From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Nicolas Pitre <nico@fluxnic.net>
Cc: Daniel Walker <dwalker@codeaurora.org>,
linux-arm-msm@vger.kernel.org,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
Jeremy Kerr <jeremy.kerr@canonical.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Jason Wang <jason77.wang@gmail.com>,
Tony Lindgren <tony@atomide.com>
Subject: Re: [PATCH] msm: fix debug-macro.S build failure
Date: Thu, 28 Oct 2010 19:28:51 +0100 [thread overview]
Message-ID: <20101028182851.GI3122@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <alpine.LFD.2.00.1010281422190.3227@xanadu.home>
On Thu, Oct 28, 2010 at 02:24:33PM -0400, Nicolas Pitre wrote:
> On Thu, 28 Oct 2010, Daniel Walker wrote:
>
> > This is what the function currently has,
> >
> > .macro addruart, rp, rv
> > ldr \rp, =MSM_DEBUG_UART_PHYS
> > ldr \rv, =MSM_DEBUG_UART_BASE
> > .endm
> >
> > So if we have a MSM_DEBUG_UART_PHYS and MSM_DEBUG_UART_BASE we're
> > returning it. We don't actually have those values for all the boards
> > tho. My understanding was that there are some generic arm changes
> > needed, but I need to confirm that.
>
> Just return 0 in both registers when you have nothing better to return.
That's not a good idea - it'll cause 512MB of 1:1 mappings to be setup
at virtual location 0 using the IO flags, which may conflict on ARMv6+.
A better idea would be to return 0xfff00000, which'll cause it to only
populate the top-most 1MB.
next prev parent reply other threads:[~2010-10-28 18:29 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-27 21:58 [PATCH] msm: fix debug-macro.S build failure Daniel Walker
2010-10-27 22:14 ` Russell King - ARM Linux
2010-10-27 22:25 ` [PATCH -v2] " Daniel Walker
2010-10-28 2:30 ` [PATCH] " Nicolas Pitre
2010-10-28 16:30 ` Daniel Walker
2010-10-28 16:35 ` Russell King - ARM Linux
2010-10-28 16:41 ` Daniel Walker
2010-10-28 17:46 ` Russell King - ARM Linux
2010-10-28 18:00 ` Daniel Walker
2010-10-28 18:24 ` Nicolas Pitre
2010-10-28 18:27 ` Daniel Walker
2010-10-28 18:29 ` Russell King - ARM Linux
2010-10-28 18:46 ` Nicolas Pitre
2010-10-28 18:40 ` Nicolas Pitre
2010-10-28 18:28 ` Russell King - ARM Linux [this message]
2010-10-28 18:43 ` Nicolas Pitre
2010-10-28 18:46 ` Russell King - ARM Linux
2010-10-29 3:03 ` Nicolas Pitre
2010-10-29 21:17 ` Daniel Walker
2010-10-29 22:14 ` Russell King - ARM Linux
2010-10-29 22:21 ` Daniel Walker
2010-10-29 22:28 ` Russell King - ARM Linux
2010-10-29 23:06 ` [PATCH -v3] " Daniel Walker
2010-10-29 22:17 ` [PATCH] " Nicolas Pitre
2010-10-29 22:32 ` Daniel Walker
2010-10-29 22:53 ` Nicolas Pitre
2010-10-29 23:07 ` Daniel Walker
2010-11-05 21:31 ` David Brown
2010-10-28 22:36 ` Rohit Vaswani
2010-10-29 2:26 ` Nicolas Pitre
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