Add Agilex eMMC daughter card support

From: Ng Tze Yee <[email protected]>

The Agilex SoCDK supports interchangeable daughter cards for different storage configurations. This series adds support for the eMMC daughter card variant.

The eMMC daughter card is mutually exclusive with the default SDMMC daughter card as it occupies the same physical slot on the SoCDK. Therefore, a separate device tree is required to properly configure the system when using the eMMC variant.

This series:
- Documents the new compatible string for the eMMC daughter card
- Adds a new DTS file based on the existing NAND variant with eMMC- specific MMC controller configuration

Changes in v3:
- Update copyright from Altera to Intel
- Append "eMMC daughter board" to model string for clarity
- Fix ethernet-phy@0 to ethernet-phy@4 address socfpga_agilex_socdk_emmc.dts

Changes in v2:
- Add new compatible string for the eMMC daughter card in the binding file
- Fix space indentation in socfpga_agilex_socdk_emmc.dts
- Fix compatible string in socfpga_agilex_socdk_emmc.dts
- Rephase commit messages for clarity

Ng Tze Yee (2):
dt-bindings: intel: Add Agilex eMMC support
arm64: dts: socfpga: agilex: add emmc support

 .../bindings/arm/intel,socfpga.yaml           |   1 +
 arch/arm64/boot/dts/intel/Makefile            |   1 +
 .../dts/intel/socfpga_agilex_socdk_emmc.dts   | 105 ++++++++++++++++++
 3 files changed, 107 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts

2.25.1