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