[U-Boot] [PATCH v2 2/4] aspeed: Add basic ast2500 specific drivers and configuration

Tom Rini trini at konsulko.com
Wed Jan 11 04:20:11 CET 2017


On Mon, Jan 09, 2017 at 05:50:38PM -0800, Maxim Sloyko wrote:

> Clock Driver
> 
> This driver is ast2500 specific and is not compatible with earlier
> versions of this chip. The differences are not that big, but they are
> in somewhat random places, so making it compatible with ast2400 is not
> worth the effort at the moment.
> 
> SDRAM MC driver
> 
> The driver is very ast2500 specific and is completely incompatible
> with previous versions of the chip.
> 
> The memory controller is very poorly documented by Aspeed in the
> datasheet, with any mention of the whole range of registers missing. The
> initialization procedure has been basically taken from Aspeed SDK, where
> it is implemented in assembly and rewritten in C, with very limited
> understanding of what exacly it is doing.
> 

Reviewed-by: Tom Rini <trini at konsulko.com>

-- 
Tom
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