1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
 4 *                    <benh@kernel.crashing.org>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 5 */
 6
 7#ifndef _ASM_POWERPC_DCR_H
 8#define _ASM_POWERPC_DCR_H
 9#ifdef __KERNEL__
10#ifndef __ASSEMBLY__
11#ifdef CONFIG_PPC_DCR
12
13#ifdef CONFIG_PPC_DCR_NATIVE
14#include <asm/dcr-native.h>
15#endif
16
17#ifdef CONFIG_PPC_DCR_MMIO
18#include <asm/dcr-mmio.h>
19#endif
20
21
22/* Indirection layer for providing both NATIVE and MMIO support. */
23
24#if defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO)
25
26#include <asm/dcr-generic.h>
27
28#define DCR_MAP_OK(host)	dcr_map_ok_generic(host)
29#define dcr_map(dev, dcr_n, dcr_c) dcr_map_generic(dev, dcr_n, dcr_c)
30#define dcr_unmap(host, dcr_c) dcr_unmap_generic(host, dcr_c)
31#define dcr_read(host, dcr_n) dcr_read_generic(host, dcr_n)
32#define dcr_write(host, dcr_n, value) dcr_write_generic(host, dcr_n, value)
33
34#else
35
36#ifdef CONFIG_PPC_DCR_NATIVE
37typedef dcr_host_native_t dcr_host_t;
38#define DCR_MAP_OK(host)	dcr_map_ok_native(host)
39#define dcr_map(dev, dcr_n, dcr_c) dcr_map_native(dev, dcr_n, dcr_c)
40#define dcr_unmap(host, dcr_c) dcr_unmap_native(host, dcr_c)
41#define dcr_read(host, dcr_n) dcr_read_native(host, dcr_n)
42#define dcr_write(host, dcr_n, value) dcr_write_native(host, dcr_n, value)
43#else
44typedef dcr_host_mmio_t dcr_host_t;
45#define DCR_MAP_OK(host)	dcr_map_ok_mmio(host)
46#define dcr_map(dev, dcr_n, dcr_c) dcr_map_mmio(dev, dcr_n, dcr_c)
47#define dcr_unmap(host, dcr_c) dcr_unmap_mmio(host, dcr_c)
48#define dcr_read(host, dcr_n) dcr_read_mmio(host, dcr_n)
49#define dcr_write(host, dcr_n, value) dcr_write_mmio(host, dcr_n, value)
50#endif
51
52#endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */
53
54/*
55 * additional helpers to read the DCR * base from the device-tree
56 */
57struct device_node;
58extern unsigned int dcr_resource_start(const struct device_node *np,
59				       unsigned int index);
60extern unsigned int dcr_resource_len(const struct device_node *np,
61				     unsigned int index);
62#endif /* CONFIG_PPC_DCR */
63#endif /* __ASSEMBLY__ */
64#endif /* __KERNEL__ */
65#endif /* _ASM_POWERPC_DCR_H */

 
 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#ifndef __ASSEMBLY__
24#ifdef CONFIG_PPC_DCR
25
26#ifdef CONFIG_PPC_DCR_NATIVE
27#include <asm/dcr-native.h>
28#endif
29
30#ifdef CONFIG_PPC_DCR_MMIO
31#include <asm/dcr-mmio.h>
32#endif
33
34
35/* Indirection layer for providing both NATIVE and MMIO support. */
36
37#if defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO)
38
39#include <asm/dcr-generic.h>
40
41#define DCR_MAP_OK(host)	dcr_map_ok_generic(host)
42#define dcr_map(dev, dcr_n, dcr_c) dcr_map_generic(dev, dcr_n, dcr_c)
43#define dcr_unmap(host, dcr_c) dcr_unmap_generic(host, dcr_c)
44#define dcr_read(host, dcr_n) dcr_read_generic(host, dcr_n)
45#define dcr_write(host, dcr_n, value) dcr_write_generic(host, dcr_n, value)
46
47#else
48
49#ifdef CONFIG_PPC_DCR_NATIVE
50typedef dcr_host_native_t dcr_host_t;
51#define DCR_MAP_OK(host)	dcr_map_ok_native(host)
52#define dcr_map(dev, dcr_n, dcr_c) dcr_map_native(dev, dcr_n, dcr_c)
53#define dcr_unmap(host, dcr_c) dcr_unmap_native(host, dcr_c)
54#define dcr_read(host, dcr_n) dcr_read_native(host, dcr_n)
55#define dcr_write(host, dcr_n, value) dcr_write_native(host, dcr_n, value)
56#else
57typedef dcr_host_mmio_t dcr_host_t;
58#define DCR_MAP_OK(host)	dcr_map_ok_mmio(host)
59#define dcr_map(dev, dcr_n, dcr_c) dcr_map_mmio(dev, dcr_n, dcr_c)
60#define dcr_unmap(host, dcr_c) dcr_unmap_mmio(host, dcr_c)
61#define dcr_read(host, dcr_n) dcr_read_mmio(host, dcr_n)
62#define dcr_write(host, dcr_n, value) dcr_write_mmio(host, dcr_n, value)
63#endif
64
65#endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */
66
67/*
68 * additional helpers to read the DCR * base from the device-tree
69 */
70struct device_node;
71extern unsigned int dcr_resource_start(const struct device_node *np,
72				       unsigned int index);
73extern unsigned int dcr_resource_len(const struct device_node *np,
74				     unsigned int index);
75#endif /* CONFIG_PPC_DCR */
76#endif /* __ASSEMBLY__ */
77#endif /* __KERNEL__ */
78#endif /* _ASM_POWERPC_DCR_H */