arm: rmobile: Add support Renesas SH73A0
[platform/kernel/u-boot.git] / common / cmd_mp.c
1 /*
2  * Copyright 2008-2009 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
26 int
27 cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
28 {
29         unsigned long cpuid;
30
31         if (argc < 3)
32                 return CMD_RET_USAGE;
33
34         cpuid = simple_strtoul(argv[1], NULL, 10);
35         if (!is_core_valid(cpuid)) {
36                 printf ("Core num: %lu is not valid\n", cpuid);
37                 return 1;
38         }
39
40
41         if (argc == 3) {
42                 if (strncmp(argv[2], "reset", 5) == 0)
43                         cpu_reset(cpuid);
44                 else if (strncmp(argv[2], "status", 6) == 0)
45                         cpu_status(cpuid);
46                 else if (strncmp(argv[2], "disable", 7) == 0)
47                         return cpu_disable(cpuid);
48                 else
49                         return CMD_RET_USAGE;
50
51                 return 0;
52         }
53
54         /* 4 or greater, make sure its release */
55         if (strncmp(argv[2], "release", 7) != 0)
56                 return CMD_RET_USAGE;
57
58         if (cpu_release(cpuid, argc - 3, argv + 3))
59                 return CMD_RET_USAGE;
60
61         return 0;
62 }
63
64 #ifdef CONFIG_PPC
65 #define CPU_ARCH_HELP \
66         "                         [args] : <pir> <r3> <r6>\n" \
67         "                                   pir - processor id (if writeable)\n" \
68         "                                    r3 - value for gpr 3\n" \
69         "                                    r6 - value for gpr 6\n" \
70         "\n" \
71         "     Use '-' for any arg if you want the default value.\n" \
72         "     Default for r3 is <num> and r6 is 0\n" \
73         "\n" \
74         "     When cpu <num> is released r4 and r5 = 0.\n" \
75         "     r7 will contain the size of the initial mapped area"
76 #endif
77
78 U_BOOT_CMD(
79         cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
80         "Multiprocessor CPU boot manipulation and release",
81             "<num> reset                 - Reset cpu <num>\n"
82         "cpu <num> status                - Status of cpu <num>\n"
83         "cpu <num> disable               - Disable cpu <num>\n"
84         "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
85 #ifdef CPU_ARCH_HELP
86         "\n"
87         CPU_ARCH_HELP
88 #endif
89 );