[RFC PATCH v4 6/6] arm64: dts: rockchip: rk3576-rock-4d: enable NPU
From: Jiaxing Hu
Date: Mon Aug 03 2026 - 05:44:38 EST
Enable rknn_core_0 and its IOMMU on the Radxa ROCK 4D and supply the
core from vdd_npu_s0.
Signed-off-by: Jiaxing Hu <gahing@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
index 272af1012..965e0906b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
@@ -442,6 +442,7 @@ regulator-state-mem {
};
vdd_npu_s0: dcdc-reg2 {
+ regulator-always-on;
regulator-boot-on;
regulator-enable-ramp-delay = <400>;
regulator-min-microvolt = <550000>;
@@ -869,3 +870,12 @@ vp0_out_hdmi: endpoint@ROCKCHIP_VOP2_EP_HDMI0 {
remote-endpoint = <&hdmi_in_vp0>;
};
};
+
+&rknn_core_0 {
+ npu-supply = <&vdd_npu_s0>;
+ status = "okay";
+};
+
+&rknn_mmu_0 {
+ status = "okay";
+};
--
2.43.0