text: /*
   * (C) Copyright 2002
   * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <common.h>
  #include <asm/io.h>
  #include <asm/i8254.h>
  
  #define TIMER2_VALUE 0x0a8e /* 440Hz */
  
  int pcat_timer_init(void)
  {
  	/*
  	 * initialize 2, used to drive the speaker
  	 * (to start a beep: write 3 to port 0x61,
  	 * to stop it again: write 0)
  	 */
  	outb(PIT_CMD_CTR2 | PIT_CMD_BOTH | PIT_CMD_MODE3,
  			PIT_BASE + PIT_COMMAND);
  	outb(TIMER2_VALUE & 0xff, PIT_BASE + PIT_T2);
  	outb(TIMER2_VALUE >> 8, PIT_BASE + PIT_T2);
  
  	return 0;
  }
  