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/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 * IQ80331 timer tick configuration.
38 */
iq80331_timer_init(void)39 static void __init iq80331_timer_init(void)
40 {
41 /* D-Step parts run at a higher internal bus frequency */
42 if (*IOP3XX_ATURID >= 0xa)
43 iop_init_time(333000000);
44 else
45 iop_init_time(266000000);
46 }
47
48 static struct sys_timer iq80331_timer = {
49 .init = iq80331_timer_init,
50 };
51
52
53 /*
54 * IQ80331 PCI.
55 */
56 static int __init
iq80331_pci_map_irq(struct pci_dev * dev,u8 slot,u8 pin)57 iq80331_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
58 {
59 int irq;
60
61 if (slot == 1 && pin == 1) {
62 /* PCI-X Slot INTA */
63 irq = IRQ_IOP33X_XINT1;
64 } else if (slot == 1 && pin == 2) {
65 /* PCI-X Slot INTB */
66 irq = IRQ_IOP33X_XINT2;
67 } else if (slot == 1 && pin == 3) {
68 /* PCI-X Slot INTC */
69 irq = IRQ_IOP33X_XINT3;
70 } else if (slot == 1 && pin == 4) {
71 /* PCI-X Slot INTD */
72 irq = IRQ_IOP33X_XINT0;
73 } else if (slot == 2) {
74 /* GigE */
75 irq = IRQ_IOP33X_XINT2;
76 } else {
77 printk(KERN_ERR "iq80331_pci_map_irq() called for unknown "
78 "device PCI:%d:%d:%d\n", dev->bus->number,
79 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
80 irq = -1;
81 }
82
83 return irq;
84 }
85
86 static struct hw_pci iq80331_pci __initdata = {
87 .swizzle = pci_std_swizzle,
88 .nr_controllers = 1,
89 .setup = iop3xx_pci_setup,
90 .preinit = iop3xx_pci_preinit_cond,
91 .scan = iop3xx_pci_scan_bus,
92 .map_irq = iq80331_pci_map_irq,
93 };
94
iq80331_pci_init(void)95 static int __init iq80331_pci_init(void)
96 {
97 if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
98 machine_is_iq80331())
99 pci_common_init(&iq80331_pci);
100
101 return 0;
102 }
103
104 subsys_initcall(iq80331_pci_init);
105
106
107 /*
108 * IQ80331 machine initialisation.
109 */
110 static struct physmap_flash_data iq80331_flash_data = {
111 .width = 1,
112 };
113
114 static struct resource iq80331_flash_resource = {
115 .start = 0xc0000000,
116 .end = 0xc07fffff,
117 .flags = IORESOURCE_MEM,
118 };
119
120 static struct platform_device iq80331_flash_device = {
121 .name = "physmap-flash",
122 .id = 0,
123 .dev = {
124 .platform_data = &iq80331_flash_data,
125 },
126 .num_resources = 1,
127 .resource = &iq80331_flash_resource,
128 };
129
iq80331_init_machine(void)130 static void __init iq80331_init_machine(void)
131 {
132 platform_device_register(&iop3xx_i2c0_device);
133 platform_device_register(&iop3xx_i2c1_device);
134 platform_device_register(&iop33x_uart0_device);
135 platform_device_register(&iop33x_uart1_device);
136 platform_device_register(&iq80331_flash_device);
137 platform_device_register(&iop3xx_dma_0_channel);
138 platform_device_register(&iop3xx_dma_1_channel);
139 platform_device_register(&iop3xx_aau_channel);
140 }
141
142 MACHINE_START(IQ80331, "Intel IQ80331")
143 /* Maintainer: Intel Corp. */
144 .boot_params = 0x00000100,
145 .map_io = iop3xx_map_io,
146 .init_irq = iop33x_init_irq,
147 .timer = &iq80331_timer,
148 .init_machine = iq80331_init_machine,
149 MACHINE_END
150