1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/*
* linux/arch/m32r/platforms/m32104ut/setup.c
*
* Setup routines for M32104UT Board
*
* Copyright (c) 2002-2005 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Mamoru Sakugawa,
* Naoto Sugai, Hayato Fujiwara
*/
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <asm/system.h>
#include <asm/m32r.h>
#include <asm/io.h>
#define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))
icu_data_t icu_data[NR_IRQS];
static void disable_m32104ut_irq(unsigned int irq)
{
unsigned long port, data;
port = irq2port(irq);
data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
outl(data, port);
}
static void enable_m32104ut_irq(unsigned int irq)
{
unsigned long port, data;
port = irq2port(irq);
data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
outl(data, port);
}
static void mask_m32104ut_irq(struct irq_data *data)
{
disable_m32104ut_irq(data->irq);
}
static void unmask_m32104ut_irq(struct irq_data *data)
{
enable_m32104ut_irq(data->irq);
}
static void shutdown_m32104ut_irq(struct irq_data *data)
{
unsigned int irq = data->irq;
unsigned long port = irq2port(irq);
outl(M32R_ICUCR_ILEVEL7, port);
}
static struct irq_chip m32104ut_irq_type =
{
.name = "M32104UT-IRQ",
.irq_shutdown = shutdown_m32104ut_irq,
.irq_unmask = unmask_m32104ut_irq,
.irq_mask = mask_m32104ut_irq,
};
void __init init_IRQ(void)
{
static int once = 0;
if (once)
return;
else
once++;
#if defined(CONFIG_SMC91X)
/* INT#0: LAN controller on M32104UT-LAN (SMC91C111)*/
set_irq_chip_and_handler(M32R_IRQ_INT0, &m32104ut_irq_type,
handle_level_irq);
/* "H" level sense */
cu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD11;
disable_m32104ut_irq(M32R_IRQ_INT0);
#endif /* CONFIG_SMC91X */
/* MFT2 : system timer */
set_irq_chip_and_handler(M32R_IRQ_MFT2, &m32104ut_irq_type,
handle_level_irq);
icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
disable_m32104ut_irq(M32R_IRQ_MFT2);
#ifdef CONFIG_SERIAL_M32R_SIO
/* SIO0_R : uart receive data */
set_irq_chip_and_handler(M32R_IRQ_SIO0_R, &m32104ut_irq_type,
handle_level_irq);
icu_data[M32R_IRQ_SIO0_R].icucr = M32R_ICUCR_IEN;
disable_m32104ut_irq(M32R_IRQ_SIO0_R);
/* SIO0_S : uart send data */
set_irq_chip_and_handler(M32R_IRQ_SIO0_S, &m32104ut_irq_type,
handle_level_irq);
icu_data[M32R_IRQ_SIO0_S].icucr = M32R_ICUCR_IEN;
disable_m32104ut_irq(M32R_IRQ_SIO0_S);
#endif /* CONFIG_SERIAL_M32R_SIO */
}
#if defined(CONFIG_SMC91X)
#define LAN_IOSTART 0x300
#define LAN_IOEND 0x320
static struct resource smc91x_resources[] = {
[0] = {
.start = (LAN_IOSTART),
.end = (LAN_IOEND),
.flags = IORESOURCE_MEM,
},
[1] = {
.start = M32R_IRQ_INT0,
.end = M32R_IRQ_INT0,
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
};
#endif
static int __init platform_init(void)
{
#if defined(CONFIG_SMC91X)
platform_device_register(&smc91x_device);
#endif
return 0;
}
arch_initcall(platform_init);
|
