[U-Boot] [PATCH] overo: add SPL support

[Steve Sakoman]

On Tue, Dec 20, 2011 at 4:20 AM, Igor Grinberg <grinberg at compulab.co.il>wrote:


> What about forging some very not optimized default DRAM settings,
> that suit any assembled DRAM and then when you have I2C access,
> reconfigure it - is it possible?
>

The board ID is used to determine some fairly fundamental things like how
the address bits are multiplexed, bank size, number of banks, and timing.

Perhaps it might be possible to determine some non-optimal settings that
can work with the current set of POP memories used, and also a scheme to
modify the above on the fly while executing from said ram, but then one
would have to revisit this every time a new vendor/type of POP was used.

That seems a lot more complex than the current method.

I suppose we could just drop support for the old boards in u-boot.  Those
folks could continue to use the current x-load solution.  Or perhaps
someone will come up with a more clever idea!

Steve