release/src-rt-6.x.4708/linux/linux-2.6.36/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
  49 int lasat_command_line;
  50 void lasatint_init(void);
  51
  52 extern void lasat_reboot_setup(void);
  53 extern void pcisetup(void);
  54 extern void edhac_init(void *, void *, void *);
  55 extern void addrflt_init(void);
  56
  57 struct 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
  67 struct lasat_misc *lasat_misc;
  68
  69 #ifdef CONFIG_DS1603
  70 static 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"
  82 static 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
  90 static 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
 102 static 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
 109 static 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
 120 void __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
 127 void __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 }