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);
51 extern struct dt_ops dt_ops;
53 /* Console operations */
56 void (*write)(const char *buf, int len);
57 void (*edit_cmdline)(char *buf, int len);
61 extern struct console_ops console_ops;
63 /* Serial console operations */
64 struct serial_console_data {
66 void (*putc)(unsigned char c);
67 unsigned char (*getc)(void);
74 unsigned long initrd_addr, initrd_size;
78 extern struct loader_info loader_info;
81 int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device);
82 int serial_console_init(void);
83 int ns16550_console_init(void *devp, struct serial_console_data *scdp);
84 int mpsc_console_init(void *devp, struct serial_console_data *scdp);
85 int cpm_console_init(void *devp, struct serial_console_data *scdp);
86 void *simple_alloc_init(char *base, unsigned long heap_size,
87 unsigned long granularity, unsigned long max_allocs);
88 extern void flush_cache(void *, unsigned long);
89 int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size);
90 int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr);
91 int dt_is_compatible(void *node, const char *compat);
92 void dt_get_reg_format(void *node, u32 *naddr, u32 *nsize);
94 static inline void *finddevice(const char *name)
96 return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL;
99 static inline int getprop(void *devp, const char *name, void *buf, int buflen)
101 return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1;
104 static inline int setprop(void *devp, const char *name,
105 const void *buf, int buflen)
107 return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1;
109 #define setprop_val(devp, name, val) \
111 typeof(val) x = (val); \
112 setprop((devp), (name), &x, sizeof(x)); \
115 static inline int setprop_str(void *devp, const char *name, const char *buf)
118 return dt_ops.setprop(devp, name, buf, strlen(buf) + 1);
123 static inline void *get_parent(const char *devp)
125 return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL;
128 static inline void *create_node(const void *parent, const char *name)
130 return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL;
134 static inline void *find_node_by_prop_value(const void *prev,
135 const char *propname,
136 const char *propval, int proplen)
138 if (dt_ops.find_node_by_prop_value)
139 return dt_ops.find_node_by_prop_value(prev, propname,
145 static inline void *find_node_by_prop_value_str(const void *prev,
146 const char *propname,
149 return find_node_by_prop_value(prev, propname, propval,
150 strlen(propval) + 1);
153 static inline void *find_node_by_devtype(const void *prev,
156 return find_node_by_prop_value_str(prev, "device_type", type);
159 void dt_fixup_memory(u64 start, u64 size);
160 void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq);
161 void dt_fixup_clock(const char *path, u32 freq);
162 void __dt_fixup_mac_addresses(u32 startindex, ...);
163 #define dt_fixup_mac_addresses(...) \
164 __dt_fixup_mac_addresses(0, __VA_ARGS__, NULL)
167 static inline void *find_node_by_linuxphandle(const u32 linuxphandle)
169 return find_node_by_prop_value(NULL, "linux,phandle",
170 (char *)&linuxphandle, sizeof(u32));
173 static inline void *malloc(unsigned long size)
175 return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL;
178 static inline void free(void *ptr)
180 if (platform_ops.free)
181 platform_ops.free(ptr);
184 static inline void exit(void)
186 if (platform_ops.exit)
190 #define fatal(args...) { printf(args); exit(); }
193 #define BSS_STACK(size) \
194 static char _bss_stack[size]; \
195 void *_platform_stack_top = _bss_stack + sizeof(_bss_stack);
197 extern unsigned long timebase_period_ns;
198 void udelay(long delay);
200 extern char _start[];
201 extern char __bss_start[];
203 extern char _vmlinux_start[];
204 extern char _vmlinux_end[];
205 extern char _initrd_start[];
206 extern char _initrd_end[];
207 extern char _dtb_start[];
208 extern char _dtb_end[];
210 static inline __attribute__((const))
211 int __ilog2_u32(u32 n)
214 asm ("cntlzw %0,%1" : "=r" (bit) : "r" (n));
218 #endif /* _PPC_BOOT_OPS_H_ */