Yes I am using the 440EP. I was referring to all the code in cpu/ppc4xx/commproc.c, like this section:

#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) void post_word_store (ulong a) { volatile void *save_addr = (volatile void *)(CFG_OCM_DATA_ADDR + CFG_POST_WORD_ADDR); *(volatile ulong *) save_addr = a; }

ulong post_word_load (void) { volatile void *save_addr = (volatile void *)(CFG_OCM_DATA_ADDR + CFG_POST_WORD_ADDR); return *(volatile ulong *) save_addr; }

There are a few more functions in there that refer to the OCM. What/where is the unused GPT that you are talking about?

Thanks Craig

-----Original Message----- From: Stefan Roese [mailto:sr@denx.de] Sent: Friday, December 14, 2007 4:04 PM To: u-boot-users@lists.sourceforge.net Cc: Craig Millen Subject: Re: [U-Boot-Users] POST tests without OCM

Hi Craig,

On Friday 14 December 2007, Craig Millen wrote:

I am trying to incorporate some of the POST tests into my u-boot, but I do not have any on-chip-memory (OCM). A lot of the code appears to use OCM for storage of data/testing. Has anyone achieved this by using the cache or any other means?

We are thinking about moving this POST_WORD from OCM to an unused GPT (General Purpose Timer) register. You *are* talking about the 440EP, right? This should be possible here too.

Patches are as always welcome. :)

Best regards, Stefan

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