2 * Setup pointers to hardware-dependent routines.
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
8 * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
9 * Copyright (C) 2001 MIPS Technologies, Inc.
11 #include <linux/eisa.h>
12 #include <linux/hdreg.h>
13 #include <linux/init.h>
14 #include <linux/ioport.h>
15 #include <linux/sched.h>
16 #include <linux/interrupt.h>
18 #include <linux/console.h>
20 #include <linux/ide.h>
22 #include <linux/screen_info.h>
24 #include <asm/bootinfo.h>
27 #include <asm/jazzdma.h>
28 #include <asm/reboot.h>
30 #include <asm/pgtable.h>
32 #include <asm/traps.h>
34 extern asmlinkage void jazz_handle_int(void);
36 extern void jazz_machine_restart(char *command);
38 void __init plat_timer_setup(struct irqaction *irq)
40 /* set the clock to 100 Hz */
41 r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);
42 setup_irq(JAZZ_TIMER_IRQ, irq);
45 static struct resource jazz_io_resources[] = {
50 .flags = IORESOURCE_BUSY
55 .flags = IORESOURCE_BUSY
59 .name = "dma page reg",
60 .flags = IORESOURCE_BUSY
65 .flags = IORESOURCE_BUSY
69 void __init plat_mem_setup(void)
73 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
74 add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K);
76 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
77 add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M);
79 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
80 add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M);
82 set_io_port_base(JAZZ_PORT_BASE);
84 if (mips_machtype == MACH_MIPS_MAGNUM_4000)
87 isa_slot_offset = 0xe3000000;
89 /* request I/O space for devices used on all i[345]86 PCs */
90 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
91 request_resource(&ioport_resource, jazz_io_resources + i);
93 /* The RTC is outside the port address space */
95 _machine_restart = jazz_machine_restart;
97 screen_info = (struct screen_info) {
98 0, 0, /* orig-x, orig-y */
100 0, /* orig_video_page */
101 0, /* orig_video_mode */
102 160, /* orig_video_cols */
103 0, 0, 0, /* unused, ega_bx, unused */
104 64, /* orig_video_lines */
105 0, /* orig_video_isVGA */
106 16 /* orig_video_points */