This patch adds the device tree nodes for the R8A7791 Koelsch board
Signed-off-by: Phil Edworthy <phil.edworthy@xxxxxxxxxxx>
---
v5:
- Renesas SoCs compatible string has peripheral before device name
- Add PCIe bus clock reference
- Add additional interrupt bindings
- Use dma-ranges property to specify inbound memory regions
---
arch/arm/boot/dts/r8a7791-koelsch.dts | 14 ++++++++++++++
arch/arm/boot/dts/r8a7791.dtsi | 24 ++++++++++++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index ee23b7b..3130a0c 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -204,6 +204,16 @@
states = <3300000 1
1800000 0>;
};
+
+ clocks {
+ /* External PCIe bus clock */
+ pcie_bus_clk: pcie_bus_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <100000000>;
+ clock-output-names = "pcie_bus";
+ };
+ };
};
&extal_clk {
@@ -382,3 +392,7 @@
spi-cpha;
};
};
+
+&pcie {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index ccfba57..7a4be4c 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -836,4 +836,28 @@
#size-cells = <0>;
status = "disabled";
};
+
+ pcie: pcie@fe000000 {
+ compatible = "renesas,pcie-r8a7791";
+ reg = <0 0xfe000000 0 0x80000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ ranges = <0x01000000 0 0x00000000 0 0xfe100000 0 0x00100000
+ 0x02000000 0 0xfe200000 0 0xfe200000 0 0x00200000
+ 0x02000000 0 0x30000000 0 0x30000000 0 0x08000000
+ 0x42000000 0 0x38000000 0 0x38000000 0 0x08000000>;
+ /* Map all possible DDR as inbound ranges */
+ dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x80000000
+ 0x43000000 2 0x00000000 2 0x00000000 1 0x00000000>;
+ interrupts = <0 116 IRQ_TYPE_LEVEL_HIGH
+ 0 117 IRQ_TYPE_LEVEL_HIGH
+ 0 118 IRQ_TYPE_LEVEL_HIGH>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &gic 0 116 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&mstp3_clks R8A7791_CLK_PCIE>, <&pcie_bus_clk>;
+ clock-names = "pcie", "pcie_bus";
+ status = "disabled";
+ };
};
--
1.9.0
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