CONFIG_SYS_MMC_ENV_PART=1
Valid values for this parameter are 1 for BOOT0 and 2 for BOOT1.
Please never use partition number 0 here!
- The eMMC has 2 boot partitions (BOOT0 and BOOT1) and a user data partition (DATA).
- The boot partitions are numbered as partition 1 and 2 in MMC driver.
- Number 0 is used for user data partition and should not be utilized for storing
- boot images and U-Boot environment in RAW mode since it will break file system
- structures usually located here.
- The default boot partition is BOOT0. It is selected by the following parameter:
- CONFIG_SYS_MMC_ENV_PART=1
- Valid values for this parameter are 1 for BOOT0 and 2 for BOOT1.
- Please never use partition number 0 here!
- The partition number is ignored if the target device is SD card.
- The boot image offset starts at block 0 for eMMC and block 1 for SD devices.
The block 0 on SD devices is left for MBR storage.