1*2e192b24SSimon Glass /*
2*2e192b24SSimon Glass * Copyright 2008-2009 Freescale Semiconductor, Inc.
3*2e192b24SSimon Glass *
4*2e192b24SSimon Glass * SPDX-License-Identifier: GPL-2.0+
5*2e192b24SSimon Glass */
6*2e192b24SSimon Glass
7*2e192b24SSimon Glass #include <common.h>
8*2e192b24SSimon Glass #include <command.h>
9*2e192b24SSimon Glass
cpu_status_all(void)10*2e192b24SSimon Glass static int cpu_status_all(void)
11*2e192b24SSimon Glass {
12*2e192b24SSimon Glass unsigned long cpuid;
13*2e192b24SSimon Glass
14*2e192b24SSimon Glass for (cpuid = 0; ; cpuid++) {
15*2e192b24SSimon Glass if (!is_core_valid(cpuid)) {
16*2e192b24SSimon Glass if (cpuid == 0) {
17*2e192b24SSimon Glass printf("Core num: %lu is not valid\n", cpuid);
18*2e192b24SSimon Glass return 1;
19*2e192b24SSimon Glass }
20*2e192b24SSimon Glass break;
21*2e192b24SSimon Glass }
22*2e192b24SSimon Glass cpu_status(cpuid);
23*2e192b24SSimon Glass }
24*2e192b24SSimon Glass
25*2e192b24SSimon Glass return 0;
26*2e192b24SSimon Glass }
27*2e192b24SSimon Glass
28*2e192b24SSimon Glass static int
cpu_cmd(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])29*2e192b24SSimon Glass cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
30*2e192b24SSimon Glass {
31*2e192b24SSimon Glass unsigned long cpuid;
32*2e192b24SSimon Glass
33*2e192b24SSimon Glass if (argc == 2 && strncmp(argv[1], "status", 6) == 0)
34*2e192b24SSimon Glass return cpu_status_all();
35*2e192b24SSimon Glass
36*2e192b24SSimon Glass if (argc < 3)
37*2e192b24SSimon Glass return CMD_RET_USAGE;
38*2e192b24SSimon Glass
39*2e192b24SSimon Glass cpuid = simple_strtoul(argv[1], NULL, 10);
40*2e192b24SSimon Glass if (!is_core_valid(cpuid)) {
41*2e192b24SSimon Glass printf ("Core num: %lu is not valid\n", cpuid);
42*2e192b24SSimon Glass return 1;
43*2e192b24SSimon Glass }
44*2e192b24SSimon Glass
45*2e192b24SSimon Glass
46*2e192b24SSimon Glass if (argc == 3) {
47*2e192b24SSimon Glass if (strncmp(argv[2], "reset", 5) == 0)
48*2e192b24SSimon Glass cpu_reset(cpuid);
49*2e192b24SSimon Glass else if (strncmp(argv[2], "status", 6) == 0)
50*2e192b24SSimon Glass cpu_status(cpuid);
51*2e192b24SSimon Glass else if (strncmp(argv[2], "disable", 7) == 0)
52*2e192b24SSimon Glass return cpu_disable(cpuid);
53*2e192b24SSimon Glass else
54*2e192b24SSimon Glass return CMD_RET_USAGE;
55*2e192b24SSimon Glass
56*2e192b24SSimon Glass return 0;
57*2e192b24SSimon Glass }
58*2e192b24SSimon Glass
59*2e192b24SSimon Glass /* 4 or greater, make sure its release */
60*2e192b24SSimon Glass if (strncmp(argv[2], "release", 7) != 0)
61*2e192b24SSimon Glass return CMD_RET_USAGE;
62*2e192b24SSimon Glass
63*2e192b24SSimon Glass if (cpu_release(cpuid, argc - 3, argv + 3))
64*2e192b24SSimon Glass return CMD_RET_USAGE;
65*2e192b24SSimon Glass
66*2e192b24SSimon Glass return 0;
67*2e192b24SSimon Glass }
68*2e192b24SSimon Glass
69*2e192b24SSimon Glass #ifdef CONFIG_SYS_LONGHELP
70*2e192b24SSimon Glass static char cpu_help_text[] =
71*2e192b24SSimon Glass "<num> reset - Reset cpu <num>\n"
72*2e192b24SSimon Glass "cpu status - Status of all cpus\n"
73*2e192b24SSimon Glass "cpu <num> status - Status of cpu <num>\n"
74*2e192b24SSimon Glass "cpu <num> disable - Disable cpu <num>\n"
75*2e192b24SSimon Glass "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
76*2e192b24SSimon Glass #ifdef CONFIG_PPC
77*2e192b24SSimon Glass "\n"
78*2e192b24SSimon Glass " [args] : <pir> <r3> <r6>\n" \
79*2e192b24SSimon Glass " pir - processor id (if writeable)\n" \
80*2e192b24SSimon Glass " r3 - value for gpr 3\n" \
81*2e192b24SSimon Glass " r6 - value for gpr 6\n" \
82*2e192b24SSimon Glass "\n" \
83*2e192b24SSimon Glass " Use '-' for any arg if you want the default value.\n" \
84*2e192b24SSimon Glass " Default for r3 is <num> and r6 is 0\n" \
85*2e192b24SSimon Glass "\n" \
86*2e192b24SSimon Glass " When cpu <num> is released r4 and r5 = 0.\n" \
87*2e192b24SSimon Glass " r7 will contain the size of the initial mapped area"
88*2e192b24SSimon Glass #endif
89*2e192b24SSimon Glass "";
90*2e192b24SSimon Glass #endif
91*2e192b24SSimon Glass
92*2e192b24SSimon Glass U_BOOT_CMD(
93*2e192b24SSimon Glass cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
94*2e192b24SSimon Glass "Multiprocessor CPU boot manipulation and release", cpu_help_text
95*2e192b24SSimon Glass );
96