| /* |
| * (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 |