1/*
2 * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
3 *                    <benh@kernel.crashing.org>
4 *
5 *   This program is free software;  you can redistribute it and/or modify
6 *   it under the terms of the GNU General Public License as published by
7 *   the Free Software Foundation; either version 2 of the License, or
8 *   (at your option) any later version.
9 *
10 *   This program is distributed in the hope that it will be useful,
11 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
12 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
13 *   the GNU General Public License for more details.
14 *
15 *   You should have received a copy of the GNU General Public License
16 *   along with this program;  if not, write to the Free Software
17 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#ifndef _ASM_POWERPC_DCR_H
21#define _ASM_POWERPC_DCR_H
22#ifdef __KERNEL__
23#ifdef CONFIG_PPC_DCR
24
25#ifdef CONFIG_PPC_DCR_NATIVE
26#include <asm/dcr-native.h>
27#else
28#include <asm/dcr-mmio.h>
29#endif
30
31/*
32 * On CONFIG_PPC_MERGE, we have additional helpers to read the DCR
33 * base from the device-tree
34 */
35#ifdef CONFIG_PPC_MERGE
36struct device_node;
37extern unsigned int dcr_resource_start(struct device_node *np,
38				       unsigned int index);
39extern unsigned int dcr_resource_len(struct device_node *np,
40				     unsigned int index);
41#endif /* CONFIG_PPC_MERGE */
42
43#endif /* CONFIG_PPC_DCR */
44#endif /* __KERNEL__ */
45#endif /* _ASM_POWERPC_DCR_H */
46