blob: 2bc2f02db7418d131840155c2795a911fdd655eb [file] [log] [blame]
Mark A. Greerb2c5f612006-09-19 14:05:08 +10001/*
2 * Global definition of all the bootwrapper operations.
3 *
4 * Author: Mark A. Greer <mgreer@mvista.com>
5 *
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
9 * or implied.
10 */
11#ifndef _PPC_BOOT_OPS_H_
12#define _PPC_BOOT_OPS_H_
13
Scott Woodce3edb32007-03-12 14:41:38 -060014#include <stddef.h>
Mark A. Greerb2c5f612006-09-19 14:05:08 +100015#include "types.h"
Scott Wooda07940b2007-03-16 12:27:54 -050016#include "string.h"
Mark A. Greerb2c5f612006-09-19 14:05:08 +100017
18#define COMMAND_LINE_SIZE 512
19#define MAX_PATH_LEN 256
20#define MAX_PROP_LEN 256 /* What should this be? */
21
Geoff Levand62cf6a92007-06-16 08:06:44 +100022typedef void (*kernel_entry_t)(unsigned long r3, unsigned long r4, void *r5);
23
Mark A. Greerb2c5f612006-09-19 14:05:08 +100024/* Platform specific operations */
25struct platform_ops {
26 void (*fixups)(void);
27 void (*image_hdr)(const void *);
Geert Uytterhoeven4ca478e2007-04-18 19:24:12 +100028 void * (*malloc)(unsigned long size);
Mark A. Greerc8885542006-10-16 13:49:27 -070029 void (*free)(void *ptr);
30 void * (*realloc)(void *ptr, unsigned long size);
Mark A. Greerb2c5f612006-09-19 14:05:08 +100031 void (*exit)(void);
David Gibson79c85412007-03-05 14:24:52 +110032 void * (*vmlinux_alloc)(unsigned long size);
Mark A. Greerb2c5f612006-09-19 14:05:08 +100033};
34extern struct platform_ops platform_ops;
35
36/* Device Tree operations */
37struct dt_ops {
38 void * (*finddevice)(const char *name);
Mark A. Greerc8885542006-10-16 13:49:27 -070039 int (*getprop)(const void *phandle, const char *name, void *buf,
Mark A. Greerb2c5f612006-09-19 14:05:08 +100040 const int buflen);
Mark A. Greerc8885542006-10-16 13:49:27 -070041 int (*setprop)(const void *phandle, const char *name,
Mark A. Greerb2c5f612006-09-19 14:05:08 +100042 const void *buf, const int buflen);
Scott Wooda07940b2007-03-16 12:27:54 -050043 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,
47 const char *propname,
48 const char *propval, int proplen);
David Gibson35af89e2006-11-21 11:37:37 +110049 unsigned long (*finalize)(void);
Mark A. Greerb2c5f612006-09-19 14:05:08 +100050};
51extern struct dt_ops dt_ops;
52
53/* Console operations */
54struct console_ops {
55 int (*open)(void);
Geoff Levandb96fbb62007-06-16 08:06:40 +100056 void (*write)(const char *buf, int len);
Mark A. Greerb2c5f612006-09-19 14:05:08 +100057 void (*edit_cmdline)(char *buf, int len);
58 void (*close)(void);
59 void *data;
60};
61extern struct console_ops console_ops;
62
63/* Serial console operations */
64struct serial_console_data {
65 int (*open)(void);
66 void (*putc)(unsigned char c);
67 unsigned char (*getc)(void);
68 u8 (*tstc)(void);
69 void (*close)(void);
70};
71
David Gibsoncd197ff2007-03-05 14:24:52 +110072struct loader_info {
73 void *promptr;
74 unsigned long initrd_addr, initrd_size;
David Gibson3af82a82007-03-22 17:02:21 +110075 char *cmdline;
76 int cmdline_len;
David Gibsoncd197ff2007-03-05 14:24:52 +110077};
78extern struct loader_info loader_info;
79
David Gibsone5a2072b2007-03-22 17:02:21 +110080void start(void);
Mark A. Greerc8885542006-10-16 13:49:27 -070081int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device);
82int serial_console_init(void);
83int ns16550_console_init(void *devp, struct serial_console_data *scdp);
Mark A. Greere12deb82007-05-12 10:54:31 +100084int mpsc_console_init(void *devp, struct serial_console_data *scdp);
Scott Woodd0f53fa2007-08-21 03:39:57 +100085int cpm_console_init(void *devp, struct serial_console_data *scdp);
Geert Uytterhoeven4ca478e2007-04-18 19:24:12 +100086void *simple_alloc_init(char *base, unsigned long heap_size,
87 unsigned long granularity, unsigned long max_allocs);
Milton Miller0e680672007-03-19 14:58:06 -060088extern void flush_cache(void *, unsigned long);
Mark A. Greer8895ea42007-04-28 06:48:24 +100089int dt_xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size);
90int dt_xlate_addr(void *node, u32 *buf, int buflen, unsigned long *xlated_addr);
Scott Wooda73ac502007-08-21 03:39:48 +100091int dt_is_compatible(void *node, const char *compat);
Mark A. Greerb2c5f612006-09-19 14:05:08 +100092
93static inline void *finddevice(const char *name)
94{
95 return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL;
96}
97
98static inline int getprop(void *devp, const char *name, void *buf, int buflen)
99{
100 return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1;
101}
102
Scott Woodf61e7cd2007-03-16 12:28:49 -0500103static inline int setprop(void *devp, const char *name,
104 const void *buf, int buflen)
Mark A. Greerb2c5f612006-09-19 14:05:08 +1000105{
106 return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1;
107}
David Gibson27fbaa92007-03-22 17:02:21 +1100108#define setprop_val(devp, name, val) \
109 do { \
110 typeof(val) x = (val); \
111 setprop((devp), (name), &x, sizeof(x)); \
112 } while (0)
Mark A. Greerb2c5f612006-09-19 14:05:08 +1000113
Scott Wooda07940b2007-03-16 12:27:54 -0500114static inline int setprop_str(void *devp, const char *name, const char *buf)
115{
116 if (dt_ops.setprop)
117 return dt_ops.setprop(devp, name, buf, strlen(buf) + 1);
118
119 return -1;
120}
121
122static inline void *get_parent(const char *devp)
123{
124 return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL;
125}
126
127static inline void *create_node(const void *parent, const char *name)
128{
129 return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL;
130}
131
132
133static inline void *find_node_by_prop_value(const void *prev,
134 const char *propname,
135 const char *propval, int proplen)
136{
137 if (dt_ops.find_node_by_prop_value)
138 return dt_ops.find_node_by_prop_value(prev, propname,
139 propval, proplen);
140
141 return NULL;
142}
143
144static inline void *find_node_by_prop_value_str(const void *prev,
145 const char *propname,
146 const char *propval)
147{
148 return find_node_by_prop_value(prev, propname, propval,
149 strlen(propval) + 1);
150}
151
152static inline void *find_node_by_devtype(const void *prev,
153 const char *type)
154{
155 return find_node_by_prop_value_str(prev, "device_type", type);
156}
157
David Gibson27fbaa92007-03-22 17:02:21 +1100158void dt_fixup_memory(u64 start, u64 size);
159void dt_fixup_cpu_clocks(u32 cpufreq, u32 tbfreq, u32 busfreq);
160void dt_fixup_clock(const char *path, u32 freq);
161void __dt_fixup_mac_addresses(u32 startindex, ...);
162#define dt_fixup_mac_addresses(...) \
163 __dt_fixup_mac_addresses(0, __VA_ARGS__, NULL)
164
165
Mark A. Greerd6f1d2a2007-03-27 15:31:41 -0700166static inline void *find_node_by_linuxphandle(const u32 linuxphandle)
167{
168 return find_node_by_prop_value(NULL, "linux,phandle",
169 (char *)&linuxphandle, sizeof(u32));
170}
171
Geert Uytterhoeven4ca478e2007-04-18 19:24:12 +1000172static inline void *malloc(unsigned long size)
Mark A. Greerb2c5f612006-09-19 14:05:08 +1000173{
174 return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL;
175}
176
Mark A. Greerc8885542006-10-16 13:49:27 -0700177static inline void free(void *ptr)
Mark A. Greerb2c5f612006-09-19 14:05:08 +1000178{
179 if (platform_ops.free)
Mark A. Greerc8885542006-10-16 13:49:27 -0700180 platform_ops.free(ptr);
Mark A. Greerb2c5f612006-09-19 14:05:08 +1000181}
182
183static inline void exit(void)
184{
185 if (platform_ops.exit)
186 platform_ops.exit();
187 for(;;);
188}
Milton Miller6a923212007-03-21 09:02:44 -0600189#define fatal(args...) { printf(args); exit(); }
190
Mark A. Greerb2c5f612006-09-19 14:05:08 +1000191
David Gibsoncd197ff2007-03-05 14:24:52 +1100192#define BSS_STACK(size) \
193 static char _bss_stack[size]; \
194 void *_platform_stack_top = _bss_stack + sizeof(_bss_stack);
195
Scott Wood643d3c12007-08-21 03:39:45 +1000196extern unsigned long timebase_period_ns;
Scott Wood3ee9b7a2007-08-21 03:39:55 +1000197void udelay(long delay);
Scott Wood643d3c12007-08-21 03:39:45 +1000198
Mark A. Greerb2c5f612006-09-19 14:05:08 +1000199#endif /* _PPC_BOOT_OPS_H_ */