[RFC PATCH v6 9/9] arm64: dts: rockchip: rk3576-rock-4d: enable NPU
Jiaxing Hu <[email protected]>
| Newsgroups | gmane.linux.drivers.devicetree,gmane.comp.video.dri.devel,gmane.linux.ports.arm.rockchip,gmane.linux.power-management.general,gmane.linux.ports.arm.kernel,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
Enable rknn_core_0 and its IOMMU on the Radxa ROCK 4D and supply the core from vdd_npu_s0. The supply is marked always-on because the NPU power domains are what gate the block here, and dropping the rail underneath them takes an async SError on the next power-on rather than a clean retry. Only rknn_core_0 is enabled: the driver binds one core per node and the second core is left to whoever can test it. Signed-off-by: Jiaxing Hu <[email protected]> --- 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