| /* | |
| * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. | |
| * <benh@kernel.crashing.org> | |
| * | |
| * 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__ | |
| #ifndef __ASSEMBLY__ | |
| #ifdef CONFIG_PPC_DCR | |
| #ifdef CONFIG_PPC_DCR_NATIVE | |
| #include <asm/dcr-native.h> | |
| #endif | |
| #ifdef CONFIG_PPC_DCR_MMIO | |
| #include <asm/dcr-mmio.h> | |
| #endif | |
| /* Indirection layer for providing both NATIVE and MMIO support. */ | |
| #if defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) | |
| #include <asm/dcr-generic.h> | |
| #define DCR_MAP_OK(host) dcr_map_ok_generic(host) | |
| #define dcr_map(dev, dcr_n, dcr_c) dcr_map_generic(dev, dcr_n, dcr_c) | |
| #define dcr_unmap(host, dcr_c) dcr_unmap_generic(host, dcr_c) | |
| #define dcr_read(host, dcr_n) dcr_read_generic(host, dcr_n) | |
| #define dcr_write(host, dcr_n, value) dcr_write_generic(host, dcr_n, value) | |
| #else | |
| #ifdef CONFIG_PPC_DCR_NATIVE | |
| typedef dcr_host_native_t dcr_host_t; | |
| #define DCR_MAP_OK(host) dcr_map_ok_native(host) | |
| #define dcr_map(dev, dcr_n, dcr_c) dcr_map_native(dev, dcr_n, dcr_c) | |
| #define dcr_unmap(host, dcr_c) dcr_unmap_native(host, dcr_c) | |
| #define dcr_read(host, dcr_n) dcr_read_native(host, dcr_n) | |
| #define dcr_write(host, dcr_n, value) dcr_write_native(host, dcr_n, value) | |
| #else | |
| typedef dcr_host_mmio_t dcr_host_t; | |
| #define DCR_MAP_OK(host) dcr_map_ok_mmio(host) | |
| #define dcr_map(dev, dcr_n, dcr_c) dcr_map_mmio(dev, dcr_n, dcr_c) | |
| #define dcr_unmap(host, dcr_c) dcr_unmap_mmio(host, dcr_c) | |
| #define dcr_read(host, dcr_n) dcr_read_mmio(host, dcr_n) | |
| #define dcr_write(host, dcr_n, value) dcr_write_mmio(host, dcr_n, value) | |
| #endif | |
| #endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */ | |
| /* | |
| * additional helpers to read the DCR * base from the device-tree | |
| */ | |
| struct device_node; | |
| extern unsigned int dcr_resource_start(const struct device_node *np, | |
| unsigned int index); | |
| extern unsigned int dcr_resource_len(const struct device_node *np, | |
| unsigned int index); | |
| #endif /* CONFIG_PPC_DCR */ | |
| #endif /* __ASSEMBLY__ */ | |
| #endif /* __KERNEL__ */ | |
| #endif /* _ASM_POWERPC_DCR_H */ |