[U-Boot] [ANNOUNCE] DATAFLASH DRIVER

[Mike Frysinger]

On Thursday 08 January 2009 03:21:24 Haavard Skinnemoen wrote:
> Ulf Samuelsson wrote:
> > 6) Support partitions for
> > 	bootstrap
> > 	environemnt
> > 	u-boot
> > 	kernel
> > 	filesystem
> >    in the boot dataflash.
> >    additional dataflash should have other partitions.
>
> We should add a partitioning layer on top of the current interface.
>
> And even better solution would be to introduce a common flash interface
> for NOR, NAND, SPI, etc. flash and add a partitioning layer on top of
> that.

rather than reinvent the wheel, just support redboot partitioning scheme.  but 
yeah, i dont think it makes much sense to add partitioning support to each 
flash layer and turn around and unify it all.  take the common layer approach 
first.

> > I have my own patches for the memory commands
> > to enable most of this but adding that to the
> > cmd_mem driver was not accepted.
>
> Yes, as you probably know, I for one think memory mapping of serial
> devices is a bad idea.

agreed here ... especially on systems that cant ...

> Also, caching sounds like something which comes dangerously close to
> crossing the line between "boot loader" and "operating system". I don't
> think it fits well into the current u-boot architecture.

agreed here
-mike
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