[PATCH] ARM: fix debug macros
[sfrench/cifs-2.6.git] / include / asm-arm / arch-ebsa285 / debug-macro.S
1 /* linux/include/asm-arm/arch-ebsa285/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/dec21285.h>
15
16 #ifndef CONFIG_DEBUG_DC21285_PORT
17         /* For NetWinder debugging */
18                 .macro  addruart,rx
19                 mrc     p15, 0, \rx, c1, c0
20                 tst     \rx, #1                 @ MMU enabled?
21                 moveq   \rx, #0x7c000000        @ physical
22                 movne   \rx, #0xff000000        @ virtual
23                 orr     \rx, \rx, #0x000003f8
24                 .endm
25
26                 .macro  senduart,rd,rx
27                 strb    \rd, [\rx]
28                 .endm
29
30                 .macro  busyuart,rd,rx
31 1002:           ldrb    \rd, [\rx, #0x5]
32                 and     \rd, \rd, #0x60
33                 teq     \rd, #0x60
34                 bne     1002b
35                 .endm
36
37                 .macro  waituart,rd,rx
38 1001:           ldrb    \rd, [\rx, #0x6]
39                 tst     \rd, #0x10
40                 beq     1001b
41                 .endm
42 #else
43         /* For EBSA285 debugging */
44                 .equ    dc21285_high, ARMCSR_BASE & 0xff000000
45                 .equ    dc21285_low,  ARMCSR_BASE & 0x00ffffff
46
47                 .macro  addruart,rx
48                 mrc     p15, 0, \rx, c1, c0
49                 tst     \rx, #1                 @ MMU enabled?
50                 moveq   \rx, #0x42000000
51                 movne   \rx, #dc21285_high
52                 .if     dc21285_low
53                 orrne   \rx, \rx, #dc21285_low
54                 .endif
55                 .endm
56
57                 .macro  senduart,rd,rx
58                 str     \rd, [\rx, #0x160]      @ UARTDR
59                 .endm
60
61                 .macro  busyuart,rd,rx
62 1001:           ldr     \rd, [\rx, #0x178]      @ UARTFLG
63                 tst     \rd, #1 << 3
64                 bne     1001b
65                 .endm
66
67                 .macro  waituart,rd,rx
68                 .endm
69 #endif