Please read section 26.1.7.5.2 of the AM335X Technical Reference Manual Rev. K. Booting from eMMC devices with size 4GB or greater is supported only on MMC1.
Please read section 26.1.7.5.2 of the AM335X Technical Reference Manual Rev. K. Booting from eMMC devices with size 4GB or greater is supported only on MMC1.