ed28bd012236252abd398a38b058685c79580749
[linux-2.6.git] / include / asm-arm / arch-realview / debug-macro.S
1 /* linux/include/asm-arm/arch-realview/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
14 #include <asm/hardware/amba_serial.h>
15
16                 .macro  addruart,rx
17                 mrc     p15, 0, \rx, c1, c0
18                 tst     \rx, #1                 @ MMU enabled?
19                 moveq   \rx,      #0x10000000
20                 movne   \rx,      #0xf1000000   @ virtual base
21                 orr     \rx, \rx, #0x00009000
22                 .endm
23
24                 .macro  senduart,rd,rx
25                 strb    \rd, [\rx, #UART01x_DR]
26                 .endm
27
28                 .macro  waituart,rd,rx
29 1001:           ldr     \rd, [\rx, #0x18]       @ UARTFLG
30                 tst     \rd, #1 << 5            @ UARTFLGUTXFF - 1 when full
31                 bne     1001b
32                 .endm
33
34                 .macro  busyuart,rd,rx
35 1001:           ldr     \rd, [\rx, #0x18]       @ UARTFLG
36                 tst     \rd, #1 << 3            @ UARTFLGUBUSY - 1 when busy
37                 bne     1001b
38                 .endm