Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Carsten Langgaard, carstenl@mips.com |
| 3 | * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. |
| 4 | * |
| 5 | * This program is free software; you can distribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License (Version 2) as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along |
| 15 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| 17 | * |
| 18 | * Display routines for display messages in MIPS boards ascii display. |
| 19 | */ |
| 20 | |
| 21 | #include <linux/compiler.h> |
| 22 | #include <asm/io.h> |
| 23 | #include <asm/mips-boards/generic.h> |
| 24 | |
| 25 | void mips_display_message(const char *str) |
| 26 | { |
Ralf Baechle | f197465 | 2007-04-26 15:46:24 +0100 | [diff] [blame^] | 27 | static unsigned int __iomem *display = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | int i; |
| 29 | |
| 30 | if (unlikely(display == NULL)) |
Ralf Baechle | f197465 | 2007-04-26 15:46:24 +0100 | [diff] [blame^] | 31 | display = ioremap(ASCII_DISPLAY_POS_BASE, 16*sizeof(int)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
| 33 | for (i = 0; i <= 14; i=i+2) { |
| 34 | if (*str) |
Ralf Baechle | f197465 | 2007-04-26 15:46:24 +0100 | [diff] [blame^] | 35 | writel(*str++, display + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | else |
Ralf Baechle | f197465 | 2007-04-26 15:46:24 +0100 | [diff] [blame^] | 37 | writel(' ', display + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | } |
| 39 | } |