cmd_mp.c
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/*
* Copyright 2008-2009 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
static int
cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long cpuid;
if (argc < 3)
return CMD_RET_USAGE;
cpuid = simple_strtoul(argv[1], NULL, 10);
if (!is_core_valid(cpuid)) {
printf ("Core num: %lu is not valid\n", cpuid);
return 1;
}
if (argc == 3) {
if (strncmp(argv[2], "reset", 5) == 0)
cpu_reset(cpuid);
else if (strncmp(argv[2], "status", 6) == 0)
cpu_status(cpuid);
else if (strncmp(argv[2], "disable", 7) == 0)
return cpu_disable(cpuid);
else
return CMD_RET_USAGE;
return 0;
}
/* 4 or greater, make sure its release */
if (strncmp(argv[2], "release", 7) != 0)
return CMD_RET_USAGE;
if (cpu_release(cpuid, argc - 3, argv + 3))
return CMD_RET_USAGE;
return 0;
}
#ifdef CONFIG_SYS_LONGHELP
static char cpu_help_text[] =
"<num> reset - Reset cpu <num>\n"
"cpu <num> status - Status of cpu <num>\n"
"cpu <num> disable - Disable cpu <num>\n"
"cpu <num> release <addr> [args] - Release cpu <num> at <addr> with [args]"
#ifdef CONFIG_PPC
"\n"
" [args] : <pir> <r3> <r6>\n" \
" pir - processor id (if writeable)\n" \
" r3 - value for gpr 3\n" \
" r6 - value for gpr 6\n" \
"\n" \
" Use '-' for any arg if you want the default value.\n" \
" Default for r3 is <num> and r6 is 0\n" \
"\n" \
" When cpu <num> is released r4 and r5 = 0.\n" \
" r7 will contain the size of the initial mapped area"
#endif
"";
#endif
U_BOOT_CMD(
cpu, CONFIG_SYS_MAXARGS, 1, cpu_cmd,
"Multiprocessor CPU boot manipulation and release", cpu_help_text
);