[PATCH v2 0/1] riscv: dts: starfive: jh7110-pine64-star64: enable usb0 host function

[PATCH v2 0/1] riscv: dts: starfive: jh7110-pine64-star64: enable usb0 host function

[E Shattow]

Enable host mode JH7110 on-chip USB for Pine64 Star64 by setting host mode
and connect vbus pinctrl.

This functionality depends on setting the USB over-current register to disable at bootloader phase, for example U-Boot:
https://patchwork.ozlabs.org/project/uboot/patch/20241012031328.4268-6-minda.chen@starfivetech.com/

If the over-current register is not prepared for us then the result is no
change in functional outcome with this patch applied; there is an error
visible to the user and this usb configuration fails (same as it is now).

Changes since v1:
 - Rebase on linux-next/master
 - use tabs for code indent

E Shattow (1):
  riscv: dts: starfive: jh7110-pine64-star64: enable usb0 host function

 .../boot/dts/starfive/jh7110-pine64-star64.dts | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

-- 
2.45.2

[PATCH v2 1/1] riscv: dts: starfive: jh7110-pine64-star64: enable usb0 host function

[E Shattow]

Pine64 Star64 set host mode and vbus pin for JH7110 on-chip USB 2.0

Signed-off-by: E Shattow <e@freeshell.de>
---
 .../boot/dts/starfive/jh7110-pine64-star64.dts | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts b/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts
index fe4a490ecc61..b764d4d92fd9 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts
+++ b/arch/riscv/boot/dts/starfive/jh7110-pine64-star64.dts
@@ -80,7 +80,23 @@ &spi0 {
 	status = "okay";
 };
 
+&sysgpio {
+	usb0_pins: usb0-0 {
+		vbus-pins {
+			pinmux = <GPIOMUX(25,  GPOUT_SYS_USB_DRIVE_VBUS,
+					       GPOEN_ENABLE,
+					       GPI_NONE)>;
+			bias-disable;
+			input-disable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+	};
+};
+
 &usb0 {
-	dr_mode = "peripheral";
+	dr_mode = "host";
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb0_pins>;
 	status = "okay";
 };
-- 
2.45.2