From: Yue Wang <yue.wang@xxxxxxxxxxx>
The Meson-PCIE-PHY controller supports the 5-Gbps data rate
of the PCI Express Gen 2 specification and is backwardcompatible
with the 2.5-Gbps Gen 1.1 specification with only
inferred idle detection supported on AMLOGIC SoCs.
Signed-off-by: Hanjie Lin <hanjie.lin@xxxxxxxxxxx>
Signed-off-by: Yue Wang <yue.wang@xxxxxxxxxxx>
---
.../bindings/phy/amlogic,meson-pcie-phy.txt | 31 ++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/amlogic,meson-pcie-phy.txt
diff --git a/Documentation/devicetree/bindings/phy/amlogic,meson-pcie-phy.txt b/Documentation/devicetree/bindings/phy/amlogic,meson-pcie-phy.txt
new file mode 100644
index 0000000..db99085
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/amlogic,meson-pcie-phy.txt
@@ -0,0 +1,31 @@
+* Amlogic Meson AXG PCIE PHY binding
+
+Required properties:
+- compatible: Should be
+ - "amlogic,axg-pcie-phy"
+- #phys-cells: must be 0 (see phy-bindings.txt in this directory)
+- reg: The base address and length of the registers
+- resets: phandle to the reset lines
+- reset-names: must contain "phy" and "peripheral"
+ - "port_a" Port A reset
+ - "port_b" Port B reset
+ - "phy" PHY reset
+ - "apb" APB reset
+Optional properties:
+- phy-supply: see phy-bindings.txt in this directory
+
+Example:
+ pcie_phy: pcie-phy@ff644000 {
+ #phy-cells = <0>;
+ compatible = "amlogic,axg-pcie-phy";
+ reg = <0x0 0xff644000 0x0 0x2000>;
+ resets = <&reset RESET_PCIE_A>,
+ <&reset RESET_PCIE_B>,
+ <&reset RESET_PCIE_PHY>,
+ <&reset RESET_PCIE_APB>;
+ reset-names =
+ "port_a",
+ "port_b",
+ "phy",
+ "apb";
+ };
--
2.7.4
