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

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Carsten Langgaard, carstenl@mips.com
   4 * Copyright (C) 1999 MIPS Technologies, Inc.  All rights reserved.
   5 *
   6 * Thomas Horsten <thh@lasat.com>
   7 * Copyright (C) 2000 LASAT Networks A/S.
   8 *
   9 * Brian Murphy <brian@murphy.dk>
  10 *
  11 * Lasat specific setup.
  12 */
  13#include <linux/init.h>
  14#include <linux/sched.h>
  15#include <linux/pci.h>
  16#include <linux/interrupt.h>
  17#include <linux/tty.h>
  18
  19#include <asm/time.h>
  20#include <asm/cpu.h>
  21#include <asm/bootinfo.h>
  22#include <asm/irq.h>
  23#include <asm/lasat/lasat.h>
  24#include <asm/lasat/serial.h>
  25
  26#ifdef CONFIG_PICVUE
  27#include <linux/notifier.h>
  28#endif
  29
  30#include "ds1603.h"
  31#include <asm/lasat/ds1603.h>
  32#include <asm/lasat/picvue.h>
  33#include <asm/lasat/eeprom.h>
  34
  35#include "prom.h"
  36
  37int lasat_command_line;
  38void lasatint_init(void);
  39
  40extern void lasat_reboot_setup(void);
  41extern void pcisetup(void);
  42extern void edhac_init(void *, void *, void *);
  43extern void addrflt_init(void);
  44
  45struct lasat_misc lasat_misc_info[N_MACHTYPES] = {
  46        {
  47                .reset_reg      = (void *)KSEG1ADDR(0x1c840000),
  48                .flash_wp_reg   = (void *)KSEG1ADDR(0x1c800000), 2
  49        }, {
  50                .reset_reg      = (void *)KSEG1ADDR(0x11080000),
  51                .flash_wp_reg   = (void *)KSEG1ADDR(0x11000000), 6
  52        }
  53};
  54
  55struct lasat_misc *lasat_misc;
  56
  57#ifdef CONFIG_DS1603
  58static struct ds_defs ds_defs[N_MACHTYPES] = {
  59        { (void *)DS1603_REG_100, (void *)DS1603_REG_100,
  60                DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100,
  61                DS1603_DATA_SHIFT_100, 0, 0 },
  62        { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200,
  63                DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200,
  64                DS1603_DATA_READ_SHIFT_200, 1, 2000 }
  65};
  66#endif
  67
  68#ifdef CONFIG_PICVUE
  69#include "picvue.h"
  70static struct pvc_defs pvc_defs[N_MACHTYPES] = {
  71        { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100,
  72                PVC_E_100, PVC_RW_100, PVC_RS_100 },
  73        { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200,
  74                PVC_E_200, PVC_RW_200, PVC_RS_200 }
  75};
  76#endif
  77
  78static int lasat_panic_display(struct notifier_block *this,
  79                             unsigned long event, void *ptr)
  80{
  81#ifdef CONFIG_PICVUE
  82        unsigned char *string = ptr;
  83        if (string == NULL)
  84                string = "Kernel Panic";
  85        pvc_dump_string(string);
  86#endif
  87        return NOTIFY_DONE;
  88}
  89
  90static int lasat_panic_prom_monitor(struct notifier_block *this,
  91                             unsigned long event, void *ptr)
  92{
  93        prom_monitor();
  94        return NOTIFY_DONE;
  95}
  96
  97static struct notifier_block lasat_panic_block[] =
  98{
  99        {
 100                .notifier_call  = lasat_panic_display,
 101                .priority       = INT_MAX
 102        }, {
 103                .notifier_call  = lasat_panic_prom_monitor,
 104                .priority       = INT_MIN
 105        }
 106};
 107
 108void __init plat_time_init(void)
 109{
 110        mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2;
 111
 112        change_c0_status(ST0_IM, IE_IRQ0);
 113}
 114
 115void __init plat_mem_setup(void)
 116{
 117        int i;
 118        int lasat_type = IS_LASAT_200() ? 1 : 0;
 119
 120        lasat_misc  = &lasat_misc_info[lasat_type];
 121#ifdef CONFIG_PICVUE
 122        picvue = &pvc_defs[lasat_type];
 123#endif
 124
 125        /* Set up panic notifier */
 126        for (i = 0; i < ARRAY_SIZE(lasat_panic_block); i++)
 127                atomic_notifier_chain_register(&panic_notifier_list,
 128                                &lasat_panic_block[i]);
 129
 130        lasat_reboot_setup();
 131
 132#ifdef CONFIG_DS1603
 133        ds1603 = &ds_defs[lasat_type];
 134#endif
 135
 136#ifdef DYNAMIC_SERIAL_INIT
 137        serial_init();
 138#endif
 139
 140        pr_info("Lasat specific initialization complete\n");
 141}
 142