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Kumar Galaec2b74f2008-01-17 16:48:33 -06001/*
Poonam Aggrwal0e870982009-07-31 12:08:14 +05302 * Copyright 2008-2009 Freescale Semiconductor, Inc.
Kumar Galaec2b74f2008-01-17 16:48:33 -06003 *
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
Wolfgang Denk54841ab2010-06-28 22:00:46 +020027cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Kumar Galaec2b74f2008-01-17 16:48:33 -060028{
Kumar Gala79679d82008-03-26 08:34:25 -050029 unsigned long cpuid;
Kumar Galaec2b74f2008-01-17 16:48:33 -060030
Wolfgang Denk47e26b12010-07-17 01:06:04 +020031 if (argc < 3)
32 return cmd_usage(cmdtp);
Kumar Galaec2b74f2008-01-17 16:48:33 -060033
34 cpuid = simple_strtoul(argv[1], NULL, 10);
Poonam Aggrwal0e870982009-07-31 12:08:14 +053035 if (cpuid >= cpu_numcores()) {
Kumar Gala348753d2008-07-14 14:03:02 -050036 printf ("Core num: %lu is out of range[0..%d]\n",
Poonam Aggrwal0e870982009-07-31 12:08:14 +053037 cpuid, cpu_numcores() - 1);
Kumar Galaec2b74f2008-01-17 16:48:33 -060038 return 1;
39 }
40
41
42 if (argc == 3) {
Wolfgang Denk47e26b12010-07-17 01:06:04 +020043 if (strncmp(argv[2], "reset", 5) == 0)
Kumar Galaec2b74f2008-01-17 16:48:33 -060044 cpu_reset(cpuid);
Wolfgang Denk47e26b12010-07-17 01:06:04 +020045 else if (strncmp(argv[2], "status", 6) == 0)
Kumar Galaec2b74f2008-01-17 16:48:33 -060046 cpu_status(cpuid);
Wolfgang Denk47e26b12010-07-17 01:06:04 +020047 else if (strncmp(argv[2], "disable", 7) == 0)
Kumar Gala4194b362010-01-12 11:42:43 -060048 return cpu_disable(cpuid);
Wolfgang Denk47e26b12010-07-17 01:06:04 +020049 else
50 return cmd_usage(cmdtp);
51
Kumar Galaec2b74f2008-01-17 16:48:33 -060052 return 0;
53 }
54
55 /* 4 or greater, make sure its release */
Wolfgang Denk47e26b12010-07-17 01:06:04 +020056 if (strncmp(argv[2], "release", 7) != 0)
57 return cmd_usage(cmdtp);
Kumar Galaec2b74f2008-01-17 16:48:33 -060058
Wolfgang Denk47e26b12010-07-17 01:06:04 +020059 if (cpu_release(cpuid, argc - 3, argv + 3))
60 return cmd_usage(cmdtp);
Kumar Galaec2b74f2008-01-17 16:48:33 -060061
62 return 0;
63}
64
65#ifdef CONFIG_PPC
66#define CPU_ARCH_HELP \
Kumar Gala79679d82008-03-26 08:34:25 -050067 " [args] : <pir> <r3> <r6>\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060068 " pir - processor id (if writeable)\n" \
69 " r3 - value for gpr 3\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060070 " r6 - value for gpr 6\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060071 "\n" \
72 " Use '-' for any arg if you want the default value.\n" \
Kumar Gala79679d82008-03-26 08:34:25 -050073 " Default for r3 is <num> and r6 is 0\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060074 "\n" \
Kumar Gala79679d82008-03-26 08:34:25 -050075 " When cpu <num> is released r4 and r5 = 0.\n" \
Wolfgang Denka89c33d2009-05-24 17:06:54 +020076 " r7 will contain the size of the initial mapped area"
Kumar Galaec2b74f2008-01-17 16:48:33 -060077#endif
78
79U_BOOT_CMD(
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020080 cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
Peter Tyser2fb26042009-01-27 18:03:12 -060081 "Multiprocessor CPU boot manipulation and release",
Kumar Galaec2b74f2008-01-17 16:48:33 -060082 "<num> reset - Reset cpu <num>\n"
83 "cpu <num> status - Status of cpu <num>\n"
Kumar Gala4194b362010-01-12 11:42:43 -060084 "cpu <num> disable - Disable cpu <num>\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +020085 "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
Kumar Galaec2b74f2008-01-17 16:48:33 -060086#ifdef CPU_ARCH_HELP
Wolfgang Denka89c33d2009-05-24 17:06:54 +020087 "\n"
Kumar Galaec2b74f2008-01-17 16:48:33 -060088 CPU_ARCH_HELP
89#endif
Wolfgang Denka89c33d2009-05-24 17:06:54 +020090);