[PATCH] powerpc: Generic DCR access

[Josh Boyer]

On Tue, 2006-10-03 at 16:04 +1000, Benjamin Herrenschmidt wrote:
> This defines new "generic" access functions for DCRs that can be used
> both on platforms with hardware DCR support (4xx processors) and
> platforms where the DCRs are memory mapped. The 4xx versions are
> implemented inline. The memory mapped versions will be implemented
> separately as platforms support for them gets added.
> 
> From: Shaun Wetzstein <shaun at us.ibm.com>
> Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
> 
> Index: linux-cell/include/asm-powerpc/dcr.h
> ===================================================================
> --- /dev/null	1970-01-01 00:00:00.000000000 +0000
> +++ linux-cell/include/asm-powerpc/dcr.h	2006-09-22 13:25:58.000000000 +1000
> @@ -0,0 +1,56 @@
> +/*
> + *   Copyright (c) International Business Machines Corp., 2006
> + *
> + *   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.
> + *
> + *   This program is distributed in the hope that it will be useful,
> + *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
> + *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
> + *   the GNU General Public License for more details.
> + *
> + *   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
> + */
> +
> +#ifndef _ASM_POWERPC_DCR_H
> +#define _ASM_POWERPC_DCR_H
> +#ifdef __KERNEL__
> +
> +#include <asm/of_device.h>
> +
> +#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)

I think this should be #if defined(CONFIG_40x) ||  defined(CONFIG_44x).
Or even just #ifdef CONFIG_4xx.  CONFIG_BOOKE also gets set for things
like e500, but those don't have DCRs.

josh