u-boot/cmd/mp.c
Simon Glass 62f9b65447 common: Move older CPU functions to their own header
These should be moved to driver model, but in the meantime, move them
out of the common header to help reduce its size.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:23:06 -05:00

95 lines
2.2 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2008-2009 Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <command.h>
#include <cpu_func.h>
static int cpu_status_all(void)
{
unsigned long cpuid;
for (cpuid = 0; ; cpuid++) {
if (!is_core_valid(cpuid)) {
if (cpuid == 0) {
printf("Core num: %lu is not valid\n", cpuid);
return 1;
}
break;
}
cpu_status(cpuid);
}
return 0;
}
static int
cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long cpuid;
if (argc == 2 && strncmp(argv[1], "status", 6) == 0)
return cpu_status_all();
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 status - Status of all cpus\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
);