From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/3] mpc85xx: Add a board-specific restart hook
Date: Wed, 19 Oct 2011 21:31:32 -0400 [thread overview]
Message-ID: <201110192131.33536.vapier@gentoo.org> (raw)
In-Reply-To: <510974E8-A0C8-4E81-A034-B52F2AED12D0@boeing.com>
On Wednesday 19 October 2011 20:23:15 Moffett, Kyle D wrote:
> On Oct 19, 2011, at 20:15, Mike Frysinger wrote:
> > On Wednesday 19 October 2011 18:52:10 Moffett, Kyle D wrote:
> >> So U-Boot MUST NOT reset without negotiating, even if the current CPU
> >> has crashed, as that will cause the other (possibly perfectly
> >> operational) CPU to also crash.
> >
> > so why can't you have your do_reset() board hook negotiate with the other
> > CPU to reset the system ?
>
> That's what I originally implemented. The problem is the negotiation can
> take an unbounded amount of time to execute, so if it's run from the
> command line then it needs to be interruptible (EG: with Ctrl-C), which
> means it needs to be able to return an error.
what's wrong with an unbounded amount of time ? if the user wants it to
reset, then it should do so regardless of how long.
-mike
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next prev parent reply other threads:[~2011-10-20 1:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-18 23:41 [U-Boot] [PATCH 0/3] mpc85xx: HWW-1U-1A board support patches Kyle Moffett
2011-10-18 23:41 ` [U-Boot] [PATCH 1/3] mpc85xx: Add inline GPIO acessor functions Kyle Moffett
2011-10-19 3:19 ` Mike Frysinger
2011-10-19 13:51 ` Kumar Gala
2011-10-19 18:21 ` Moffett, Kyle D
2011-10-19 18:58 ` [U-Boot] [PATCH 2/3] " Kyle Moffett
2011-10-21 5:07 ` Kumar Gala
2011-10-18 23:41 ` [U-Boot] [PATCH 2/3] mpc85xx: Add a board-specific restart hook Kyle Moffett
2011-10-19 3:20 ` Mike Frysinger
2011-10-19 18:26 ` Moffett, Kyle D
2011-10-19 18:52 ` Mike Frysinger
2011-10-19 20:33 ` Wolfgang Denk
2011-10-19 20:35 ` Wolfgang Denk
2011-10-19 21:05 ` Moffett, Kyle D
2011-10-19 21:55 ` Mike Frysinger
2011-10-19 22:52 ` Moffett, Kyle D
2011-10-20 0:15 ` Mike Frysinger
2011-10-20 0:23 ` Moffett, Kyle D
2011-10-20 1:31 ` Mike Frysinger [this message]
2011-10-20 15:30 ` Wolfgang Denk
2011-10-20 14:02 ` Wolfgang Denk
2011-10-20 17:45 ` Moffett, Kyle D
2011-10-20 19:28 ` Wolfgang Denk
2011-10-18 23:41 ` [U-Boot] [PATCH 3/3] mpc85xx: Add board support for the eXMeritus HWW-1U-1A devices Kyle Moffett
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