blob: 12c5664fea6ecf0a7f2638ba202b74f948731cec (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/*
* arch/metag/include/asm/mach/arch.h
*
* Copyright (C) 2012 Imagination Technologies Ltd.
*
* based on the ARM version:
* Copyright (C) 2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _METAG_MACH_ARCH_H_
#define _METAG_MACH_ARCH_H_
#include <linux/stddef.h>
#include <asm/clock.h>
/**
* struct machine_desc - Describes a board controlled by a Meta.
* @name: Board/SoC name.
* @dt_compat: Array of device tree 'compatible' strings.
* @clocks: Clock callbacks.
*
* @nr_irqs: Maximum number of IRQs.
* If 0, defaults to NR_IRQS in asm-generic/irq.h.
*
* @init_early: Early init callback.
* @init_irq: IRQ init callback for setting up IRQ controllers.
* @init_machine: Arch init callback for setting up devices.
* @init_late: Late init callback.
*
* This structure is provided by each board which can be controlled by a Meta.
* It is chosen by matching the compatible strings in the device tree provided
* by the bootloader with the strings in @dt_compat, and sets up any aspects of
* the machine that aren't configured with device tree (yet).
*/
struct machine_desc {
const char *name;
const char **dt_compat;
struct meta_clock_desc *clocks;
unsigned int nr_irqs;
void (*init_early)(void);
void (*init_irq)(void);
void (*init_machine)(void);
void (*init_late)(void);
};
/*
* Current machine - only accessible during boot.
*/
extern struct machine_desc *machine_desc;
/*
* Machine type table - also only accessible during boot
*/
extern struct machine_desc __arch_info_begin[], __arch_info_end[];
#define for_each_machine_desc(p) \
for (p = __arch_info_begin; p < __arch_info_end; p++)
static inline struct machine_desc *default_machine_desc(void)
{
/* the default machine is the last one linked in */
if (__arch_info_end - 1 < __arch_info_begin)
return NULL;
return __arch_info_end - 1;
}
/*
* Set of macros to define architecture features. This is built into
* a table by the linker.
*/
#define MACHINE_START(_type, _name) \
static const struct machine_desc __mach_desc_##_type \
__used \
__attribute__((__section__(".arch.info.init"))) = { \
.name = _name,
#define MACHINE_END \
};
#endif /* _METAG_MACH_ARCH_H_ */
|
