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 <asm/hardware.h>
26#include <asm/io.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 <asm/arch/time.h>
36
37/*
38 * IQ80331 timer tick configuration.
39 */
40static 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
49static struct sys_timer iq80331_timer = {
50	.init		= iq80331_timer_init,
51	.offset		= iop_gettimeoffset,
52};
53
54
55/*
56 * IQ80331 PCI.
57 */
58static int __init
59iq80331_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
88static 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,
93	.scan		= iop3xx_pci_scan_bus,
94	.map_irq	= iq80331_pci_map_irq,
95};
96
97static 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
106subsys_initcall(iq80331_pci_init);
107
108
109/*
110 * IQ80331 machine initialisation.
111 */
112static struct physmap_flash_data iq80331_flash_data = {
113	.width		= 1,
114};
115
116static struct resource iq80331_flash_resource = {
117	.start		= 0xc0000000,
118	.end		= 0xc07fffff,
119	.flags		= IORESOURCE_MEM,
120};
121
122static 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
132static 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}
140
141MACHINE_START(IQ80331, "Intel IQ80331")
142	/* Maintainer: Intel Corp. */
143	.phys_io	= 0xfefff000,
144	.io_pg_offst	= ((0xfffff000) >> 18) & 0xfffc,
145	.boot_params	= 0x00000100,
146	.map_io		= iop3xx_map_io,
147	.init_irq	= iop33x_init_irq,
148	.timer		= &iq80331_timer,
149	.init_machine	= iq80331_init_machine,
150MACHINE_END
151