Add dedicated device tree support for eMMC configuration on the Agilex5
SoCDK board, providing an alternative to the default SD card setup.
Changes to socfpga_agilex5.dtsi:
-
- Configure always-on regulator for stable eMMC operation
New device tree files:
- socfpga_agilex5_socdk_emmc.dts: Main eMMC device tree configuration
* Configure for eMMC operation (no-sd, no-sdio, non-removable)
* Set 8-bit bus width and high speed capability
* Add timing parameters for legacy and SDR modes
* Configure voltage supplies for eMMC power and I/O
* Add fixed 1.8V regulator for eMMC I/O voltage supply
- socfpga_agilex5_socdk_emmc-u-boot.dtsi: U-Boot specific additions
* Include common Agilex5 U-Boot configurations
* Set SPL boot order with eMMC support
* Enable necessary peripherals for boot-time operation
Configuration files:
- configs/socfpga_agilex5_emmc_defconfig: eMMC-specific configuration
* Inherit from base Agilex5 configuration
* Disable GPIO regulator support (not needed for fixed eMMC setup)
* Set eMMC-specific device tree
Build system integration:
- Add socfpga_agilex5_socdk_emmc.dtb target to Makefile
Signed-off-by: Tanmay Kathpalia <tanmay.kathpalia@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
