Merge master.kernel.org:/home/rmk/linux-2.6-mmc
[linux-2.6] / arch / m32r / kernel / setup_m32104ut.c
1 /*
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
23 icu_data_t icu_data[NR_IRQS];
24
25 static 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
34 static 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
43 static void mask_and_ack_m32104ut(unsigned int irq)
44 {
45         disable_m32104ut_irq(irq);
46 }
47
48 static void end_m32104ut_irq(unsigned int irq)
49 {
50         enable_m32104ut_irq(irq);
51 }
52
53 static unsigned int startup_m32104ut_irq(unsigned int irq)
54 {
55         enable_m32104ut_irq(irq);
56         return (0);
57 }
58
59 static 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
67 static 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
78 void __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
128 static 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
141 static 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
149 static int __init platform_init(void)
150 {
151 #if defined(CONFIG_SMC91X)
152         platform_device_register(&smc91x_device);
153 #endif
154         return 0;
155 }
156 arch_initcall(platform_init);