[PATCH 0/3] arm64: dts: rockchip: Enable the NPU on some rk3588 boards

[PATCH 0/3] arm64: dts: rockchip: Enable the NPU on some rk3588 boards

[Ricardo Pardini via B4 Relay]

This series enables the NPU on a few Rockchip rk3588 boards.
In every case here, the required regulator was already described.

Signed-off-by: Ricardo Pardini <ricardo@pardini.net>
---
Ricardo Pardini (3):
      arm64: dts: rockchip: Enable the NPU on NanoPC T6/T6-LTS
      arm64: dts: rockchip: Enable the NPU on FriendlyElec CM3588
      arm64: dts: rockchip: Enable the NPU on Turing RK1

 .../dts/rockchip/rk3588-friendlyelec-cm3588.dtsi   | 34 +++++++++++++++++++++
 arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi | 35 ++++++++++++++++++++++
 .../arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi | 34 +++++++++++++++++++++
 3 files changed, 103 insertions(+)
---
base-commit: 9448598b22c50c8a5bb77a9103e2d49f134c9578
change-id: 20251230-arm64-dts-rockchip-rk3588-npu-enablements-1e2830d2e7b0

Best regards,
-- 
Ricardo Pardini <ricardo@pardini.net>

[PATCH 1/3] arm64: dts: rockchip: Enable the NPU on NanoPC T6/T6-LTS

[Ricardo Pardini via B4 Relay]

From: Ricardo Pardini <ricardo@pardini.net>

Enable the NPU on FriendlyElec NanoPC T6/T6-LTS boards.
The regulator vdd_npu_s0 was already described.

Signed-off-by: Ricardo Pardini <ricardo@pardini.net>
---
 arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
index fafeabe9adf9e..93bd479118e92 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
@@ -629,6 +629,10 @@ &pd_gpu {
 	domain-supply = <&vdd_gpu_s0>;
 };
 
+&pd_npu {
+	domain-supply = <&vdd_npu_s0>;
+};
+
 &pinctrl {
 	gpio-leds {
 		sys_led_pin: sys-led-pin {
@@ -706,6 +710,37 @@ &pwm1 {
 	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 = <&avcc_1v8_s0>;
 	status = "okay";

-- 
2.52.0

[PATCH 2/3] arm64: dts: rockchip: Enable the NPU on FriendlyElec CM3588

[Ricardo Pardini via B4 Relay]

From: Ricardo Pardini <ricardo@pardini.net>

Enable the NPU on FriendlyElec CM3588.
The regulator vdd_npu_s0 was already described.

Signed-off-by: Ricardo Pardini <ricardo@pardini.net>
---
 .../dts/rockchip/rk3588-friendlyelec-cm3588.dtsi   | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-friendlyelec-cm3588.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-friendlyelec-cm3588.dtsi
index af431fdcbea7a..46e33e666bb3d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-friendlyelec-cm3588.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-friendlyelec-cm3588.dtsi
@@ -264,6 +264,10 @@ &pd_gpu {
 	domain-supply = <&vdd_gpu_s0>;
 };
 
+&pd_npu {
+	domain-supply = <&vdd_npu_s0>;
+};
+
 &pinctrl {
 	gpio-leds {
 		led_sys_pin: led-sys-pin {
@@ -294,6 +298,36 @@ sd_s0_pwr: sd-s0-pwr {
 	};
 };
 
+&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 = <&avcc_1v8_s0>;
 	status = "okay";

-- 
2.52.0

[PATCH 3/3] arm64: dts: rockchip: Enable the NPU on Turing RK1

[Ricardo Pardini via B4 Relay]

From: Ricardo Pardini <ricardo@pardini.net>

Enable the NPU on Turing RK1.
The regulator vdd_npu_s0 was already described.

Signed-off-by: Ricardo Pardini <ricardo@pardini.net>
---
 .../arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi
index 6daea8961fdd6..7b28ec9ce1945 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi
@@ -293,6 +293,10 @@ &pd_gpu {
 	domain-supply = <&vdd_gpu_s0>;
 };
 
+&pd_npu {
+	domain-supply = <&vdd_npu_s0>;
+};
+
 &pinctrl {
 	fan {
 		fan_int: fan-int {
@@ -333,6 +337,36 @@ &pwm0 {
 	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";
+};
+
 &sdhci {
 	bus-width = <8>;
 	no-sdio;

-- 
2.52.0

Re: [PATCH 0/3] arm64: dts: rockchip: Enable the NPU on some rk3588 boards

[Jimmy Hon]

On Tue, Dec 30, 2025 at 2:20 PM Ricardo Pardini via B4 Relay
<devnull+ricardo.pardini.net@kernel.org> wrote:
>
> This series enables the NPU on a few Rockchip rk3588 boards.
> In every case here, the required regulator was already described.
Now that the pd_npu has defined the dependency to the vdd_npu_s0,
shouldn't the regulator-always-on be removed from the regulator? When
the Rock5B enabled the NPU, it didn't define the regulator with always
on. [1]

More specifically, the commit message for the introduction of the
pd_npu label mentions how the regulator no longer needs to be always
on. [2]

[1] https://lore.kernel.org/linux-rockchip/20250721-6-10-rocket-v9-10-77ebd484941e@tomeuvizoso.net/
[2] https://lore.kernel.org/linux-rockchip/20250721-6-10-rocket-v9-7-77ebd484941e@tomeuvizoso.net/

Jimmy

>
> Signed-off-by: Ricardo Pardini <ricardo@pardini.net>
> ---
> Ricardo Pardini (3):
>       arm64: dts: rockchip: Enable the NPU on NanoPC T6/T6-LTS
>       arm64: dts: rockchip: Enable the NPU on FriendlyElec CM3588
>       arm64: dts: rockchip: Enable the NPU on Turing RK1
>
>  .../dts/rockchip/rk3588-friendlyelec-cm3588.dtsi   | 34 +++++++++++++++++++++
>  arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi | 35 ++++++++++++++++++++++
>  .../arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi | 34 +++++++++++++++++++++
>  3 files changed, 103 insertions(+)
> ---
> base-commit: 9448598b22c50c8a5bb77a9103e2d49f134c9578
> change-id: 20251230-arm64-dts-rockchip-rk3588-npu-enablements-1e2830d2e7b0
>
> Best regards,
> --
> Ricardo Pardini <ricardo@pardini.net>
>
>
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip

Re: [PATCH 0/3] arm64: dts: rockchip: Enable the NPU on some rk3588 boards

[Ricardo Pardini]

Hi Jimmy,

>> This series enables the NPU on a few Rockchip rk3588 boards.
>> In every case here, the required regulator was already described.

> Now that the pd_npu has defined the dependency to the vdd_npu_s0,
> shouldn't the regulator-always-on be removed from the regulator? When
> the Rock5B enabled the NPU, it didn't define the regulator with always
> on. [1]
> 
> More specifically, the commit message for the introduction of the
> pd_npu label mentions how the regulator no longer needs to be always
> on. [2]
> 
> [1] https://lore.kernel.org/linux-rockchip/20250721-6-10-rocket-v9-10-77ebd484941e@tomeuvizoso.net/
> [2] https://lore.kernel.org/linux-rockchip/20250721-6-10-rocket-v9-7-77ebd484941e@tomeuvizoso.net/
Nice, I overlooked that. I'll send a v2 removing `regulator-always-on;` 
from the regulator.

And maybe a separate series removing it from the the other NPU-enabled 
boards that still have it?

Thanks,
Ricardo