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/config.h>
12 #include <linux/eisa.h>
13 #include <linux/hdreg.h>
14 #include <linux/init.h>
15 #include <linux/ioport.h>
16 #include <linux/sched.h>
17 #include <linux/interrupt.h>
19 #include <linux/console.h>
21 #include <linux/ide.h>
22 #include <asm/bootinfo.h>
25 #include <asm/jazzdma.h>
26 #include <asm/ptrace.h>
27 #include <asm/reboot.h>
29 #include <asm/pgtable.h>
31 #include <asm/traps.h>
33 extern asmlinkage void jazz_handle_int(void);
35 extern void jazz_machine_restart(char *command);
36 extern void jazz_machine_halt(void);
37 extern void jazz_machine_power_off(void);
39 static void __init jazz_time_init(struct irqaction *irq)
41 /* set the clock to 100 Hz */
42 r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);
43 setup_irq(JAZZ_TIMER_IRQ, irq);
46 static struct resource jazz_io_resources[] = {
47 { "dma1", 0x00, 0x1f, IORESOURCE_BUSY },
48 { "timer", 0x40, 0x5f, IORESOURCE_BUSY },
49 { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY },
50 { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY },
53 void __init plat_setup(void)
57 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
58 add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K);
60 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
61 add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M);
63 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
64 add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M);
66 set_io_port_base(JAZZ_PORT_BASE);
68 if (mips_machtype == MACH_MIPS_MAGNUM_4000)
71 isa_slot_offset = 0xe3000000;
73 /* request I/O space for devices used on all i[345]86 PCs */
74 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
75 request_resource(&ioport_resource, jazz_io_resources + i);
77 board_timer_setup = jazz_time_init;
78 /* The RTC is outside the port address space */
80 _machine_restart = jazz_machine_restart;
81 _machine_halt = jazz_machine_halt;
82 _machine_power_off = jazz_machine_power_off;
84 #warning "Somebody should check if screen_info is ok for Jazz."
86 screen_info = (struct screen_info) {
87 0, 0, /* orig-x, orig-y */
89 0, /* orig_video_page */
90 0, /* orig_video_mode */
91 160, /* orig_video_cols */
92 0, 0, 0, /* unused, ega_bx, unused */
93 64, /* orig_video_lines */
94 0, /* orig_video_isVGA */
95 16 /* orig_video_points */