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kernel/linux-rt-4.4.41/arch/arm/include/debug/asm9260.S 753 Bytes
5113f6f70   김현기   kernel add
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  /* Debugging macro include header
   *
   *  Copyright (C) 1994-1999 Russell King
   *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
   *  Modified for ASM9260 by Oleksij Remepl <linux@rempel-privat.de>
   *
   * 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, rp, rv, tmp
  		ldr	\rp, = CONFIG_DEBUG_UART_PHYS
  		ldr	\rv, = CONFIG_DEBUG_UART_VIRT
  		.endm
  
  		.macro	waituart,rd,rx
  		.endm
  
  		.macro	senduart,rd,rx
  		str	\rd, [\rx, #0x50]	@ TXDATA
  		.endm
  
  		.macro	busyuart,rd,rx
  1002:		ldr	\rd, [\rx, #0x60]	@ STAT
  		tst	\rd, #1 << 27		@ TXEMPTY
  		beq	1002b			@ wait until transmit done
  		.endm