Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[pandora-kernel.git] / arch / sh / boards / board-polaris.c
1 /*
2  * June 2006 steve.glendinning@smsc.com
3  *
4  * Polaris-specific resource declaration
5  *
6  */
7
8 #include <linux/init.h>
9 #include <linux/interrupt.h>
10 #include <linux/irq.h>
11 #include <linux/platform_device.h>
12 #include <linux/smsc911x.h>
13 #include <linux/io.h>
14 #include <asm/irq.h>
15 #include <asm/machvec.h>
16 #include <asm/heartbeat.h>
17 #include <cpu/gpio.h>
18 #include <mach-se/mach/se.h>
19
20 #define BCR2            (0xFFFFFF62)
21 #define WCR2            (0xFFFFFF66)
22 #define AREA5_WAIT_CTRL (0x1C00)
23 #define WAIT_STATES_10  (0x7)
24
25 static struct resource smsc911x_resources[] = {
26         [0] = {
27                 .name           = "smsc911x-memory",
28                 .start          = PA_EXT5,
29                 .end            = PA_EXT5 + 0x1fff,
30                 .flags          = IORESOURCE_MEM,
31         },
32         [1] = {
33                 .name           = "smsc911x-irq",
34                 .start          = IRQ0_IRQ,
35                 .end            = IRQ0_IRQ,
36                 .flags          = IORESOURCE_IRQ,
37         },
38 };
39
40 static struct smsc911x_platform_config smsc911x_config = {
41         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
42         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
43         .flags          = SMSC911X_USE_32BIT,
44         .phy_interface  = PHY_INTERFACE_MODE_MII,
45 };
46
47 static struct platform_device smsc911x_device = {
48         .name           = "smsc911x",
49         .id             = 0,
50         .num_resources  = ARRAY_SIZE(smsc911x_resources),
51         .resource       = smsc911x_resources,
52         .dev = {
53                 .platform_data = &smsc911x_config,
54         },
55 };
56
57 static unsigned char heartbeat_bit_pos[] = { 0, 1, 2, 3 };
58
59 static struct heartbeat_data heartbeat_data = {
60         .bit_pos        = heartbeat_bit_pos,
61         .nr_bits        = ARRAY_SIZE(heartbeat_bit_pos),
62 };
63
64 static struct resource heartbeat_resource = {
65         .start  = PORT_PCDR,
66         .end    = PORT_PCDR,
67         .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8BIT,
68 };
69
70 static struct platform_device heartbeat_device = {
71         .name           = "heartbeat",
72         .id             = -1,
73         .dev    = {
74                 .platform_data  = &heartbeat_data,
75         },
76         .num_resources  = 1,
77         .resource       = &heartbeat_resource,
78 };
79
80 static struct platform_device *polaris_devices[] __initdata = {
81         &smsc911x_device,
82         &heartbeat_device,
83 };
84
85 static int __init polaris_initialise(void)
86 {
87         u16 wcr, bcr_mask;
88
89         printk(KERN_INFO "Configuring Polaris external bus\n");
90
91         /* Configure area 5 with 2 wait states */
92         wcr = __raw_readw(WCR2);
93         wcr &= (~AREA5_WAIT_CTRL);
94         wcr |= (WAIT_STATES_10 << 10);
95         __raw_writew(wcr, WCR2);
96
97         /* Configure area 5 for 32-bit access */
98         bcr_mask = __raw_readw(BCR2);
99         bcr_mask |= 1 << 10;
100         __raw_writew(bcr_mask, BCR2);
101
102         return platform_add_devices(polaris_devices,
103                                     ARRAY_SIZE(polaris_devices));
104 }
105 arch_initcall(polaris_initialise);
106
107 static struct ipr_data ipr_irq_table[] = {
108         /* External IRQs */
109         { IRQ0_IRQ, 0,  0,  1, },       /* IRQ0 */
110         { IRQ1_IRQ, 0,  4,  1, },       /* IRQ1 */
111 };
112
113 static unsigned long ipr_offsets[] = {
114         INTC_IPRC
115 };
116
117 static struct ipr_desc ipr_irq_desc = {
118         .ipr_offsets    = ipr_offsets,
119         .nr_offsets     = ARRAY_SIZE(ipr_offsets),
120
121         .ipr_data       = ipr_irq_table,
122         .nr_irqs        = ARRAY_SIZE(ipr_irq_table),
123         .chip = {
124                 .name   = "sh7709-ext",
125         },
126 };
127
128 static void __init init_polaris_irq(void)
129 {
130         /* Disable all interrupts */
131         __raw_writew(0, BCR_ILCRA);
132         __raw_writew(0, BCR_ILCRB);
133         __raw_writew(0, BCR_ILCRC);
134         __raw_writew(0, BCR_ILCRD);
135         __raw_writew(0, BCR_ILCRE);
136         __raw_writew(0, BCR_ILCRF);
137         __raw_writew(0, BCR_ILCRG);
138
139         register_ipr_controller(&ipr_irq_desc);
140 }
141
142 static struct sh_machine_vector mv_polaris __initmv = {
143         .mv_name                = "Polaris",
144         .mv_nr_irqs             = 61,
145         .mv_init_irq            = init_polaris_irq,
146 };