blob: 81e1b2af70f7ba1d0c63fdecf22d69ee01596762 [file] [log] [blame]
* Debugging macro include header
* Copyright (C) 1994-1999 Russell King
* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
#define UART_DATA 0
#define UART_FLAG 0x18
#define UART_FLAG_BUSY (1 << 3)
.macro addruart, rp, rv, tmp
.macro senduart,rd,rx
str \rd, [\rx, #UART_DATA]
.macro busyuart,rd,rx
1002: ldr \rd, [\rx, #UART_FLAG]
tst \rd, #UART_FLAG_BUSY
bne 1002b
.macro waituart,rd,rx
1001: ldr \rd, [\rx, #UART_FLAG]
tst \rd, #UART_FLAG_BUSY
bne 1001b