[PATCH v5 6/9] ARM: shmobile: Add PCIe device tree nodes for R8A7790

[Phil Edworthy]

This patch adds the device tree nodes for R8A7790

Signed-off-by: Phil Edworthy <phil.edworthy at renesas.com>
---
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/r8a7790-lager.dts | 10 ++++++++++
 arch/arm/boot/dts/r8a7790.dtsi      | 24 ++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index a55c5f8..bbbcb63 100644
--- a/arch/arm/boot/dts/r8a7790-lager.dts
+++ b/arch/arm/boot/dts/r8a7790-lager.dts
@@ -139,6 +139,16 @@
 		states = <3300000 1
 			  1800000 0>;
 	};
+
+	clocks {
+		/* External PCIe bus clock - not used */
+		pcie_bus_clk: pcie_bus_clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <0>;
+			clock-output-names = "pcie_bus";
+		};
+	};
 };
 
 &extal_clk {
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index df9ec61..dbcea57 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -821,4 +821,28 @@
 		#size-cells = <0>;
 		status = "disabled";
 	};
+
+	pcie: pcie at fe000000 {
+		compatible = "renesas,pcie-r8a7790";
+		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 1 0x80000000 1 0x80000000 0 0x80000000>;
+		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 R8A7790_CLK_PCIE>, <&pcie_bus_clk>;
+		clock-names = "pcie", "pcie_bus";
+		status = "disabled";
+	};
 };
-- 
1.9.0