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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Kumar Galaec2b74f2008-01-17 16:48:33 -06002/*
Poonam Aggrwal0e870982009-07-31 12:08:14 +05303 * Copyright 2008-2009 Freescale Semiconductor, Inc.
Kumar Galaec2b74f2008-01-17 16:48:33 -06004 */
5
6#include <common.h>
7#include <command.h>
Simon Glass62f9b652019-11-14 12:57:09 -07008#include <cpu_func.h>
Kumar Galaec2b74f2008-01-17 16:48:33 -06009
Michal Simek711e5e22015-06-22 10:46:40 +020010static int cpu_status_all(void)
11{
12 unsigned long cpuid;
13
14 for (cpuid = 0; ; cpuid++) {
15 if (!is_core_valid(cpuid)) {
16 if (cpuid == 0) {
17 printf("Core num: %lu is not valid\n", cpuid);
18 return 1;
19 }
20 break;
21 }
22 cpu_status(cpuid);
23 }
24
25 return 0;
26}
27
Kim Phillips088f1b12012-10-29 13:34:31 +000028static int
Wolfgang Denk54841ab2010-06-28 22:00:46 +020029cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Kumar Galaec2b74f2008-01-17 16:48:33 -060030{
Kumar Gala79679d82008-03-26 08:34:25 -050031 unsigned long cpuid;
Kumar Galaec2b74f2008-01-17 16:48:33 -060032
Michal Simek711e5e22015-06-22 10:46:40 +020033 if (argc == 2 && strncmp(argv[1], "status", 6) == 0)
34 return cpu_status_all();
35
Wolfgang Denk47e26b12010-07-17 01:06:04 +020036 if (argc < 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +000037 return CMD_RET_USAGE;
Kumar Galaec2b74f2008-01-17 16:48:33 -060038
39 cpuid = simple_strtoul(argv[1], NULL, 10);
Timur Tabifbb9ecf2011-08-05 16:15:24 -050040 if (!is_core_valid(cpuid)) {
41 printf ("Core num: %lu is not valid\n", cpuid);
Kumar Galaec2b74f2008-01-17 16:48:33 -060042 return 1;
43 }
44
45
46 if (argc == 3) {
Wolfgang Denk47e26b12010-07-17 01:06:04 +020047 if (strncmp(argv[2], "reset", 5) == 0)
Kumar Galaec2b74f2008-01-17 16:48:33 -060048 cpu_reset(cpuid);
Wolfgang Denk47e26b12010-07-17 01:06:04 +020049 else if (strncmp(argv[2], "status", 6) == 0)
Kumar Galaec2b74f2008-01-17 16:48:33 -060050 cpu_status(cpuid);
Wolfgang Denk47e26b12010-07-17 01:06:04 +020051 else if (strncmp(argv[2], "disable", 7) == 0)
Kumar Gala4194b362010-01-12 11:42:43 -060052 return cpu_disable(cpuid);
Wolfgang Denk47e26b12010-07-17 01:06:04 +020053 else
Simon Glass4c12eeb2011-12-10 08:44:01 +000054 return CMD_RET_USAGE;
Wolfgang Denk47e26b12010-07-17 01:06:04 +020055
Kumar Galaec2b74f2008-01-17 16:48:33 -060056 return 0;
57 }
58
59 /* 4 or greater, make sure its release */
Wolfgang Denk47e26b12010-07-17 01:06:04 +020060 if (strncmp(argv[2], "release", 7) != 0)
Simon Glass4c12eeb2011-12-10 08:44:01 +000061 return CMD_RET_USAGE;
Kumar Galaec2b74f2008-01-17 16:48:33 -060062
Wolfgang Denk47e26b12010-07-17 01:06:04 +020063 if (cpu_release(cpuid, argc - 3, argv + 3))
Simon Glass4c12eeb2011-12-10 08:44:01 +000064 return CMD_RET_USAGE;
Kumar Galaec2b74f2008-01-17 16:48:33 -060065
66 return 0;
67}
68
Kim Phillips088f1b12012-10-29 13:34:31 +000069#ifdef CONFIG_SYS_LONGHELP
70static char cpu_help_text[] =
71 "<num> reset - Reset cpu <num>\n"
Michal Simek711e5e22015-06-22 10:46:40 +020072 "cpu status - Status of all cpus\n"
Kim Phillips088f1b12012-10-29 13:34:31 +000073 "cpu <num> status - Status of cpu <num>\n"
74 "cpu <num> disable - Disable cpu <num>\n"
75 "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
Kumar Galaec2b74f2008-01-17 16:48:33 -060076#ifdef CONFIG_PPC
Kim Phillips088f1b12012-10-29 13:34:31 +000077 "\n"
Kumar Gala79679d82008-03-26 08:34:25 -050078 " [args] : <pir> <r3> <r6>\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060079 " pir - processor id (if writeable)\n" \
80 " r3 - value for gpr 3\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060081 " r6 - value for gpr 6\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060082 "\n" \
83 " Use '-' for any arg if you want the default value.\n" \
Kumar Gala79679d82008-03-26 08:34:25 -050084 " Default for r3 is <num> and r6 is 0\n" \
Kumar Galaec2b74f2008-01-17 16:48:33 -060085 "\n" \
Kumar Gala79679d82008-03-26 08:34:25 -050086 " When cpu <num> is released r4 and r5 = 0.\n" \
Wolfgang Denka89c33d2009-05-24 17:06:54 +020087 " r7 will contain the size of the initial mapped area"
Kumar Galaec2b74f2008-01-17 16:48:33 -060088#endif
Kim Phillips088f1b12012-10-29 13:34:31 +000089 "";
90#endif
Kumar Galaec2b74f2008-01-17 16:48:33 -060091
92U_BOOT_CMD(
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020093 cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
Kim Phillips088f1b12012-10-29 13:34:31 +000094 "Multiprocessor CPU boot manipulation and release", cpu_help_text
Wolfgang Denka89c33d2009-05-24 17:06:54 +020095);