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>
23 #include <asm/bootinfo.h>
26 #include <asm/jazzdma.h>
27 #include <asm/ptrace.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);
37 extern void jazz_machine_halt(void);
38 extern void jazz_machine_power_off(void);
40 static void __init jazz_time_init(struct irqaction *irq)
42 /* set the clock to 100 Hz */
43 r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);
44 setup_irq(JAZZ_TIMER_IRQ, irq);
47 static struct resource jazz_io_resources[] = {
48 { "dma1", 0x00, 0x1f, IORESOURCE_BUSY },
49 { "timer", 0x40, 0x5f, IORESOURCE_BUSY },
50 { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY },
51 { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY },
54 void __init plat_mem_setup(void)
58 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
59 add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K);
61 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
62 add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M);
64 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
65 add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M);
67 set_io_port_base(JAZZ_PORT_BASE);
69 if (mips_machtype == MACH_MIPS_MAGNUM_4000)
72 isa_slot_offset = 0xe3000000;
74 /* request I/O space for devices used on all i[345]86 PCs */
75 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
76 request_resource(&ioport_resource, jazz_io_resources + i);
78 board_timer_setup = jazz_time_init;
79 /* The RTC is outside the port address space */
81 _machine_restart = jazz_machine_restart;
82 _machine_halt = jazz_machine_halt;
83 pm_power_off = jazz_machine_power_off;
85 #warning "Somebody should check if screen_info is ok for Jazz."
87 screen_info = (struct screen_info) {
88 0, 0, /* orig-x, orig-y */
90 0, /* orig_video_page */
91 0, /* orig_video_mode */
92 160, /* orig_video_cols */
93 0, 0, 0, /* unused, ega_bx, unused */
94 64, /* orig_video_lines */
95 0, /* orig_video_isVGA */
96 16 /* orig_video_points */