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[PATCH v3 3/3] arm64: dts: hpe: Add HPE GSC SoC and DL340 Gen12 board DTS

nick.hawkins@hpe.com posted 3 patches 5 days, 21 hours ago
[PATCH v3 3/3] arm64: dts: hpe: Add HPE GSC SoC and DL340 Gen12 board DTS
Posted by nick.hawkins@hpe.com 5 days, 21 hours ago 
From: Nick Hawkins <nick.hawkins@hpe.com>

Add SoC-level DTSI for the HPE GSC ARM64 BMC SoC, covering the CPU
cluster, GIC v3 interrupt controller, ARM64 generic timer, and console
UART.

Add the board-level DTS for the HPE DL340 Gen12, which includes
gsc.dtsi and adds memory and chosen nodes.

Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com>
---
 arch/arm64/boot/dts/hpe/Makefile           |   2 +
 arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts |  18 ++++
 arch/arm64/boot/dts/hpe/gsc.dtsi           | 104 +++++++++++++++++++++
 3 files changed, 124 insertions(+)
 create mode 100644 arch/arm64/boot/dts/hpe/Makefile
 create mode 100644 arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts
 create mode 100644 arch/arm64/boot/dts/hpe/gsc.dtsi

diff --git a/arch/arm64/boot/dts/hpe/Makefile b/arch/arm64/boot/dts/hpe/Makefile
new file mode 100644
index 000000000000..6b547b8a8154
--- /dev/null
+++ b/arch/arm64/boot/dts/hpe/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+dtb-$(CONFIG_ARCH_HPE) += gsc-dl340gen12.dtb
diff --git a/arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts b/arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts
new file mode 100644
index 000000000000..42cfeac99029
--- /dev/null
+++ b/arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/dts-v1/;
+
+#include "gsc.dtsi"
+
+/ {
+	compatible = "hpe,gsc-dl340gen12", "hpe,gsc";
+	model = "HPE ProLiant DL340 Gen12";
+
+	chosen {
+		stdout-path = &uartc;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x40000000>;
+	};
+};
diff --git a/arch/arm64/boot/dts/hpe/gsc.dtsi b/arch/arm64/boot/dts/hpe/gsc.dtsi
new file mode 100644
index 000000000000..087688b089e9
--- /dev/null
+++ b/arch/arm64/boot/dts/hpe/gsc.dtsi
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for HPE GSC
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0xa0008048>;
+		};
+
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <1>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0xa0008048>;
+		};
+	};
+
+	osc: clock-33333333 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-output-names = "osc";
+		clock-frequency = <33333333>;
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gic>;
+	};
+
+	soc: soc@80000000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0x80000000 0x80000000>;
+		ranges;
+
+		gic: gic@ce000000 {
+			compatible = "arm,gic-v3";
+			#interrupt-cells = <3>;
+			#address-cells = <0>;
+			interrupt-controller;
+			redistributor-stride = <0x0 0x20000>;
+			#redistributor-regions = <1>;
+			reg = <0xce000000 0x10000>,
+			      <0xce060000 0x40000>,
+			      <0xce200000 0x40000>;
+		};
+
+		uarta: serial@c00000e0 {
+			compatible = "ns16550a";
+			reg = <0xc00000e0 0x8>;
+			interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&gic>;
+			clock-frequency = <1846153>;
+			reg-shift = <0>;
+		};
+
+		uartb: serial@c00000e8 {
+			compatible = "ns16550a";
+			reg = <0xc00000e8 0x8>;
+			interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&gic>;
+			clock-frequency = <1846153>;
+			reg-shift = <0>;
+		};
+
+		uartc: serial@c00000f0 {
+			compatible = "ns16550a";
+			reg = <0xc00000f0 0x8>;
+			interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&gic>;
+			clock-frequency = <1846153>;
+			reg-shift = <0>;
+		};
+
+		uarte: serial@c00003e0 {
+			compatible = "ns16550a";
+			reg = <0xc00003e0 0x8>;
+			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&gic>;
+			clock-frequency = <1846153>;
+			reg-shift = <0>;
+		};
+	};
+};
-- 
2.34.1
Re: [PATCH v3 3/3] arm64: dts: hpe: Add HPE GSC SoC and DL340 Gen12 board DTS
Posted by Krzysztof Kozlowski 5 days, 1 hour ago 
On Fri, Mar 27, 2026 at 12:44:45PM -0500, nick.hawkins@hpe.com wrote:
> From: Nick Hawkins <nick.hawkins@hpe.com>
> 
> Add SoC-level DTSI for the HPE GSC ARM64 BMC SoC, covering the CPU
> cluster, GIC v3 interrupt controller, ARM64 generic timer, and console
> UART.
> 
> Add the board-level DTS for the HPE DL340 Gen12, which includes
> gsc.dtsi and adds memory and chosen nodes.
> 
> Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com>
> ---

You miss fourth commit adding it to defconfig.

>  arch/arm64/boot/dts/hpe/Makefile           |   2 +
>  arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts |  18 ++++
>  arch/arm64/boot/dts/hpe/gsc.dtsi           | 104 +++++++++++++++++++++
>  3 files changed, 124 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/hpe/Makefile
>  create mode 100644 arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts
>  create mode 100644 arch/arm64/boot/dts/hpe/gsc.dtsi
> 
> diff --git a/arch/arm64/boot/dts/hpe/Makefile b/arch/arm64/boot/dts/hpe/Makefile
> new file mode 100644
> index 000000000000..6b547b8a8154
> --- /dev/null
> +++ b/arch/arm64/boot/dts/hpe/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +dtb-$(CONFIG_ARCH_HPE) += gsc-dl340gen12.dtb
> diff --git a/arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts b/arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts
> new file mode 100644
> index 000000000000..42cfeac99029
> --- /dev/null
> +++ b/arch/arm64/boot/dts/hpe/gsc-dl340gen12.dts
> @@ -0,0 +1,18 @@
> +// SPDX-License-Identifier: GPL-2.0-only

Keep consistent SPDX, so I guess "GPL-2.0" here.

> +/dts-v1/;
> +
> +#include "gsc.dtsi"
> +
> +/ {
> +	compatible = "hpe,gsc-dl340gen12", "hpe,gsc";
> +	model = "HPE ProLiant DL340 Gen12";
> +
> +	chosen {
> +		stdout-path = &uartc;
> +	};
> +
> +	memory@0 {
> +		device_type = "memory";
> +		reg = <0x00000000 0x40000000>;
> +	};
> +};
> diff --git a/arch/arm64/boot/dts/hpe/gsc.dtsi b/arch/arm64/boot/dts/hpe/gsc.dtsi
> new file mode 100644
> index 000000000000..087688b089e9
> --- /dev/null
> +++ b/arch/arm64/boot/dts/hpe/gsc.dtsi
> @@ -0,0 +1,104 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree file for HPE GSC
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +/ {
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +
> +	cpus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		cpu@0 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a53";
> +			reg = <0>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0 0xa0008048>;
> +		};
> +
> +		cpu@1 {
> +			device_type = "cpu";
> +			compatible = "arm,cortex-a53";
> +			reg = <1>;
> +			enable-method = "spin-table";
> +			cpu-release-addr = <0 0xa0008048>;
> +		};
> +	};
> +
> +	osc: clock-33333333 {
> +		compatible = "fixed-clock";
> +		#clock-cells = <0>;
> +		clock-output-names = "osc";
> +		clock-frequency = <33333333>;
> +	};
> +
> +	timer {

Same comment as last time. I see you ignored few more comments and never
responded to them, so I finish the review here.

Best regards,
Krzysztof

Patchew 2.1-devel-ea86937

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