xref: /OK3568_Linux_fs/u-boot/common/kgdb_stubs.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * U-Boot - stub functions for common kgdb code,
3*4882a593Smuzhiyun  *          can be overridden in board specific files
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * Copyright 2009 Analog Devices Inc.
6*4882a593Smuzhiyun  *
7*4882a593Smuzhiyun  * Licensed under the GPL-2 or later.
8*4882a593Smuzhiyun  */
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun #include <common.h>
11*4882a593Smuzhiyun #include <kgdb.h>
12*4882a593Smuzhiyun 
13*4882a593Smuzhiyun int (*debugger_exception_handler)(struct pt_regs *);
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun __attribute__((weak))
kgdb_serial_init(void)16*4882a593Smuzhiyun void kgdb_serial_init(void)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun 	puts("[on serial] ");
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun __attribute__((weak))
putDebugChar(int c)22*4882a593Smuzhiyun void putDebugChar(int c)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun 	serial_putc(c);
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun __attribute__((weak))
putDebugStr(const char * str)28*4882a593Smuzhiyun void putDebugStr(const char *str)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun #ifdef DEBUG
31*4882a593Smuzhiyun 	serial_puts(str);
32*4882a593Smuzhiyun #endif
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun 
35*4882a593Smuzhiyun __attribute__((weak))
getDebugChar(void)36*4882a593Smuzhiyun int getDebugChar(void)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun 	return serial_getc();
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun 
41*4882a593Smuzhiyun __attribute__((weak))
kgdb_interruptible(int yes)42*4882a593Smuzhiyun void kgdb_interruptible(int yes)
43*4882a593Smuzhiyun {
44*4882a593Smuzhiyun 	return;
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun __attribute__((weak))
kgdb_flush_cache_range(void * from,void * to)48*4882a593Smuzhiyun void kgdb_flush_cache_range(void *from, void *to)
49*4882a593Smuzhiyun {
50*4882a593Smuzhiyun 	flush_cache((unsigned long)from, (unsigned long)(to - from));
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun 
53*4882a593Smuzhiyun __attribute__((weak))
kgdb_flush_cache_all(void)54*4882a593Smuzhiyun void kgdb_flush_cache_all(void)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun 	if (dcache_status()) {
57*4882a593Smuzhiyun 		dcache_disable();
58*4882a593Smuzhiyun 		dcache_enable();
59*4882a593Smuzhiyun 	}
60*4882a593Smuzhiyun 	if (icache_status()) {
61*4882a593Smuzhiyun 		icache_disable();
62*4882a593Smuzhiyun 		icache_enable();
63*4882a593Smuzhiyun 	}
64*4882a593Smuzhiyun }
65