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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
27cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
28{
Kumar Gala79679d82008-03-26 08:34:25 -050029 unsigned long cpuid;
Kumar Galaec2b74f2008-01-17 16:48:33 -060030
31 if (argc < 3) {
Peter Tyser62c3ae72009-01-27 18:03:10 -060032 cmd_usage(cmdtp);
Kumar Galaec2b74f2008-01-17 16:48:33 -060033 return 1;
34 }
35
36 cpuid = simple_strtoul(argv[1], NULL, 10);
Poonam Aggrwal0e870982009-07-31 12:08:14 +053037 if (cpuid >= cpu_numcores()) {
Kumar Gala348753d2008-07-14 14:03:02 -050038 printf ("Core num: %lu is out of range[0..%d]\n",
Poonam Aggrwal0e870982009-07-31 12:08:14 +053039 cpuid, cpu_numcores() - 1);
Kumar Galaec2b74f2008-01-17 16:48:33 -060040 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);
Kumar Gala4194b362010-01-12 11:42:43 -060049 } else if (strncmp(argv[2], "disable", 7) == 0) {
50 return cpu_disable(cpuid);
Kumar Galaec2b74f2008-01-17 16:48:33 -060051 } else {
Peter Tyser62c3ae72009-01-27 18:03:10 -060052 cmd_usage(cmdtp);
Kumar Galaec2b74f2008-01-17 16:48:33 -060053 return 1;
54 }
55 return 0;
56 }
57
58 /* 4 or greater, make sure its release */
59 if (strncmp(argv[2], "release", 7) != 0) {
Peter Tyser62c3ae72009-01-27 18:03:10 -060060 cmd_usage(cmdtp);
Kumar Galaec2b74f2008-01-17 16:48:33 -060061 return 1;
62 }
63
Kumar Gala79679d82008-03-26 08:34:25 -050064 if (cpu_release(cpuid, argc - 3, argv + 3)) {
Peter Tyser62c3ae72009-01-27 18:03:10 -060065 cmd_usage(cmdtp);
Kumar Galaec2b74f2008-01-17 16:48:33 -060066 return 1;
67 }
68
69 return 0;
70}
71
72#ifdef CONFIG_PPC
73#define CPU_ARCH_HELP \
Kumar Gala79679d82008-03-26 08:34:25 -050074 " [args] : <pir> <r3> <r6>\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060075 " pir - processor id (if writeable)\n" \
76 " r3 - value for gpr 3\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060077 " r6 - value for gpr 6\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060078 "\n" \
79 " Use '-' for any arg if you want the default value.\n" \
Kumar Gala79679d82008-03-26 08:34:25 -050080 " Default for r3 is <num> and r6 is 0\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060081 "\n" \
Kumar Gala79679d82008-03-26 08:34:25 -050082 " When cpu <num> is released r4 and r5 = 0.\n" \
Wolfgang Denka89c33d2009-05-24 17:06:54 +020083 " r7 will contain the size of the initial mapped area"
Kumar Galaec2b74f2008-01-17 16:48:33 -060084#endif
85
86U_BOOT_CMD(
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020087 cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
Peter Tyser2fb26042009-01-27 18:03:12 -060088 "Multiprocessor CPU boot manipulation and release",
Kumar Galaec2b74f2008-01-17 16:48:33 -060089 "<num> reset - Reset cpu <num>\n"
90 "cpu <num> status - Status of cpu <num>\n"
Kumar Gala4194b362010-01-12 11:42:43 -060091 "cpu <num> disable - Disable cpu <num>\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +020092 "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
Kumar Galaec2b74f2008-01-17 16:48:33 -060093#ifdef CPU_ARCH_HELP
Wolfgang Denka89c33d2009-05-24 17:06:54 +020094 "\n"
Kumar Galaec2b74f2008-01-17 16:48:33 -060095 CPU_ARCH_HELP
96#endif
Wolfgang Denka89c33d2009-05-24 17:06:54 +020097);