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/arch/sh/boards/ec3104/setup.c

https://bitbucket.org/evzijst/gittest
C | 78 lines | 41 code | 17 blank | 20 comment | 3 complexity | c06a7cfa65ba6321a068f6a7914eea1a MD5 | raw file
 1/*
 2 * linux/arch/sh/boards/ec3104/setup.c
 3 *  EC3104 companion chip support
 4 *
 5 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
 6 *
 7 */
 8/* EC3104 note:
 9 * This code was written without any documentation about the EC3104 chip.  While
10 * I hope I got most of the basic functionality right, the register names I use
11 * are most likely completely different from those in the chip documentation.
12 *
13 * If you have any further information about the EC3104, please tell me
14 * (prumpf@tux.org).
15 */
16
17#include <linux/sched.h>
18#include <linux/kernel.h>
19#include <linux/param.h>
20#include <linux/interrupt.h>
21#include <linux/init.h>
22#include <linux/irq.h>
23#include <linux/types.h>
24
25#include <asm/io.h>
26#include <asm/irq.h>
27#include <asm/machvec.h>
28#include <asm/mach/ec3104.h>
29
30const char *get_system_type(void)
31{
32	return "EC3104";
33}
34
35/*
36 * The Machine Vector
37 */
38
39struct sh_machine_vector mv_ec3104 __initmv = {
40	.mv_nr_irqs	= 96,
41
42	.mv_inb		= ec3104_inb,
43	.mv_inw		= ec3104_inw,
44	.mv_inl		= ec3104_inl,
45	.mv_outb	= ec3104_outb,
46	.mv_outw	= ec3104_outw,
47	.mv_outl	= ec3104_outl,
48
49	.mv_irq_demux	= ec3104_irq_demux,
50};
51
52ALIAS_MV(ec3104)
53
54int __init platform_setup(void)
55{
56	char str[8];
57	int i;
58	
59	if (0)
60		return 0;
61
62	for (i=0; i<8; i++)
63		str[i] = ctrl_readb(EC3104_BASE + i);
64
65	for (i = EC3104_IRQBASE; i < EC3104_IRQBASE + 32; i++)
66		irq_desc[i].handler = &ec3104_int;
67
68	printk("initializing EC3104 \"%.8s\" at %08x, IRQ %d, IRQ base %d\n",
69	       str, EC3104_BASE, EC3104_IRQ, EC3104_IRQBASE);
70
71
72	/* mask all interrupts.  this should have been done by the boot
73	 * loader for us but we want to be sure ... */
74	ctrl_writel(0xffffffff, EC3104_IMR);
75	
76	return 0;
77}
78