1/* SPDX-License-Identifier: GPL-2.0-only */ 2 3#include <gcccar.inc> 4#include <cpu/x86/cache.h> 5 6.code32 7.globl chipset_teardown_car 8 9chipset_teardown_car: 10 pop %esp 11 12 /* Disable cache */ 13 movl %cr0, %eax 14 orl $CR0_CacheDisable, %eax 15 movl %eax, %cr0 16 17 AMD_DISABLE_STACK 18 19 /* enable cache */ 20 movl %cr0, %eax 21 andl $(~(CR0_CD | CR0_NW)), %eax 22 movl %eax, %cr0 23 24 jmp *%esp 25