[PATCH 1/3] arm64: dts: renesas: r9a08g046: Add USB2.0 placeholder nodes

[Tommaso Merciai]

The USB2.0 wiring on the RZ SMARC Carrier-II board is the same for the
RZ/G3E and RZ/G3L SoMs, so the nodes belong in the shared
renesas-smarc2.dtsi. Enabling them there breaks the RZ/G3L SMARC EVK
build, as the r9a08g046 (RZ/G3L) SoC DTSI describes neither the USB2.0
host (OHCI/EHCI) nor function (HSUSB) instances:

Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:94.1-7 Label or path ehci0 not found
Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:99.1-7 Label or path ehci1 not found
Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:104.1-8 Label or path hsusb0 not found
Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:114.1-7 Label or path ohci0 not found
Error: arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi:119.1-7 Label or path ohci1 not found

Add minimal placeholder nodes carrying only the reg property.
The remaining properties will be filled in once USB2.0 support for
RZ/G3L is complete.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/renesas/r9a08g046.dtsi | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi b/arch/arm64/boot/dts/renesas/r9a08g046.dtsi
index c63a857f0e5b..5951a68c981c 100644
--- a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a08g046.dtsi
@@ -1001,6 +1001,31 @@ queue3 {
 			};
 		};
 
+		ohci0: usb@11e10000 {
+			reg = <0 0x11e10000 0 0x100>;
+			/* placeholder */
+		};
+
+		ohci1: usb@11e90000 {
+			reg = <0 0x11e90000 0 0x100>;
+			/* placeholder */
+		};
+
+		ehci0: usb@11e10100 {
+			reg = <0 0x11e10100 0 0x100>;
+			/* placeholder */
+		};
+
+		ehci1: usb@11e90100 {
+			reg = <0 0x11e90100 0 0x100>;
+			/* placeholder */
+		};
+
+		hsusb0: usb@11e30000 {
+			reg = <0 0x11e30000 0 0x10000>;
+			/* placeholder */
+		};
+
 		pcie: pcie@11e40000 {
 			reg = <0 0x11e40000 0 0x10000>;
 			ranges = <0x02000000 0 0x30000000 0 0x30000000 0 0x08000000>;
-- 
2.54.0