dt-bindings: arm: altera: document the Agilex7-M devkit

The Agilex7-M is a rebranded version of the original Agilex SoC. The Agilex7-M SoC has the same core peripherals as the Agilex device.

This change is to document the Agilex7m devkit which has the Agilex7-M device. The Agilex7-M SoC supports DDR4, DDR5, LPDDR5, PCIE 5.0(x16), but not QSPI.

Also, now that Altera has separated from Intel, use the "altr" company prefix.

---
v2: use a specific binding, "altr,socfpga-agilex7m" for the Agilex7-M SoC

---
 Documentation/devicetree/bindings/arm/altera.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

index 13a3a9696821..550f484c06ff 100644
@@ -108,6 +108,12 @@ properties:
               - intel,socfpga-agilex5-socdk-nand
           - const: intel,socfpga-agilex5
 
+      - description: Agilex7m boards
+        items:
+          - enum:
+              - altr,socfpga-agilex7m-socdk
+          - const: altr,socfpga-agilex7m
+
       - description: SoCFPGA VT
         items:
           - const: altr,socfpga-vt

2.42.0.411.g813d9a9188

The Agilex7-M devkit contains an Agilex7M SoC, which is a newly branded version of the original Agilex SoC. The Agilex7M core peripherals are identical to the Agilex SoC.

We can re-use the socfpga_agilex.dtsi for this devkit. The Agilex7-M devkit supports PCIE 5.0(x16), DDR4, DDR5, LPDDR5 and does not have QSPI.

---
v2: use the updated "altr,socfpga-agilex7m" and
"altr,socfpga-agilex7m-socdk"

---
 arch/arm64/boot/dts/intel/Makefile            |   1 +
 .../boot/dts/intel/socfpga_agilex7m_socdk.dts | 104 ++++++++++++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex7m_socdk.dts

index 33fcc55d0cb9..088a03b89c99 100644
@@ -8,5 +8,6 @@ dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \
 				socfpga_agilex5_socdk_013b.dtb \
 				socfpga_agilex5_socdk_modular.dtb \
 				socfpga_agilex5_socdk_nand.dtb \
+				socfpga_agilex7m_socdk.dtb \
 				socfpga_n5x_socdk.dtb
 dtb-$(CONFIG_ARCH_KEEMBAY) += keembay-evm.dtb

2.42.0.411.g813d9a9188

pw-bot: not-applicable