# short-description: Create an image for eMMC # long-description: Creates an eMMC card image for the User Data Area that can # be used with the Aspeed SoC family. # # Assumes a minimum flash size of 16GB. # Assumes U-Boot is stored elsewhere, such as an eMMC boot volume or NOR flash. # # --- - ----- -------- -------- -------- -------- ------ -------- ------- # |GPT| | env | boot-a | boot-b | rofs-a | rofs-b | rwfs | hostfw |GPT-sec| # --- - ----- -------- -------- -------- -------- ------ -------- ------- # ^ 1MB 64MB 64MB 1GB 1GB 7GB 5GB # | # 0x5000 # # Primary GPT size (Beginning of image): # 512B (Protective MBR) + 512B (Primary Header) + 16KB (Primary Table) # First partition (u-boot-env) is 4K-aligned, which puts it at offset 0x5000 # # Secondary GPT size (End of image): # 16KB (Secondary Table) + 512B (Secondary Header) bootloader --ptable gpt part --align 4 --fixed-size 1M --source rawcopy --sourceparams="file=${DEPLOY_DIR_IMAGE}/u-boot-env.bin" part --fstype=ext4 --fixed-size 64M --source bootimg-partition --label boot-a part --fstype=ext4 --fixed-size 64M --source bootimg-partition --label boot-b part --fstype=ext4 --fixed-size 1G --source rootfs --label rofs-a part --fstype=ext4 --fixed-size 1G --source rootfs --label rofs-b part --fstype=ext4 --fixed-size 7G --label rwfs part --fstype=ext4 --fixed-size ${WKS_HOSTFW_SIZE} --source rootfs --rootfs-dir=${DEPLOY_DIR_IMAGE}/hostfw/image/ --label hostfw