LXR uboot/board/kup/common/kup.c

   1/*
   2 * (C) Copyright 2004
   3 * Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.de.
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24#include <common.h>
  25#include <mpc8xx.h>
  26#include "kup.h"
  27#include <asm/io.h>
  28
  29
  30int misc_init_f(void)
  31{
  32        volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
  33        volatile sysconf8xx_t *siu = &immap->im_siu_conf;
  34
  35        while (in_be32(&siu->sc_sipend) & 0x20000000) {
  36                debug("waiting for 5V VCC\n");
  37        }
  38
  39        /* RS232 / RS485 default is RS232 */
  40        clrbits_be16(&immap->im_ioport.iop_padat, PA_RS485);
  41        clrbits_be16(&immap->im_ioport.iop_papar, PA_RS485);
  42        clrbits_be16(&immap->im_ioport.iop_paodr, PA_RS485);
  43        setbits_be16(&immap->im_ioport.iop_padir, PA_RS485);
  44
  45        /* IO Reset min 1 msec */
  46        setbits_be16(&immap->im_ioport.iop_padat,
  47                                 (PA_RESET_IO_01 | PA_RESET_IO_02));
  48        clrbits_be16(&immap->im_ioport.iop_papar,
  49                                 (PA_RESET_IO_01 | PA_RESET_IO_02));
  50        clrbits_be16(&immap->im_ioport.iop_paodr,
  51                                 (PA_RESET_IO_01 | PA_RESET_IO_02));
  52        setbits_be16(&immap->im_ioport.iop_padir,
  53                                 (PA_RESET_IO_01 | PA_RESET_IO_02));
  54        udelay(1000);
  55        clrbits_be16(&immap->im_ioport.iop_padat,
  56                                 (PA_RESET_IO_01 | PA_RESET_IO_02));
  57        return (0);
  58}
  59
  60#ifdef CONFIG_IDE_LED
  61void ide_led(uchar led, uchar status)
  62{
  63        volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
  64
  65        /* We have one led for both pcmcia slots */
  66        if (status)
  67                clrbits_be16(&immap->im_ioport.iop_padat, PA_LED_YELLOW);
  68        else
  69                setbits_be16(&immap->im_ioport.iop_padat, PA_LED_YELLOW);
  70}
  71#endif
  72
  73void poweron_key(void)
  74{
  75        volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
  76
  77        clrbits_be16(&immap->im_ioport.iop_pcpar, PC_SWITCH1);
  78        clrbits_be16(&immap->im_ioport.iop_pcdir, PC_SWITCH1);
  79
  80        if (in_be16(&immap->im_ioport.iop_pcdat) & (PC_SWITCH1))
  81                setenv("key1", "off");
  82        else
  83                setenv("key1", "on");
  84}
  85