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/arch/sh/boards/sh2000/setup.c

https://bitbucket.org/evzijst/gittest
C | 71 lines | 41 code | 11 blank | 19 comment | 7 complexity | efb81c4afd13d49d1b3c4f6cd6baaf79 MD5 | raw file
 1/*
 2 * linux/arch/sh/kernel/setup_sh2000.c
 3 *
 4 * Copyright (C) 2001  SUGIOKA Tochinobu
 5 *
 6 * SH-2000 Support.
 7 *
 8 */
 9
10#include <linux/config.h>
11#include <linux/init.h>
12#include <linux/irq.h>
13
14#include <asm/io.h>
15#include <asm/machvec.h>
16#include <asm/mach/sh2000.h>
17
18#define CF_CIS_BASE	0xb4200000
19
20#define PORT_PECR	0xa4000108
21#define PORT_PHCR	0xa400010E
22#define	PORT_ICR1	0xa4000010
23#define	PORT_IRR0	0xa4000004
24
25#define IDE_OFFSET	0xb6200000
26#define NIC_OFFSET	0xb6000000
27#define EXTBUS_OFFSET	0xba000000
28
29
30const char *get_system_type(void)
31{
32	return "sh2000";
33}
34
35static unsigned long sh2000_isa_port2addr(unsigned long offset)
36{
37	if((offset & ~7) == 0x1f0 || offset == 0x3f6)
38		return IDE_OFFSET + offset;
39	else if((offset & ~0x1f) == 0x300)
40		return NIC_OFFSET + offset;
41	return EXTBUS_OFFSET + offset;
42}
43
44/*
45 * The Machine Vector
46 */
47struct sh_machine_vector mv_sh2000 __initmv = {
48        .mv_nr_irqs		= 80,
49        .mv_isa_port2addr	= sh2000_isa_port2addr,
50};
51ALIAS_MV(sh2000)
52
53/*
54 * Initialize the board
55 */
56int __init platform_setup(void)
57{
58	/* XXX: RTC setting comes here */
59
60	/* These should be done by BIOS/IPL ... */
61	/* Enable nCE2A, nCE2B output */
62	ctrl_outw(ctrl_inw(PORT_PECR) & ~0xf00, PORT_PECR);
63	/* Enable the Compact Flash card, and set the level interrupt */
64	ctrl_outw(0x0042, CF_CIS_BASE+0x0200);
65	/* Enable interrupt */
66	ctrl_outw(ctrl_inw(PORT_PHCR) & ~0x03f3, PORT_PHCR);
67	ctrl_outw(1, PORT_ICR1);
68	ctrl_outw(ctrl_inw(PORT_IRR0) & ~0xff3f, PORT_IRR0);
69	printk(KERN_INFO "SH-2000 Setup...done\n");
70	return 0;
71}