38 lines
752 B
C
38 lines
752 B
C
// 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 <[email protected]>
|
|
*/
|
|
|
|
#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
|
|
);
|