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/*
* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include "hardware.h"
/* board early intialization */
.globl early_board_init
early_board_init:
/* No 32-bit board specific initialisation */
jmp *%ebp /* return to caller */
.globl show_boot_progress_asm
show_boot_progress_asm:
movb %al, %dl /* Create Working Copy */
andb $0x80, %dl /* Mask in only Error bit */
shrb $0x02, %dl /* Shift Error bit to Error LED */
andb $0x0f, %al /* Mask out 'Error' bit */
orb %dl, %al /* Mask in ERR LED */
movw $LED_LATCH_ADDRESS, %dx
outb %al, %dx
jmp *%ebp /* return to caller */
.globl cpu_halt_asm
cpu_halt_asm:
movb $0x0f, %al
movw $LED_LATCH_ADDRESS, %dx
outb %al, %dx
hlt
jmp cpu_halt_asm
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