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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* linux/include/asm-arm/arch-imx/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 mrc p15, 0, \rx, c1, c0
16 tst \rx, #1 @ MMU enabled?
17 moveq \rx, #0x00000000 @ physical
18 movne \rx, #0xe0000000 @ virtual
Sascha Hauer216251c2006-05-07 18:56:27 +010019 orreq \rx, \rx, #0x00200000 @ physical
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 orr \rx, \rx, #0x00006000 @ UART1 offset
21 .endm
22
23 .macro senduart,rd,rx
24 str \rd, [\rx, #0x40] @ TXDATA
25 .endm
26
27 .macro waituart,rd,rx
28 .endm
29
30 .macro busyuart,rd,rx
311002: ldr \rd, [\rx, #0x98] @ SR2
32 tst \rd, #1 << 3 @ TXDC
33 beq 1002b @ wait until transmit done
34 .endm