[U-Boot] PPC440GX: DDR ECC init time.

[Stefan Roese]

Hi Felix,

On Tuesday 08 September 2009 11:19:41 Felix Radensky wrote:
> Not exactly related to the subject under discussion, but I thought I'd
> mention it.
> 
> I had problems with ecc_init() on a custom 460EX board with soldered DDR2.
> Right after ecc_init() u-boot was crashing on PLB access. I've modified
> the code
> to use program_ecc_addr() instead of ecc_init(), and problem was solved.
> I was
> wandering why use two different ECC initialization routines for SPD and
> soldered
> cases, when program_ecc_addr() can do the job in both cases, while
> ecc_init()
> apparently has issues ?

Most likely historic reasons. I added Grant Erickson to Cc, IIRC he 
added/tested this ecc_init() code. Maybe he can shed some more light into 
this.

But from looking at it, it seems to me that we should get rid of one of those 
routines. program_ecc_addr() seems more generic to me. Patches welcome. ;)

Thanks.

Cheers,
Stefan

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