2 * Carsten Langgaard, carstenl@mips.com
3 * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved.
5 * Thomas Horsten <thh@lasat.com>
6 * Copyright (C) 2000 LASAT Networks A/S.
8 * Brian Murphy <brian@murphy.dk>
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.
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
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.
23 * Lasat specific setup.
25 #include <linux/config.h>
26 #include <linux/init.h>
27 #include <linux/sched.h>
28 #include <linux/pci.h>
29 #include <linux/interrupt.h>
30 #include <linux/tty.h>
31 #include <linux/serial.h>
32 #include <linux/serial_core.h>
36 #include <asm/bootinfo.h>
38 #include <asm/serial.h>
39 #include <asm/lasat/lasat.h>
40 #include <asm/lasat/serial.h>
43 #include <linux/notifier.h>
47 #include <asm/lasat/ds1603.h>
48 #include <asm/lasat/picvue.h>
49 #include <asm/lasat/eeprom.h>
53 int lasat_command_line
= 0;
54 void lasatint_init(void);
56 extern void lasat_reboot_setup(void);
57 extern void pcisetup(void);
58 extern void edhac_init(void *, void *, void *);
59 extern void addrflt_init(void);
61 struct lasat_misc lasat_misc_info
[N_MACHTYPES
] = {
62 {(void *)KSEG1ADDR(0x1c840000), (void *)KSEG1ADDR(0x1c800000), 2},
63 {(void *)KSEG1ADDR(0x11080000), (void *)KSEG1ADDR(0x11000000), 6}
66 struct lasat_misc
*lasat_misc
= NULL
;
69 static struct ds_defs ds_defs
[N_MACHTYPES
] = {
70 { (void *)DS1603_REG_100
, (void *)DS1603_REG_100
,
71 DS1603_RST_100
, DS1603_CLK_100
, DS1603_DATA_100
,
72 DS1603_DATA_SHIFT_100
, 0, 0 },
73 { (void *)DS1603_REG_200
, (void *)DS1603_DATA_REG_200
,
74 DS1603_RST_200
, DS1603_CLK_200
, DS1603_DATA_200
,
75 DS1603_DATA_READ_SHIFT_200
, 1, 2000 }
81 static struct pvc_defs pvc_defs
[N_MACHTYPES
] = {
82 { (void *)PVC_REG_100
, PVC_DATA_SHIFT_100
, PVC_DATA_M_100
,
83 PVC_E_100
, PVC_RW_100
, PVC_RS_100
},
84 { (void *)PVC_REG_200
, PVC_DATA_SHIFT_200
, PVC_DATA_M_200
,
85 PVC_E_200
, PVC_RW_200
, PVC_RS_200
}
89 static int lasat_panic_display(struct notifier_block
*this,
90 unsigned long event
, void *ptr
)
93 unsigned char *string
= ptr
;
95 string
= "Kernel Panic";
96 pvc_dump_string(string
);
101 static int lasat_panic_prom_monitor(struct notifier_block
*this,
102 unsigned long event
, void *ptr
)
108 static struct notifier_block lasat_panic_block
[] =
110 { lasat_panic_display
, NULL
, INT_MAX
},
111 { lasat_panic_prom_monitor
, NULL
, INT_MIN
}
114 static void lasat_time_init(void)
116 mips_hpt_frequency
= lasat_board_info
.li_cpu_hz
/ 2;
119 static void lasat_timer_setup(struct irqaction
*irq
)
124 mips_hpt_frequency
/ HZ
);
125 change_c0_status(ST0_IM
, IE_IRQ0
| IE_IRQ5
);
128 #define DYNAMIC_SERIAL_INIT
129 #ifdef DYNAMIC_SERIAL_INIT
130 void __init
serial_init(void)
132 #ifdef CONFIG_SERIAL_8250
135 memset(&s
, 0, sizeof(s
));
137 s
.flags
= UPF_BOOT_AUTOCONF
| UPF_SKIP_TEST
;
140 if (mips_machtype
== MACH_LASAT_100
) {
141 s
.uartclk
= LASAT_BASE_BAUD_100
* 16;
142 s
.irq
= LASATINT_UART_100
;
143 s
.regshift
= LASAT_UART_REGS_SHIFT_100
;
144 s
.membase
= (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_100
);
146 s
.uartclk
= LASAT_BASE_BAUD_200
* 16;
147 s
.irq
= LASATINT_UART_200
;
148 s
.regshift
= LASAT_UART_REGS_SHIFT_200
;
149 s
.membase
= (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_200
);
152 if (early_serial_setup(&s
) != 0)
153 printk(KERN_ERR
"Serial setup failed!\n");
158 void __init
plat_setup(void)
161 lasat_misc
= &lasat_misc_info
[mips_machtype
];
163 picvue
= &pvc_defs
[mips_machtype
];
166 /* Set up panic notifier */
167 for (i
= 0; i
< sizeof(lasat_panic_block
) / sizeof(struct notifier_block
); i
++)
168 atomic_notifier_chain_register(&panic_notifier_list
,
169 &lasat_panic_block
[i
]);
171 lasat_reboot_setup();
173 board_time_init
= lasat_time_init
;
174 board_timer_setup
= lasat_timer_setup
;
177 ds1603
= &ds_defs
[mips_machtype
];
178 rtc_mips_get_time
= ds1603_read
;
179 rtc_mips_set_time
= ds1603_set
;
182 #ifdef DYNAMIC_SERIAL_INIT
185 /* Switch from prom exception handler to normal mode */
186 change_c0_status(ST0_BEV
,0);
188 prom_printf("Lasat specific initialization complete\n");