diff options
Diffstat (limited to 'board/eNET/eNET_start16.S')
| -rw-r--r-- | board/eNET/eNET_start16.S | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/board/eNET/eNET_start16.S b/board/eNET/eNET_start16.S deleted file mode 100644 index 5e3f44c..0000000 --- a/board/eNET/eNET_start16.S +++ /dev/null @@ -1,87 +0,0 @@ -/* - * (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 - */ - -/* - * 16bit initialization code. - * This code have to map the area of the boot flash - * that is used by U-boot to its final destination. - */ - -#include "config.h" -#include "hardware.h" -#include <asm/arch/sc520.h> -#include <generated/asm-offsets.h> - -.text -.section .start16, "ax" -.code16 -.globl board_init16 -board_init16: - /* Alias MMCR to 0xdf000 */ - movw $0xfffc, %dx - movl $0x800df0cb, %eax - outl %eax, %dx - - /* Set ds to point to MMCR alias */ - movw $0xdf00, %ax - movw %ax, %ds - - /* Map PAR for Boot Flash (BOOTCS, 512kB @ 0x380000000) */ - movl $GENERATED_SC520_PAR14, %edi - movl $CONFIG_SYS_SC520_BOOTCS_PAR, %eax - movl %eax, (%di) - - /* Map PAR for LED, Hex Switches (GPCS6, 20 Bytes @ 0x1000) */ - movl $GENERATED_SC520_PAR15, %edi - movl $CONFIG_SYS_SC520_LLIO_PAR, %eax - movl %eax, (%di) - - /* Disabe MMCR alias */ - movw $0xfffc, %dx - movl $0x000000cb, %eax - outl %eax, %dx - - jmp board_init16_ret - -.section .bios, "ax" -.code16 -.globl realmode_reset -.hidden realmode_reset -.type realmode_reset, @function -realmode_reset: - /* Alias MMCR to 0xdf000 */ - movw $0xfffc, %dx - movl $0x800df0cb, %eax - outl %eax, %dx - - /* Set ds to point to MMCR alias */ - movw $0xdf00, %ax - movw %ax, %ds - - /* issue software reset thorugh MMCR */ - movl $0xd72, %edi - movb $0x01, %al - movb %al, (%di) - -1: hlt - jmp 1 |