| /* | |
| * (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_MMIO_H | |
| #define _ASM_POWERPC_DCR_MMIO_H | |
| #ifdef __KERNEL__ | |
| #include <asm/io.h> | |
| typedef struct { | |
| void __iomem *token; | |
| unsigned int stride; | |
| unsigned int base; | |
| } dcr_host_mmio_t; | |
| static inline bool dcr_map_ok_mmio(dcr_host_mmio_t host) | |
| { | |
| return host.token != NULL; | |
| } | |
| extern dcr_host_mmio_t dcr_map_mmio(struct device_node *dev, | |
| unsigned int dcr_n, | |
| unsigned int dcr_c); | |
| extern void dcr_unmap_mmio(dcr_host_mmio_t host, unsigned int dcr_c); | |
| static inline u32 dcr_read_mmio(dcr_host_mmio_t host, unsigned int dcr_n) | |
| { | |
| return in_be32(host.token + ((host.base + dcr_n) * host.stride)); | |
| } | |
| static inline void dcr_write_mmio(dcr_host_mmio_t host, | |
| unsigned int dcr_n, | |
| u32 value) | |
| { | |
| out_be32(host.token + ((host.base + dcr_n) * host.stride), value); | |
| } | |
| #endif /* __KERNEL__ */ | |
| #endif /* _ASM_POWERPC_DCR_MMIO_H */ | |