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 notifier_chain_register(&panic_notifier_list, &lasat_panic_block[i]);
170 lasat_reboot_setup();
172 board_time_init = lasat_time_init;
173 board_timer_setup = lasat_timer_setup;
176 ds1603 = &ds_defs[mips_machtype];
177 rtc_get_time = ds1603_read;
178 rtc_set_time = ds1603_set;
181 #ifdef DYNAMIC_SERIAL_INIT
184 /* Switch from prom exception handler to normal mode */
185 change_c0_status(ST0_BEV,0);
187 prom_printf("Lasat specific initialization complete\n");