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Altera_Forum's avatar
Altera_Forum
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10 years ago

hps boot from fpga

I read the pages mentioned that boot from sd card and qspi is relatively about the same file structure, but if boot from fgpa, it is only able to place the uboot in the fpga and the rest of the boot ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

It is not possible to place uboot in the FPGA. It is to big. There is only 64kB available for software in the FPGA.

It is only possible to put a preloader in the FPGA. A preloader is a tiny program that configures clocks, SDRAM, etc and the loads uboot from SD, QSPI, etc.

There are two common preloader available: SPL and MPL. SPL is part of uboot distribution, but compiles as a separate binary.

MPL is from Altera.