Linux v2.6.15-rc7
[pohmelfs.git] / include / asm-arm / arch-ixp4xx / debug-macro.S
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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.
13                 .macro  addruart,rx
14                 mrc     p15, 0, \rx, c1, c0
15                 tst     \rx, #1                 @ MMU enabled?
16                 moveq   \rx, #0xc8000000
17                 movne   \rx, #0xff000000
18                 orrne   \rx, \rx, #0x00b00000
19                 add     \rx,\rx,#3              @ Uart regs are at off set of 3 if
20                                                 @ byte writes used - Big Endian.
21                 .endm
23                .macro  senduart,rd,rx
24                 strb    \rd, [\rx]
25                 .endm
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
34                 .macro  busyuart,rd,rx
35                 .endm