From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: socfpga: dm: Fix DM initialization failure after warm reset
Date: Thu, 3 Sep 2015 12:46:15 +0200 [thread overview]
Message-ID: <201509031246.15600.marex@denx.de> (raw)
In-Reply-To: <55E81E29.6060504@boschrexroth.de>
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 clear
> >>
> >> the 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
next prev parent reply other threads:[~2015-09-03 10:46 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-28 8:41 [U-Boot] [PATCH] arm: socfpga: dm: Fix DM initialization failure after warm reset Jian Luo
2015-08-28 9:24 ` Marek Vasut
2015-08-28 10:27 ` Jian Luo
2015-08-28 10:30 ` Marek Vasut
2015-08-28 11:40 ` Jian Luo
2015-08-28 12:01 ` Marek Vasut
2015-08-28 12:09 ` Jian Luo
2015-08-28 21:48 ` Marek Vasut
2015-08-31 13:00 ` Jian Luo
2015-08-31 13:28 ` Marek Vasut
2015-09-02 16:27 ` Jian Luo
2015-09-03 9:41 ` Marek Vasut
2015-09-03 10:03 ` Jian Luo
2015-09-03 10:09 ` Marek Vasut
2015-09-03 10:17 ` Jian Luo
2015-09-03 10:46 ` Marek Vasut [this message]
2015-09-03 11:12 ` Jian Luo
2015-09-03 11:14 ` Marek Vasut
2015-09-04 0:23 ` Simon Glass
2015-09-04 7:36 ` Jian Luo
2015-09-04 14:16 ` Simon Glass
2015-09-04 14:25 ` Marek Vasut
2015-09-04 14:26 ` Simon Glass
2015-09-04 14:32 ` Marek Vasut
2015-09-22 12:26 ` Jian Luo
2015-08-28 23:21 ` Simon Glass
2015-08-29 7:56 ` Marek Vasut
2015-08-29 14:39 ` Simon Glass
2015-08-29 14:46 ` Marek Vasut
2015-08-29 14:49 ` Simon Glass
2015-08-29 15:45 ` Marek Vasut
2015-08-29 16:54 ` Simon Glass
2015-08-29 19:19 ` Marek Vasut
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