Re: [microblaze-uclinux] U-boot in Bram

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi A.,

A. Bose wrote:

> I was trying to put uboot-s.elf into BRAM in EDK and got this error:

This is almost impossible.  Only the very largest Virtex devices have 
sufficient on-chip BRAM to host u-boot.  u-boot requires on the order of 
128K, which is why we default to locating it at the top of external 
(DDR/SDRAM) memory.

The supported setup is

1. FSBOOT runs from BRAM on boot, which

2. launches the self-relocation u-boot-s.bin from flash, which

3. copies and launches the image.ub  kernel image

Many other options are possible, such as by-passing u-boot completely. 
However, u-boot in BRAM really isn't one of them.

Regards,

John


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