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Message-ID: <c170bbf2-ac0a-4c55-b2a7-0215c7a79635@VA3EHSMHS032.ehs.local>
Date: Sun, 20 Feb 2011 17:18:14 -0700
From: John Linn <John.Linn@...inx.com>
To: Arnd Bergmann <arnd@...db.de>
CC: <linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <linux@....linux.org.uk>,
<catalin.marinas@....com>, <glikely@...retlab.ca>,
<jamie@...ieiles.com>
Subject: RE: [PATCH V4 3/4] ARM: Xilinx: base header files and assembly macros
> -----Original Message-----
> From: Arnd Bergmann [mailto:arnd@...db.de]
> Sent: Sunday, February 20, 2011 2:38 PM
> To: John Linn
> Cc: linux-arm-kernel@...ts.infradead.org;
linux-kernel@...r.kernel.org;
> linux@....linux.org.uk; catalin.marinas@....com; glikely@...retlab.ca;
> jamie@...ieiles.com
> Subject: Re: [PATCH V4 3/4] ARM: Xilinx: base header files and
assembly
> macros
>
> On Friday 18 February 2011, John Linn wrote:
> > +
> > +/* IO address mapping macros, nothing special at this time but
> required */
> > +
> > +#ifdef __ASSEMBLER__
> > +#define IOMEM(x) (x)
> > +#else
> > +#define IOMEM(x) ((void __force __iomem *)(x))
> > +#endif
> > +
> > +#define __io(a) __typesafe_io(a)
> > +#define __mem_pci(a) (a)
>
> Are you planning to support PCI or PCMCIA? If so, the __io definition
> will have to
> change so it points to the PIO register window.
No immediate plans for PCI or PCMCIA. Makes sense.
>
> > diff --git a/arch/arm/mach-xilinx/include/mach/timex.h
> b/arch/arm/mach-xilinx/include/mach/timex.h
> > new file mode 100644
> > index 0000000..4ebc0a6
> > --- /dev/null
> > +++ b/arch/arm/mach-xilinx/include/mach/timex.h
> > +#ifndef __MACH_TIMEX_H__
> > +#define __MACH_TIMEX_H__
> > +
> > +#define PERIPHERAL_CLOCK_RATE 2500000
> > +
> > +#define CLOCK_TICK_RATE (PERIPHERAL_CLOCK_RATE / 32)
> > +
> > +#endif
>
> I thought we were at the point where CLOCK_TICK_RATE is no longer
used.
The timer code in these patches is using it, no other comments on it so
far.
> Did the patches not make it in yet?
>
I haven't heard they made them in yet, just waiting and hoping for an
ack.
> The rest looks fine to me.
Great, appreciate the review and your time.
-- John
>
> Arnd
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