Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
[linux-2.6] / arch / arm / mach-iop32x / iq80321.c
1 /*
2  * arch/arm/mach-iop32x/iq80321.c
3  *
4  * Board support code for the Intel IQ80321 platform.
5  *
6  * Author: Rory Bolt <rorybolt@pacbell.net>
7  * Copyright (C) 2002 Rory Bolt
8  * Copyright (C) 2004 Intel Corp.
9  *
10  * This program is free software; you can redistribute it and/or modify it
11  * under the terms of the GNU General Public License as published by the
12  * Free Software Foundation; either version 2 of the License, or (at your
13  * option) any later version.
14  */
15
16 #include <linux/mm.h>
17 #include <linux/init.h>
18 #include <linux/kernel.h>
19 #include <linux/pci.h>
20 #include <linux/string.h>
21 #include <linux/slab.h>
22 #include <linux/serial_core.h>
23 #include <linux/serial_8250.h>
24 #include <linux/mtd/physmap.h>
25 #include <linux/platform_device.h>
26 #include <linux/io.h>
27 #include <mach/hardware.h>
28 #include <asm/irq.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/pci.h>
32 #include <asm/mach/time.h>
33 #include <asm/mach-types.h>
34 #include <asm/page.h>
35 #include <asm/pgtable.h>
36 #include <mach/time.h>
37
38 /*
39  * IQ80321 timer tick configuration.
40  */
41 static void __init iq80321_timer_init(void)
42 {
43         /* 33.333 MHz crystal.  */
44         iop_init_time(200000000);
45 }
46
47 static struct sys_timer iq80321_timer = {
48         .init           = iq80321_timer_init,
49         .offset         = iop_gettimeoffset,
50 };
51
52
53 /*
54  * IQ80321 I/O.
55  */
56 static struct map_desc iq80321_io_desc[] __initdata = {
57         {       /* on-board devices */
58                 .virtual        = IQ80321_UART,
59                 .pfn            = __phys_to_pfn(IQ80321_UART),
60                 .length         = 0x00100000,
61                 .type           = MT_DEVICE,
62         },
63 };
64
65 void __init iq80321_map_io(void)
66 {
67         iop3xx_map_io();
68         iotable_init(iq80321_io_desc, ARRAY_SIZE(iq80321_io_desc));
69 }
70
71
72 /*
73  * IQ80321 PCI.
74  */
75 static int __init
76 iq80321_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
77 {
78         int irq;
79
80         if ((slot == 2 || slot == 6) && pin == 1) {
81                 /* PCI-X Slot INTA */
82                 irq = IRQ_IOP32X_XINT2;
83         } else if ((slot == 2 || slot == 6) && pin == 2) {
84                 /* PCI-X Slot INTA */
85                 irq = IRQ_IOP32X_XINT3;
86         } else if ((slot == 2 || slot == 6) && pin == 3) {
87                 /* PCI-X Slot INTA */
88                 irq = IRQ_IOP32X_XINT0;
89         } else if ((slot == 2 || slot == 6) && pin == 4) {
90                 /* PCI-X Slot INTA */
91                 irq = IRQ_IOP32X_XINT1;
92         } else if (slot == 4 || slot == 8) {
93                 /* Gig-E */
94                 irq = IRQ_IOP32X_XINT0;
95         } else {
96                 printk(KERN_ERR "iq80321_pci_map_irq() called for unknown "
97                         "device PCI:%d:%d:%d\n", dev->bus->number,
98                         PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
99                 irq = -1;
100         }
101
102         return irq;
103 }
104
105 static struct hw_pci iq80321_pci __initdata = {
106         .swizzle        = pci_std_swizzle,
107         .nr_controllers = 1,
108         .setup          = iop3xx_pci_setup,
109         .preinit        = iop3xx_pci_preinit_cond,
110         .scan           = iop3xx_pci_scan_bus,
111         .map_irq        = iq80321_pci_map_irq,
112 };
113
114 static int __init iq80321_pci_init(void)
115 {
116         if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
117                 machine_is_iq80321())
118                 pci_common_init(&iq80321_pci);
119
120         return 0;
121 }
122
123 subsys_initcall(iq80321_pci_init);
124
125
126 /*
127  * IQ80321 machine initialisation.
128  */
129 static struct physmap_flash_data iq80321_flash_data = {
130         .width          = 1,
131 };
132
133 static struct resource iq80321_flash_resource = {
134         .start          = 0xf0000000,
135         .end            = 0xf07fffff,
136         .flags          = IORESOURCE_MEM,
137 };
138
139 static struct platform_device iq80321_flash_device = {
140         .name           = "physmap-flash",
141         .id             = 0,
142         .dev            = {
143                 .platform_data  = &iq80321_flash_data,
144         },
145         .num_resources  = 1,
146         .resource       = &iq80321_flash_resource,
147 };
148
149 static struct plat_serial8250_port iq80321_serial_port[] = {
150         {
151                 .mapbase        = IQ80321_UART,
152                 .membase        = (char *)IQ80321_UART,
153                 .irq            = IRQ_IOP32X_XINT1,
154                 .flags          = UPF_SKIP_TEST,
155                 .iotype         = UPIO_MEM,
156                 .regshift       = 0,
157                 .uartclk        = 1843200,
158         },
159         { },
160 };
161
162 static struct resource iq80321_uart_resource = {
163         .start          = IQ80321_UART,
164         .end            = IQ80321_UART + 7,
165         .flags          = IORESOURCE_MEM,
166 };
167
168 static struct platform_device iq80321_serial_device = {
169         .name           = "serial8250",
170         .id             = PLAT8250_DEV_PLATFORM,
171         .dev            = {
172                 .platform_data          = iq80321_serial_port,
173         },
174         .num_resources  = 1,
175         .resource       = &iq80321_uart_resource,
176 };
177
178 static void __init iq80321_init_machine(void)
179 {
180         platform_device_register(&iop3xx_i2c0_device);
181         platform_device_register(&iop3xx_i2c1_device);
182         platform_device_register(&iq80321_flash_device);
183         platform_device_register(&iq80321_serial_device);
184         platform_device_register(&iop3xx_dma_0_channel);
185         platform_device_register(&iop3xx_dma_1_channel);
186         platform_device_register(&iop3xx_aau_channel);
187 }
188
189 MACHINE_START(IQ80321, "Intel IQ80321")
190         /* Maintainer: Intel Corp. */
191         .phys_io        = IQ80321_UART,
192         .io_pg_offst    = ((IQ80321_UART) >> 18) & 0xfffc,
193         .boot_params    = 0xa0000100,
194         .map_io         = iq80321_map_io,
195         .init_irq       = iop32x_init_irq,
196         .timer          = &iq80321_timer,
197         .init_machine   = iq80321_init_machine,
198 MACHINE_END