1/*
 2 * Debugging macro include header
 3 *
 4 *  Copyright (C) 1994-1999 Russell King
 5 *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
 6 *
 7 * This program is free software; you can redistribute it and/or modify
 8 * it under the terms of the GNU General Public License version 2 as
 9 * published by the Free Software Foundation.
10 *
11*/
12
13#define UART_DATA 0
14#define UART_FLAG 0x18
15#define UART_FLAG_BUSY (1 << 3)
16
17		.macro	addruart, rp, rv, tmp
18		ldr	\rp, =CONFIG_DEBUG_UART_PHYS
19		ldr	\rv, =CONFIG_DEBUG_UART_VIRT
20		.endm
21
22		.macro	senduart,rd,rx
23		str	\rd, [\rx, #UART_DATA]
24		.endm
25
26		.macro	busyuart,rd,rx
271002:		ldr	\rd, [\rx, #UART_FLAG]
28		tst	\rd, #UART_FLAG_BUSY
29		bne	1002b
30		.endm
31
32		.macro	waituart,rd,rx
331001:		ldr	\rd, [\rx, #UART_FLAG]
34		tst	\rd, #UART_FLAG_BUSY
35		bne	1001b
36		.endm