[PATCH] powerpc: Generic DCR access
jwboyer at jdub.homelinux.org
Tue Oct 3 20:45:58 EST 2006
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.
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