linux-kernel - RE: [PATCH V2 1/4] ARM: Xilinx: Adding Xilinx board support

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Date:	Mon, 14 Feb 2011 07:41:47 -0700
From:	John Linn <John.Linn@...inx.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <catalin.marinas@....com>,
	<glikely@...retlab.ca>
Subject: RE: [PATCH V2 1/4] ARM: Xilinx: Adding Xilinx board support

> -----Original Message-----
> From: Russell King - ARM Linux [mailto:linux@....linux.org.uk]
> Sent: Saturday, February 12, 2011 5:13 AM
> To: John Linn
> Cc: linux-arm-kernel@...ts.infradead.org;
linux-kernel@...r.kernel.org; catalin.marinas@....com;
> glikely@...retlab.ca
> Subject: Re: [PATCH V2 1/4] ARM: Xilinx: Adding Xilinx board support
> 
> On Wed, Feb 09, 2011 at 10:00:42AM -0700, John Linn wrote:
> > +/* arch/arm/mach-xilinx/board_ep107.c
> > + *
> > + * This file contains code specific to the Xilinx EP107 board.
> > + *
> > + *  Copyright (C) 2011 Xilinx
> > + *
> > + * based on /arch/arm/mach-realview/core.c
> > + *
> > + *  Copyright (C) 1999 - 2003 ARM Limited
> > + *  Copyright (C) 2000 Deep Blue Solutions Ltd
> > + *
> > + * This program is free software; you can redistribute it and/or
modify
> > + * it under the terms of the GNU General Public License as
published by
> > + * the Free Software Foundation; either version 2 of the License,
or
> > + * (at your option) any later version.
> > + *
> > + * You should have received a copy of the GNU General Public
License
> > + * along with this program; if not, write to the Free Software
> > + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307  USA
> 
> You probably don't want to include this paragraph - their address
keeps
> changing, so will require files to be constantly updated.

Makes sense. Easy to fix.

> 
> > + */
> > +
> > +#include <linux/platform_device.h>
> > +#include <asm/mach-types.h>
> > +#include <asm/mach/arch.h>
> > +#include <mach/xilinx_soc.h>
> > +#include <mach/irqs.h>
> > +#include <linux/clkdev.h>
> 
> Please group linux/ includes together, then asm/ includes, lastly
mach/
> includes.
> 
> > @@ -0,0 +1,113 @@
> > +/* arch/arm/mach-xilinx/common.c
> ...
> > +/**
> > + * system_init - System specific initialization, intended to be
called from
> > + *			board specific initialization.
> > + *
> > + **/
> > +void __init system_init(void)
> 
> Is there a better name for this - maybe prefixing it with xilinx_ ?

Sure, that's easy.

> 
> > +{
> > +#ifdef CONFIG_CACHE_L2X0
> > +	/*
> > +	 * 64KB way size, 8-way associativity, parity disabled
> > +	 */
> > +	l2x0_init(PL310_L2CC_BASE, 0x02060000, 0xF0F0FFFF);
> > +#endif
> > +}
> > +
> > +/**
> > + * irq_init - Interrupt controller initialization for the GIC.
> > + *
> > + **/
> > +void __init irq_init(void)
> 
> Ditto.

Same thing, easy.

> 
> > +/**
> > + * map_io - Create memory mappings needed for early I/O.
> > + *
> > + **/
> > +void __init map_io(void)
> 
> Ditto.

Yep.


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