1/*
2 * Setup pointers to hardware-dependent routines.
3 *
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
6 * for more details.
7 *
8 * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
9 * Copyright (C) 2001 MIPS Technologies, Inc.
10 */
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>
17#include <linux/mm.h>
18#include <linux/console.h>
19#include <linux/fb.h>
20#include <linux/ide.h>
21#include <linux/pm.h>
22#include <linux/screen_info.h>
23
24#include <asm/bootinfo.h>
25#include <asm/irq.h>
26#include <asm/jazz.h>
27#include <asm/jazzdma.h>
28#include <asm/reboot.h>
29#include <asm/io.h>
30#include <asm/pgtable.h>
31#include <asm/time.h>
32#include <asm/traps.h>
33
34extern asmlinkage void jazz_handle_int(void);
35
36extern void jazz_machine_restart(char *command);
37extern void jazz_machine_halt(void);
38extern void jazz_machine_power_off(void);
39
40void __init plat_timer_setup(struct irqaction *irq)
41{
42	/* set the clock to 100 Hz */
43	r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);
44	setup_irq(JAZZ_TIMER_IRQ, irq);
45}
46
47static struct resource jazz_io_resources[] = {
48	{
49		.start	= 0x00,
50		.end	= 0x1f,
51		.name	= "dma1",
52		.flags	= IORESOURCE_BUSY
53	}, {
54		.start	= 0x40,
55		.end	= 0x5f,
56		.name	= "timer",
57		.flags	= IORESOURCE_BUSY
58	}, {
59		.start	= 0x80,
60		.end	= 0x8f,
61		.name	= "dma page reg",
62		.flags	= IORESOURCE_BUSY
63	}, {
64		.start	= 0xc0,
65		.end	= 0xdf,
66		.name	= "dma2",
67		.flags	= IORESOURCE_BUSY
68	}
69};
70
71void __init plat_mem_setup(void)
72{
73	int i;
74
75	/* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */
76	add_wired_entry (0x02000017, 0x03c00017, 0xe0000000, PM_64K);
77
78	/* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */
79	add_wired_entry (0x02400017, 0x02440017, 0xe2000000, PM_16M);
80
81	/* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */
82	add_wired_entry (0x01800017, 0x01000017, 0xe4000000, PM_4M);
83
84	set_io_port_base(JAZZ_PORT_BASE);
85#ifdef CONFIG_EISA
86	if (mips_machtype == MACH_MIPS_MAGNUM_4000)
87		EISA_bus = 1;
88#endif
89	isa_slot_offset = 0xe3000000;
90
91	/* request I/O space for devices used on all i[345]86 PCs */
92	for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++)
93		request_resource(&ioport_resource, jazz_io_resources + i);
94
95	/* The RTC is outside the port address space */
96
97	_machine_restart = jazz_machine_restart;
98	_machine_halt = jazz_machine_halt;
99	pm_power_off = jazz_machine_power_off;
100
101	screen_info = (struct screen_info) {
102		0, 0,		/* orig-x, orig-y */
103		0,		/* unused */
104		0,		/* orig_video_page */
105		0,		/* orig_video_mode */
106		160,		/* orig_video_cols */
107		0, 0, 0,	/* unused, ega_bx, unused */
108		64,		/* orig_video_lines */
109		0,		/* orig_video_isVGA */
110		16		/* orig_video_points */
111	};
112
113	vdma_init();
114}
115