ARM: dts: rmobile: Extract SDHI nodes on M3N

The SDHI nodes are not in Linux 4.17 DTs in M3N, pull them into U-Boot
specific DT extras until they hit mainline Linux, to make syncing of
DTs easier.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
---
V2: Rebase on u-boot/master
diff --git a/arch/arm/dts/r8a77965-u-boot.dtsi b/arch/arm/dts/r8a77965-u-boot.dtsi
index 15d9467..cbd29b3 100644
--- a/arch/arm/dts/r8a77965-u-boot.dtsi
+++ b/arch/arm/dts/r8a77965-u-boot.dtsi
@@ -20,6 +20,50 @@
 		status = "disabled";
 	};
 
+	sdhi0: sd@ee100000 {
+		compatible = "renesas,sdhi-r8a77965";
+		reg = <0 0xee100000 0 0x2000>;
+		interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 314>;
+		max-frequency = <200000000>;
+		power-domains = <&sysc 32>;
+		resets = <&cpg 314>;
+		status = "disabled";
+	};
+
+	sdhi1: sd@ee120000 {
+		compatible = "renesas,sdhi-r8a77965";
+		reg = <0 0xee120000 0 0x2000>;
+		interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 313>;
+		max-frequency = <200000000>;
+		power-domains = <&sysc 32>;
+		resets = <&cpg 313>;
+		status = "disabled";
+	};
+
+	sdhi2: sd@ee140000 {
+		compatible = "renesas,sdhi-r8a77965";
+		reg = <0 0xee140000 0 0x2000>;
+		interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 312>;
+		max-frequency = <200000000>;
+		power-domains = <&sysc 32>;
+		resets = <&cpg 312>;
+		status = "disabled";
+	};
+
+	sdhi3: sd@ee160000 {
+		compatible = "renesas,sdhi-r8a77965";
+		reg = <0 0xee160000 0 0x2000>;
+		interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 311>;
+		max-frequency = <200000000>;
+		power-domains = <&sysc 32>;
+		resets = <&cpg 311>;
+		status = "disabled";
+	};
+
 	ehci0: usb@ee080100 {
 		compatible = "generic-ehci";
 		reg = <0 0xee080100 0 0x100>;