51 lines
1.8 KiB
Diff
51 lines
1.8 KiB
Diff
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diff --git a/arch/arm64/boot/dts/rockchip/overlay/Makefile b/arch/arm64/boot/dts/rockchip/overlay/Makefile
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index 340f88be0..e33e98e0d 100644
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--- a/arch/arm64/boot/dts/rockchip/overlay/Makefile
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+++ b/arch/arm64/boot/dts/rockchip/overlay/Makefile
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@@ -6,6 +6,7 @@ dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
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rockchip-rk3328-opp-1.4ghz.dtbo \
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rockchip-rk3328-opp-1.5ghz.dtbo \
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rockchip-rk3399-opp-2ghz.dtbo \
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+ rockchip-rockpi4cplus-usb-host.dtbo \
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rockchip-spi-jedec-nor.dtbo \
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rockchip-spi-spidev.dtbo \
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rockchip-uart4.dtbo \
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diff --git a/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays b/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays
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index d09351b11..2ed50f0f0 100644
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--- a/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays
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+++ b/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays
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@@ -44,6 +44,11 @@ WARNING! Not officially supported by Rockchip!!!
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Adds the 2GHz big and 1.5 GHz LITTLE opps for overclocking
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WARNING! Not officially supported by Rockchip!!!
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+### rockpi4cplus-usb-host
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+
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+Switches the top USB 3.0 port to host mode.
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+WARNING! Not officially supported by Rockchip!!!
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+
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### spi-jedec-nor
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Activates MTD support for JEDEC compatible SPI NOR flash chips on SPI bus
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diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-rockpi4cplus-usb-host.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-rockpi4cplus-usb-host.dts
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new file mode 100644
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index 000000000..654ae888f
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--- /dev/null
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+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-rockpi4cplus-usb-host.dts
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@@ -0,0 +1,16 @@
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+//For RockPI 4C+: Change the top USB3.0 port to host mode
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+
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "radxa,rockpi4c-plus", "radxa,rockpi4", "rockchip,rk3399";
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+
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+ fragment@0 {
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+ target = <&usbdrd_dwc3_0>;
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+ __overlay__ {
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+ dr_mode = "host";
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+ };
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+ };
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+};
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+
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