b9e1c0a277aa3851f7433 (patch)
tree6949a30280ce40d936f3bb00993c4850a86cabaf /Documentation/devicetree/bindings/pci
parent156c6fef75a41bc463cc1e3c1b45de140443ae31 (diff)
downloadlinux-26f51e85b3b61106ea8b9e1c0a277aa3851f7433.tar.gz
dt-bindings: PCI: Document "atu" reg-names
Document "atu" reg-names required to get the register space for ATU in
Synopsys designware core version >= 4.80.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
-rw-r--r--Documentation/devicetree/bindings/pci/designware-pcie.txt7
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
index c124f9bc11f3..5561a1c060d0 100644
--- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
@@ -4,8 +4,11 @@ Required properties:
 - compatible:
 	"snps,dw-pcie" for RC mode;
 	"snps,dw-pcie-ep" for EP mode;
-- reg: Should contain the configuration address space.
-- reg-names: Must be "config" for the PCIe configuration space.
+- reg: For designware cores version < 4.80 contains the configuration
+       address space. For designware core version >= 4.80, contains
+       the configuration and ATU address space
+- reg-names: Must be "config" for the PCIe configuration space and "atu" for
+	     the ATU address space.
     (The old way of getting the configuration address space from "ranges"
     is deprecated and should be avoided.)
 - num-lanes: number of lanes to use