| Message ID | 20240503153422.1958812-1-sean.anderson@linux.dev (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: zynqmp: Add coresight cpu debug support | expand |
On 5/3/24 17:34, Sean Anderson wrote: > Add coresight debug support to the device tree. This can be useful when > panicking, especially when a core is hung in EL3. > > Signed-off-by: Sean Anderson <sean.anderson@linux.dev> > --- > > .../arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi | 16 +++++++++++ > arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 28 +++++++++++++++++++ > 2 files changed, 44 insertions(+) > > diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi > index dd4569e7bd95..60d1b1acf9a0 100644 > --- a/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi > +++ b/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi > @@ -70,6 +70,22 @@ &cpu0 { > clocks = <&zynqmp_clk ACPU>; > }; > > +&cpu0_debug { > + clocks = <&zynqmp_clk DBF_FPD>; > +}; > + > +&cpu1_debug { > + clocks = <&zynqmp_clk DBF_FPD>; > +}; > + > +&cpu2_debug { > + clocks = <&zynqmp_clk DBF_FPD>; > +}; > + > +&cpu3_debug { > + clocks = <&zynqmp_clk DBF_FPD>; > +}; > + > &fpd_dma_chan1 { > clocks = <&zynqmp_clk GDMA_REF>, <&zynqmp_clk LPD_LSBUS>; > }; > diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi > index 25d20d803230..ec8d5d19ac1c 100644 > --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi > +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi > @@ -330,6 +330,34 @@ pmu@9000 { > }; > }; > > + cpu0_debug: debug@fec10000 { > + compatible = "arm,coresight-cpu-debug", "arm,primecell"; > + reg = <0x0 0xfec10000 0x0 0x1000>; > + clock-names = "apb_pclk"; > + cpu = <&cpu0>; > + }; > + > + cpu1_debug: debug@fed10000 { > + compatible = "arm,coresight-cpu-debug", "arm,primecell"; > + reg = <0x0 0xfed10000 0x0 0x1000>; > + clock-names = "apb_pclk"; > + cpu = <&cpu1>; > + }; > + > + cpu2_debug: debug@fee10000 { > + compatible = "arm,coresight-cpu-debug", "arm,primecell"; > + reg = <0x0 0xfee10000 0x0 0x1000>; > + clock-names = "apb_pclk"; > + cpu = <&cpu2>; > + }; > + > + cpu3_debug: debug@fef10000 { > + compatible = "arm,coresight-cpu-debug", "arm,primecell"; > + reg = <0x0 0xfef10000 0x0 0x1000>; > + clock-names = "apb_pclk"; > + cpu = <&cpu3>; > + }; > + > /* GDMA */ > fpd_dma_chan1: dma-controller@fd500000 { > status = "disabled"; Applied. M
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi index dd4569e7bd95..60d1b1acf9a0 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi +++ b/arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi @@ -70,6 +70,22 @@ &cpu0 { clocks = <&zynqmp_clk ACPU>; }; +&cpu0_debug { + clocks = <&zynqmp_clk DBF_FPD>; +}; + +&cpu1_debug { + clocks = <&zynqmp_clk DBF_FPD>; +}; + +&cpu2_debug { + clocks = <&zynqmp_clk DBF_FPD>; +}; + +&cpu3_debug { + clocks = <&zynqmp_clk DBF_FPD>; +}; + &fpd_dma_chan1 { clocks = <&zynqmp_clk GDMA_REF>, <&zynqmp_clk LPD_LSBUS>; }; diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi index 25d20d803230..ec8d5d19ac1c 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi @@ -330,6 +330,34 @@ pmu@9000 { }; }; + cpu0_debug: debug@fec10000 { + compatible = "arm,coresight-cpu-debug", "arm,primecell"; + reg = <0x0 0xfec10000 0x0 0x1000>; + clock-names = "apb_pclk"; + cpu = <&cpu0>; + }; + + cpu1_debug: debug@fed10000 { + compatible = "arm,coresight-cpu-debug", "arm,primecell"; + reg = <0x0 0xfed10000 0x0 0x1000>; + clock-names = "apb_pclk"; + cpu = <&cpu1>; + }; + + cpu2_debug: debug@fee10000 { + compatible = "arm,coresight-cpu-debug", "arm,primecell"; + reg = <0x0 0xfee10000 0x0 0x1000>; + clock-names = "apb_pclk"; + cpu = <&cpu2>; + }; + + cpu3_debug: debug@fef10000 { + compatible = "arm,coresight-cpu-debug", "arm,primecell"; + reg = <0x0 0xfef10000 0x0 0x1000>; + clock-names = "apb_pclk"; + cpu = <&cpu3>; + }; + /* GDMA */ fpd_dma_chan1: dma-controller@fd500000 { status = "disabled";
Add coresight debug support to the device tree. This can be useful when panicking, especially when a core is hung in EL3. Signed-off-by: Sean Anderson <sean.anderson@linux.dev> --- .../arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi | 16 +++++++++++ arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 28 +++++++++++++++++++ 2 files changed, 44 insertions(+)