1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
* Copyright 2008-2009 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
int
cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long cpuid;
if (argc < 3) {
cmd_usage(cmdtp);
return 1;
}
cpuid = simple_strtoul(argv[1], NULL, 10);
if (cpuid >= cpu_numcores()) {
printf ("Core num: %lu is out of range[0..%d]\n",
cpuid, cpu_numcores() - 1);
return 1;
}
if (argc == 3) {
if (strncmp(argv[2], "reset", 5) == 0) {
cpu_reset(cpuid);
} else if (strncmp(argv[2], "status", 6) == 0) {
cpu_status(cpuid);
} else if (strncmp(argv[2], "disable", 7) == 0) {
return cpu_disable(cpuid);
} else {
cmd_usage(cmdtp);
return 1;
}
return 0;
}
/* 4 or greater, make sure its release */
if (strncmp(argv[2], "release", 7) != 0) {
cmd_usage(cmdtp);
return 1;
}
if (cpu_release(cpuid, argc - 3, argv + 3)) {
cmd_usage(cmdtp);
return 1;
}
return 0;
}
#ifdef CONFIG_PPC
#define CPU_ARCH_HELP \
" [args] : <pir> <r3> <r6>\n" \
" pir - processor id (if writeable)\n" \
" r3 - value for gpr 3\n" \
" r6 - value for gpr 6\n" \
"\n" \
" Use '-' for any arg if you want the default value.\n" \
" Default for r3 is <num> and r6 is 0\n" \
"\n" \
" When cpu <num> is released r4 and r5 = 0.\n" \
" r7 will contain the size of the initial mapped area"
#endif
U_BOOT_CMD(
cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
"Multiprocessor CPU boot manipulation and release",
"<num> reset - Reset cpu <num>\n"
"cpu <num> status - Status of cpu <num>\n"
"cpu <num> disable - Disable cpu <num>\n"
"cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
#ifdef CPU_ARCH_HELP
"\n"
CPU_ARCH_HELP
#endif
);
|
