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From: shawn.guo@freescale.com (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3] ARM: smp_scu: enable SCU standby support
Date: Thu, 24 Jul 2014 16:49:46 +0800	[thread overview]
Message-ID: <20140724084945.GB8821@dragon> (raw)
In-Reply-To: <20140723164521.GF20966@arm.com>

On Wed, Jul 23, 2014 at 05:45:21PM +0100, Catalin Marinas wrote:
> On Wed, Jul 23, 2014 at 05:50:57AM +0100, Shawn Guo wrote:
> > On Tue, Jul 22, 2014 at 05:13:31PM +0100, Catalin Marinas wrote:
> > > And we don't know the behaviour of setting this bit on such A9 early
> > > revisions. So we can try to (1) find out if there are any in the field,
> > > (2) read the RTL to see if anything happens or (3) add a check in Linux
> > > for such revisions. I think (3) should be the case but you need to figure
> > > out which revisions these are.
> > 
> > Can I ask the favor from you ARM folks on that, since I cannot figure
> > it out from any public information?
> 
> Looking through some of the older A9 TRMs, it seems that this bit was
> added in r2p0. Whether it works as advertised on the relevant SoCs I
> can't tell.

Thanks for checking, Catalin.

Shawn

  reply	other threads:[~2014-07-24  8:49 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-21  7:45 [PATCH 0/3] Enable SCU standby support at core level Shawn Guo
2014-07-21  7:45 ` [PATCH 1/3] ARM: smp_scu: use macro for SCU enable bit Shawn Guo
2014-07-21  7:45 ` [PATCH 2/3] ARM: smp_scu: enable SCU standby support Shawn Guo
2014-07-21  8:51   ` Will Deacon
2014-07-21  9:27     ` Shawn Guo
2014-07-21  9:44       ` Will Deacon
2014-07-22  1:56         ` Shawn Guo
2014-07-21 10:26       ` Catalin Marinas
2014-07-22  2:09         ` Shawn Guo
2014-07-22 16:13           ` Catalin Marinas
2014-07-23  4:50             ` Shawn Guo
2014-07-23 16:45               ` Catalin Marinas
2014-07-24  8:49                 ` Shawn Guo [this message]
2014-07-21  7:45 ` [PATCH 3/3] ARM: imx: remove SCU standby enable code Shawn Guo

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