/*
 * arch/arm/mach-iop32x/iq80321.c
 *
 * Board support code for the Intel IQ80321 platform.
 *
 * Author: Rory Bolt <rorybolt@pacbell.net>
 * Copyright (C) 2002 Rory Bolt
 * 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 <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>

/*
 * IQ80321 timer tick configuration.
 */
static void __init iq80321_timer_init(void)
{
        /* 33.333 MHz crystal.  */
        iop_init_time(200000000);
}

static struct sys_timer iq80321_timer = {
        .init           = iq80321_timer_init,
        .offset         = iop_gettimeoffset,
};


/*
 * IQ80321 I/O.
 */
static struct map_desc iq80321_io_desc[] __initdata = {
        {       /* on-board devices */
                .virtual        = IQ80321_UART,
                .pfn            = __phys_to_pfn(IQ80321_UART),
                .length         = 0x00100000,
                .type           = MT_DEVICE,
        },
};

void __init iq80321_map_io(void)
{
        iop3xx_map_io();
        iotable_init(iq80321_io_desc, ARRAY_SIZE(iq80321_io_desc));
}


/*
 * IQ80321 PCI.
 */
static int __init
iq80321_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
        int irq;

        if ((slot == 2 || slot == 6) && pin == 1) {
                /* PCI-X Slot INTA */
                irq = IRQ_IOP32X_XINT2;
        } else if ((slot == 2 || slot == 6) && pin == 2) {
                /* PCI-X Slot INTA */
                irq = IRQ_IOP32X_XINT3;
        } else if ((slot == 2 || slot == 6) && pin == 3) {
                /* PCI-X Slot INTA */
                irq = IRQ_IOP32X_XINT0;
        } else if ((slot == 2 || slot == 6) && pin == 4) {
                /* PCI-X Slot INTA */
                irq = IRQ_IOP32X_XINT1;
        } else if (slot == 4 || slot == 8) {
                /* Gig-E */
                irq = IRQ_IOP32X_XINT0;
        } else {
                printk(KERN_ERR "iq80321_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 iq80321_pci __initdata = {
        .swizzle        = pci_std_swizzle,
        .nr_controllers = 1,
        .setup          = iop3xx_pci_setup,
        .preinit        = iop3xx_pci_preinit_cond,
        .scan           = iop3xx_pci_scan_bus,
        .map_irq        = iq80321_pci_map_irq,
};

static int __init iq80321_pci_init(void)
{
        if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
                machine_is_iq80321())
                pci_common_init(&iq80321_pci);

        return 0;
}

subsys_initcall(iq80321_pci_init);


/*
 * IQ80321 machine initialisation.
 */
static struct physmap_flash_data iq80321_flash_data = {
        .width          = 1,
};

static struct resource iq80321_flash_resource = {
        .start          = 0xf0000000,
        .end            = 0xf07fffff,
        .flags          = IORESOURCE_MEM,
};

static struct platform_device iq80321_flash_device = {
        .name           = "physmap-flash",
        .id             = 0,
        .dev            = {
                .platform_data  = &iq80321_flash_data,
        },
        .num_resources  = 1,
        .resource       = &iq80321_flash_resource,
};

static struct plat_serial8250_port iq80321_serial_port[] = {
        {
                .mapbase        = IQ80321_UART,
                .membase        = (char *)IQ80321_UART,
                .irq            = IRQ_IOP32X_XINT1,
                .flags          = UPF_SKIP_TEST,
                .iotype         = UPIO_MEM,
                .regshift       = 0,
                .uartclk        = 1843200,
        },
        { },
};

static struct resource iq80321_uart_resource = {
        .start          = IQ80321_UART,
        .end            = IQ80321_UART + 7,
        .flags          = IORESOURCE_MEM,
};

static struct platform_device iq80321_serial_device = {
        .name           = "serial8250",
        .id             = PLAT8250_DEV_PLATFORM,
        .dev            = {
                .platform_data          = iq80321_serial_port,
        },
        .num_resources  = 1,
        .resource       = &iq80321_uart_resource,
};

static void __init iq80321_init_machine(void)
{
        platform_device_register(&iop3xx_i2c0_device);
        platform_device_register(&iop3xx_i2c1_device);
        platform_device_register(&iq80321_flash_device);
        platform_device_register(&iq80321_serial_device);
        platform_device_register(&iop3xx_dma_0_channel);
        platform_device_register(&iop3xx_dma_1_channel);
        platform_device_register(&iop3xx_aau_channel);
}

MACHINE_START(IQ80321, "Intel IQ80321")
        /* Maintainer: Intel Corp. */
        .phys_io        = IQ80321_UART,
        .io_pg_offst    = ((IQ80321_UART) >> 18) & 0xfffc,
        .boot_params    = 0xa0000100,
        .map_io         = iq80321_map_io,
        .init_irq       = iop32x_init_irq,
        .timer          = &iq80321_timer,
        .init_machine   = iq80321_init_machine,
MACHINE_END