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