| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* linux/include/asm-arm/arch-ixp4xx/debug-macro.S |
| 2 | * |
| 3 | * Debugging macro include header |
| 4 | * |
| 5 | * Copyright (C) 1994-1999 Russell King |
| 6 | * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | .macro addruart,rx |
| 14 | mrc p15, 0, \rx, c1, c0 |
| 15 | tst \rx, #1 @ MMU enabled? |
| 16 | moveq \rx, #0xc8000000 |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | movne \rx, #0xff000000 |
| Deepak Saxena | b46ffae | 2005-06-27 21:48:48 +0100 | [diff] [blame] | 18 | orrne \rx, \rx, #0x00b00000 |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | add \rx,\rx,#3 @ Uart regs are at off set of 3 if |
| 20 | @ byte writes used - Big Endian. |
| 21 | .endm |
| 22 | |
| 23 | .macro senduart,rd,rx |
| 24 | strb \rd, [\rx] |
| 25 | .endm |
| 26 | |
| 27 | .macro waituart,rd,rx |
| 28 | 1002: ldrb \rd, [\rx, #0x14] |
| 29 | and \rd, \rd, #0x60 @ check THRE and TEMT bits |
| 30 | teq \rd, #0x60 |
| 31 | bne 1002b |
| 32 | .endm |
| 33 | |
| 34 | .macro busyuart,rd,rx |
| 35 | .endm |