[PATCHv2 1/2] dt-bindings: arm: altera: document the Agilex27 platform

[PATCHv2 1/2] dt-bindings: arm: altera: document the Agilex27 platform

[Dinh Nguyen]

The Altera SoCFGPA Agilex72 platform will be rebranded as the Agilex27.

Add the "altr,socfpga-agilex27" and "altr,socfpga-agilex27-socdk" bindings
for the SoCFPGA Agilex27 platform.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
---
v2: do not deprecate the agilex72 platform
---
 Documentation/devicetree/bindings/arm/altera.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/altera.yaml b/Documentation/devicetree/bindings/arm/altera.yaml
index 5fce1161210e7..f7058f00975c6 100644
--- a/Documentation/devicetree/bindings/arm/altera.yaml
+++ b/Documentation/devicetree/bindings/arm/altera.yaml
@@ -99,6 +99,12 @@ properties:
               - intel,socfpga-agilex-socdk-emmc
           - const: intel,socfpga-agilex
 
+      - description: Agilex27 boards
+        items:
+          - enum:
+              - altr,socfpga-agilex27-socdk
+          - const: altr,socfpga-agilex27
+
       - description: Agilex3 boards
         items:
           - enum:
-- 
2.42.0.411.g813d9a9188

[PATCHv2 2/2] arm64: dts: altera: Add support for the Agilex27 platform

[Dinh Nguyen]

The Agilex72 platform is being rebranded to Agilex27. The Agilex27 is
exactly the same as the Agilex72. Add the base DTSI and the devkit's
DTS.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
---
v2: leave the agilex72 files
---
 arch/arm64/boot/dts/altera/Makefile           |   1 +
 .../boot/dts/altera/socfpga_agilex27.dtsi     | 156 ++++++++++++++++++
 .../dts/altera/socfpga_agilex27_socdk.dts     |  27 +++
 3 files changed, 184 insertions(+)
 create mode 100644 arch/arm64/boot/dts/altera/socfpga_agilex27.dtsi
 create mode 100644 arch/arm64/boot/dts/altera/socfpga_agilex27_socdk.dts

diff --git a/arch/arm64/boot/dts/altera/Makefile b/arch/arm64/boot/dts/altera/Makefile
index 8f41349103b80..14e260fb16f3b 100644
--- a/arch/arm64/boot/dts/altera/Makefile
+++ b/arch/arm64/boot/dts/altera/Makefile
@@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \
 				socfpga_agilex_socdk.dtb \
 				socfpga_agilex_socdk_emmc.dtb \
 				socfpga_agilex_socdk_nand.dtb \
+				socfpga_agilex27_socdk.dtb \
 				socfpga_agilex3_socdk.dtb \
 				socfpga_agilex5_socdk.dtb \
 				socfpga_agilex5_socdk_013b.dtb \
diff --git a/arch/arm64/boot/dts/altera/socfpga_agilex27.dtsi b/arch/arm64/boot/dts/altera/socfpga_agilex27.dtsi
new file mode 100644
index 0000000000000..369981fe85e38
--- /dev/null
+++ b/arch/arm64/boot/dts/altera/socfpga_agilex27.dtsi
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2026, Altera Corporation
+ */
+/dts-v1/;
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "altr,socfpga-agilex27";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		atf_reserved: atf@80000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x0 0x80000000 0x0 0x100000>;
+			alignment = <0x1000>;
+			no-map;
+		};
+
+		service_reserved: svcbuffer@80100000 {
+			compatible = "shared-dma-pool";
+			reg = <0x0 0x80100000 0x0 0xf00000>;
+			alignment = <0x1000>;
+			no-map;
+		};
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			compatible = "arm,cortex-a520";
+			device_type = "cpu";
+			enable-method = "psci";
+			reg = <0x0>;
+		};
+
+		cpu1: cpu@100 {
+			compatible = "arm,cortex-a520";
+			device_type = "cpu";
+			enable-method = "psci";
+			reg = <0x100>;
+		};
+
+		cpu2: cpu@200 {
+			compatible = "arm,cortex-a720";
+			device_type = "cpu";
+			enable-method = "psci";
+			reg = <0x200>;
+		};
+
+		cpu3: cpu@300 {
+			compatible = "arm,cortex-a720";
+			device_type = "cpu";
+			enable-method = "psci";
+			reg = <0x300>;
+		};
+	};
+
+	clocks {
+		uart_clk: uart-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <125000000>;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&intc>;
+		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>;
+	};
+
+	intc: interrupt-controller@7000000 {
+		compatible = "arm,gic-v3";
+		reg = <0x0 0x7000000 0x0 0x10000>,
+		      <0x0 0x7080000 0x0 0x100000>;
+		ranges;
+		#interrupt-cells = <3>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		interrupt-controller;
+		#redistributor-regions = <1>;
+		redistributor-stride = <0x0 0x40000>;
+
+		its: msi-controller@7040000 {
+			compatible = "arm,gic-v3-its";
+			reg = <0x0 0x7040000 0x0 0x20000>;
+			msi-controller;
+			#msi-cells = <1>;
+		};
+	};
+
+	soc: soc@0 {
+		compatible = "simple-bus";
+		ranges = <0 0 0 0xffffffff>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		device_type = "soc";
+		interrupt-parent = <&intc>;
+
+		smmu: iommu@c100000 {
+			compatible = "arm,smmu-v3";
+			reg = <0x0c100000 0x30000>;
+			interrupts = <GIC_SPI 134 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 129 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 132 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "eventq", "gerror", "priq";
+			dma-coherent;
+			#iommu-cells = <1>;
+		};
+
+		ocram: sram@0 {
+			compatible = "mmio-sram";
+			reg = <0x00000000 0x80000>;
+			ranges = <0 0 0x80000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
+		uart0: serial@9038000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x9038000 0x100>;
+			interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&uart_clk>;
+			status = "disabled";
+		};
+
+		uart1: serial@9039000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x9039000 0x100>;
+			interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&uart_clk>;
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/altera/socfpga_agilex27_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_agilex27_socdk.dts
new file mode 100644
index 0000000000000..15d331cdeeb47
--- /dev/null
+++ b/arch/arm64/boot/dts/altera/socfpga_agilex27_socdk.dts
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2026, Altera Corporation
+ */
+#include "socfpga_agilex27.dtsi"
+
+/ {
+	model = "Altera SoCFPGA Agilex27 SoCDK";
+	compatible = "altr,socfpga-agilex27-socdk", "altr,socfpga-agilex27";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x80000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.42.0.411.g813d9a9188

Re: [PATCHv2 1/2] dt-bindings: arm: altera: document the Agilex27 platform

[Krzysztof Kozlowski]

On 15/10/2026 14:36, Dinh Nguyen wrote:
> The Altera SoCFGPA Agilex72 platform will be rebranded as the Agilex27.
> 
> Add the "altr,socfpga-agilex27" and "altr,socfpga-agilex27-socdk" bindings
> for the SoCFPGA Agilex27 platform.
> 
> Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
> ---
> v2: do not deprecate the agilex72 platform
> ---

Again, no. Your rebranding does not matter. We do not add compatibles
for the same device. We do not rename them. We do not deprecate them
because you want to rebrand something.

Whatever marketing company does, it does not matter for the compatibles.

NAK

Best regards,
Krzysztof

Re: [PATCHv2 2/2] arm64: dts: altera: Add support for the Agilex27 platform

[Krzysztof Kozlowski]

On 15/10/2026 14:37, Dinh Nguyen wrote:
> The Agilex72 platform is being rebranded to Agilex27. The Agilex27 is
> exactly the same as the Agilex72. Add the base DTSI and the devkit's
> DTS.
> 
> Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
> ---
> v2: leave the agilex72 files
> ---
>  arch/arm64/boot/dts/altera/Makefile           |   1 +
>  .../boot/dts/altera/socfpga_agilex27.dtsi     | 156 ++++++++++++++++++
>  .../dts/altera/socfpga_agilex27_socdk.dts     |  27 +++
>  3 files changed, 184 insertions(+)


This makes no sense, you have now two SAME boards. We do not do such
dances in Linux kernel.

Best regards,
Krzysztof