xref: /OK3568_Linux_fs/u-boot/arch/mips/mach-pic32/lowlevel_init.S (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun/*
2*4882a593Smuzhiyun * (c) 2015 Purna Chandra Mandal <purna.mandal@microchip.com>
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier:	GPL-2.0+
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun*/
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun#include <config.h>
9*4882a593Smuzhiyun#include <asm/regdef.h>
10*4882a593Smuzhiyun#include <asm/mipsregs.h>
11*4882a593Smuzhiyun#include <asm/asm.h>
12*4882a593Smuzhiyun
13*4882a593SmuzhiyunLEAF(lowlevel_init)
14*4882a593Smuzhiyun	/*
15*4882a593Smuzhiyun	 * Establish Cause
16*4882a593Smuzhiyun	 * (set IV bit)
17*4882a593Smuzhiyun	 */
18*4882a593Smuzhiyun	li	t1, 0x00800000
19*4882a593Smuzhiyun	mtc0	t1, CP0_CAUSE
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun	/* Establish Wired (and Random) */
22*4882a593Smuzhiyun	mtc0	zero, CP0_WIRED
23*4882a593Smuzhiyun	 nop
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun	jr	ra
26*4882a593Smuzhiyun	 nop
27*4882a593Smuzhiyun	END(lowlevel_init)
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