/* linux/include/asm-arm/arch-imx/debug-macro.S * * 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. **/ .macro addruart,rx mrc p15, 0, \rx, c1, c0 tst \rx, #1 @ MMU enabled? moveq \rx, #0x00000000 @ physical movne \rx, #0xe0000000 @ virtual orreq \rx, \rx, #0x00200000 @ physical orr \rx, \rx, #0x00006000 @ UART1 offset .endm .macro senduart,rd,rx str \rd, [\rx, #0x40] @ TXDATA .endm .macro waituart,rd,rx .endm .macro busyuart,rd,rx1002: ldr \rd, [\rx, #0x98] @ SR2 tst \rd, #1 << 3 @ TXDC beq 1002b @ wait until transmit done .endm
/* linux/include/asm-arm/arch-imx/debug-macro.S
*
* 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.
*
*/
.macro addruart,rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
moveq \rx, #0x00000000 @ physical
movne \rx, #0xe0000000 @ virtual
orreq \rx, \rx, #0x00200000 @ physical
orr \rx, \rx, #0x00006000 @ UART1 offset
.endm
.macro senduart,rd,rx
str \rd, [\rx, #0x40] @ TXDATA
.endm
.macro waituart,rd,rx
.endm
.macro busyuart,rd,rx
1002: ldr \rd, [\rx, #0x98] @ SR2
tst \rd, #1 << 3 @ TXDC
beq 1002b @ wait until transmit done
.endm