iq80332.c 3.6 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
/*
 * arch/arm/mach-iop33x/iq80332.c
 *
 * Board support code for the Intel IQ80332 platform.
 *
 * Author: Dave Jiang <dave.jiang@intel.com>
 * Copyright (C) 2004 Intel Corp.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 */

#include <linux/mm.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/pci.h>
#include <asm/mach/time.h>
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
35
#include <asm/arch/time.h>
36 37 38 39 40 41 42 43

/*
 * IQ80332 timer tick configuration.
 */
static void __init iq80332_timer_init(void)
{
	/* D-Step parts and the iop333 run at a higher internal bus frequency */
	if (*IOP3XX_ATURID >= 0xa || *IOP3XX_ATUDID == 0x374)
44
		iop_init_time(333000000);
45
	else
46
		iop_init_time(266000000);
47 48 49 50
}

static struct sys_timer iq80332_timer = {
	.init		= iq80332_timer_init,
51
	.offset		= iop_gettimeoffset,
52 53 54 55 56 57
};


/*
 * IQ80332 PCI.
 */
58
static int __init
59 60 61 62 63 64
iq80332_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
	int irq;

	if (slot == 4 && pin == 1) {
		/* PCI-X Slot INTA */
65
		irq = IRQ_IOP33X_XINT0;
66 67
	} else if (slot == 4 && pin == 2) {
		/* PCI-X Slot INTB */
68
		irq = IRQ_IOP33X_XINT1;
69 70
	} else if (slot == 4 && pin == 3) {
		/* PCI-X Slot INTC */
71
		irq = IRQ_IOP33X_XINT2;
72 73
	} else if (slot == 4 && pin == 4) {
		/* PCI-X Slot INTD */
74
		irq = IRQ_IOP33X_XINT3;
75 76
	} else if (slot == 6) {
		/* GigE */
77
		irq = IRQ_IOP33X_XINT2;
78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98
	} else {
		printk(KERN_ERR "iq80332_pci_map_irq() called for unknown "
			"device PCI:%d:%d:%d\n", dev->bus->number,
			PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
		irq = -1;
	}

	return irq;
}

static struct hw_pci iq80332_pci __initdata = {
	.swizzle	= pci_std_swizzle,
	.nr_controllers = 1,
	.setup		= iop3xx_pci_setup,
	.preinit	= iop3xx_pci_preinit,
	.scan		= iop3xx_pci_scan_bus,
	.map_irq	= iq80332_pci_map_irq,
};

static int __init iq80332_pci_init(void)
{
99 100
	if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
		machine_is_iq80332())
101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138
		pci_common_init(&iq80332_pci);

	return 0;
}

subsys_initcall(iq80332_pci_init);


/*
 * IQ80332 machine initialisation.
 */
static struct physmap_flash_data iq80332_flash_data = {
	.width		= 1,
};

static struct resource iq80332_flash_resource = {
	.start		= 0xc0000000,
	.end		= 0xc07fffff,
	.flags		= IORESOURCE_MEM,
};

static struct platform_device iq80332_flash_device = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &iq80332_flash_data,
	},
	.num_resources	= 1,
	.resource	= &iq80332_flash_resource,
};

static void __init iq80332_init_machine(void)
{
	platform_device_register(&iop3xx_i2c0_device);
	platform_device_register(&iop3xx_i2c1_device);
	platform_device_register(&iop33x_uart0_device);
	platform_device_register(&iop33x_uart1_device);
	platform_device_register(&iq80332_flash_device);
139 140 141
	platform_device_register(&iop3xx_dma_0_channel);
	platform_device_register(&iop3xx_dma_1_channel);
	platform_device_register(&iop3xx_aau_channel);
142 143 144 145 146 147 148 149
}

MACHINE_START(IQ80332, "Intel IQ80332")
	/* Maintainer: Intel Corp. */
	.phys_io	= 0xfefff000,
	.io_pg_offst	= ((0xfffff000) >> 18) & 0xfffc,
	.boot_params	= 0x00000100,
	.map_io		= iop3xx_map_io,
150
	.init_irq	= iop33x_init_irq,
151 152 153
	.timer		= &iq80332_timer,
	.init_machine	= iq80332_init_machine,
MACHINE_END