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/slab.h>
22#include <linux/serial_core.h>
23#include <linux/serial_8250.h>
24#include <linux/mtd/physmap.h>
25#include <linux/platform_device.h>
26#include <asm/hardware.h>
27#include <asm/io.h>
28#include <asm/irq.h>
29#include <asm/mach/arch.h>
30#include <asm/mach/map.h>
31#include <asm/mach/pci.h>
32#include <asm/mach/time.h>
33#include <asm/mach-types.h>
34#include <asm/page.h>
35#include <asm/pgtable.h>
36#include <asm/arch/time.h>
37
38/*
39 * IQ80321 timer tick configuration.
40 */
41static void __init iq80321_timer_init(void)
42{
43	/* 33.333 MHz crystal.  */
44	iop_init_time(200000000);
45}
46
47static struct sys_timer iq80321_timer = {
48	.init		= iq80321_timer_init,
49	.offset		= iop_gettimeoffset,
50};
51
52
53/*
54 * IQ80321 I/O.
55 */
56static struct map_desc iq80321_io_desc[] __initdata = {
57 	{	/* on-board devices */
58		.virtual	= IQ80321_UART,
59		.pfn		= __phys_to_pfn(IQ80321_UART),
60		.length		= 0x00100000,
61		.type		= MT_DEVICE,
62	},
63};
64
65void __init iq80321_map_io(void)
66{
67	iop3xx_map_io();
68	iotable_init(iq80321_io_desc, ARRAY_SIZE(iq80321_io_desc));
69}
70
71
72/*
73 * IQ80321 PCI.
74 */
75static int __init
76iq80321_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
77{
78	int irq;
79
80	if ((slot == 2 || slot == 6) && pin == 1) {
81		/* PCI-X Slot INTA */
82		irq = IRQ_IOP32X_XINT2;
83	} else if ((slot == 2 || slot == 6) && pin == 2) {
84		/* PCI-X Slot INTA */
85		irq = IRQ_IOP32X_XINT3;
86	} else if ((slot == 2 || slot == 6) && pin == 3) {
87		/* PCI-X Slot INTA */
88		irq = IRQ_IOP32X_XINT0;
89	} else if ((slot == 2 || slot == 6) && pin == 4) {
90		/* PCI-X Slot INTA */
91		irq = IRQ_IOP32X_XINT1;
92	} else if (slot == 4 || slot == 8) {
93		/* Gig-E */
94		irq = IRQ_IOP32X_XINT0;
95	} else {
96		printk(KERN_ERR "iq80321_pci_map_irq() called for unknown "
97			"device PCI:%d:%d:%d\n", dev->bus->number,
98			PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
99		irq = -1;
100	}
101
102	return irq;
103}
104
105static struct hw_pci iq80321_pci __initdata = {
106	.swizzle	= pci_std_swizzle,
107	.nr_controllers = 1,
108	.setup		= iop3xx_pci_setup,
109	.preinit	= iop3xx_pci_preinit,
110	.scan		= iop3xx_pci_scan_bus,
111	.map_irq	= iq80321_pci_map_irq,
112};
113
114static int __init iq80321_pci_init(void)
115{
116	if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
117		machine_is_iq80321())
118		pci_common_init(&iq80321_pci);
119
120	return 0;
121}
122
123subsys_initcall(iq80321_pci_init);
124
125
126/*
127 * IQ80321 machine initialisation.
128 */
129static struct physmap_flash_data iq80321_flash_data = {
130	.width		= 1,
131};
132
133static struct resource iq80321_flash_resource = {
134	.start		= 0xf0000000,
135	.end		= 0xf07fffff,
136	.flags		= IORESOURCE_MEM,
137};
138
139static struct platform_device iq80321_flash_device = {
140	.name		= "physmap-flash",
141	.id		= 0,
142	.dev		= {
143		.platform_data	= &iq80321_flash_data,
144	},
145	.num_resources	= 1,
146	.resource	= &iq80321_flash_resource,
147};
148
149static struct plat_serial8250_port iq80321_serial_port[] = {
150	{
151		.mapbase	= IQ80321_UART,
152		.membase	= (char *)IQ80321_UART,
153		.irq		= IRQ_IOP32X_XINT1,
154		.flags		= UPF_SKIP_TEST,
155		.iotype		= UPIO_MEM,
156		.regshift	= 0,
157		.uartclk	= 1843200,
158	},
159	{ },
160};
161
162static struct resource iq80321_uart_resource = {
163	.start		= IQ80321_UART,
164	.end		= IQ80321_UART + 7,
165	.flags		= IORESOURCE_MEM,
166};
167
168static struct platform_device iq80321_serial_device = {
169	.name		= "serial8250",
170	.id		= PLAT8250_DEV_PLATFORM,
171	.dev		= {
172		.platform_data		= iq80321_serial_port,
173	},
174	.num_resources	= 1,
175	.resource	= &iq80321_uart_resource,
176};
177
178static void __init iq80321_init_machine(void)
179{
180	platform_device_register(&iop3xx_i2c0_device);
181	platform_device_register(&iop3xx_i2c1_device);
182	platform_device_register(&iq80321_flash_device);
183	platform_device_register(&iq80321_serial_device);
184}
185
186MACHINE_START(IQ80321, "Intel IQ80321")
187	/* Maintainer: Intel Corp. */
188	.phys_io	= IQ80321_UART,
189	.io_pg_offst	= ((IQ80321_UART) >> 18) & 0xfffc,
190	.boot_params	= 0xa0000100,
191	.map_io		= iq80321_map_io,
192	.init_irq	= iop32x_init_irq,
193	.timer		= &iq80321_timer,
194	.init_machine	= iq80321_init_machine,
195MACHINE_END
196