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COOLING4d

Revision v2 of 2 in this series.

Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 4/7] arm64: dts: rockchip: add DFI node to RK3576

From: Sebastian Reichel <hidden>
Date: 2026-09-21 21:15:08
Also in: linux-clk, linux-devicetree, linux-pm, linux-rockchip, lkml
Subsystem: the rest · Maintainer: Linus Torvalds

From: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>

Like previous Rockchip SoCs RK3576 has DFI hardware to measure DDR
bandwidth utilisation. Add the node for it to the SoC's DT.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Signed-off-by: Sebastian Reichel <redacted>
---
 arch/arm64/boot/dts/rockchip/rk3576.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3576.dtsi b/arch/arm64/boot/dts/rockchip/rk3576.dtsi
index b0c0d3c8b1b1..197b8c3b76b4 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3576.dtsi
@@ -1832,6 +1832,17 @@ qos_npu_m1ro: qos@27f22100 {
 			reg = <0x0 0x27f22100 0x0 0x20>;
 		};
 
+		dfi: dfi@2a000000 {
+			compatible = "rockchip,rk3576-dfi";
+			reg = <0x0 0x2a000000 0x0 0x20000>;
+			clocks = <&cru PCLK_DDR_MON_CH0>,
+				 <&cru PCLK_DDR_MON_CH1>;
+			clock-names = "pclk_ddr_mon_ch0", "pclk_ddr_mon_ch1";
+			interrupts = <GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 233 IRQ_TYPE_LEVEL_HIGH>;
+			rockchip,pmu = <&pmu1_grf>;
+		};
+
 		gmac0: ethernet@2a220000 {
 			compatible = "rockchip,rk3576-gmac", "snps,dwmac-4.20a";
 			reg = <0x0 0x2a220000 0x0 0x10000>;
-- 
2.53.0

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