Describe the PCIe PHY, PCIEC, and PCIe bus clock in the R8A77980 device
tree.
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
---
Changes in version 3:
- refreshed against the recent tree (moving the PCIe clock node);
- added Simon's tag.
Changes in version 2:
- merged in the PCIEC patch, renamed the patch, updated the description
accordingly;
- used R8A77980_PD_ALWAYS_ON in the "power-domains" props;
- mentioned Vladimir's original work and added his signoff.
arch/arm64/boot/dts/renesas/r8a77980.dtsi | 49 ++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
Index: renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980.dtsi
+++ renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
@@ -98,6 +98,13 @@
clock-frequency = <0>;
};
+ /* External PCIe clock - can be overridden by the board */
+ pcie_bus_clk: pcie_bus {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
pmu_a53 {
compatible = "arm,cortex-a53-pmu";
interrupts-extended = <&gic GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
@@ -437,6 +444,16 @@
status = "disabled";
};
+ pcie_phy: pcie-phy@e65d0000 {
+ compatible = "renesas,r8a77980-pcie-phy";
+ reg = <0 0xe65d0000 0 0x8000>;
+ #phy-cells = <0>;
+ clocks = <&cpg CPG_MOD 319>;
+ power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
+ resets = <&cpg 319>;
+ status = "disabled";
+ };
+
canfd: can@e66c0000 {
compatible = "renesas,r8a77980-canfd",
"renesas,rcar-gen3-canfd";
@@ -1047,6 +1064,38 @@
resets = <&cpg 408>;
};
+ pciec: pcie@fe000000 {
+ compatible = "renesas,pcie-r8a77980",
+ "renesas,pcie-rcar-gen3";
+ reg = <0 0xfe000000 0 0x80000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ bus-range = <0x00 0xff>;
+ device_type = "pci";
+ ranges = <
+ 0x01000000 0 0x00000000 0 0xfe100000 0 0x0100000
+ 0x02000000 0 0xfe200000 0 0xfe200000 0 0x0200000
+ 0x02000000 0 0x30000000 0 0x30000000 0 0x8000000
+ 0x42000000 0 0x38000000 0 0x38000000 0 0x8000000
+ >;
+ dma-ranges = <0x42000000 0 0x40000000 0 0x40000000
+ 0 0x80000000>;
+ interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 150 IRQ_TYPE_LEVEL_HIGH>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &gic GIC_SPI 148
+ IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 319>, <&pcie_bus_clk>;
+ clock-names = "pcie", "pcie_bus";
+ power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
+ resets = <&cpg 319>;
+ phys = <&pcie_phy>;
+ phy-names = "pcie";
+ status = "disabled";
+ };
+
vspd0: vsp@fea20000 {
compatible = "renesas,vsp2";
reg = <0 0xfea20000 0 0x5000>;
