Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
[linux-2.6-block.git] / arch / arm / mach-iop33x / iq80332.c
1 /*
2  * arch/arm/mach-iop33x/iq80332.c
3  *
4  * Board support code for the Intel IQ80332 platform.
5  *
6  * Author: Dave Jiang <dave.jiang@intel.com>
7  * Copyright (C) 2004 Intel Corp.
8  *
9  * This program is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU General Public License as published by the
11  * Free Software Foundation; either version 2 of the License, or (at your
12  * option) any later version.
13  */
14
15 #include <linux/mm.h>
16 #include <linux/init.h>
17 #include <linux/kernel.h>
18 #include <linux/pci.h>
19 #include <linux/string.h>
20 #include <linux/serial_core.h>
21 #include <linux/serial_8250.h>
22 #include <linux/mtd/physmap.h>
23 #include <linux/platform_device.h>
24 #include <linux/io.h>
25 #include <mach/hardware.h>
26 #include <asm/irq.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/pci.h>
30 #include <asm/mach/time.h>
31 #include <asm/mach-types.h>
32 #include <asm/page.h>
33 #include <asm/pgtable.h>
34 #include <mach/time.h>
35
36 /*
37  * IQ80332 timer tick configuration.
38  */
39 static void __init iq80332_timer_init(void)
40 {
41         /* D-Step parts and the iop333 run at a higher internal bus frequency */
42         if (*IOP3XX_ATURID >= 0xa || *IOP3XX_ATUDID == 0x374)
43                 iop_init_time(333000000);
44         else
45                 iop_init_time(266000000);
46 }
47
48
49 /*
50  * IQ80332 PCI.
51  */
52 static int __init
53 iq80332_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
54 {
55         int irq;
56
57         if (slot == 4 && pin == 1) {
58                 /* PCI-X Slot INTA */
59                 irq = IRQ_IOP33X_XINT0;
60         } else if (slot == 4 && pin == 2) {
61                 /* PCI-X Slot INTB */
62                 irq = IRQ_IOP33X_XINT1;
63         } else if (slot == 4 && pin == 3) {
64                 /* PCI-X Slot INTC */
65                 irq = IRQ_IOP33X_XINT2;
66         } else if (slot == 4 && pin == 4) {
67                 /* PCI-X Slot INTD */
68                 irq = IRQ_IOP33X_XINT3;
69         } else if (slot == 6) {
70                 /* GigE */
71                 irq = IRQ_IOP33X_XINT2;
72         } else {
73                 printk(KERN_ERR "iq80332_pci_map_irq() called for unknown "
74                         "device PCI:%d:%d:%d\n", dev->bus->number,
75                         PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
76                 irq = -1;
77         }
78
79         return irq;
80 }
81
82 static struct hw_pci iq80332_pci __initdata = {
83         .nr_controllers = 1,
84         .ops            = &iop3xx_ops,
85         .setup          = iop3xx_pci_setup,
86         .preinit        = iop3xx_pci_preinit_cond,
87         .map_irq        = iq80332_pci_map_irq,
88 };
89
90 static int __init iq80332_pci_init(void)
91 {
92         if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
93                 machine_is_iq80332())
94                 pci_common_init(&iq80332_pci);
95
96         return 0;
97 }
98
99 subsys_initcall(iq80332_pci_init);
100
101
102 /*
103  * IQ80332 machine initialisation.
104  */
105 static struct physmap_flash_data iq80332_flash_data = {
106         .width          = 1,
107 };
108
109 static struct resource iq80332_flash_resource = {
110         .start          = 0xc0000000,
111         .end            = 0xc07fffff,
112         .flags          = IORESOURCE_MEM,
113 };
114
115 static struct platform_device iq80332_flash_device = {
116         .name           = "physmap-flash",
117         .id             = 0,
118         .dev            = {
119                 .platform_data  = &iq80332_flash_data,
120         },
121         .num_resources  = 1,
122         .resource       = &iq80332_flash_resource,
123 };
124
125 static struct resource iq80332_gpio_res[] = {
126         DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x1780), 0x10),
127 };
128
129 static void __init iq80332_init_machine(void)
130 {
131         platform_device_register_simple("gpio-iop", 0,
132                                         iq80332_gpio_res,
133                                         ARRAY_SIZE(iq80332_gpio_res));
134         platform_device_register(&iop3xx_i2c0_device);
135         platform_device_register(&iop3xx_i2c1_device);
136         platform_device_register(&iop33x_uart0_device);
137         platform_device_register(&iop33x_uart1_device);
138         platform_device_register(&iq80332_flash_device);
139         platform_device_register(&iop3xx_dma_0_channel);
140         platform_device_register(&iop3xx_dma_1_channel);
141         platform_device_register(&iop3xx_aau_channel);
142 }
143
144 MACHINE_START(IQ80332, "Intel IQ80332")
145         /* Maintainer: Intel Corp. */
146         .atag_offset    = 0x100,
147         .map_io         = iop3xx_map_io,
148         .init_irq       = iop33x_init_irq,
149         .init_time      = iq80332_timer_init,
150         .init_machine   = iq80332_init_machine,
151         .restart        = iop3xx_restart,
152 MACHINE_END