]> git.sur5r.net Git - u-boot/blob - cmd/mp.c
efi_loader: Always use EFIAPI instead of asmlinkage
[u-boot] / cmd / mp.c
1 /*
2  * Copyright 2008-2009 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:     GPL-2.0+
5  */
6
7 #include <common.h>
8 #include <command.h>
9
10 static 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
28 static int
29 cpu_cmd(cmd_tbl_t *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 = simple_strtoul(argv[1], NULL, 10);
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
69 #ifdef CONFIG_SYS_LONGHELP
70 static char cpu_help_text[] =
71             "<num> reset                 - Reset cpu <num>\n"
72         "cpu status                      - Status of all cpus\n"
73         "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]"
76 #ifdef CONFIG_PPC
77         "\n"
78         "                         [args] : <pir> <r3> <r6>\n" \
79         "                                   pir - processor id (if writeable)\n" \
80         "                                    r3 - value for gpr 3\n" \
81         "                                    r6 - value for gpr 6\n" \
82         "\n" \
83         "     Use '-' for any arg if you want the default value.\n" \
84         "     Default for r3 is <num> and r6 is 0\n" \
85         "\n" \
86         "     When cpu <num> is released r4 and r5 = 0.\n" \
87         "     r7 will contain the size of the initial mapped area"
88 #endif
89         "";
90 #endif
91
92 U_BOOT_CMD(
93         cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
94         "Multiprocessor CPU boot manipulation and release", cpu_help_text
95 );