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/ide.h>
31 #include <linux/interrupt.h>
35 #include <asm/bootinfo.h>
37 #include <asm/lasat/lasat.h>
39 #include <linux/tty.h>
40 #include <linux/serial.h>
41 #include <linux/serial_core.h>
42 #include <asm/serial.h>
43 #include <asm/lasat/serial.h>
46 #include <linux/notifier.h>
51 #include <asm/lasat/ds1603.h>
52 #include <asm/lasat/picvue.h>
53 #include <asm/lasat/eeprom.h>
57 int lasat_command_line = 0;
58 void lasatint_init(void);
60 #ifdef CONFIG_BLK_DEV_IDE
61 extern struct ide_ops std_ide_ops;
62 extern struct ide_ops *ide_ops;
65 extern char arcs_cmdline[CL_SIZE];
67 extern void lasat_reboot_setup(void);
68 extern void pcisetup(void);
69 extern void edhac_init(void *, void *, void *);
70 extern void addrflt_init(void);
72 struct lasat_misc lasat_misc_info[N_MACHTYPES] = {
73 {(void *)KSEG1ADDR(0x1c840000), (void *)KSEG1ADDR(0x1c800000), 2},
74 {(void *)KSEG1ADDR(0x11080000), (void *)KSEG1ADDR(0x11000000), 6}
77 struct lasat_misc *lasat_misc = NULL;
80 static struct ds_defs ds_defs[N_MACHTYPES] = {
81 { (void *)DS1603_REG_100, (void *)DS1603_REG_100,
82 DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100,
83 DS1603_DATA_SHIFT_100, 0, 0 },
84 { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200,
85 DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200,
86 DS1603_DATA_READ_SHIFT_200, 1, 2000 }
92 static struct pvc_defs pvc_defs[N_MACHTYPES] = {
93 { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100,
94 PVC_E_100, PVC_RW_100, PVC_RS_100 },
95 { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200,
96 PVC_E_200, PVC_RW_200, PVC_RS_200 }
100 static int lasat_panic_display(struct notifier_block *this,
101 unsigned long event, void *ptr)
104 unsigned char *string = ptr;
106 string = "Kernel Panic";
107 pvc_dump_string(string);
112 static int lasat_panic_prom_monitor(struct notifier_block *this,
113 unsigned long event, void *ptr)
119 static struct notifier_block lasat_panic_block[] =
121 { lasat_panic_display, NULL, INT_MAX },
122 { lasat_panic_prom_monitor, NULL, INT_MIN }
125 #ifdef CONFIG_BLK_DEV_IDE
126 static int lasat_ide_default_irq(ide_ioreg_t base) {
130 static ide_ioreg_t lasat_ide_default_io_base(int index) {
135 static void lasat_time_init(void)
137 mips_counter_frequency = lasat_board_info.li_cpu_hz / 2;
140 static void lasat_timer_setup(struct irqaction *irq)
145 mips_counter_frequency / HZ);
146 change_c0_status(ST0_IM, IE_IRQ0 | IE_IRQ5);
149 #define MIPS_CPU_TIMER_IRQ 7
150 asmlinkage void lasat_timer_interrupt(struct pt_regs *regs)
152 ll_timer_interrupt(MIPS_CPU_TIMER_IRQ, regs);
155 #define DYNAMIC_SERIAL_INIT
156 #ifdef DYNAMIC_SERIAL_INIT
157 void __init serial_init(void)
159 #ifdef CONFIG_SERIAL_8250
162 memset(&s, 0, sizeof(s));
164 s.flags = STD_COM_FLAGS|UPF_RESOURCES;
165 s.iotype = SERIAL_IO_MEM;
167 if (mips_machtype == MACH_LASAT_100) {
168 s.uartclk = LASAT_BASE_BAUD_100 * 16;
169 s.irq = LASATINT_UART_100;
170 s.regshift = LASAT_UART_REGS_SHIFT_100;
171 s.membase = (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_100);
173 s.uartclk = LASAT_BASE_BAUD_200 * 16;
174 s.irq = LASATINT_UART_200;
175 s.regshift = LASAT_UART_REGS_SHIFT_200;
176 s.membase = (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_200);
179 if (early_serial_setup(&s) != 0)
180 printk(KERN_ERR "Serial setup failed!\n");
185 void __init lasat_setup(void)
188 lasat_misc = &lasat_misc_info[mips_machtype];
190 picvue = &pvc_defs[mips_machtype];
193 /* Set up panic notifier */
194 for (i = 0; i < sizeof(lasat_panic_block) / sizeof(struct notifier_block); i++)
195 notifier_chain_register(&panic_notifier_list, &lasat_panic_block[i]);
197 #ifdef CONFIG_BLK_DEV_IDE
198 ide_ops = &std_ide_ops;
199 ide_ops->ide_default_irq = &lasat_ide_default_irq;
200 ide_ops->ide_default_io_base = &lasat_ide_default_io_base;
203 lasat_reboot_setup();
205 board_time_init = lasat_time_init;
206 board_timer_setup = lasat_timer_setup;
209 ds1603 = &ds_defs[mips_machtype];
210 rtc_get_time = ds1603_read;
211 rtc_set_time = ds1603_set;
214 #ifdef DYNAMIC_SERIAL_INIT
217 /* Switch from prom exception handler to normal mode */
218 change_c0_status(ST0_BEV,0);
220 prom_printf("Lasat specific initialization complete\n");