2 * Global definition of all the bootwrapper operations.
4 * Author: Mark A. Greer <mgreer@mvista.com>
6 * 2006 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
11 #ifndef _PPC_BOOT_OPS_H_
12 #define _PPC_BOOT_OPS_H_
18 #define COMMAND_LINE_SIZE 512
19 #define MAX_PATH_LEN 256
20 #define MAX_PROP_LEN 256 /* What should this be? */
22 typedef void (*kernel_entry_t)(unsigned long r3, unsigned long r4, void *r5);
24 /* Platform specific operations */
27 void (*image_hdr)(const void *);
28 void * (*malloc)(unsigned long size);
29 void (*free)(void *ptr);
30 void * (*realloc)(void *ptr, unsigned long size);
32 void * (*vmlinux_alloc)(unsigned long size);
34 extern struct platform_ops platform_ops;
36 /* Device Tree operations */
38 void * (*finddevice)(const char *name);
39 int (*getprop)(const void *phandle, const char *name, void *buf,
41 int (*setprop)(const void *phandle, const char *name,
42 const void *buf, const int buflen);
43 void *(*get_parent)(const void *phandle);
44 /* The node must not already exist. */
45 void *(*create_node)(const void *parent, const char *name);
46 void *(*find_node_by_prop_value)(const void *prev,
48 const char *propval, int proplen);
49 unsigned long (*finalize)(void);
50 char *(*get_path)(const void *phandle, char *buf, int len);
52 extern struct dt_ops dt_ops;
54 /* Console operations */
57 void (*write)(const char *buf, int len);
58 void (*edit_cmdline)(char *buf, int len);
62 extern struct console_ops console_ops;
64 /* Serial console operations */
65 struct serial_console_data {
67 void (*putc)(unsigned char c);
68 unsigned char (*getc)(void);
75 unsigned long initrd_addr, initrd_size;
79 extern struct loader_info loader_info;
82 int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device);
83 int serial_console_init(void);
84 int ns16550_console_init(void *devp, struct serial_console_data *scdp);
85 int mpsc_console_init(void *devp, struct serial_console_data *scdp);
86 int cpm_console_init(void *devp, struct serial_console_data *scdp);
87 void *simple_alloc_init(char *base, unsigned long heap_size,
88 unsigned long granularity, unsigned long max_allocs);
89 extern void flush_cache(void *, unsigned long);
90 int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size);
91 int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr);
92 int dt_is_compatible(void *node, const char *compat);
93 void dt_get_reg_format(void *node, u32 *naddr, u32 *nsize);
95 static inline void *finddevice(const char *name)
97 return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL;
100 static inline int getprop(void *devp, const char *name, void *buf, int buflen)
102 return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1;
105 static inline int setprop(void *devp, const char *name,
106 const void *buf, int buflen)
108 return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1;
110 #define setprop_val(devp, name, val) \
112 typeof(val) x = (val); \
113 setprop((devp), (name), &x, sizeof(x)); \
116 static inline int setprop_str(void *devp, const char *name, const char *buf)
119 return dt_ops.setprop(devp, name, buf, strlen(buf) + 1);
124 static inline void *get_parent(const char *devp)
126 return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL;
129 static inline void *create_node(const void *parent, const char *name)
131 return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL;
135 static inline void *find_node_by_prop_value(const void *prev,
136 const char *propname,
137 const char *propval, int proplen)
139 if (dt_ops.find_node_by_prop_value)
140 return dt_ops.find_node_by_prop_value(prev, propname,
146 static inline void *find_node_by_prop_value_str(const void *prev,
147 const char *propname,
150 return find_node_by_prop_value(prev, propname, propval,
151 strlen(propval) + 1);
154 static inline void *find_node_by_devtype(const void *prev,
157 return find_node_by_prop_value_str(prev, "device_type", type);
160 void dt_fixup_memory(u64 start, u64 size);
161 void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq);
162 void dt_fixup_clock(const char *path, u32 freq);
163 void __dt_fixup_mac_addresses(u32 startindex, ...);
164 #define dt_fixup_mac_addresses(...) \
165 __dt_fixup_mac_addresses(0, __VA_ARGS__, NULL)
168 static inline void *find_node_by_linuxphandle(const u32 linuxphandle)
170 return find_node_by_prop_value(NULL, "linux,phandle",
171 (char *)&linuxphandle, sizeof(u32));
174 static inline char *get_path(const void *phandle, char *buf, int len)
177 return dt_ops.get_path(phandle, buf, len);
182 static inline void *malloc(unsigned long size)
184 return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL;
187 static inline void free(void *ptr)
189 if (platform_ops.free)
190 platform_ops.free(ptr);
193 static inline void exit(void)
195 if (platform_ops.exit)
199 #define fatal(args...) { printf(args); exit(); }
202 #define BSS_STACK(size) \
203 static char _bss_stack[size]; \
204 void *_platform_stack_top = _bss_stack + sizeof(_bss_stack);
206 extern unsigned long timebase_period_ns;
207 void udelay(long delay);
209 extern char _start[];
210 extern char __bss_start[];
212 extern char _vmlinux_start[];
213 extern char _vmlinux_end[];
214 extern char _initrd_start[];
215 extern char _initrd_end[];
216 extern char _dtb_start[];
217 extern char _dtb_end[];
219 static inline __attribute__((const))
220 int __ilog2_u32(u32 n)
223 asm ("cntlzw %0,%1" : "=r" (bit) : "r" (n));
227 #endif /* _PPC_BOOT_OPS_H_ */