iq80331.c
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/*
* arch/arm/mach-iop33x/iq80331.c
*
* Board support code for the Intel IQ80331 platform.
*
* Author: Dave Jiang <dave.jiang@intel.com>
* Copyright (C) 2003 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/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <mach/hardware.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>
#include <mach/time.h>
/*
* IQ80331 timer tick configuration.
*/
static void __init iq80331_timer_init(void)
{
/* D-Step parts run at a higher internal bus frequency */
if (*IOP3XX_ATURID >= 0xa)
iop_init_time(333000000);
else
iop_init_time(266000000);
}
/*
* IQ80331 PCI.
*/
static int __init
iq80331_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq;
if (slot == 1 && pin == 1) {
/* PCI-X Slot INTA */
irq = IRQ_IOP33X_XINT1;
} else if (slot == 1 && pin == 2) {
/* PCI-X Slot INTB */
irq = IRQ_IOP33X_XINT2;
} else if (slot == 1 && pin == 3) {
/* PCI-X Slot INTC */
irq = IRQ_IOP33X_XINT3;
} else if (slot == 1 && pin == 4) {
/* PCI-X Slot INTD */
irq = IRQ_IOP33X_XINT0;
} else if (slot == 2) {
/* GigE */
irq = IRQ_IOP33X_XINT2;
} else {
printk(KERN_ERR "iq80331_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 iq80331_pci __initdata = {
.nr_controllers = 1,
.ops = &iop3xx_ops,
.setup = iop3xx_pci_setup,
.preinit = iop3xx_pci_preinit_cond,
.map_irq = iq80331_pci_map_irq,
};
static int __init iq80331_pci_init(void)
{
if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
machine_is_iq80331())
pci_common_init(&iq80331_pci);
return 0;
}
subsys_initcall(iq80331_pci_init);
/*
* IQ80331 machine initialisation.
*/
static struct physmap_flash_data iq80331_flash_data = {
.width = 1,
};
static struct resource iq80331_flash_resource = {
.start = 0xc0000000,
.end = 0xc07fffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device iq80331_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &iq80331_flash_data,
},
.num_resources = 1,
.resource = &iq80331_flash_resource,
};
static struct resource iq80331_gpio_res[] = {
DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x1780), 0x10),
};
static void __init iq80331_init_machine(void)
{
platform_device_register_simple("gpio-iop", 0,
iq80331_gpio_res,
ARRAY_SIZE(iq80331_gpio_res));
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(&iq80331_flash_device);
platform_device_register(&iop3xx_dma_0_channel);
platform_device_register(&iop3xx_dma_1_channel);
platform_device_register(&iop3xx_aau_channel);
}
MACHINE_START(IQ80331, "Intel IQ80331")
/* Maintainer: Intel Corp. */
.atag_offset = 0x100,
.map_io = iop3xx_map_io,
.init_irq = iop33x_init_irq,
.init_time = iq80331_timer_init,
.init_machine = iq80331_init_machine,
.restart = iop3xx_restart,
MACHINE_END