init.S

/*
 * Aeolus - a program to boot the Zephyr MIPS
 * Copyright (C) 2014 Broadcom Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include "regdef.h"

	.section .init,"ax"
	.global	_start
	.ent	_start
_start:
	/* CONFIG.K0 = 0x02 (uncached kseg0) */
	li	t0, 0x02
	mtc0	t0, $16
	BARRIER

	la	t0, 1f
	jr	t0

1:
	bal	mips_init

	la	t0, _fbss
	move	sp, t0

	la	t1, _ebss
	beq	t0, t1, 2f
1:
	sw	zero, 0(t0)
	addiu	t0, 4
	bne	t0, t1, 1b

2:
	la	a0, _linux
	la	a1, _cmdline
	la	a2, _dtb_start
	la	a3, _dtb_end
	subu	a3, a2

	la	t0, main
	jr	t0

	.end	_start