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