[U-Boot] Booting Jerry chromebook from eMMC

Hi, I'm trying to boot a Veyron Jerry chromebook using U-Boot placed in the eMMC. Booting from SPI using 'chromebook_jerry_defconfig' works perfectly fine, but I'm hitting a wall when moving from SPI to eMMC (mostly related to the limited space for the SPL).

Has anyone managed to boot this platform directly from eMMC? Reading sources and documentation there is explicitly nothing related to boot this platform from eMMC so I was wondering if this is feasible at all.

Thank you,