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* [PATCH v2 1/1] arm64: dts: rockchip: enable NPU on Radxa E52C
@ 2026-08-16 10:00 Chukun Pan
  2026-10-07  9:50 ` Chukun Pan
  2026-10-08 15:12 ` Heiko Stuebner
  0 siblings, 2 replies; 3+ messages in thread
From: Chukun Pan @ 2026-08-16 10:00 UTC (permalink / raw)
  To: Heiko Stuebner
  Cc: Rob Herring, Chukun Pan, Conor Dooley, Krzysztof Kozlowski,
	linux-arm-kernel, linux-rockchip, linux-kernel, devicetree

Like the RK3588, the RK3582 has NPUs. Enable the NPU cores and their
MMUs, and connect the regulators. Remove always-on and boot-on from
the regulator because it is connected to the NPU power domain.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
---
 .../boot/dts/rockchip/rk3582-radxa-e52c.dts   | 36 +++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts b/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
index 854c118418eb..640c5be2f0fc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3582-radxa-e52c.dts
@@ -253,8 +253,6 @@ vdd_npu_s0: regulator@42 {
 		reg = <0x42>;
 		fcs,suspend-voltage-selector = <1>;
 		regulator-name = "vdd_npu_s0";
-		regulator-always-on;
-		regulator-boot-on;
 		regulator-min-microvolt = <550000>;
 		regulator-max-microvolt = <950000>;
 		regulator-ramp-delay = <2300>;
@@ -300,6 +298,10 @@ &pcie2x1l2 {
 	status = "okay";
 };
 
+&pd_npu {
+	domain-supply = <&vdd_npu_s0>;
+};
+
 &pinctrl {
 	keys {
 		pwm15_ir_m1: pwm15-ir-m1 {
@@ -354,6 +356,36 @@ &pwm14 {
 	status = "okay";
 };
 
+&rknn_core_0 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_core_1 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_core_2 {
+	npu-supply = <&vdd_npu_s0>;
+	sram-supply = <&vdd_npu_s0>;
+	status = "okay";
+};
+
+&rknn_mmu_0 {
+	status = "okay";
+};
+
+&rknn_mmu_1 {
+	status = "okay";
+};
+
+&rknn_mmu_2 {
+	status = "okay";
+};
+
 &saradc {
 	vref-supply = <&vcca_1v8_s0>;
 	status = "okay";
-- 
2.34.1



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2026-08-16 10:00 [PATCH v2 1/1] arm64: dts: rockchip: enable NPU on Radxa E52C Chukun Pan
2026-10-07  9:50 ` Chukun Pan
2026-10-08 15:12 ` Heiko Stuebner

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