/* * 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 ldr \rp, =CONFIG_DEBUG_UART_PHYS ldr \rv, =CONFIG_DEBUG_UART_VIRT .endm .macro senduart,rd,rx str \rd, [\rx, #UART_DATA] .endm .macro busyuart,rd,rx1002: ldr \rd, [\rx, #UART_FLAG] tst \rd, #UART_FLAG_BUSY bne 1002b .endm .macro waituart,rd,rx1001: ldr \rd, [\rx, #UART_FLAG] tst \rd, #UART_FLAG_BUSY bne 1001b .endm
/*
* 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
ldr \rp, =CONFIG_DEBUG_UART_PHYS
ldr \rv, =CONFIG_DEBUG_UART_VIRT
.endm
.macro senduart,rd,rx
str \rd, [\rx, #UART_DATA]
.endm
.macro busyuart,rd,rx
1002: ldr \rd, [\rx, #UART_FLAG]
tst \rd, #UART_FLAG_BUSY
bne 1002b
.endm
.macro waituart,rd,rx
1001: ldr \rd, [\rx, #UART_FLAG]
tst \rd, #UART_FLAG_BUSY
bne 1001b
.endm