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}