Hi Christopher,
> What is the CONFIG_SYS_TEXT_BASE variable and how can
> I figure out what it should be?
U-boot is typically stored in flash and one of the first things it does when
executed is relocate to ram. CONFIG_SYS_TEXT_BASE is the relocation
address. Typically, u-boot global data, heap and then stack is stored just
below this.
Since u-boot is used to load some other program like the kernel, you need the
u-boot relocation address to be out of the way of this. So, for the
boards I have seen (not arm), CONFIG_SYS_TEXT_BASE is set to the top of ram -
256KB, i.e. enough room for the u-boot image.
I am sure more experienced u-boot developers will correct me if I am wrong :)
Regards
Phil
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