[U-Boot] [PATCH 4/6] fsl_esdhc: Add device tree fixups

[Anton Vorontsov]

On Thu, Apr 30, 2009 at 02:59:37PM -0500, Kim Phillips wrote:
> On Thu, 30 Apr 2009 23:35:34 +0400
> Anton Vorontsov <avorontsov at ru.mvista.com> wrote:
> 
> > What if there is some errata in 8377 chip (with 1.0 revision), and
> > not in 8378 chip (also 1.0 revision)?
> 
> I believe they are in fact the same chip, just with different fuses
> blown.

Sure, that was just a what-if, an imaginary example.

> > IMO <chip> prefix is more specific than a block revision.
> 
> It's a waste IMO.  H/w designers do just like us; they copy-n-paste IP
> blocks into chips.

Sometimes errors happen even during copy-paste procedure. Or
for example HW designers have made some minor (they thought) change,
and didn't bother to bump the revision. Later we observe that the
change is the cause of some errata, but we can't deal with it
because device-tree isn't specific enough.

Of course this is just my imagination, but theoretically possible?

Thanks,

-- 
Anton Vorontsov
email: cbouatmailru at gmail.com
irc://irc.freenode.net/bd2