* [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
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/1] arm64: dts: rockchip: enable NPU on Radxa E52C
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
1 sibling, 0 replies; 3+ messages in thread
From: Chukun Pan @ 2026-10-07 9:50 UTC (permalink / raw)
To: amadeus
Cc: conor+dt, devicetree, heiko, krzk+dt, linux-arm-kernel,
linux-kernel, linux-rockchip
Hi,
> 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.
friendly ping
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/1] arm64: dts: rockchip: enable NPU on Radxa E52C
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
1 sibling, 0 replies; 3+ messages in thread
From: Heiko Stuebner @ 2026-10-08 15:12 UTC (permalink / raw)
To: Chukun Pan
Cc: Heiko Stuebner, Rob Herring, Conor Dooley, Krzysztof Kozlowski,
linux-arm-kernel, linux-rockchip, linux-kernel, devicetree
On Sun, 16 Aug 2026 18:00:00 +0800, Chukun Pan wrote:
> 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.
>
>
Applied, thanks!
[1/1] arm64: dts: rockchip: enable NPU on Radxa E52C
commit: f204f28bd1fa9b4cf3e47488ba3ba25251aba18a
Best regards,
--
Heiko Stuebner <heiko@sntech.de>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2026-10-08 15:12 ` Heiko Stuebner
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