blob: 6328e1357a80637c324421ffed54af28e223f804 [file] [log] [blame]
Hirokazu Takata9287d952006-01-06 00:18:41 -08001/*
2 * linux/arch/m32r/kernel/setup_m32104ut.c
3 *
4 * Setup routines for M32104UT Board
5 *
6 * Copyright (c) 2002-2005 Hiroyuki Kondo, Hirokazu Takata,
7 * Hitoshi Yamamoto, Mamoru Sakugawa,
8 * Naoto Sugai, Hayato Fujiwara
9 */
10
11#include <linux/config.h>
12#include <linux/irq.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/device.h>
16
17#include <asm/system.h>
18#include <asm/m32r.h>
19#include <asm/io.h>
20
21#define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))
22
Hirokazu Takata9287d952006-01-06 00:18:41 -080023icu_data_t icu_data[NR_IRQS];
24
25static void disable_m32104ut_irq(unsigned int irq)
26{
27 unsigned long port, data;
28
29 port = irq2port(irq);
30 data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
31 outl(data, port);
32}
33
34static void enable_m32104ut_irq(unsigned int irq)
35{
36 unsigned long port, data;
37
38 port = irq2port(irq);
39 data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
40 outl(data, port);
41}
42
43static void mask_and_ack_m32104ut(unsigned int irq)
44{
45 disable_m32104ut_irq(irq);
46}
47
48static void end_m32104ut_irq(unsigned int irq)
49{
50 enable_m32104ut_irq(irq);
51}
52
53static unsigned int startup_m32104ut_irq(unsigned int irq)
54{
55 enable_m32104ut_irq(irq);
56 return (0);
57}
58
59static void shutdown_m32104ut_irq(unsigned int irq)
60{
61 unsigned long port;
62
63 port = irq2port(irq);
64 outl(M32R_ICUCR_ILEVEL7, port);
65}
66
67static struct hw_interrupt_type m32104ut_irq_type =
68{
69 .typename = "M32104UT-IRQ",
70 .startup = startup_m32104ut_irq,
71 .shutdown = shutdown_m32104ut_irq,
72 .enable = enable_m32104ut_irq,
73 .disable = disable_m32104ut_irq,
74 .ack = mask_and_ack_m32104ut,
75 .end = end_m32104ut_irq
76};
77
78void __init init_IRQ(void)
79{
80 static int once = 0;
81
82 if (once)
83 return;
84 else
85 once++;
86
87#if defined(CONFIG_SMC91X)
88 /* INT#0: LAN controller on M32104UT-LAN (SMC91C111)*/
89 irq_desc[M32R_IRQ_INT0].status = IRQ_DISABLED;
90 irq_desc[M32R_IRQ_INT0].handler = &m32104ut_irq_type;
91 irq_desc[M32R_IRQ_INT0].action = 0;
92 irq_desc[M32R_IRQ_INT0].depth = 1;
93 icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD11; /* "H" level sense */
94 disable_m32104ut_irq(M32R_IRQ_INT0);
95#endif /* CONFIG_SMC91X */
96
97 /* MFT2 : system timer */
98 irq_desc[M32R_IRQ_MFT2].status = IRQ_DISABLED;
99 irq_desc[M32R_IRQ_MFT2].handler = &m32104ut_irq_type;
100 irq_desc[M32R_IRQ_MFT2].action = 0;
101 irq_desc[M32R_IRQ_MFT2].depth = 1;
102 icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
103 disable_m32104ut_irq(M32R_IRQ_MFT2);
104
105#ifdef CONFIG_SERIAL_M32R_SIO
106 /* SIO0_R : uart receive data */
107 irq_desc[M32R_IRQ_SIO0_R].status = IRQ_DISABLED;
108 irq_desc[M32R_IRQ_SIO0_R].handler = &m32104ut_irq_type;
109 irq_desc[M32R_IRQ_SIO0_R].action = 0;
110 irq_desc[M32R_IRQ_SIO0_R].depth = 1;
111 icu_data[M32R_IRQ_SIO0_R].icucr = M32R_ICUCR_IEN;
112 disable_m32104ut_irq(M32R_IRQ_SIO0_R);
113
114 /* SIO0_S : uart send data */
115 irq_desc[M32R_IRQ_SIO0_S].status = IRQ_DISABLED;
116 irq_desc[M32R_IRQ_SIO0_S].handler = &m32104ut_irq_type;
117 irq_desc[M32R_IRQ_SIO0_S].action = 0;
118 irq_desc[M32R_IRQ_SIO0_S].depth = 1;
119 icu_data[M32R_IRQ_SIO0_S].icucr = M32R_ICUCR_IEN;
120 disable_m32104ut_irq(M32R_IRQ_SIO0_S);
121#endif /* CONFIG_SERIAL_M32R_SIO */
122}
123
124#if defined(CONFIG_SMC91X)
125
126#define LAN_IOSTART 0x300
127#define LAN_IOEND 0x320
128static struct resource smc91x_resources[] = {
129 [0] = {
130 .start = (LAN_IOSTART),
131 .end = (LAN_IOEND),
132 .flags = IORESOURCE_MEM,
133 },
134 [1] = {
135 .start = M32R_IRQ_INT0,
136 .end = M32R_IRQ_INT0,
137 .flags = IORESOURCE_IRQ,
138 }
139};
140
141static struct platform_device smc91x_device = {
142 .name = "smc91x",
143 .id = 0,
144 .num_resources = ARRAY_SIZE(smc91x_resources),
145 .resource = smc91x_resources,
146};
147#endif
148
149static int __init platform_init(void)
150{
151#if defined(CONFIG_SMC91X)
152 platform_device_register(&smc91x_device);
153#endif
154 return 0;
155}
156arch_initcall(platform_init);