Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright 2011 Freescale Semiconductor, Inc.
 * Copyright 2011 Linaro Ltd.
 */
 
#include <linux/linkage.h>
#include <linux/init.h>
#include <asm/assembler.h>
 
diag_reg_offset:
<------>.word	g_diag_reg - .
 
<------>.macro	set_diag_reg
<------>adr	r0, diag_reg_offset
<------>ldr	r1, [r0]
<------>add	r1, r1, r0		@ r1 = physical &g_diag_reg
<------>ldr	r0, [r1]
<------>mcr	p15, 0, r0, c15, c0, 1	@ write diagnostic register
<------>.endm
 
ENTRY(v7_secondary_startup)
ARM_BE8(setend be)			@ go BE8 if entered LE
<------>set_diag_reg
<------>b	secondary_startup
ENDPROC(v7_secondary_startup)