1/* 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
19		orreq	\rx, \rx, #0x00200000	@ physical
20		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
35