Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

12 files changed, 1806 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
new file mode 100644
index 0000000..aacb5f9
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -0,0 +1,127 @@
+if ARCH_IXP4XX
+
+config ARCH_SUPPORTS_BIG_ENDIAN
+	bool
+	default y
+
+menu "Intel IXP4xx Implementation Options"
+
+comment "IXP4xx Platforms"
+
+config ARCH_AVILA
+	bool "Avila"
+	help
+	  Say 'Y' here if you want your kernel to support the Gateworks
+	  Avila Network Platform. For more information on this platform,
+	  see <file:Documentation/arm/IXP4xx>.
+
+config ARCH_ADI_COYOTE
+	bool "Coyote"
+	help
+	  Say 'Y' here if you want your kernel to support the ADI 
+	  Engineering Coyote Gateway Reference Platform. For more
+	  information on this platform, see <file:Documentation/arm/IXP4xx>.
+
+config ARCH_IXDP425
+	bool "IXDP425"
+	help
+	  Say 'Y' here if you want your kernel to support Intel's 
+	  IXDP425 Development Platform (Also known as Richfield).  
+	  For more information on this platform, see <file:Documentation/arm/IXP4xx>.
+
+config MACH_IXDPG425
+	bool "IXDPG425"
+	help
+	  Say 'Y' here if you want your kernel to support Intel's
+	  IXDPG425 Development Platform (Also known as Montajade).
+	  For more information on this platform, see <file:Documentation/arm/IXP4xx>.
+
+config MACH_IXDP465
+	bool "IXDP465"
+	help
+	  Say 'Y' here if you want your kernel to support Intel's
+	  IXDP465 Development Platform (Also known as BMP).
+	  For more information on this platform, see Documentation/arm/IXP4xx.
+
+
+#
+# IXCDP1100 is the exact same HW as IXDP425, but with a different machine 
+# number from the bootloader due to marketing monkeys, so we just enable it 
+# by default if IXDP425 is enabled.
+#
+config ARCH_IXCDP1100
+	bool 
+	depends on ARCH_IXDP425
+	default y
+
+config ARCH_PRPMC1100
+	bool "PrPMC1100"
+	help
+	  Say 'Y' here if you want your kernel to support the Motorola
+	  PrPCM1100 Processor Mezanine Module. For more information on
+	  this platform, see <file:Documentation/arm/IXP4xx>.
+
+#
+# Avila and IXDP share the same source for now. Will change in future
+#
+config	ARCH_IXDP4XX
+	bool
+	depends on ARCH_IXDP425 || ARCH_AVILA || MACH_IXDP465
+	default y
+
+#
+# Certain registers and IRQs are only enabled if supporting IXP465 CPUs
+#
+config CPU_IXP46X
+	bool
+	depends on MACH_IXDP465
+	default y
+
+config MACH_GTWX5715
+	bool "Gemtek WX5715 (Linksys WRV54G)"
+	depends on ARCH_IXP4XX
+	help
+		This board is currently inside the Linksys WRV54G Gateways.
+
+		IXP425 - 266mhz
+		32mb SDRAM
+		8mb Flash
+		miniPCI slot 0 does not have a card connector soldered to the board
+		miniPCI slot 1 has an ISL3880 802.11g card (Prism54)
+		npe0 is connected to a Kendin KS8995M Switch (4 ports)
+		npe1 is the "wan" port
+		"Console" UART is available on J11 as console
+		"High Speed" UART is n/c (as far as I can tell)
+		20 Pin ARM/Xscale JTAG interface on J2
+
+
+comment "IXP4xx Options"
+
+config IXP4XX_INDIRECT_PCI
+	bool "Use indirect PCI memory access"
+	help
+          IXP4xx provides two methods of accessing PCI memory space:
+
+          1) A direct mapped window from 0x48000000 to 0x4bffffff (64MB).
+             To access PCI via this space, we simply ioremap() the BAR
+             into the kernel and we can use the standard read[bwl]/write[bwl]
+             macros. This is the preferred method due to speed but it
+             limits the system to just 64MB of PCI memory. This can be 
+             problamatic if using video cards and other memory-heavy devices.
+          
+          2) If > 64MB of memory space is required, the IXP4xx can be 
+	     configured to use indirect registers to access PCI This allows 
+	     for up to 128MB (0x48000000 to 0x4fffffff) of memory on the bus. 
+	     The disadvantadge of this is that every PCI access requires 
+	     three local register accesses plus a spinlock, but in some 
+	     cases the performance hit is acceptable. In addition, you cannot 
+	     mmap() PCI devices in this case due to the indirect nature
+	     of the PCI window.
+
+	  By default, the direct method is used. Choose this option if you
+	  need to use the indirect method instead. If you don't know
+	  what you need, leave this option unselected.
+
+endmenu
+
+endif
diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
new file mode 100644
index 0000000..ddecbda
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the linux kernel.
+#
+
+obj-y	+= common.o common-pci.o 
+
+obj-$(CONFIG_ARCH_IXDP4XX)	+= ixdp425-pci.o ixdp425-setup.o
+obj-$(CONFIG_MACH_IXDPG425)	+= ixdpg425-pci.o coyote-setup.o
+obj-$(CONFIG_ARCH_ADI_COYOTE)	+= coyote-pci.o coyote-setup.o
+obj-$(CONFIG_MACH_GTWX5715)	+= gtwx5715-pci.o gtwx5715-setup.o
+
diff --git a/arch/arm/mach-ixp4xx/Makefile.boot b/arch/arm/mach-ixp4xx/Makefile.boot
new file mode 100644
index 0000000..d84c580
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/Makefile.boot
@@ -0,0 +1,3 @@
+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
new file mode 100644
index 0000000..94bcdb93
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -0,0 +1,527 @@
+/*
+ * arch/arm/mach-ixp4xx/common-pci.c 
+ *
+ * IXP4XX PCI routines for all platforms
+ *
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003 Greg Ungerer <gerg@snapgear.com>
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <asm/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+#include <asm/system.h>
+#include <asm/mach/pci.h>
+#include <asm/hardware.h>
+
+
+/*
+ * IXP4xx PCI read function is dependent on whether we are 
+ * running A0 or B0 (AppleGate) silicon.
+ */
+int (*ixp4xx_pci_read)(u32 addr, u32 cmd, u32* data);
+
+/*
+ * Base address for PCI regsiter region
+ */
+unsigned long ixp4xx_pci_reg_base = 0;
+
+/*
+ * PCI cfg an I/O routines are done by programming a 
+ * command/byte enable register, and then read/writing
+ * the data from a data regsiter. We need to ensure
+ * these transactions are atomic or we will end up
+ * with corrupt data on the bus or in a driver.
+ */
+static DEFINE_SPINLOCK(ixp4xx_pci_lock);
+
+/*
+ * Read from PCI config space
+ */
+static void crp_read(u32 ad_cbe, u32 *data)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+	*PCI_CRP_AD_CBE = ad_cbe;
+	*data = *PCI_CRP_RDATA;
+	spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+}
+
+/*
+ * Write to PCI config space
+ */
+static void crp_write(u32 ad_cbe, u32 data)
+{ 
+	unsigned long flags;
+	spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+	*PCI_CRP_AD_CBE = CRP_AD_CBE_WRITE | ad_cbe;
+	*PCI_CRP_WDATA = data;
+	spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+}
+
+static inline int check_master_abort(void)
+{
+	/* check Master Abort bit after access */
+	unsigned long isr = *PCI_ISR;
+
+	if (isr & PCI_ISR_PFE) {
+		/* make sure the Master Abort bit is reset */    
+		*PCI_ISR = PCI_ISR_PFE;
+		pr_debug("%s failed\n", __FUNCTION__);
+		return 1;
+	}
+
+	return 0;
+}
+
+int ixp4xx_pci_read_errata(u32 addr, u32 cmd, u32* data)
+{
+	unsigned long flags;
+	int retval = 0;
+	int i;
+
+	spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+
+	*PCI_NP_AD = addr;
+
+	/* 
+	 * PCI workaround  - only works if NP PCI space reads have 
+	 * no side effects!!! Read 8 times. last one will be good.
+	 */
+	for (i = 0; i < 8; i++) {
+		*PCI_NP_CBE = cmd;
+		*data = *PCI_NP_RDATA;
+		*data = *PCI_NP_RDATA;
+	}
+
+	if(check_master_abort())
+		retval = 1;
+
+	spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+	return retval;
+}
+
+int ixp4xx_pci_read_no_errata(u32 addr, u32 cmd, u32* data)
+{
+	unsigned long flags;
+	int retval = 0;
+
+	spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+
+	*PCI_NP_AD = addr;
+
+	/* set up and execute the read */    
+	*PCI_NP_CBE = cmd;
+
+	/* the result of the read is now in NP_RDATA */
+	*data = *PCI_NP_RDATA; 
+
+	if(check_master_abort())
+		retval = 1;
+
+	spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+	return retval;
+}
+
+int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data)
+{    
+	unsigned long flags;
+	int retval = 0;
+
+	spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+
+	*PCI_NP_AD = addr;
+
+	/* set up the write */
+	*PCI_NP_CBE = cmd;
+
+	/* execute the write by writing to NP_WDATA */
+	*PCI_NP_WDATA = data;
+
+	if(check_master_abort())
+		retval = 1;
+
+	spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+	return retval;
+}
+
+static u32 ixp4xx_config_addr(u8 bus_num, u16 devfn, int where)
+{
+	u32 addr;
+	if (!bus_num) {
+		/* type 0 */
+		addr = BIT(32-PCI_SLOT(devfn)) | ((PCI_FUNC(devfn)) << 8) | 
+		    (where & ~3);	
+	} else {
+		/* type 1 */
+		addr = (bus_num << 16) | ((PCI_SLOT(devfn)) << 11) | 
+			((PCI_FUNC(devfn)) << 8) | (where & ~3) | 1;
+	}
+	return addr;
+}
+
+/*
+ * Mask table, bits to mask for quantity of size 1, 2 or 4 bytes.
+ * 0 and 3 are not valid indexes...
+ */
+static u32 bytemask[] = {
+	/*0*/	0,
+	/*1*/	0xff,
+	/*2*/	0xffff,
+	/*3*/	0,
+	/*4*/	0xffffffff,
+};
+
+static u32 local_byte_lane_enable_bits(u32 n, int size)
+{
+	if (size == 1)
+		return (0xf & ~BIT(n)) << CRP_AD_CBE_BESL;
+	if (size == 2)
+		return (0xf & ~(BIT(n) | BIT(n+1))) << CRP_AD_CBE_BESL;
+	if (size == 4)
+		return 0;
+	return 0xffffffff;
+}
+
+static int local_read_config(int where, int size, u32 *value)
+{ 
+	u32 n, data;
+	pr_debug("local_read_config from %d size %d\n", where, size);
+	n = where % 4;
+	crp_read(where & ~3, &data);
+	*value = (data >> (8*n)) & bytemask[size];
+	pr_debug("local_read_config read %#x\n", *value);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int local_write_config(int where, int size, u32 value)
+{
+	u32 n, byte_enables, data;
+	pr_debug("local_write_config %#x to %d size %d\n", value, where, size);
+	n = where % 4;
+	byte_enables = local_byte_lane_enable_bits(n, size);
+	if (byte_enables == 0xffffffff)
+		return PCIBIOS_BAD_REGISTER_NUMBER;
+	data = value << (8*n);
+	crp_write((where & ~3) | byte_enables, data);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static u32 byte_lane_enable_bits(u32 n, int size)
+{
+	if (size == 1)
+		return (0xf & ~BIT(n)) << 4;
+	if (size == 2)
+		return (0xf & ~(BIT(n) | BIT(n+1))) << 4;
+	if (size == 4)
+		return 0;
+	return 0xffffffff;
+}
+
+static int ixp4xx_pci_read_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
+{
+	u32 n, byte_enables, addr, data;
+	u8 bus_num = bus->number;
+
+	pr_debug("read_config from %d size %d dev %d:%d:%d\n", where, size,
+		bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn));
+
+	*value = 0xffffffff;
+	n = where % 4;
+	byte_enables = byte_lane_enable_bits(n, size);
+	if (byte_enables == 0xffffffff)
+		return PCIBIOS_BAD_REGISTER_NUMBER;
+
+	addr = ixp4xx_config_addr(bus_num, devfn, where);
+	if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_CONFIGREAD, &data))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	*value = (data >> (8*n)) & bytemask[size];
+	pr_debug("read_config_byte read %#x\n", *value);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int ixp4xx_pci_write_config(struct pci_bus *bus,  unsigned int devfn, int where, int size, u32 value)
+{
+	u32 n, byte_enables, addr, data;
+	u8 bus_num = bus->number;
+
+	pr_debug("write_config_byte %#x to %d size %d dev %d:%d:%d\n", value, where,
+		size, bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn));
+
+	n = where % 4;
+	byte_enables = byte_lane_enable_bits(n, size);
+	if (byte_enables == 0xffffffff)
+		return PCIBIOS_BAD_REGISTER_NUMBER;
+
+	addr = ixp4xx_config_addr(bus_num, devfn, where);
+	data = value << (8*n);
+	if (ixp4xx_pci_write(addr, byte_enables | NP_CMD_CONFIGWRITE, data))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops ixp4xx_ops = {
+	.read =  ixp4xx_pci_read_config,
+	.write = ixp4xx_pci_write_config,
+};
+
+/*
+ * PCI abort handler
+ */
+static int abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+{
+	u32 isr, status;
+
+	isr = *PCI_ISR;
+	local_read_config(PCI_STATUS, 2, &status);
+	pr_debug("PCI: abort_handler addr = %#lx, isr = %#x, "
+		"status = %#x\n", addr, isr, status);
+
+	/* make sure the Master Abort bit is reset */    
+	*PCI_ISR = PCI_ISR_PFE;
+	status |= PCI_STATUS_REC_MASTER_ABORT;
+	local_write_config(PCI_STATUS, 2, status);
+
+	/*
+	 * If it was an imprecise abort, then we need to correct the
+	 * return address to be _after_ the instruction.
+	 */
+	if (fsr & (1 << 10))
+		regs->ARM_pc += 4;
+
+	return 0;
+}
+
+
+/*
+ * Setup DMA mask to 64MB on PCI devices. Ignore all other devices.
+ */
+static int ixp4xx_pci_platform_notify(struct device *dev)
+{
+	if(dev->bus == &pci_bus_type) {
+		*dev->dma_mask =  SZ_64M - 1;
+		dev->coherent_dma_mask = SZ_64M - 1;
+		dmabounce_register_dev(dev, 2048, 4096);
+	}
+	return 0;
+}
+
+static int ixp4xx_pci_platform_notify_remove(struct device *dev)
+{
+	if(dev->bus == &pci_bus_type) {
+		dmabounce_unregister_dev(dev);
+	}
+	return 0;
+}
+
+int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
+{
+	return (dev->bus == &pci_bus_type ) && ((dma_addr + size) >= SZ_64M);
+}
+
+void __init ixp4xx_pci_preinit(void)
+{  
+	unsigned long processor_id;
+
+	asm("mrc p15, 0, %0, cr0, cr0, 0;" : "=r"(processor_id) :);
+
+	/*
+	 * Determine which PCI read method to use.
+	 * Rev 0 IXP425 requires workaround.
+	 */
+	if (!(processor_id & 0xf) && !cpu_is_ixp46x()) {
+		printk("PCI: IXP42x A0 silicon detected - "
+			"PCI Non-Prefetch Workaround Enabled\n");
+		ixp4xx_pci_read = ixp4xx_pci_read_errata;
+	} else
+		ixp4xx_pci_read = ixp4xx_pci_read_no_errata;
+
+
+	/* hook in our fault handler for PCI errors */
+	hook_fault_code(16+6, abort_handler, SIGBUS, "imprecise external abort");
+
+	pr_debug("setup PCI-AHB(inbound) and AHB-PCI(outbound) address mappings\n");
+
+	/* 
+	 * We use identity AHB->PCI address translation
+	 * in the 0x48000000 to 0x4bffffff address space
+	 */
+	*PCI_PCIMEMBASE = 0x48494A4B;
+
+	/* 
+	 * We also use identity PCI->AHB address translation
+	 * in 4 16MB BARs that begin at the physical memory start
+	 */
+	*PCI_AHBMEMBASE = (PHYS_OFFSET & 0xFF000000) + 
+		((PHYS_OFFSET & 0xFF000000) >> 8) +
+		((PHYS_OFFSET & 0xFF000000) >> 16) +
+		((PHYS_OFFSET & 0xFF000000) >> 24) +
+		0x00010203;
+
+	if (*PCI_CSR & PCI_CSR_HOST) {
+		printk("PCI: IXP4xx is host\n");
+
+		pr_debug("setup BARs in controller\n");
+
+		/*
+		 * We configure the PCI inbound memory windows to be 
+		 * 1:1 mapped to SDRAM
+		 */
+		local_write_config(PCI_BASE_ADDRESS_0, 4, PHYS_OFFSET + 0x00000000);
+		local_write_config(PCI_BASE_ADDRESS_1, 4, PHYS_OFFSET + 0x01000000);
+		local_write_config(PCI_BASE_ADDRESS_2, 4, PHYS_OFFSET + 0x02000000);
+		local_write_config(PCI_BASE_ADDRESS_3, 4, PHYS_OFFSET + 0x03000000);
+
+		/*
+		 * Enable CSR window at 0xff000000.
+		 */
+		local_write_config(PCI_BASE_ADDRESS_4, 4, 0xff000008);
+
+		/*
+		 * Enable the IO window to be way up high, at 0xfffffc00
+		 */
+		local_write_config(PCI_BASE_ADDRESS_5, 4, 0xfffffc01);
+	} else {
+		printk("PCI: IXP4xx is target - No bus scan performed\n");
+	}
+
+	printk("PCI: IXP4xx Using %s access for memory space\n",
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+			"direct"
+#else
+			"indirect"
+#endif
+		);
+
+	pr_debug("clear error bits in ISR\n");
+	*PCI_ISR = PCI_ISR_PSE | PCI_ISR_PFE | PCI_ISR_PPE | PCI_ISR_AHBE;
+
+	/*
+	 * Set Initialize Complete in PCI Control Register: allow IXP4XX to
+	 * respond to PCI configuration cycles. Specify that the AHB bus is
+	 * operating in big endian mode. Set up byte lane swapping between 
+	 * little-endian PCI and the big-endian AHB bus 
+	 */
+#ifdef __ARMEB__
+	*PCI_CSR = PCI_CSR_IC | PCI_CSR_ABE | PCI_CSR_PDS | PCI_CSR_ADS;
+#else
+	*PCI_CSR = PCI_CSR_IC;
+#endif
+
+	pr_debug("DONE\n");
+}
+
+int ixp4xx_setup(int nr, struct pci_sys_data *sys)
+{
+	struct resource *res;
+
+	if (nr >= 1)
+		return 0;
+
+	res = kmalloc(sizeof(*res) * 2, GFP_KERNEL);
+	if (res == NULL) {
+		/* 
+		 * If we're out of memory this early, something is wrong,
+		 * so we might as well catch it here.
+		 */
+		panic("PCI: unable to allocate resources?\n");
+	}
+	memset(res, 0, sizeof(*res) * 2);
+
+	local_write_config(PCI_COMMAND, 2, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
+
+	res[0].name = "PCI I/O Space";
+	res[0].start = 0x00001000;
+	res[0].end = 0xffff0000;
+	res[0].flags = IORESOURCE_IO;
+
+	res[1].name = "PCI Memory Space";
+	res[1].start = 0x48000000;
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+	res[1].end = 0x4bffffff;
+#else
+	res[1].end = 0x4fffffff;
+#endif
+	res[1].flags = IORESOURCE_MEM;
+
+	request_resource(&ioport_resource, &res[0]);
+	request_resource(&iomem_resource, &res[1]);
+
+	sys->resource[0] = &res[0];
+	sys->resource[1] = &res[1];
+	sys->resource[2] = NULL;
+
+	platform_notify = ixp4xx_pci_platform_notify;
+	platform_notify_remove = ixp4xx_pci_platform_notify_remove;
+
+	return 1;
+}
+
+struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
+{
+	return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys);
+}
+
+/*
+ * We override these so we properly do dmabounce otherwise drivers
+ * are able to set the dma_mask to 0xffffffff and we can no longer
+ * trap bounces. :(
+ *
+ * We just return true on everyhing except for < 64MB in which case 
+ * we will fail miseralby and die since we can't handle that case.
+ */
+int
+pci_set_dma_mask(struct pci_dev *dev, u64 mask)
+{
+	if (mask >= SZ_64M - 1 )
+		return 0;
+
+	return -EIO;
+}
+    
+int
+pci_dac_set_dma_mask(struct pci_dev *dev, u64 mask)
+{
+	if (mask >= SZ_64M - 1 )
+		return 0;
+
+	return -EIO;
+}
+
+int
+pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
+{
+	if (mask >= SZ_64M - 1 )
+		return 0;
+
+	return -EIO;
+}
+
+EXPORT_SYMBOL(pci_set_dma_mask);
+EXPORT_SYMBOL(pci_dac_set_dma_mask);
+EXPORT_SYMBOL(pci_set_consistent_dma_mask);
+EXPORT_SYMBOL(ixp4xx_pci_read);
+EXPORT_SYMBOL(ixp4xx_pci_write);
+
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
new file mode 100644
index 0000000..267ba02
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -0,0 +1,353 @@
+/*
+ * arch/arm/mach-ixp4xx/common.c
+ *
+ * Generic code shared across all IXP4XX platforms
+ *
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2002 (c) Intel Corporation
+ * Copyright 2003-2004 (c) MontaVista, Software, Inc. 
+ * 
+ * This file is licensed under  the terms of the GNU General Public 
+ * License version 2. This program is licensed "as is" without any 
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/serial.h>
+#include <linux/sched.h>
+#include <linux/tty.h>
+#include <linux/serial_core.h>
+#include <linux/bootmem.h>
+#include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/time.h>
+#include <linux/timex.h>
+
+#include <asm/hardware.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/irq.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/time.h>
+
+enum ixp4xx_irq_type {
+	IXP4XX_IRQ_LEVEL, IXP4XX_IRQ_EDGE
+};
+static void ixp4xx_config_irq(unsigned irq, enum ixp4xx_irq_type type);
+
+/*************************************************************************
+ * GPIO acces functions
+ *************************************************************************/
+
+/*
+ * Configure GPIO line for input, interrupt, or output operation
+ *
+ * TODO: Enable/disable the irq_desc based on interrupt or output mode.
+ * TODO: Should these be named ixp4xx_gpio_?
+ */
+void gpio_line_config(u8 line, u32 style)
+{
+	static const int gpio2irq[] = {
+		6, 7, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29
+	};
+	u32 enable;
+	volatile u32 *int_reg;
+	u32 int_style;
+	enum ixp4xx_irq_type irq_type;
+
+	enable = *IXP4XX_GPIO_GPOER;
+
+	if (style & IXP4XX_GPIO_OUT) {
+		enable &= ~((1) << line);
+	} else if (style & IXP4XX_GPIO_IN) {
+		enable |= ((1) << line);
+
+		switch (style & IXP4XX_GPIO_INTSTYLE_MASK)
+		{
+		case (IXP4XX_GPIO_ACTIVE_HIGH):
+			int_style = IXP4XX_GPIO_STYLE_ACTIVE_HIGH;
+			irq_type = IXP4XX_IRQ_LEVEL;
+			break;
+		case (IXP4XX_GPIO_ACTIVE_LOW):
+			int_style = IXP4XX_GPIO_STYLE_ACTIVE_LOW;
+			irq_type = IXP4XX_IRQ_LEVEL;
+			break;
+		case (IXP4XX_GPIO_RISING_EDGE):
+			int_style = IXP4XX_GPIO_STYLE_RISING_EDGE;
+			irq_type = IXP4XX_IRQ_EDGE;
+			break;
+		case (IXP4XX_GPIO_FALLING_EDGE):
+			int_style = IXP4XX_GPIO_STYLE_FALLING_EDGE;
+			irq_type = IXP4XX_IRQ_EDGE;
+			break;
+		case (IXP4XX_GPIO_TRANSITIONAL):
+			int_style = IXP4XX_GPIO_STYLE_TRANSITIONAL;
+			irq_type = IXP4XX_IRQ_EDGE;
+			break;
+		default:
+			int_style = IXP4XX_GPIO_STYLE_ACTIVE_HIGH;
+			irq_type = IXP4XX_IRQ_LEVEL;
+			break;
+		}
+
+		if (style & IXP4XX_GPIO_INTSTYLE_MASK)
+			ixp4xx_config_irq(gpio2irq[line], irq_type);
+
+		if (line >= 8) {	/* pins 8-15 */ 
+			line -= 8;
+			int_reg = IXP4XX_GPIO_GPIT2R;
+		}
+		else {			/* pins 0-7 */
+			int_reg = IXP4XX_GPIO_GPIT1R;
+		}
+
+		/* Clear the style for the appropriate pin */
+		*int_reg &= ~(IXP4XX_GPIO_STYLE_CLEAR << 
+		    		(line * IXP4XX_GPIO_STYLE_SIZE));
+
+		/* Set the new style */
+		*int_reg |= (int_style << (line * IXP4XX_GPIO_STYLE_SIZE));
+	}
+
+	*IXP4XX_GPIO_GPOER = enable;
+}
+
+EXPORT_SYMBOL(gpio_line_config);
+
+/*************************************************************************
+ * IXP4xx chipset I/O mapping
+ *************************************************************************/
+static struct map_desc ixp4xx_io_desc[] __initdata = {
+	{	/* UART, Interrupt ctrl, GPIO, timers, NPEs, MACs, USB .... */
+		.virtual	= IXP4XX_PERIPHERAL_BASE_VIRT,
+		.physical	= IXP4XX_PERIPHERAL_BASE_PHYS,
+		.length		= IXP4XX_PERIPHERAL_REGION_SIZE,
+		.type		= MT_DEVICE
+	}, {	/* Expansion Bus Config Registers */
+		.virtual	= IXP4XX_EXP_CFG_BASE_VIRT,
+		.physical	= IXP4XX_EXP_CFG_BASE_PHYS,
+		.length		= IXP4XX_EXP_CFG_REGION_SIZE,
+		.type		= MT_DEVICE
+	}, {	/* PCI Registers */
+		.virtual	= IXP4XX_PCI_CFG_BASE_VIRT,
+		.physical	= IXP4XX_PCI_CFG_BASE_PHYS,
+		.length		= IXP4XX_PCI_CFG_REGION_SIZE,
+		.type		= MT_DEVICE
+	}
+};
+
+void __init ixp4xx_map_io(void)
+{
+  	iotable_init(ixp4xx_io_desc, ARRAY_SIZE(ixp4xx_io_desc));
+}
+
+
+/*************************************************************************
+ * IXP4xx chipset IRQ handling
+ *
+ * TODO: GPIO IRQs should be marked invalid until the user of the IRQ
+ *       (be it PCI or something else) configures that GPIO line
+ *       as an IRQ.
+ **************************************************************************/
+static void ixp4xx_irq_mask(unsigned int irq)
+{
+	if (cpu_is_ixp46x() && irq >= 32)
+		*IXP4XX_ICMR2 &= ~(1 << (irq - 32));
+	else
+		*IXP4XX_ICMR &= ~(1 << irq);
+}
+
+static void ixp4xx_irq_unmask(unsigned int irq)
+{
+	if (cpu_is_ixp46x() && irq >= 32)
+		*IXP4XX_ICMR2 |= (1 << (irq - 32));
+	else
+		*IXP4XX_ICMR |= (1 << irq);
+}
+
+static void ixp4xx_irq_ack(unsigned int irq)
+{
+	static int irq2gpio[32] = {
+		-1, -1, -1, -1, -1, -1,  0,  1,
+		-1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1,  2,  3,  4,  5,  6,
+		 7,  8,  9, 10, 11, 12, -1, -1,
+	};
+	int line = (irq < 32) ? irq2gpio[irq] : -1;
+
+	if (line >= 0)
+		gpio_line_isr_clear(line);
+}
+
+/*
+ * Level triggered interrupts on GPIO lines can only be cleared when the
+ * interrupt condition disappears.
+ */
+static void ixp4xx_irq_level_unmask(unsigned int irq)
+{
+	ixp4xx_irq_ack(irq);
+	ixp4xx_irq_unmask(irq);
+}
+
+static struct irqchip ixp4xx_irq_level_chip = {
+	.ack	= ixp4xx_irq_mask,
+	.mask	= ixp4xx_irq_mask,
+	.unmask	= ixp4xx_irq_level_unmask,
+};
+
+static struct irqchip ixp4xx_irq_edge_chip = {
+	.ack	= ixp4xx_irq_ack,
+	.mask	= ixp4xx_irq_mask,
+	.unmask	= ixp4xx_irq_unmask,
+};
+
+static void ixp4xx_config_irq(unsigned irq, enum ixp4xx_irq_type type)
+{
+	switch (type) {
+	case IXP4XX_IRQ_LEVEL:
+		set_irq_chip(irq, &ixp4xx_irq_level_chip);
+		set_irq_handler(irq, do_level_IRQ);
+		break;
+	case IXP4XX_IRQ_EDGE:
+		set_irq_chip(irq, &ixp4xx_irq_edge_chip);
+		set_irq_handler(irq, do_edge_IRQ);
+		break;
+	}
+	set_irq_flags(irq, IRQF_VALID);
+}
+
+void __init ixp4xx_init_irq(void)
+{
+	int i = 0;
+
+	/* Route all sources to IRQ instead of FIQ */
+	*IXP4XX_ICLR = 0x0;
+
+	/* Disable all interrupt */
+	*IXP4XX_ICMR = 0x0; 
+
+	if (cpu_is_ixp46x()) {
+		/* Route upper 32 sources to IRQ instead of FIQ */
+		*IXP4XX_ICLR2 = 0x00;
+
+		/* Disable upper 32 interrupts */
+		*IXP4XX_ICMR2 = 0x00;
+	}
+
+        /* Default to all level triggered */
+	for(i = 0; i < NR_IRQS; i++)
+		ixp4xx_config_irq(i, IXP4XX_IRQ_LEVEL);
+}
+
+
+/*************************************************************************
+ * IXP4xx timer tick
+ * We use OS timer1 on the CPU for the timer tick and the timestamp 
+ * counter as a source of real clock ticks to account for missed jiffies.
+ *************************************************************************/
+
+static unsigned volatile last_jiffy_time;
+
+#define CLOCK_TICKS_PER_USEC	((CLOCK_TICK_RATE + USEC_PER_SEC/2) / USEC_PER_SEC)
+
+/* IRQs are disabled before entering here from do_gettimeofday() */
+static unsigned long ixp4xx_gettimeoffset(void)
+{
+	u32 elapsed;
+
+	elapsed = *IXP4XX_OSTS - last_jiffy_time;
+
+	return elapsed / CLOCK_TICKS_PER_USEC;
+}
+
+static irqreturn_t ixp4xx_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	write_seqlock(&xtime_lock);
+
+	/* Clear Pending Interrupt by writing '1' to it */
+	*IXP4XX_OSST = IXP4XX_OSST_TIMER_1_PEND;
+
+	/*
+	 * Catch up with the real idea of time
+	 */
+	while ((*IXP4XX_OSTS - last_jiffy_time) > LATCH) {
+		timer_tick(regs);
+		last_jiffy_time += LATCH;
+	}
+
+	write_sequnlock(&xtime_lock);
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction ixp4xx_timer_irq = {
+	.name		= "IXP4xx Timer Tick",
+	.flags		= SA_INTERRUPT,
+	.handler	= ixp4xx_timer_interrupt
+};
+
+static void __init ixp4xx_timer_init(void)
+{
+	/* Clear Pending Interrupt by writing '1' to it */
+	*IXP4XX_OSST = IXP4XX_OSST_TIMER_1_PEND;
+
+	/* Setup the Timer counter value */
+	*IXP4XX_OSRT1 = (LATCH & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE;
+
+	/* Reset time-stamp counter */
+	*IXP4XX_OSTS = 0;
+	last_jiffy_time = 0;
+
+	/* Connect the interrupt handler and enable the interrupt */
+	setup_irq(IRQ_IXP4XX_TIMER1, &ixp4xx_timer_irq);
+}
+
+struct sys_timer ixp4xx_timer = {
+	.init		= ixp4xx_timer_init,
+	.offset		= ixp4xx_gettimeoffset,
+};
+
+static struct resource ixp46x_i2c_resources[] = {
+	[0] = {
+		.start 	= 0xc8011000,
+		.end	= 0xc801101c,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start 	= IRQ_IXP4XX_I2C,
+		.end	= IRQ_IXP4XX_I2C,
+		.flags	= IORESOURCE_IRQ
+	}
+};
+
+/*
+ * I2C controller. The IXP46x uses the same block as the IOP3xx, so
+ * we just use the same device name.
+ */
+static struct platform_device ixp46x_i2c_controller = {
+	.name		= "IOP3xx-I2C",
+	.id		= 0,
+	.num_resources	= 2,
+	.resource	= ixp46x_i2c_resources
+};
+
+static struct platform_device *ixp46x_devices[] __initdata = {
+	&ixp46x_i2c_controller
+};
+
+void __init ixp4xx_sys_init(void)
+{
+	if (cpu_is_ixp46x()) {
+		platform_add_devices(ixp46x_devices,
+				ARRAY_SIZE(ixp46x_devices));
+	}
+}
+
diff --git a/arch/arm/mach-ixp4xx/coyote-pci.c b/arch/arm/mach-ixp4xx/coyote-pci.c
new file mode 100644
index 0000000..afafb42
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/coyote-pci.c
@@ -0,0 +1,70 @@
+/*
+ * arch/arch/mach-ixp4xx/coyote-pci.c
+ *
+ * PCI setup routines for ADI Engineering Coyote platform
+ *
+ * Copyright (C) 2002 Jungo Software Technologies.
+ * Copyright (C) 2003 MontaVista Softwrae, Inc.
+ *
+ * Maintainer: Deepak Saxena <dsaxena@mvista.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+
+#include <asm/mach/pci.h>
+
+extern void ixp4xx_pci_preinit(void);
+extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
+extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
+
+void __init coyote_pci_preinit(void)
+{
+	gpio_line_config(COYOTE_PCI_SLOT0_PIN,
+			IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+
+	gpio_line_config(COYOTE_PCI_SLOT1_PIN,
+			IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+
+	gpio_line_isr_clear(COYOTE_PCI_SLOT0_PIN);
+	gpio_line_isr_clear(COYOTE_PCI_SLOT1_PIN);
+
+	ixp4xx_pci_preinit();
+}
+
+static int __init coyote_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	if (slot == COYOTE_PCI_SLOT0_DEVID)
+		return IRQ_COYOTE_PCI_SLOT0;
+	else if (slot == COYOTE_PCI_SLOT1_DEVID)
+		return IRQ_COYOTE_PCI_SLOT1;
+	else return -1;
+}
+
+struct hw_pci coyote_pci __initdata = {
+	.nr_controllers = 1,
+	.preinit =        coyote_pci_preinit,
+	.swizzle =        pci_std_swizzle,
+	.setup =          ixp4xx_setup,
+	.scan =           ixp4xx_scan_bus,
+	.map_irq =        coyote_map_irq,
+};
+
+int __init coyote_pci_init(void)
+{
+	if (machine_is_adi_coyote())
+		pci_common_init(&coyote_pci);
+	return 0;
+}
+
+subsys_initcall(coyote_pci_init);
diff --git a/arch/arm/mach-ixp4xx/coyote-setup.c b/arch/arm/mach-ixp4xx/coyote-setup.c
new file mode 100644
index 0000000..8a05a12
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/coyote-setup.c
@@ -0,0 +1,130 @@
+/*
+ * arch/arm/mach-ixp4xx/coyote-setup.c
+ *
+ * Board setup for ADI Engineering and IXDGP425 boards
+ *
+ * Copyright (C) 2003-2005 MontaVista Software, Inc.
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+void __init coyote_map_io(void)
+{
+	ixp4xx_map_io();
+}
+
+static struct flash_platform_data coyote_flash_data = {
+	.map_name	= "cfi_probe",
+	.width		= 2,
+};
+
+static struct resource coyote_flash_resource = {
+	.start		= COYOTE_FLASH_BASE,
+	.end		= COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device coyote_flash = {
+	.name		= "IXP4XX-Flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &coyote_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &coyote_flash_resource,
+};
+
+static struct resource coyote_uart_resource = {
+	.start	= IXP4XX_UART2_BASE_PHYS,
+	.end	= IXP4XX_UART2_BASE_PHYS + 0x0fff,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct plat_serial8250_port coyote_uart_data = {
+	.mapbase	= IXP4XX_UART2_BASE_PHYS,
+	.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+	.irq		= IRQ_IXP4XX_UART2,
+	.flags		= UPF_BOOT_AUTOCONF,
+	.iotype		= UPIO_MEM,
+	.regshift	= 2,
+	.uartclk	= IXP4XX_UART_XTAL,
+};
+
+static struct platform_device coyote_uart = {
+	.name		= "serial8250",
+	.id		= 0,
+	.dev			= {
+		.platform_data	= &coyote_uart_data,
+	},
+	.num_resources	= 1,
+	.resource	= &coyote_uart_resource,
+};
+
+static struct platform_device *coyote_devices[] __initdata = {
+	&coyote_flash,
+	&coyote_uart
+};
+
+static void __init coyote_init(void)
+{
+	*IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
+	*IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
+
+	if (machine_is_ixdpg425()) {
+		coyote_uart_data.membase =
+			(char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
+		coyote_uart_data.mapbase = IXP4XX_UART1_BASE_PHYS;
+		coyote_uart_data.irq = IRQ_IXP4XX_UART1;
+	}
+
+
+	ixp4xx_sys_init();
+	platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
+}
+
+#ifdef CONFIG_ARCH_ADI_COYOTE
+MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
+        MAINTAINER("MontaVista Software, Inc.")
+        BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
+                IXP4XX_PERIPHERAL_BASE_VIRT)
+        MAPIO(coyote_map_io)
+        INITIRQ(ixp4xx_init_irq)
+	.timer		= &ixp4xx_timer,
+        BOOT_PARAMS(0x0100)
+	INIT_MACHINE(coyote_init)
+MACHINE_END
+#endif
+
+/*
+ * IXDPG425 is identical to Coyote except for which serial port
+ * is connected.
+ */
+#ifdef CONFIG_MACH_IXDPG425
+MACHINE_START(IXDPG425, "Intel IXDPG425")
+        MAINTAINER("MontaVista Software, Inc.")
+        BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
+                IXP4XX_PERIPHERAL_BASE_VIRT)
+        MAPIO(coyote_map_io)
+        INITIRQ(ixp4xx_init_irq)
+	.timer		= &ixp4xx_timer,
+        BOOT_PARAMS(0x0100)
+	INIT_MACHINE(coyote_init)
+MACHINE_END
+#endif
+
diff --git a/arch/arm/mach-ixp4xx/gtwx5715-pci.c b/arch/arm/mach-ixp4xx/gtwx5715-pci.c
new file mode 100644
index 0000000..b180358
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/gtwx5715-pci.c
@@ -0,0 +1,101 @@
+/*
+ * arch/arm/mach-ixp4xx/gtwx5715-pci.c
+ *
+ * Gemtek GTWX5715 (Linksys WRV54G) board setup
+ *
+ * Copyright (C) 2004 George T. Joseph
+ * Derived from Coyote
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ */
+
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/arch/gtwx5715.h>
+#include <asm/mach/pci.h>
+
+extern void ixp4xx_pci_preinit(void);
+extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
+extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
+
+        /*
+        * The exact GPIO pins and IRQs are defined in arch-ixp4xx/gtwx5715.h
+        * Slot 0 isn't actually populated with a card connector but
+        * we initialize it anyway in case a future version has the
+        * slot populated or someone with good soldering skills has
+        * some free time.
+        */
+
+
+static void gtwx5715_init_gpio(u8 pin, u32 style)
+{
+	gpio_line_config(pin, style | IXP4XX_GPIO_ACTIVE_LOW);
+
+	if (style & IXP4XX_GPIO_IN) gpio_line_isr_clear(pin);
+}
+
+void __init gtwx5715_pci_preinit(void)
+{
+	gtwx5715_init_gpio(GTWX5715_PCI_SLOT0_INTA_GPIO,	IXP4XX_GPIO_IN);
+	gtwx5715_init_gpio(GTWX5715_PCI_SLOT1_INTA_GPIO,	IXP4XX_GPIO_IN);
+
+	ixp4xx_pci_preinit();
+}
+
+
+static int __init gtwx5715_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	int rc;
+	static int gtwx5715_irqmap
+			[GTWX5715_PCI_SLOT_COUNT]
+			[GTWX5715_PCI_INT_PIN_COUNT] = {
+	{GTWX5715_PCI_SLOT0_INTA_IRQ, GTWX5715_PCI_SLOT0_INTB_IRQ},
+	{GTWX5715_PCI_SLOT1_INTA_IRQ, GTWX5715_PCI_SLOT1_INTB_IRQ},
+};
+
+	if (slot >= GTWX5715_PCI_SLOT_COUNT ||
+			pin >= GTWX5715_PCI_INT_PIN_COUNT) rc = -1;
+	else
+		rc = gtwx5715_irqmap[slot][pin-1];
+
+	printk("%s: Mapped slot %d pin %d to IRQ %d\n", __FUNCTION__,slot, pin, rc);
+	return(rc);
+}
+
+struct hw_pci gtwx5715_pci __initdata = {
+	.nr_controllers = 1,
+	.preinit =        gtwx5715_pci_preinit,
+	.swizzle =        pci_std_swizzle,
+	.setup =          ixp4xx_setup,
+	.scan =           ixp4xx_scan_bus,
+	.map_irq =        gtwx5715_map_irq,
+};
+
+int __init gtwx5715_pci_init(void)
+{
+	if (machine_is_gtwx5715())
+	{
+		pci_common_init(&gtwx5715_pci);
+	}
+
+	return 0;
+}
+
+subsys_initcall(gtwx5715_pci_init);
diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
new file mode 100644
index 0000000..e77c86e
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
@@ -0,0 +1,153 @@
+/*
+ * arch/arm/mach-ixp4xx/gtwx5715-setup.c
+ *
+ * Gemtek GTWX5715 (Linksys WRV54G) board settup
+ *
+ * Copyright (C) 2004 George T. Joseph
+ * Derived from Coyote
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/arch/gtwx5715.h>
+
+/*
+ * Xscale UART registers are 32 bits wide with only the least
+ * significant 8 bits having any meaning.  From a configuration
+ * perspective, this means 2 things...
+ *
+ *   Setting .regshift = 2 so that the standard 16550 registers
+ *   line up on every 4th byte.
+ *
+ *   Shifting the register start virtual address +3 bytes when
+ *   compiled big-endian.  Since register writes are done on a
+ *   single byte basis, if the shift isn't done the driver will
+ *   write the value into the most significant byte of the register,
+ *   which is ignored, instead of the least significant.
+ */
+
+#ifdef	__ARMEB__
+#define	REG_OFFSET	3
+#else
+#define	REG_OFFSET	0
+#endif
+
+/*
+ * Only the second or "console" uart is connected on the gtwx5715.
+ */
+
+static struct resource gtwx5715_uart_resources[] = {
+	{
+		.start	= IXP4XX_UART2_BASE_PHYS,
+		.end	= IXP4XX_UART2_BASE_PHYS + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_IXP4XX_UART2,
+		.end	= IRQ_IXP4XX_UART2,
+		.flags	= IORESOURCE_IRQ,
+	},
+	{ },
+};
+
+
+static struct plat_serial8250_port gtwx5715_uart_platform_data[] = {
+	{
+	.mapbase	= IXP4XX_UART2_BASE_PHYS,
+	.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+	.irq		= IRQ_IXP4XX_UART2,
+	.flags		= UPF_BOOT_AUTOCONF,
+	.iotype		= UPIO_MEM,
+	.regshift	= 2,
+	.uartclk	= IXP4XX_UART_XTAL,
+	},
+	{ },
+};
+
+static struct platform_device gtwx5715_uart_device = {
+	.name		= "serial8250",
+	.id		= 0,
+	.dev			= {
+		.platform_data	= gtwx5715_uart_platform_data,
+	},
+	.num_resources	= 2,
+	.resource	= gtwx5715_uart_resources,
+};
+
+
+void __init gtwx5715_map_io(void)
+{
+	ixp4xx_map_io();
+}
+
+static struct flash_platform_data gtwx5715_flash_data = {
+	.map_name	= "cfi_probe",
+	.width		= 2,
+};
+
+static struct resource gtwx5715_flash_resource = {
+	.start		= GTWX5715_FLASH_BASE,
+	.end		= GTWX5715_FLASH_BASE + GTWX5715_FLASH_SIZE,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device gtwx5715_flash = {
+	.name		= "IXP4XX-Flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &gtwx5715_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &gtwx5715_flash_resource,
+};
+
+static struct platform_device *gtwx5715_devices[] __initdata = {
+	&gtwx5715_uart_device,
+	&gtwx5715_flash,
+};
+
+static void __init gtwx5715_init(void)
+{
+	platform_add_devices(gtwx5715_devices, ARRAY_SIZE(gtwx5715_devices));
+}
+
+
+MACHINE_START(GTWX5715, "Gemtek GTWX5715 (Linksys WRV54G)")
+        MAINTAINER("George Joseph")
+        BOOT_MEM(PHYS_OFFSET, IXP4XX_UART2_BASE_PHYS,
+                IXP4XX_UART2_BASE_VIRT)
+        MAPIO(gtwx5715_map_io)
+        INITIRQ(ixp4xx_init_irq)
+		  .timer		= &ixp4xx_timer,
+        BOOT_PARAMS(0x0100)
+        INIT_MACHINE(gtwx5715_init)
+MACHINE_END
+
+
diff --git a/arch/arm/mach-ixp4xx/ixdp425-pci.c b/arch/arm/mach-ixp4xx/ixdp425-pci.c
new file mode 100644
index 0000000..c2ab9eb
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c
@@ -0,0 +1,84 @@
+/*
+ * arch/arm/mach-ixp4xx/ixdp425-pci.c 
+ *
+ * IXDP425 board-level PCI initialization
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/config.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/mach/pci.h>
+#include <asm/irq.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+
+void __init ixdp425_pci_preinit(void)
+{
+	gpio_line_config(IXDP425_PCI_INTA_PIN,
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(IXDP425_PCI_INTB_PIN, 
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(IXDP425_PCI_INTC_PIN, 
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(IXDP425_PCI_INTD_PIN, 
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+
+	gpio_line_isr_clear(IXDP425_PCI_INTA_PIN);
+	gpio_line_isr_clear(IXDP425_PCI_INTB_PIN);
+	gpio_line_isr_clear(IXDP425_PCI_INTC_PIN);
+	gpio_line_isr_clear(IXDP425_PCI_INTD_PIN);
+
+	ixp4xx_pci_preinit();
+}
+
+static int __init ixdp425_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static int pci_irq_table[IXDP425_PCI_IRQ_LINES] = {
+		IRQ_IXDP425_PCI_INTA,
+		IRQ_IXDP425_PCI_INTB,
+		IRQ_IXDP425_PCI_INTC,
+		IRQ_IXDP425_PCI_INTD
+	};
+
+	int irq = -1;
+
+	if (slot >= 1 && slot <= IXDP425_PCI_MAX_DEV && 
+		pin >= 1 && pin <= IXDP425_PCI_IRQ_LINES) {
+		irq = pci_irq_table[(slot + pin - 2) % 4];
+	}
+
+	return irq;
+}
+
+struct hw_pci ixdp425_pci __initdata = {
+	.nr_controllers = 1,
+	.preinit	= ixdp425_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= ixp4xx_setup,
+	.scan		= ixp4xx_scan_bus,
+	.map_irq	= ixdp425_map_irq,
+};
+
+int __init ixdp425_pci_init(void)
+{
+	if (machine_is_ixdp425() || machine_is_ixcdp1100() ||
+			machine_is_avila() || machine_is_ixdp465())
+		pci_common_init(&ixdp425_pci);
+	return 0;
+}
+
+subsys_initcall(ixdp425_pci_init);
+
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
new file mode 100644
index 0000000..77346c1
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -0,0 +1,181 @@
+/*
+ * arch/arm/mach-ixp4xx/ixdp425-setup.c
+ *
+ * IXDP425/IXCDP1100 board-setup 
+ *
+ * Copyright (C) 2003-2005 MontaVista Software, Inc.
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+void __init ixdp425_map_io(void) 
+{
+	ixp4xx_map_io();
+}
+
+static struct flash_platform_data ixdp425_flash_data = {
+	.map_name	= "cfi_probe",
+	.width		= 2,
+};
+
+static struct resource ixdp425_flash_resource = {
+	.start		= IXDP425_FLASH_BASE,
+	.end		= IXDP425_FLASH_BASE + IXDP425_FLASH_SIZE,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device ixdp425_flash = {
+	.name		= "IXP4XX-Flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &ixdp425_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &ixdp425_flash_resource,
+};
+
+static struct ixp4xx_i2c_pins ixdp425_i2c_gpio_pins = {
+	.sda_pin	= IXDP425_SDA_PIN,
+	.scl_pin	= IXDP425_SCL_PIN,
+};
+
+static struct platform_device ixdp425_i2c_controller = {
+	.name		= "IXP4XX-I2C",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &ixdp425_i2c_gpio_pins,
+	},
+	.num_resources	= 0
+};
+
+static struct resource ixdp425_uart_resources[] = {
+	{
+		.start		= IXP4XX_UART1_BASE_PHYS,
+		.end		= IXP4XX_UART1_BASE_PHYS + 0x0fff,
+		.flags		= IORESOURCE_MEM
+	},
+	{
+		.start		= IXP4XX_UART2_BASE_PHYS,
+		.end		= IXP4XX_UART2_BASE_PHYS + 0x0fff,
+		.flags		= IORESOURCE_MEM
+	}
+};
+
+static struct plat_serial8250_port ixdp425_uart_data[] = {
+	{
+		.mapbase	= IXP4XX_UART1_BASE_PHYS,
+		.membase	= (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
+		.irq		= IRQ_IXP4XX_UART1,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= IXP4XX_UART_XTAL,
+	},
+	{
+		.mapbase	= IXP4XX_UART2_BASE_PHYS,
+		.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+		.irq		= IRQ_IXP4XX_UART1,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= IXP4XX_UART_XTAL,
+	}
+};
+
+static struct platform_device ixdp425_uart = {
+	.name			= "serial8250",
+	.id			= 0,
+	.dev.platform_data	= ixdp425_uart_data,
+	.num_resources		= 2,
+	.resource		= ixdp425_uart_resources
+};
+
+static struct platform_device *ixdp425_devices[] __initdata = {
+	&ixdp425_i2c_controller,
+	&ixdp425_flash,
+	&ixdp425_uart
+};
+
+
+static void __init ixdp425_init(void)
+{
+	ixp4xx_sys_init();
+
+	/*
+	 * IXP465 has 32MB window
+	 */
+	if (machine_is_ixdp465()) {
+		ixdp425_flash_resource.end += IXDP425_FLASH_SIZE;
+	}
+
+	platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
+}
+
+MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
+	MAINTAINER("MontaVista Software, Inc.")
+	BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
+		IXP4XX_PERIPHERAL_BASE_VIRT)
+	MAPIO(ixdp425_map_io)
+	INITIRQ(ixp4xx_init_irq)
+	.timer		= &ixp4xx_timer,
+	BOOT_PARAMS(0x0100)
+	INIT_MACHINE(ixdp425_init)
+MACHINE_END
+
+MACHINE_START(IXDP465, "Intel IXDP465 Development Platform")
+	MAINTAINER("MontaVista Software, Inc.")
+	BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
+		IXP4XX_PERIPHERAL_BASE_VIRT)
+	MAPIO(ixdp425_map_io)
+	INITIRQ(ixp4xx_init_irq)
+	.timer		= &ixp4xx_timer,
+	BOOT_PARAMS(0x0100)
+	INIT_MACHINE(ixdp425_init)
+MACHINE_END
+
+MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
+	MAINTAINER("MontaVista Software, Inc.")
+	BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
+		IXP4XX_PERIPHERAL_BASE_VIRT)
+	MAPIO(ixdp425_map_io)
+	INITIRQ(ixp4xx_init_irq)
+	.timer		= &ixp4xx_timer,
+	BOOT_PARAMS(0x0100)
+	INIT_MACHINE(ixdp425_init)
+MACHINE_END
+
+/*
+ * Avila is functionally equivalent to IXDP425 except that it adds
+ * a CF IDE slot hanging off the expansion bus. When we have a 
+ * driver for IXP4xx CF IDE with driver model support we'll move
+ * Avila to it's own setup file.
+ */
+#ifdef CONFIG_ARCH_AVILA
+MACHINE_START(AVILA, "Gateworks Avila Network Platform")
+	MAINTAINER("Deepak Saxena <dsaxena@plexity.net>")
+	BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
+		IXP4XX_PERIPHERAL_BASE_VIRT)
+	MAPIO(ixdp425_map_io)
+	INITIRQ(ixp4xx_init_irq)
+	.timer		= &ixp4xx_timer,
+	BOOT_PARAMS(0x0100)
+	INIT_MACHINE(ixdp425_init)
+MACHINE_END
+#endif
+
diff --git a/arch/arm/mach-ixp4xx/ixdpg425-pci.c b/arch/arm/mach-ixp4xx/ixdpg425-pci.c
new file mode 100644
index 0000000..ce4563f
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/ixdpg425-pci.c
@@ -0,0 +1,66 @@
+/*
+ * arch/arch/mach-ixp4xx/ixdpg425-pci.c
+ *
+ * PCI setup routines for Intel IXDPG425 Platform
+ *
+ * Copyright (C) 2004 MontaVista Softwrae, Inc.
+ *
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+
+#include <asm/mach/pci.h>
+
+extern void ixp4xx_pci_preinit(void);
+extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
+extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys);
+
+void __init ixdpg425_pci_preinit(void)
+{
+	gpio_line_config(6, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(7, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+
+	gpio_line_isr_clear(6);
+	gpio_line_isr_clear(7);
+
+	ixp4xx_pci_preinit();
+}
+
+static int __init ixdpg425_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	if (slot == 12 || slot == 13)
+		return IRQ_IXP4XX_GPIO7;
+	else if (slot == 14)
+		return IRQ_IXP4XX_GPIO6;
+	else return -1;
+}
+
+struct hw_pci ixdpg425_pci __initdata = {
+	.nr_controllers = 1,
+	.preinit =        ixdpg425_pci_preinit,
+	.swizzle =        pci_std_swizzle,
+	.setup =          ixp4xx_setup,
+	.scan =           ixp4xx_scan_bus,
+	.map_irq =        ixdpg425_map_irq,
+};
+
+int __init ixdpg425_pci_init(void)
+{
+	if (machine_is_ixdpg425())
+		pci_common_init(&ixdpg425_pci);
+	return 0;
+}
+
+subsys_initcall(ixdpg425_pci_init);