blob: 35b71599ec46b2e57d5fd8f9b2759df8f0fd68b9 [file] [log] [blame]
Stephen Neuendorfferb786af12008-05-07 04:29:17 +10001/*
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_GENERIC_H
21#define _ASM_POWERPC_DCR_GENERIC_H
22#ifdef __KERNEL__
23#ifndef __ASSEMBLY__
24
25enum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID};
26
27typedef struct {
28 enum host_type_t type;
29 union {
30 dcr_host_mmio_t mmio;
31 dcr_host_native_t native;
32 } host;
33} dcr_host_t;
34
35extern bool dcr_map_ok_generic(dcr_host_t host);
36
37extern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n,
38 unsigned int dcr_c);
39extern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c);
40
41extern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n);
42
43extern void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value);
44
45#endif /* __ASSEMBLY__ */
46#endif /* __KERNEL__ */
47#endif /* _ASM_POWERPC_DCR_GENERIC_H */
48
49