1 /*
2 * arch/arm/mach-iop33x/iq80331.c
3 *
4 * Board support code for the Intel IQ80331 platform.
5 *
6 * Author: Dave Jiang <dave.jiang@intel.com>
7 * Copyright (C) 2003 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/slab.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 * IQ80331 timer tick configuration.
39 */
40 static void __init iq80331_timer_init(void)
41 {
42 /* D-Step parts run at a higher internal bus frequency */
43 if (*IOP3XX_ATURID >= 0xa)
44 iop_init_time(333000000);
45 else
46 iop_init_time(266000000);
47 }
48
49 static struct sys_timer iq80331_timer = {
50 .init = iq80331_timer_init,
51 .offset = iop_gettimeoffset,
52 };
53
54
55 /*
56 * IQ80331 PCI.
57 */
58 static int __init
59 iq80331_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
60 {
61 int irq;
62
63 if (slot == 1 && pin == 1) {
64 /* PCI-X Slot INTA */
65 irq = IRQ_IOP33X_XINT1;
66 } else if (slot == 1 && pin == 2) {
67 /* PCI-X Slot INTB */
68 irq = IRQ_IOP33X_XINT2;
69 } else if (slot == 1 && pin == 3) {
70 /* PCI-X Slot INTC */
71 irq = IRQ_IOP33X_XINT3;
72 } else if (slot == 1 && pin == 4) {
73 /* PCI-X Slot INTD */
74 irq = IRQ_IOP33X_XINT0;
75 } else if (slot == 2) {
76 /* GigE */
77 irq = IRQ_IOP33X_XINT2;
78 } else {
79 printk(KERN_ERR "iq80331_pci_map_irq() called for unknown "
80 "device PCI:%d:%d:%d\n", dev->bus->number,
81 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
82 irq = -1;
83 }
84
85 return irq;
86 }
87
88 static struct hw_pci iq80331_pci __initdata = {
89 .swizzle = pci_std_swizzle,
90 .nr_controllers = 1,
91 .setup = iop3xx_pci_setup,
92 .preinit = iop3xx_pci_preinit_cond,
93 .scan = iop3xx_pci_scan_bus,
94 .map_irq = iq80331_pci_map_irq,
95 };
96
97 static int __init iq80331_pci_init(void)
98 {
99 if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
100 machine_is_iq80331())
101 pci_common_init(&iq80331_pci);
102
103 return 0;
104 }
105
106 subsys_initcall(iq80331_pci_init);
107
108
109 /*
110 * IQ80331 machine initialisation.
111 */
112 static struct physmap_flash_data iq80331_flash_data = {
113 .width = 1,
114 };
115
116 static struct resource iq80331_flash_resource = {
117 .start = 0xc0000000,
118 .end = 0xc07fffff,
119 .flags = IORESOURCE_MEM,
120 };
121
122 static struct platform_device iq80331_flash_device = {
123 .name = "physmap-flash",
124 .id = 0,
125 .dev = {
126 .platform_data = &iq80331_flash_data,
127 },
128 .num_resources = 1,
129 .resource = &iq80331_flash_resource,
130 };
131
132 static void __init iq80331_init_machine(void)
133 {
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(&iq80331_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(IQ80331, "Intel IQ80331")
145 /* Maintainer: Intel Corp. */
146 .phys_io = 0xfefff000,
147 .io_pg_offst = ((0xfffff000) >> 18) & 0xfffc,
148 .boot_params = 0x00000100,
149 .map_io = iop3xx_map_io,
150 .init_irq = iop33x_init_irq,
151 .timer = &iq80331_timer,
152 .init_machine = iq80331_init_machine,
153 MACHINE_END
154
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