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-rw-r--r--arch/powerpc/boot/ops.h103
1 files changed, 96 insertions, 7 deletions
diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h
index 8abb6516bb7c..73bd47a3a079 100644
--- a/arch/powerpc/boot/ops.h
+++ b/arch/powerpc/boot/ops.h
@@ -11,7 +11,9 @@
11#ifndef _PPC_BOOT_OPS_H_ 11#ifndef _PPC_BOOT_OPS_H_
12#define _PPC_BOOT_OPS_H_ 12#define _PPC_BOOT_OPS_H_
13 13
14#include <stddef.h>
14#include "types.h" 15#include "types.h"
16#include "string.h"
15 17
16#define COMMAND_LINE_SIZE 512 18#define COMMAND_LINE_SIZE 512
17#define MAX_PATH_LEN 256 19#define MAX_PATH_LEN 256
@@ -21,10 +23,11 @@
21struct platform_ops { 23struct platform_ops {
22 void (*fixups)(void); 24 void (*fixups)(void);
23 void (*image_hdr)(const void *); 25 void (*image_hdr)(const void *);
24 void * (*malloc)(u32 size); 26 void * (*malloc)(unsigned long size);
25 void (*free)(void *ptr); 27 void (*free)(void *ptr);
26 void * (*realloc)(void *ptr, unsigned long size); 28 void * (*realloc)(void *ptr, unsigned long size);
27 void (*exit)(void); 29 void (*exit)(void);
30 void * (*vmlinux_alloc)(unsigned long size);
28}; 31};
29extern struct platform_ops platform_ops; 32extern struct platform_ops platform_ops;
30 33
@@ -35,6 +38,12 @@ struct dt_ops {
35 const int buflen); 38 const int buflen);
36 int (*setprop)(const void *phandle, const char *name, 39 int (*setprop)(const void *phandle, const char *name,
37 const void *buf, const int buflen); 40 const void *buf, const int buflen);
41 void *(*get_parent)(const void *phandle);
42 /* The node must not already exist. */
43 void *(*create_node)(const void *parent, const char *name);
44 void *(*find_node_by_prop_value)(const void *prev,
45 const char *propname,
46 const char *propval, int proplen);
38 unsigned long (*finalize)(void); 47 unsigned long (*finalize)(void);
39}; 48};
40extern struct dt_ops dt_ops; 49extern struct dt_ops dt_ops;
@@ -58,13 +67,23 @@ struct serial_console_data {
58 void (*close)(void); 67 void (*close)(void);
59}; 68};
60 69
61int platform_init(void *promptr, char *dt_blob_start, char *dt_blob_end); 70struct loader_info {
71 void *promptr;
72 unsigned long initrd_addr, initrd_size;
73 char *cmdline;
74 int cmdline_len;
75};
76extern struct loader_info loader_info;
77
78void start(void);
62int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device); 79int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device);
63int serial_console_init(void); 80int serial_console_init(void);
64int ns16550_console_init(void *devp, struct serial_console_data *scdp); 81int ns16550_console_init(void *devp, struct serial_console_data *scdp);
65void *simple_alloc_init(char *base, u32 heap_size, u32 granularity, 82void *simple_alloc_init(char *base, unsigned long heap_size,
66 u32 max_allocs); 83 unsigned long granularity, unsigned long max_allocs);
67 84extern void flush_cache(void *, unsigned long);
85int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size);
86int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr);
68 87
69static inline void *finddevice(const char *name) 88static inline void *finddevice(const char *name)
70{ 89{
@@ -76,12 +95,76 @@ static inline int getprop(void *devp, const char *name, void *buf, int buflen)
76 return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1; 95 return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1;
77} 96}
78 97
79static inline int setprop(void *devp, const char *name, void *buf, int buflen) 98static inline int setprop(void *devp, const char *name,
99 const void *buf, int buflen)
80{ 100{
81 return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1; 101 return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1;
82} 102}
103#define setprop_val(devp, name, val) \
104 do { \
105 typeof(val) x = (val); \
106 setprop((devp), (name), &x, sizeof(x)); \
107 } while (0)
108
109static inline int setprop_str(void *devp, const char *name, const char *buf)
110{
111 if (dt_ops.setprop)
112 return dt_ops.setprop(devp, name, buf, strlen(buf) + 1);
113
114 return -1;
115}
116
117static inline void *get_parent(const char *devp)
118{
119 return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL;
120}
121
122static inline void *create_node(const void *parent, const char *name)
123{
124 return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL;
125}
126
83 127
84static inline void *malloc(u32 size) 128static inline void *find_node_by_prop_value(const void *prev,
129 const char *propname,
130 const char *propval, int proplen)
131{
132 if (dt_ops.find_node_by_prop_value)
133 return dt_ops.find_node_by_prop_value(prev, propname,
134 propval, proplen);
135
136 return NULL;
137}
138
139static inline void *find_node_by_prop_value_str(const void *prev,
140 const char *propname,
141 const char *propval)
142{
143 return find_node_by_prop_value(prev, propname, propval,
144 strlen(propval) + 1);
145}
146
147static inline void *find_node_by_devtype(const void *prev,
148 const char *type)
149{
150 return find_node_by_prop_value_str(prev, "device_type", type);
151}
152
153void dt_fixup_memory(u64 start, u64 size);
154void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq);
155void dt_fixup_clock(const char *path, u32 freq);
156void __dt_fixup_mac_addresses(u32 startindex, ...);
157#define dt_fixup_mac_addresses(...) \
158 __dt_fixup_mac_addresses(0, __VA_ARGS__, NULL)
159
160
161static inline void *find_node_by_linuxphandle(const u32 linuxphandle)
162{
163 return find_node_by_prop_value(NULL, "linux,phandle",
164 (char *)&linuxphandle, sizeof(u32));
165}
166
167static inline void *malloc(unsigned long size)
85{ 168{
86 return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL; 169 return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL;
87} 170}
@@ -98,5 +181,11 @@ static inline void exit(void)
98 platform_ops.exit(); 181 platform_ops.exit();
99 for(;;); 182 for(;;);
100} 183}
184#define fatal(args...) { printf(args); exit(); }
185
186
187#define BSS_STACK(size) \
188 static char _bss_stack[size]; \
189 void *_platform_stack_top = _bss_stack + sizeof(_bss_stack);
101 190
102#endif /* _PPC_BOOT_OPS_H_ */ 191#endif /* _PPC_BOOT_OPS_H_ */