[RESEND PATCH 2/2] arm64: dts: rockchip: add Coresight debug range for RK3399

Brian Norris briannorris at chromium.org
Tue Sep 7 09:46:37 PDT 2021


Per Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt.

This IP block can be used for sampling the PC of any given CPU, which is
useful in certain panic scenarios where you can't get the CPU to stop
cleanly (e.g., hard lockup).

Signed-off-by: Brian Norris <briannorris at chromium.org>
---

 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 48 ++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 3871c7fd83b0..c8c62637b600 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -433,6 +433,54 @@ usbdrd_dwc3_1: usb at fe900000 {
 		};
 	};
 
+	debug at fe430000 {
+		compatible = "arm,coresight-cpu-debug", "arm,primecell";
+		reg = <0 0xfe430000 0 0x1000>;
+		clocks = <&cru PCLK_COREDBG_L>;
+		clock-names = "apb_pclk";
+		cpu = <&cpu_l0>;
+	};
+
+	debug at fe432000 {
+		compatible = "arm,coresight-cpu-debug", "arm,primecell";
+		reg = <0 0xfe432000 0 0x1000>;
+		clocks = <&cru PCLK_COREDBG_L>;
+		clock-names = "apb_pclk";
+		cpu = <&cpu_l1>;
+	};
+
+	debug at fe434000 {
+		compatible = "arm,coresight-cpu-debug", "arm,primecell";
+		reg = <0 0xfe434000 0 0x1000>;
+		clocks = <&cru PCLK_COREDBG_L>;
+		clock-names = "apb_pclk";
+		cpu = <&cpu_l2>;
+	};
+
+	debug at fe436000 {
+		compatible = "arm,coresight-cpu-debug", "arm,primecell";
+		reg = <0 0xfe436000 0 0x1000>;
+		clocks = <&cru PCLK_COREDBG_L>;
+		clock-names = "apb_pclk";
+		cpu = <&cpu_l3>;
+	};
+
+	debug at fe610000 {
+		compatible = "arm,coresight-cpu-debug", "arm,primecell";
+		reg = <0 0xfe610000 0 0x1000>;
+		clocks = <&cru PCLK_COREDBG_B>;
+		clock-names = "apb_pclk";
+		cpu = <&cpu_b0>;
+	};
+
+	debug at fe710000 {
+		compatible = "arm,coresight-cpu-debug", "arm,primecell";
+		reg = <0 0xfe710000 0 0x1000>;
+		clocks = <&cru PCLK_COREDBG_B>;
+		clock-names = "apb_pclk";
+		cpu = <&cpu_b1>;
+	};
+
 	cdn_dp: dp at fec00000 {
 		compatible = "rockchip,rk3399-cdn-dp";
 		reg = <0x0 0xfec00000 0x0 0x100000>;
-- 
2.33.0.153.gba50c8fa24-goog




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