LXR linux/arch/mips/lasat/setup.c

   1/*
   2 * Carsten Langgaard, carstenl@mips.com
   3 * Copyright (C) 1999 MIPS Technologies, Inc.  All rights reserved.
   4 *
   5 * Thomas Horsten <thh@lasat.com>
   6 * Copyright (C) 2000 LASAT Networks A/S.
   7 *
   8 * Brian Murphy <brian@murphy.dk>
   9 *
  10 *  This program is free software; you can distribute it and/or modify it
  11 *  under the terms of the GNU General Public License (Version 2) as
  12 *  published by the Free Software Foundation.
  13 *
  14 *  This program is distributed in the hope it will be useful, but WITHOUT
  15 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  17 *  for more details.
  18 *
  19 *  You should have received a copy of the GNU General Public License along
  20 *  with this program; if not, write to the Free Software Foundation, Inc.,
  21 *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  22 *
  23 * Lasat specific setup.
  24 */
  25#include <linux/init.h>
  26#include <linux/sched.h>
  27#include <linux/pci.h>
  28#include <linux/interrupt.h>
  29#include <linux/tty.h>
  30
  31#include <asm/time.h>
  32#include <asm/cpu.h>
  33#include <asm/bootinfo.h>
  34#include <asm/irq.h>
  35#include <asm/lasat/lasat.h>
  36#include <asm/lasat/serial.h>
  37
  38#ifdef CONFIG_PICVUE
  39#include <linux/notifier.h>
  40#endif
  41
  42#include "ds1603.h"
  43#include <asm/lasat/ds1603.h>
  44#include <asm/lasat/picvue.h>
  45#include <asm/lasat/eeprom.h>
  46
  47#include "prom.h"
  48
  49int lasat_command_line;
  50void lasatint_init(void);
  51
  52extern void lasat_reboot_setup(void);
  53extern void pcisetup(void);
  54extern void edhac_init(void *, void *, void *);
  55extern void addrflt_init(void);
  56
  57struct lasat_misc lasat_misc_info[N_MACHTYPES] = {
  58        {
  59                .reset_reg      = (void *)KSEG1ADDR(0x1c840000),
  60                .flash_wp_reg   = (void *)KSEG1ADDR(0x1c800000), 2
  61        }, {
  62                .reset_reg      = (void *)KSEG1ADDR(0x11080000),
  63                .flash_wp_reg   = (void *)KSEG1ADDR(0x11000000), 6
  64        }
  65};
  66
  67struct lasat_misc *lasat_misc;
  68
  69#ifdef CONFIG_DS1603
  70static struct ds_defs ds_defs[N_MACHTYPES] = {
  71        { (void *)DS1603_REG_100, (void *)DS1603_REG_100,
  72                DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100,
  73                DS1603_DATA_SHIFT_100, 0, 0 },
  74        { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200,
  75                DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200,
  76                DS1603_DATA_READ_SHIFT_200, 1, 2000 }
  77};
  78#endif
  79
  80#ifdef CONFIG_PICVUE
  81#include "picvue.h"
  82static struct pvc_defs pvc_defs[N_MACHTYPES] = {
  83        { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100,
  84                PVC_E_100, PVC_RW_100, PVC_RS_100 },
  85        { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200,
  86                PVC_E_200, PVC_RW_200, PVC_RS_200 }
  87};
  88#endif
  89
  90static int lasat_panic_display(struct notifier_block *this,
  91                             unsigned long event, void *ptr)
  92{
  93#ifdef CONFIG_PICVUE
  94        unsigned char *string = ptr;
  95        if (string == NULL)
  96                string = "Kernel Panic";
  97        pvc_dump_string(string);
  98#endif
  99        return NOTIFY_DONE;
 100}
 101
 102static int lasat_panic_prom_monitor(struct notifier_block *this,
 103                             unsigned long event, void *ptr)
 104{
 105        prom_monitor();
 106        return NOTIFY_DONE;
 107}
 108
 109static struct notifier_block lasat_panic_block[] =
 110{
 111        {
 112                .notifier_call  = lasat_panic_display,
 113                .priority       = INT_MAX
 114        }, {
 115                .notifier_call  = lasat_panic_prom_monitor,
 116                .priority       = INT_MIN
 117        }
 118};
 119
 120void __init plat_time_init(void)
 121{
 122        mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2;
 123
 124        change_c0_status(ST0_IM, IE_IRQ0);
 125}
 126
 127void __init plat_mem_setup(void)
 128{
 129        int i;
 130        int lasat_type = IS_LASAT_200() ? 1 : 0;
 131
 132        lasat_misc  = &lasat_misc_info[lasat_type];
 133#ifdef CONFIG_PICVUE
 134        picvue = &pvc_defs[lasat_type];
 135#endif
 136
 137        /* Set up panic notifier */
 138        for (i = 0; i < ARRAY_SIZE(lasat_panic_block); i++)
 139                atomic_notifier_chain_register(&panic_notifier_list,
 140                                &lasat_panic_block[i]);
 141
 142        lasat_reboot_setup();
 143
 144#ifdef CONFIG_DS1603
 145        ds1603 = &ds_defs[lasat_type];
 146#endif
 147
 148#ifdef DYNAMIC_SERIAL_INIT
 149        serial_init();
 150#endif
 151
 152        pr_info("Lasat specific initialization complete\n");
 153}
 154