diff options
Diffstat (limited to 'board/sc520_cdp/sc520_cdp_asm.S')
| -rw-r--r-- | board/sc520_cdp/sc520_cdp_asm.S | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/board/sc520_cdp/sc520_cdp_asm.S b/board/sc520_cdp/sc520_cdp_asm.S deleted file mode 100644 index 3a8a03f..0000000 --- a/board/sc520_cdp/sc520_cdp_asm.S +++ /dev/null @@ -1,85 +0,0 @@ -/* - * (C) Copyright 2002 - * Daniel Engström, Omicron Ceti AB <daniel@omicron.se>. - * - * 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 - */ - -/* now setup the General purpose bus to give us access to the LEDs. - * We can then use the leds to display status information. - */ - -sc520_cdp_registers: -/* size offset value */ -.word 1 ; .word 0x040 ; .long 0x00 /* SDRAM buffer control */ -.word 2 ; .word 0xc08 ; .long 0x0001 /* GP CS offset */ -.word 2 ; .word 0xc09 ; .long 0x0003 /* GP CS width */ -.word 2 ; .word 0xc0a ; .long 0x0001 /* GP CS width */ -.word 2 ; .word 0xc0b ; .long 0x0003 /* GP RD pulse width */ -.word 2 ; .word 0xc0c ; .long 0x0001 /* GP RD offse */ -.word 2 ; .word 0xc0d ; .long 0x0003 /* GP WR pulse width */ -.word 2 ; .word 0xc0e ; .long 0x0001 /* GP WR offset */ -.word 2 ; .word 0xc2c ; .long 0x0000 /* GPIO directionreg */ -.word 2 ; .word 0xc2a ; .long 0x0000 /* GPIO directionreg */ -.word 2 ; .word 0xc22 ; .long 0xffff /* GPIO pin function 31-16 reg */ -.word 2 ; .word 0xc20 ; .long 0xffff /* GPIO pin function 15-0 reg */ -.word 2 ; .word 0x0c4 ; .long 0x28000680 /* PAR 15 for access to led 680 */ -.word 0 ; .word 0x000 ; .long 0x00 - -/* board early intialization */ -.globl early_board_init -early_board_init: - movl $sc520_cdp_registers,%esi -init_loop: - movl $0xfffef000,%edi /* MMCR base to edi */ - movw (%esi), %bx /* load sizer to bx */ - cmpw $0, %bx /* if sie is 0 we're done */ - je done - xorl %edx,%edx - movw 2(%esi), %dx /* load MMCR offset to dx */ - addl %edx, %edi /* add offset to base in edi */ - movl 4(%esi), %eax /* load value in eax */ - cmpw $1, %bx - je byte /* byte op? */ - cmpw $2, %bx - je word /* word op? */ - movl %eax, (%edi) /* must be long, then */ - jmp next -byte: movb %al,(%edi) - jmp next -word: movw %ax,(%edi) -next: addl $8, %esi /* advance esi */ - jmp init_loop - - /* the leds ad 0x80 and 0x680 should now work */ -done: movb $0x88, %al - out %al, $0x80 - movw $0x680, %dx - out %al, %dx - - jmp *%ebp /* return to caller */ - - -.globl show_boot_progress_asm -show_boot_progress_asm: - out %al, $0x80 - xchg %al, %ah - movw $0x680, %dx - out %al, %dx - jmp *%ebp |