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ec2b74ff | 1 | /* |
0e870980 | 2 | * Copyright 2008-2009 Freescale Semiconductor, Inc. |
ec2b74ff KG |
3 | * |
4 | * See file CREDITS for list of people who contributed to this | |
5 | * project. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
20 | * MA 02111-1307 USA | |
21 | */ | |
22 | ||
23 | #include <common.h> | |
24 | #include <command.h> | |
25 | ||
26 | int | |
54841ab5 | 27 | cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
ec2b74ff | 28 | { |
79679d80 | 29 | unsigned long cpuid; |
ec2b74ff | 30 | |
47e26b1b WD |
31 | if (argc < 3) |
32 | return cmd_usage(cmdtp); | |
ec2b74ff KG |
33 | |
34 | cpuid = simple_strtoul(argv[1], NULL, 10); | |
0e870980 | 35 | if (cpuid >= cpu_numcores()) { |
348753d4 | 36 | printf ("Core num: %lu is out of range[0..%d]\n", |
0e870980 | 37 | cpuid, cpu_numcores() - 1); |
ec2b74ff KG |
38 | return 1; |
39 | } | |
40 | ||
41 | ||
42 | if (argc == 3) { | |
47e26b1b | 43 | if (strncmp(argv[2], "reset", 5) == 0) |
ec2b74ff | 44 | cpu_reset(cpuid); |
47e26b1b | 45 | else if (strncmp(argv[2], "status", 6) == 0) |
ec2b74ff | 46 | cpu_status(cpuid); |
47e26b1b | 47 | else if (strncmp(argv[2], "disable", 7) == 0) |
4194b366 | 48 | return cpu_disable(cpuid); |
47e26b1b WD |
49 | else |
50 | return cmd_usage(cmdtp); | |
51 | ||
ec2b74ff KG |
52 | return 0; |
53 | } | |
54 | ||
55 | /* 4 or greater, make sure its release */ | |
47e26b1b WD |
56 | if (strncmp(argv[2], "release", 7) != 0) |
57 | return cmd_usage(cmdtp); | |
ec2b74ff | 58 | |
47e26b1b WD |
59 | if (cpu_release(cpuid, argc - 3, argv + 3)) |
60 | return cmd_usage(cmdtp); | |
ec2b74ff KG |
61 | |
62 | return 0; | |
63 | } | |
64 | ||
65 | #ifdef CONFIG_PPC | |
66 | #define CPU_ARCH_HELP \ | |
79679d80 | 67 | " [args] : <pir> <r3> <r6>\n" \ |
ec2b74ff KG |
68 | " pir - processor id (if writeable)\n" \ |
69 | " r3 - value for gpr 3\n" \ | |
ec2b74ff | 70 | " r6 - value for gpr 6\n" \ |
ec2b74ff KG |
71 | "\n" \ |
72 | " Use '-' for any arg if you want the default value.\n" \ | |
79679d80 | 73 | " Default for r3 is <num> and r6 is 0\n" \ |
ec2b74ff | 74 | "\n" \ |
79679d80 | 75 | " When cpu <num> is released r4 and r5 = 0.\n" \ |
a89c33db | 76 | " r7 will contain the size of the initial mapped area" |
ec2b74ff KG |
77 | #endif |
78 | ||
79 | U_BOOT_CMD( | |
6d0f6bcf | 80 | cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd, |
2fb2604d | 81 | "Multiprocessor CPU boot manipulation and release", |
ec2b74ff KG |
82 | "<num> reset - Reset cpu <num>\n" |
83 | "cpu <num> status - Status of cpu <num>\n" | |
4194b366 | 84 | "cpu <num> disable - Disable cpu <num>\n" |
a89c33db | 85 | "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]" |
ec2b74ff | 86 | #ifdef CPU_ARCH_HELP |
a89c33db | 87 | "\n" |
ec2b74ff KG |
88 | CPU_ARCH_HELP |
89 | #endif | |
a89c33db | 90 | ); |