| // SPDX-License-Identifier: GPL-2.0+ | |
| /* | |
| * The 'cpuid' command provides access to the CPU's cpuid information | |
| * | |
| * Copyright 2024 Google, LLC | |
| * Written by Simon Glass <sjg@chromium.org> | |
| */ | |
| #include <command.h> | |
| #include <vsprintf.h> | |
| #include <asm/cpu.h> | |
| static int do_cpuid(struct cmd_tbl *cmdtp, int flag, int argc, | |
| char *const argv[]) | |
| { | |
| struct cpuid_result res; | |
| ulong op; | |
| if (argc < 2) | |
| return CMD_RET_USAGE; | |
| op = hextoul(argv[1], NULL); | |
| res = cpuid(op); | |
| printf("eax %08x\n", res.eax); | |
| printf("ebx %08x\n", res.ebx); | |
| printf("ecx %08x\n", res.ecx); | |
| printf("edx %08x\n", res.edx); | |
| return 0; | |
| } | |
| U_BOOT_LONGHELP(cpuid, "Show CPU Identification information"); | |
| U_BOOT_CMD( | |
| cpuid, 2, 1, do_cpuid, | |
| "cpuid <op>", cpuid_help_text | |
| ); |