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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* Global definition of all the bootwrapper operations.
*
* Author: Mark A. Greer <mgreer@mvista.com>
*
* 2006 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#ifndef _PPC_BOOT_OPS_H_
#define _PPC_BOOT_OPS_H_
#include <stddef.h>
#include "types.h"
#include "string.h"
#define COMMAND_LINE_SIZE 512
#define MAX_PATH_LEN 256
#define MAX_PROP_LEN 256 /* What should this be? */
/* Platform specific operations */
struct platform_ops {
void (*fixups)(void);
void (*image_hdr)(const void *);
void * (*malloc)(unsigned long size);
void (*free)(void *ptr);
void * (*realloc)(void *ptr, unsigned long size);
void (*exit)(void);
void * (*vmlinux_alloc)(unsigned long size);
};
extern struct platform_ops platform_ops;
/* Device Tree operations */
struct dt_ops {
void * (*finddevice)(const char *name);
int (*getprop)(const void *phandle, const char *name, void *buf,
const int buflen);
int (*setprop)(const void *phandle, const char *name,
const void *buf, const int buflen);
void *(*get_parent)(const void *phandle);
/* The node must not already exist. */
void *(*create_node)(const void *parent, const char *name);
void *(*find_node_by_prop_value)(const void *prev,
const char *propname,
const char *propval, int proplen);
unsigned long (*finalize)(void);
};
extern struct dt_ops dt_ops;
/* Console operations */
struct console_ops {
int (*open)(void);
void (*write)(char *buf, int len);
void (*edit_cmdline)(char *buf, int len);
void (*close)(void);
void *data;
};
extern struct console_ops console_ops;
/* Serial console operations */
struct serial_console_data {
int (*open)(void);
void (*putc)(unsigned char c);
unsigned char (*getc)(void);
u8 (*tstc)(void);
void (*close)(void);
};
struct loader_info {
void *promptr;
unsigned long initrd_addr, initrd_size;
char *cmdline;
int cmdline_len;
};
extern struct loader_info loader_info;
void start(void);
int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device);
int serial_console_init(void);
int ns16550_console_init(void *devp, struct serial_console_data *scdp);
int mpsc_console_init(void *devp, struct serial_console_data *scdp);
void *simple_alloc_init(char *base, unsigned long heap_size,
unsigned long granularity, unsigned long max_allocs);
extern void flush_cache(void *, unsigned long);
int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size);
int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr);
static inline void *finddevice(const char *name)
{
return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL;
}
static inline int getprop(void *devp, const char *name, void *buf, int buflen)
{
return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1;
}
static inline int setprop(void *devp, const char *name,
const void *buf, int buflen)
{
return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1;
}
#define setprop_val(devp, name, val) \
do { \
typeof(val) x = (val); \
setprop((devp), (name), &x, sizeof(x)); \
} while (0)
static inline int setprop_str(void *devp, const char *name, const char *buf)
{
if (dt_ops.setprop)
return dt_ops.setprop(devp, name, buf, strlen(buf) + 1);
return -1;
}
static inline void *get_parent(const char *devp)
{
return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL;
}
static inline void *create_node(const void *parent, const char *name)
{
return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL;
}
static inline void *find_node_by_prop_value(const void *prev,
const char *propname,
const char *propval, int proplen)
{
if (dt_ops.find_node_by_prop_value)
return dt_ops.find_node_by_prop_value(prev, propname,
propval, proplen);
return NULL;
}
static inline void *find_node_by_prop_value_str(const void *prev,
const char *propname,
const char *propval)
{
return find_node_by_prop_value(prev, propname, propval,
strlen(propval) + 1);
}
static inline void *find_node_by_devtype(const void *prev,
const char *type)
{
return find_node_by_prop_value_str(prev, "device_type", type);
}
void dt_fixup_memory(u64 start, u64 size);
void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq);
void dt_fixup_clock(const char *path, u32 freq);
void __dt_fixup_mac_addresses(u32 startindex, ...);
#define dt_fixup_mac_addresses(...) \
__dt_fixup_mac_addresses(0, __VA_ARGS__, NULL)
static inline void *find_node_by_linuxphandle(const u32 linuxphandle)
{
return find_node_by_prop_value(NULL, "linux,phandle",
(char *)&linuxphandle, sizeof(u32));
}
static inline void *malloc(unsigned long size)
{
return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL;
}
static inline void free(void *ptr)
{
if (platform_ops.free)
platform_ops.free(ptr);
}
static inline void exit(void)
{
if (platform_ops.exit)
platform_ops.exit();
for(;;);
}
#define fatal(args...) { printf(args); exit(); }
#define BSS_STACK(size) \
static char _bss_stack[size]; \
void *_platform_stack_top = _bss_stack + sizeof(_bss_stack);
#endif /* _PPC_BOOT_OPS_H_ */
|
