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-rw-r--r--include/asm-arm/arch-iop3xx/debug-macro.S48
1 files changed, 48 insertions, 0 deletions
diff --git a/include/asm-arm/arch-iop3xx/debug-macro.S b/include/asm-arm/arch-iop3xx/debug-macro.S
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1/* linux/include/asm-arm/arch-iop3xx/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 .macro addruart,rx
15 mov \rx, #0xfe000000 @ physical
16#if defined(CONFIG_ARCH_IQ80321) || defined(CONFIG_ARCH_IQ31244)
17 orr \rx, \rx, #0x00800000 @ location of the UART
18#elif defined(CONFIG_ARCH_IOP331)
19 mrc p15, 0, \rx, c1, c0
20 tst \rx, #1 @ MMU enabled?
21 moveq \rx, #0x000fe000 @ Physical Base
22 movne \rx, #0
23 orr \rx, \rx, #0xfe000000
24 orr \rx, \rx, #0x00f00000 @ Virtual Base
25 orr \rx, \rx, #0x00001700 @ location of the UART
26#else
27#error Unknown IOP3XX implementation
28#endif
29 .endm
30
31 .macro senduart,rd,rx
32 strb \rd, [\rx]
33 .endm
34
35 .macro busyuart,rd,rx
361002: ldrb \rd, [\rx, #0x5]
37 and \rd, \rd, #0x60
38 teq \rd, #0x60
39 bne 1002b
40 .endm
41
42 .macro waituart,rd,rx
43#if !defined(CONFIG_ARCH_IQ80321) || !defined(CONFIG_ARCH_IQ31244) || !defined(CONFIG_ARCH_IQ80331)
441001: ldrb \rd, [\rx, #0x6]
45 tst \rd, #0x10
46 beq 1001b
47#endif
48 .endm