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+/*
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+ * arch/arm/mach-iop32x/iq31244.c
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+ *
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+ * Board support code for the Intel EP80219 and IQ31244 platforms.
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+ *
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+ * Author: Rory Bolt <rorybolt@pacbell.net>
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+ * Copyright (C) 2002 Rory Bolt
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+ * Copyright 2003 (c) MontaVista, Software, Inc.
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+ * Copyright (C) 2004 Intel Corp.
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License as published by the
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+ * Free Software Foundation; either version 2 of the License, or (at your
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+ * option) any later version.
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+ */
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+
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+#include <linux/mm.h>
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+#include <linux/init.h>
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+#include <linux/delay.h>
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+#include <linux/kernel.h>
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+#include <linux/pci.h>
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+#include <linux/pm.h>
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+#include <linux/string.h>
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+#include <linux/slab.h>
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+#include <linux/serial_core.h>
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+#include <linux/serial_8250.h>
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+#include <linux/mtd/physmap.h>
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+#include <linux/platform_device.h>
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+#include <asm/hardware.h>
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+#include <asm/io.h>
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+#include <asm/irq.h>
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+#include <asm/mach/arch.h>
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+#include <asm/mach/map.h>
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+#include <asm/mach/pci.h>
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+#include <asm/mach/time.h>
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+#include <asm/mach-types.h>
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+#include <asm/page.h>
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+#include <asm/pgtable.h>
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+
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+
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+/*
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+ * The EP80219 and IQ31244 use the same machine ID. To find out
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+ * which of the two we're running on, we look at the processor ID.
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+ */
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+static int is_80219(void)
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+{
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+ extern int processor_id;
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+ return !!((processor_id & 0xffffffe0) == 0x69052e20);
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+}
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+
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+
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+/*
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+ * EP80219/IQ31244 timer tick configuration.
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+ */
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+static void __init iq31244_timer_init(void)
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+{
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+ if (is_80219()) {
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+ /* 33.333 MHz crystal. */
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+ iop3xx_init_time(200000000);
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+ } else {
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+ /* 33.000 MHz crystal. */
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+ iop3xx_init_time(198000000);
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+ }
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+}
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+
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+static struct sys_timer iq31244_timer = {
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+ .init = iq31244_timer_init,
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+ .offset = iop3xx_gettimeoffset,
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+};
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+
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+
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+/*
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+ * IQ31244 I/O.
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+ */
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+static struct map_desc iq31244_io_desc[] __initdata = {
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+ { /* on-board devices */
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+ .virtual = IQ31244_UART,
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+ .pfn = __phys_to_pfn(IQ31244_UART),
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+ .length = 0x00100000,
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+ .type = MT_DEVICE,
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+ },
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+};
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+
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+void __init iq31244_map_io(void)
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+{
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+ iop3xx_map_io();
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+ iotable_init(iq31244_io_desc, ARRAY_SIZE(iq31244_io_desc));
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+}
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+
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+
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+/*
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+ * EP80219/IQ31244 PCI.
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+ */
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+static inline int __init
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+ep80219_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
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+{
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+ int irq;
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+
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+ if (slot == 0) {
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+ /* CFlash */
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+ irq = IRQ_IOP321_XINT1;
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+ } else if (slot == 1) {
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+ /* 82551 Pro 100 */
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+ irq = IRQ_IOP321_XINT0;
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+ } else if (slot == 2) {
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+ /* PCI-X Slot */
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+ irq = IRQ_IOP321_XINT3;
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+ } else if (slot == 3) {
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+ /* SATA */
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+ irq = IRQ_IOP321_XINT2;
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+ } else {
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+ printk(KERN_ERR "ep80219_pci_map_irq() called for unknown "
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+ "device PCI:%d:%d:%d\n", dev->bus->number,
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+ PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
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+ irq = -1;
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+ }
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+
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+ return irq;
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+}
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+
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+static struct hw_pci ep80219_pci __initdata = {
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+ .swizzle = pci_std_swizzle,
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+ .nr_controllers = 1,
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+ .setup = iop3xx_pci_setup,
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+ .preinit = iop3xx_pci_preinit,
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+ .scan = iop3xx_pci_scan_bus,
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+ .map_irq = ep80219_pci_map_irq,
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+};
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+
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+static inline int __init
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+iq31244_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
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+{
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+ int irq;
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+
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+ if (slot == 0) {
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+ /* CFlash */
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+ irq = IRQ_IOP321_XINT1;
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+ } else if (slot == 1) {
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+ /* SATA */
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+ irq = IRQ_IOP321_XINT2;
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+ } else if (slot == 2) {
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+ /* PCI-X Slot */
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+ irq = IRQ_IOP321_XINT3;
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+ } else if (slot == 3) {
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+ /* 82546 GigE */
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+ irq = IRQ_IOP321_XINT0;
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+ } else {
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+ printk(KERN_ERR "iq31244_pci_map_irq() called for unknown "
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+ "device PCI:%d:%d:%d\n", dev->bus->number,
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+ PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
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+ irq = -1;
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+ }
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+
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+ return irq;
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+}
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+
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+static struct hw_pci iq31244_pci __initdata = {
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+ .swizzle = pci_std_swizzle,
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+ .nr_controllers = 1,
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+ .setup = iop3xx_pci_setup,
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+ .preinit = iop3xx_pci_preinit,
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+ .scan = iop3xx_pci_scan_bus,
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+ .map_irq = iq31244_pci_map_irq,
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+};
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+
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+static int __init iq31244_pci_init(void)
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+{
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+ if (machine_is_iq31244()) {
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+ if (is_80219()) {
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+ pci_common_init(&ep80219_pci);
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+ } else {
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+ pci_common_init(&iq31244_pci);
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+ }
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+ }
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+
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+ return 0;
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+}
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+
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+subsys_initcall(iq31244_pci_init);
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+
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+
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+/*
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+ * IQ31244 machine initialisation.
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+ */
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+static struct physmap_flash_data iq31244_flash_data = {
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+ .width = 2,
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+};
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+
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+static struct resource iq31244_flash_resource = {
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+ .start = 0xf0000000,
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+ .end = 0xf07fffff,
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+ .flags = IORESOURCE_MEM,
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+};
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+
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+static struct platform_device iq31244_flash_device = {
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+ .name = "physmap-flash",
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+ .id = 0,
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+ .dev = {
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+ .platform_data = &iq31244_flash_data,
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+ },
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+ .num_resources = 1,
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+ .resource = &iq31244_flash_resource,
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+};
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+
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+static struct plat_serial8250_port iq31244_serial_port[] = {
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+ {
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+ .mapbase = IQ31244_UART,
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+ .membase = (char *)IQ31244_UART,
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+ .irq = IRQ_IOP321_XINT1,
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+ .flags = UPF_SKIP_TEST,
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+ .iotype = UPIO_MEM,
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+ .regshift = 0,
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+ .uartclk = 1843200,
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+ },
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+ { },
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+};
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+
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+static struct resource iq31244_uart_resource = {
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+ .start = IQ31244_UART,
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+ .end = IQ31244_UART + 7,
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+ .flags = IORESOURCE_MEM,
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+};
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+
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+static struct platform_device iq31244_serial_device = {
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+ .name = "serial8250",
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+ .id = PLAT8250_DEV_PLATFORM,
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+ .dev = {
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+ .platform_data = iq31244_serial_port,
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+ },
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+ .num_resources = 1,
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+ .resource = &iq31244_uart_resource,
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+};
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+
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+/*
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+ * This function will send a SHUTDOWN_COMPLETE message to the PIC
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+ * controller over I2C. We are not using the i2c subsystem since
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+ * we are going to power off and it may be removed
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+ */
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+void ep80219_power_off(void)
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+{
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+ /*
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+ * Send the Address byte w/ the start condition
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+ */
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+ *IOP3XX_IDBR1 = 0x60;
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+ *IOP3XX_ICR1 = 0xE9;
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+ mdelay(1);
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+
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+ /*
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+ * Send the START_MSG byte w/ no start or stop condition
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+ */
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+ *IOP3XX_IDBR1 = 0x0F;
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+ *IOP3XX_ICR1 = 0xE8;
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+ mdelay(1);
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+
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+ /*
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+ * Send the SHUTDOWN_COMPLETE Message ID byte w/ no start or
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+ * stop condition
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+ */
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+ *IOP3XX_IDBR1 = 0x03;
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+ *IOP3XX_ICR1 = 0xE8;
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+ mdelay(1);
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+
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+ /*
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+ * Send an ignored byte w/ stop condition
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+ */
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+ *IOP3XX_IDBR1 = 0x00;
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+ *IOP3XX_ICR1 = 0xEA;
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+
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+ while (1)
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+ ;
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+}
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+
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+static void __init iq31244_init_machine(void)
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+{
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+ platform_device_register(&iop3xx_i2c0_device);
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+ platform_device_register(&iop3xx_i2c1_device);
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+ platform_device_register(&iq31244_flash_device);
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+ platform_device_register(&iq31244_serial_device);
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+
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+ if (is_80219())
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+ pm_power_off = ep80219_power_off;
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+}
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+
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+MACHINE_START(IQ31244, "Intel IQ31244")
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+ /* Maintainer: Intel Corp. */
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+ .phys_io = IQ31244_UART,
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+ .io_pg_offst = ((IQ31244_UART) >> 18) & 0xfffc,
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+ .boot_params = 0xa0000100,
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+ .map_io = iq31244_map_io,
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+ .init_irq = iop321_init_irq,
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+ .timer = &iq31244_timer,
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+ .init_machine = iq31244_init_machine,
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+MACHINE_END
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