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