3 Sep
2015
3 Sep
'15
12:46 p.m.
On Thursday, September 03, 2015 at 12:17:13 PM, Jian Luo wrote:
Hi!
[...]
Yes, I can. But U-Boot can still have problem with other Image which disables ECC. I found another post related to this problem https://lkml.org/lkml/2015/2/6/685 .
Quote: To initialize ECC, the OCRAM needs to enable ECC then clearthe entire
memory to zero before using it.Hi!
Oh, but that is a problem, since we're running from the OCRAM ourselves, thus we cannot clear the OCRAM. Maybe we should force-disable the ECC instead? But can we be sure that the corruption does not happen when you disable ECC ?
Yes, that will be a problem. It's also why I let the SYSMGR_ECC_OCRAM_EN bit intact in the patch.
OK, but what about turning the ECC off in the SPL, will that also introduce corruption or not ? That might be the right fix, no ?
Best regards, Marek Vasut