source: SVN/rincon/u-boot/common/cmd_mp.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 2.6 KB
Line 
1/*
2 * Copyright 2008 Freescale Semiconductor, Inc.
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
26int
27cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
28{
29        unsigned long cpuid;
30
31        if (argc < 3) {
32                printf ("Usage:\n%s\n", cmdtp->usage);
33                return 1;
34        }
35
36        cpuid = simple_strtoul(argv[1], NULL, 10);
37        if (cpuid >= CONFIG_NUM_CPUS) {
38                printf ("Core num: %lu is out of range[0..%d]\n",
39                                cpuid, CONFIG_NUM_CPUS - 1);
40                return 1;
41        }
42
43
44        if (argc == 3) {
45                if (strncmp(argv[2], "reset", 5) == 0) {
46                        cpu_reset(cpuid);
47                } else if (strncmp(argv[2], "status", 6) == 0) {
48                        cpu_status(cpuid);
49                } else {
50                        printf ("Usage:\n%s\n", cmdtp->usage);
51                        return 1;
52                }
53                return 0;
54        }
55
56        /* 4 or greater, make sure its release */
57        if (strncmp(argv[2], "release", 7) != 0) {
58                printf ("Usage:\n%s\n", cmdtp->usage);
59                return 1;
60        }
61
62        if (cpu_release(cpuid, argc - 3, argv + 3)) {
63                printf ("Usage:\n%s\n", cmdtp->usage);
64                return 1;
65        }
66
67        return 0;
68}
69
70#ifdef CONFIG_PPC
71#define CPU_ARCH_HELP \
72        "                         [args] : <pir> <r3> <r6>\n" \
73        "                                   pir - processor id (if writeable)\n" \
74        "                                    r3 - value for gpr 3\n" \
75        "                                    r6 - value for gpr 6\n" \
76        "\n" \
77        "     Use '-' for any arg if you want the default value.\n" \
78        "     Default for r3 is <num> and r6 is 0\n" \
79        "\n" \
80        "     When cpu <num> is released r4 and r5 = 0.\n" \
81        "     r7 will contain the size of the initial mapped area\n"
82#endif
83
84U_BOOT_CMD(
85        cpu, CFG_MAXARGS, 1, cpu_cmd,
86        "cpu     - Multiprocessor CPU boot manipulation and release\n",
87            "<num> reset                 - Reset cpu <num>\n"
88        "cpu <num> status                - Status of cpu <num>\n"
89        "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]\n"
90#ifdef CPU_ARCH_HELP
91        CPU_ARCH_HELP
92#endif
93        );
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