1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2008-2009 Freescale Semiconductor, Inc.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <command.h>
9*4882a593Smuzhiyun
cpu_status_all(void)10*4882a593Smuzhiyun static int cpu_status_all(void)
11*4882a593Smuzhiyun {
12*4882a593Smuzhiyun unsigned long cpuid;
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun for (cpuid = 0; ; cpuid++) {
15*4882a593Smuzhiyun if (!is_core_valid(cpuid)) {
16*4882a593Smuzhiyun if (cpuid == 0) {
17*4882a593Smuzhiyun printf("Core num: %lu is not valid\n", cpuid);
18*4882a593Smuzhiyun return 1;
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun break;
21*4882a593Smuzhiyun }
22*4882a593Smuzhiyun cpu_status(cpuid);
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun return 0;
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun static int
cpu_cmd(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])29*4882a593Smuzhiyun cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun unsigned long cpuid;
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun if (argc == 2 && strncmp(argv[1], "status", 6) == 0)
34*4882a593Smuzhiyun return cpu_status_all();
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun if (argc < 3)
37*4882a593Smuzhiyun return CMD_RET_USAGE;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun cpuid = simple_strtoul(argv[1], NULL, 10);
40*4882a593Smuzhiyun if (!is_core_valid(cpuid)) {
41*4882a593Smuzhiyun printf ("Core num: %lu is not valid\n", cpuid);
42*4882a593Smuzhiyun return 1;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun if (argc == 3) {
47*4882a593Smuzhiyun if (strncmp(argv[2], "reset", 5) == 0)
48*4882a593Smuzhiyun cpu_reset(cpuid);
49*4882a593Smuzhiyun else if (strncmp(argv[2], "status", 6) == 0)
50*4882a593Smuzhiyun cpu_status(cpuid);
51*4882a593Smuzhiyun else if (strncmp(argv[2], "disable", 7) == 0)
52*4882a593Smuzhiyun return cpu_disable(cpuid);
53*4882a593Smuzhiyun else
54*4882a593Smuzhiyun return CMD_RET_USAGE;
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun return 0;
57*4882a593Smuzhiyun }
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun /* 4 or greater, make sure its release */
60*4882a593Smuzhiyun if (strncmp(argv[2], "release", 7) != 0)
61*4882a593Smuzhiyun return CMD_RET_USAGE;
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun if (cpu_release(cpuid, argc - 3, argv + 3))
64*4882a593Smuzhiyun return CMD_RET_USAGE;
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun return 0;
67*4882a593Smuzhiyun }
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun #ifdef CONFIG_SYS_LONGHELP
70*4882a593Smuzhiyun static char cpu_help_text[] =
71*4882a593Smuzhiyun "<num> reset - Reset cpu <num>\n"
72*4882a593Smuzhiyun "cpu status - Status of all cpus\n"
73*4882a593Smuzhiyun "cpu <num> status - Status of cpu <num>\n"
74*4882a593Smuzhiyun "cpu <num> disable - Disable cpu <num>\n"
75*4882a593Smuzhiyun "cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
76*4882a593Smuzhiyun #ifdef CONFIG_PPC
77*4882a593Smuzhiyun "\n"
78*4882a593Smuzhiyun " [args] : <pir> <r3> <r6>\n" \
79*4882a593Smuzhiyun " pir - processor id (if writeable)\n" \
80*4882a593Smuzhiyun " r3 - value for gpr 3\n" \
81*4882a593Smuzhiyun " r6 - value for gpr 6\n" \
82*4882a593Smuzhiyun "\n" \
83*4882a593Smuzhiyun " Use '-' for any arg if you want the default value.\n" \
84*4882a593Smuzhiyun " Default for r3 is <num> and r6 is 0\n" \
85*4882a593Smuzhiyun "\n" \
86*4882a593Smuzhiyun " When cpu <num> is released r4 and r5 = 0.\n" \
87*4882a593Smuzhiyun " r7 will contain the size of the initial mapped area"
88*4882a593Smuzhiyun #endif
89*4882a593Smuzhiyun "";
90*4882a593Smuzhiyun #endif
91*4882a593Smuzhiyun
92*4882a593Smuzhiyun U_BOOT_CMD(
93*4882a593Smuzhiyun cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
94*4882a593Smuzhiyun "Multiprocessor CPU boot manipulation and release", cpu_help_text
95*4882a593Smuzhiyun );
96