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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Linus Nielsen Feltzing
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include <stdbool.h>
#include "kernel.h"
#include "system.h"
#include "power.h"
#include "pcf50606.h"
void ata_reset(void)
{
and_l(~0x00080000, &GPIO_OUT);
sleep(1); /* > 25us */
or_l(0x00080000, &GPIO_OUT);
sleep(1); /* > 25us */
}
void ata_enable(bool on)
{
if(on)
and_l(~0x00040000, &GPIO_OUT);
else
or_l(0x00040000, &GPIO_OUT);
or_l(0x00040000, &GPIO_ENABLE);
or_l(0x00040000, &GPIO_FUNCTION);
}
bool ata_is_coldstart(void)
{
return (GPIO_FUNCTION & 0x00080000) == 0;
}
void ata_device_init(void)
{
#ifdef HAVE_ATA_LED_CTRL
/* Enable disk LED & ISD chip power control */
and_l(~0x00000240, &GPIO_OUT);
or_l( 0x00000240, &GPIO_ENABLE);
or_l( 0x00000200, &GPIO_FUNCTION);
#endif
/* ATA reset */
or_l(0x00080000, &GPIO_OUT);
or_l(0x00080000, &GPIO_ENABLE);
or_l(0x00080000, &GPIO_FUNCTION);
}
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