u-boot/board/kup/common/kup.c

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/*
* (C) Copyright 2004
* Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mpc8xx.h>
#include "kup.h"
#include <asm/io.h>
int misc_init_f(void)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
volatile sysconf8xx_t *siu = &immap->im_siu_conf;
while (in_be32(&siu->sc_sipend) & 0x20000000) {
debug("waiting for 5V VCC\n");
}
/* RS232 / RS485 default is RS232 */
clrbits_be16(&immap->im_ioport.iop_padat, PA_RS485);
clrbits_be16(&immap->im_ioport.iop_papar, PA_RS485);
clrbits_be16(&immap->im_ioport.iop_paodr, PA_RS485);
setbits_be16(&immap->im_ioport.iop_padir, PA_RS485);
/* IO Reset min 1 msec */
setbits_be16(&immap->im_ioport.iop_padat,
(PA_RESET_IO_01 | PA_RESET_IO_02));
clrbits_be16(&immap->im_ioport.iop_papar,
(PA_RESET_IO_01 | PA_RESET_IO_02));
clrbits_be16(&immap->im_ioport.iop_paodr,
(PA_RESET_IO_01 | PA_RESET_IO_02));
setbits_be16(&immap->im_ioport.iop_padir,
(PA_RESET_IO_01 | PA_RESET_IO_02));
udelay(1000);
clrbits_be16(&immap->im_ioport.iop_padat,
(PA_RESET_IO_01 | PA_RESET_IO_02));
return (0);
}
#ifdef CONFIG_IDE_LED
void ide_led(uchar led, uchar status)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
/* We have one led for both pcmcia slots */
if (status)
clrbits_be16(&immap->im_ioport.iop_padat, PA_LED_YELLOW);
else
setbits_be16(&immap->im_ioport.iop_padat, PA_LED_YELLOW);
}
#endif
void poweron_key(void)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
clrbits_be16(&immap->im_ioport.iop_pcpar, PC_SWITCH1);
clrbits_be16(&immap->im_ioport.iop_pcdir, PC_SWITCH1);
if (in_be16(&immap->im_ioport.iop_pcdat) & (PC_SWITCH1))
setenv("key1", "off");
else
setenv("key1", "on");
}