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 void *(*find_node_by_compatible)(const void *prev,
51 unsigned long (*finalize)(void);
52 char *(*get_path)(const void *phandle, char *buf, int len);
54 extern struct dt_ops dt_ops;
56 /* Console operations */
59 void (*write)(const char *buf, int len);
60 void (*edit_cmdline)(char *buf, int len);
64 extern struct console_ops console_ops;
66 /* Serial console operations */
67 struct serial_console_data {
69 void (*putc)(unsigned char c);
70 unsigned char (*getc)(void);
77 unsigned long initrd_addr, initrd_size;
81 extern struct loader_info loader_info;
84 void fdt_init(void *blob);
85 int serial_console_init(void);
86 int ns16550_console_init(void *devp, struct serial_console_data *scdp);
87 int mpsc_console_init(void *devp, struct serial_console_data *scdp);
88 int cpm_console_init(void *devp, struct serial_console_data *scdp);
89 int mpc5200_psc_console_init(void *devp, struct serial_console_data *scdp);
90 int uartlite_console_init(void *devp, struct serial_console_data *scdp);
91 void *simple_alloc_init(char *base, unsigned long heap_size,
92 unsigned long granularity, unsigned long max_allocs);
93 extern void flush_cache(void *, unsigned long);
94 int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size);
95 int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr);
96 int dt_is_compatible(void *node, const char *compat);
97 void dt_get_reg_format(void *node, u32 *naddr, u32 *nsize);
98 int dt_get_virtual_reg(void *node, void **addr, int nres);
100 static inline void *finddevice(const char *name)
102 return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL;
105 static inline int getprop(void *devp, const char *name, void *buf, int buflen)
107 return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1;
110 static inline int setprop(void *devp, const char *name,
111 const void *buf, int buflen)
113 return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1;
115 #define setprop_val(devp, name, val) \
117 typeof(val) x = (val); \
118 setprop((devp), (name), &x, sizeof(x)); \
121 static inline int setprop_str(void *devp, const char *name, const char *buf)
124 return dt_ops.setprop(devp, name, buf, strlen(buf) + 1);
129 static inline void *get_parent(const char *devp)
131 return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL;
134 static inline void *create_node(const void *parent, const char *name)
136 return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL;
140 static inline void *find_node_by_prop_value(const void *prev,
141 const char *propname,
142 const char *propval, int proplen)
144 if (dt_ops.find_node_by_prop_value)
145 return dt_ops.find_node_by_prop_value(prev, propname,
151 static inline void *find_node_by_prop_value_str(const void *prev,
152 const char *propname,
155 return find_node_by_prop_value(prev, propname, propval,
156 strlen(propval) + 1);
159 static inline void *find_node_by_devtype(const void *prev,
162 return find_node_by_prop_value_str(prev, "device_type", type);
165 static inline void *find_node_by_alias(const char *alias)
167 void *devp = finddevice("/aliases");
170 char path[MAX_PATH_LEN];
171 if (getprop(devp, alias, path, MAX_PATH_LEN) > 0)
172 return finddevice(path);
178 static inline void *find_node_by_compatible(const void *prev,
181 if (dt_ops.find_node_by_compatible)
182 return dt_ops.find_node_by_compatible(prev, compat);
187 void dt_fixup_memory(u64 start, u64 size);
188 void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq);
189 void dt_fixup_clock(const char *path, u32 freq);
190 void dt_fixup_mac_address_by_alias(const char *alias, const u8 *addr);
191 void dt_fixup_mac_address(u32 index, const u8 *addr);
192 void __dt_fixup_mac_addresses(u32 startindex, ...);
193 #define dt_fixup_mac_addresses(...) \
194 __dt_fixup_mac_addresses(0, __VA_ARGS__, NULL)
197 static inline void *find_node_by_linuxphandle(const u32 linuxphandle)
199 return find_node_by_prop_value(NULL, "linux,phandle",
200 (char *)&linuxphandle, sizeof(u32));
203 static inline char *get_path(const void *phandle, char *buf, int len)
206 return dt_ops.get_path(phandle, buf, len);
211 static inline void *malloc(unsigned long size)
213 return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL;
216 static inline void free(void *ptr)
218 if (platform_ops.free)
219 platform_ops.free(ptr);
222 static inline void exit(void)
224 if (platform_ops.exit)
228 #define fatal(args...) { printf(args); exit(); }
231 #define BSS_STACK(size) \
232 static char _bss_stack[size]; \
233 void *_platform_stack_top = _bss_stack + sizeof(_bss_stack);
235 extern unsigned long timebase_period_ns;
236 void udelay(long delay);
238 extern char _start[];
239 extern char __bss_start[];
241 extern char _vmlinux_start[];
242 extern char _vmlinux_end[];
243 extern char _initrd_start[];
244 extern char _initrd_end[];
245 extern char _dtb_start[];
246 extern char _dtb_end[];
248 static inline __attribute__((const))
249 int __ilog2_u32(u32 n)
252 asm ("cntlzw %0,%1" : "=r" (bit) : "r" (n));
256 #endif /* _PPC_BOOT_OPS_H_ */