[ARM] 3388/1: ixp23xx: add core ixp23xx support

Patch from Lennert Buytenhek

This patch adds support for the Intel ixp23xx series of CPUs.  The
ixp23xx is an XSC3 based CPU with 512K of L2 cache, a 64bit 66MHz PCI
interface, two DDR RAM interfaces, QDR RAM interfaces, two gigabit
MACs, two 10/100 MACs, expansion bus, four microengines, a Media and
Switch Fabric unit almost identical to the one on the ixp2400, two
xscale (8250ish) UARTs and a bunch of other stuff.

This patch adds the core ixp23xx support code, and support for the
ADI Engineering Roadrunner, Intel IXDP2351, and IP Fabrics Double
Espresso platforms.
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/Kconfig

@@ -148,6 +148,12 @@ config ARCH_IXP2000
 	help
 	  Support for Intel's IXP2400/2800 (XScale) family of processors.
 
+config ARCH_IXP23XX
+ 	bool "IXP23XX-based"
+ 	select PCI
+	help
+	  Support for Intel's IXP23xx (XScale) family of processors.
+
 config ARCH_L7200
 	bool "LinkUp-L7200"
 	select FIQ
@@ -269,6 +275,8 @@ source "arch/arm/mach-ixp4xx/Kconfig"
 
 source "arch/arm/mach-ixp2000/Kconfig"
 
+source "arch/arm/mach-ixp23xx/Kconfig"
+
 source "arch/arm/mach-pxa/Kconfig"
 
 source "arch/arm/mach-sa1100/Kconfig"
@@ -787,7 +795,8 @@ source "drivers/acorn/block/Kconfig"
 
 if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \
 	|| ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
-	|| ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
+	|| ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
+	|| ARCH_IXP23XX
 source "drivers/ide/Kconfig"
 endif
 

arch/arm/Makefile

@@ -98,6 +98,7 @@ endif
  machine-$(CONFIG_ARCH_IOP3XX)	   := iop3xx
  machine-$(CONFIG_ARCH_IXP4XX)	   := ixp4xx
  machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
+ machine-$(CONFIG_ARCH_IXP23XX)    := ixp23xx
  machine-$(CONFIG_ARCH_OMAP1)	   := omap1
  machine-$(CONFIG_ARCH_OMAP2)	   := omap2
   incdir-$(CONFIG_ARCH_OMAP)	   := omap

arch/arm/mach-ixp23xx/Kconfig

+if ARCH_IXP23XX
+
+config ARCH_SUPPORTS_BIG_ENDIAN
+	bool
+	default y
+
+menu "Intel IXP23xx Implementation Options"
+
+comment "IXP23xx Platforms"
+
+config MACH_ESPRESSO
+	bool "Support IP Fabrics Double Espresso platform"
+	help
+
+config MACH_IXDP2351
+	bool "Support Intel IXDP2351 platform"
+	help
+
+config MACH_ROADRUNNER
+	bool "Support ADI RoadRunner platform"
+	help
+
+endmenu
+
+endif

arch/arm/mach-ixp23xx/Makefile

+#
+# Makefile for the linux kernel.
+#
+obj-y			:= core.o pci.o
+obj-m			:=
+obj-n			:=
+obj-			:=
+
+obj-$(CONFIG_MACH_ESPRESSO)	+= espresso.o
+obj-$(CONFIG_MACH_IXDP2351)	+= ixdp2351.o
+obj-$(CONFIG_MACH_ROADRUNNER)	+= roadrunner.o

arch/arm/mach-ixp23xx/Makefile.boot

+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100

arch/arm/mach-ixp23xx/core.c

+/*
+ * arch/arm/mach-ixp23xx/core.c
+ *
+ * Core routines for IXP23xx chips
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * Based on 2.4 code Copyright 2004 (c) Intel Corporation
+ *
+ * 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/init.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/bitops.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_core.h>
+#include <linux/device.h>
+#include <linux/mm.h>
+#include <linux/time.h>
+#include <linux/timex.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/system.h>
+#include <asm/tlbflush.h>
+#include <asm/pgtable.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/arch.h>
+
+
+/*************************************************************************
+ * Chip specific mappings shared by all IXP23xx systems
+ *************************************************************************/
+static struct map_desc ixp23xx_io_desc[] __initdata = {
+	{ /* XSI-CPP CSRs */
+	 	.virtual	= IXP23XX_XSI2CPP_CSR_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_XSI2CPP_CSR_PHYS),
+	 	.length		= IXP23XX_XSI2CPP_CSR_SIZE,
+		.type		= MT_DEVICE,
+	}, { /* Expansion Bus Config */
+	 	.virtual	= IXP23XX_EXP_CFG_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_EXP_CFG_PHYS),
+	 	.length		= IXP23XX_EXP_CFG_SIZE,
+		.type		= MT_DEVICE,
+	}, { /* UART, Interrupt ctrl, GPIO, timers, NPEs, MACS,.... */
+	 	.virtual	= IXP23XX_PERIPHERAL_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_PERIPHERAL_PHYS),
+	 	.length		= IXP23XX_PERIPHERAL_SIZE,
+		.type		= MT_DEVICE,
+	}, { /* CAP CSRs */
+	 	.virtual	= IXP23XX_CAP_CSR_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_CAP_CSR_PHYS),
+	 	.length		= IXP23XX_CAP_CSR_SIZE,
+		.type		= MT_DEVICE,
+	}, { /* MSF CSRs */
+	 	.virtual	= IXP23XX_MSF_CSR_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_MSF_CSR_PHYS),
+	 	.length		= IXP23XX_MSF_CSR_SIZE,
+		.type		= MT_DEVICE,
+	}, { /* PCI I/O Space */
+	 	.virtual	= IXP23XX_PCI_IO_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_PCI_IO_PHYS),
+	 	.length		= IXP23XX_PCI_IO_SIZE,
+		.type		= MT_DEVICE,
+	}, { /* PCI Config Space */
+	 	.virtual	= IXP23XX_PCI_CFG_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_PCI_CFG_PHYS),
+	 	.length		= IXP23XX_PCI_CFG_SIZE,
+		.type		= MT_DEVICE,
+	}, { /* PCI local CFG CSRs */
+	 	.virtual	= IXP23XX_PCI_CREG_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_PCI_CREG_PHYS),
+	 	.length		= IXP23XX_PCI_CREG_SIZE,
+		.type		= MT_DEVICE,
+	}, { /* PCI MEM Space */
+	 	.virtual	= IXP23XX_PCI_MEM_VIRT,
+	 	.pfn		= __phys_to_pfn(IXP23XX_PCI_MEM_PHYS),
+	 	.length		= IXP23XX_PCI_MEM_SIZE,
+		.type		= MT_DEVICE,
+	}
+};
+
+void __init ixp23xx_map_io(void)
+{
+	iotable_init(ixp23xx_io_desc, ARRAY_SIZE(ixp23xx_io_desc));
+}
+
+
+/***************************************************************************
+ * IXP23xx Interrupt Handling
+ ***************************************************************************/
+enum ixp23xx_irq_type {
+	IXP23XX_IRQ_LEVEL, IXP23XX_IRQ_EDGE
+};
+
+static void ixp23xx_config_irq(unsigned int, enum ixp23xx_irq_type);
+
+static int ixp23xx_irq_set_type(unsigned int irq, unsigned int type)
+{
+	int line = irq - IRQ_IXP23XX_GPIO6 + 6;
+	u32 int_style;
+	enum ixp23xx_irq_type irq_type;
+	volatile u32 *int_reg;
+
+	/*
+	 * Only GPIOs 6-15 are wired to interrupts on IXP23xx
+	 */
+	if (line < 6 || line > 15)
+		return -EINVAL;
+
+	switch (type) {
+	case IRQT_BOTHEDGE:
+		int_style = IXP23XX_GPIO_STYLE_TRANSITIONAL;
+		irq_type = IXP23XX_IRQ_EDGE;
+		break;
+	case IRQT_RISING:
+		int_style = IXP23XX_GPIO_STYLE_RISING_EDGE;
+		irq_type = IXP23XX_IRQ_EDGE;
+		break;
+	case IRQT_FALLING:
+		int_style = IXP23XX_GPIO_STYLE_FALLING_EDGE;
+		irq_type = IXP23XX_IRQ_EDGE;
+		break;
+	case IRQT_HIGH:
+		int_style = IXP23XX_GPIO_STYLE_ACTIVE_HIGH;
+		irq_type = IXP23XX_IRQ_LEVEL;
+		break;
+	case IRQT_LOW:
+		int_style = IXP23XX_GPIO_STYLE_ACTIVE_LOW;
+		irq_type = IXP23XX_IRQ_LEVEL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ixp23xx_config_irq(irq, irq_type);
+
+	if (line >= 8) {	/* pins 8-15 */
+		line -= 8;
+		int_reg = (volatile u32 *)IXP23XX_GPIO_GPIT2R;
+	} else {		/* pins 0-7 */
+		int_reg = (volatile u32 *)IXP23XX_GPIO_GPIT1R;
+	}
+
+	/*
+	 * Clear pending interrupts
+	 */
+	*IXP23XX_GPIO_GPISR = (1 << line);
+
+	/* Clear the style for the appropriate pin */
+	*int_reg &= ~(IXP23XX_GPIO_STYLE_MASK <<
+			(line * IXP23XX_GPIO_STYLE_SIZE));
+
+	/* Set the new style */
+	*int_reg |= (int_style << (line * IXP23XX_GPIO_STYLE_SIZE));
+
+	return 0;
+}
+
+static void ixp23xx_irq_mask(unsigned int irq)
+{
+	volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32);
+
+	*intr_reg &= ~(1 << (irq % 32));
+}
+
+static void ixp23xx_irq_ack(unsigned int irq)
+{
+	int line = irq - IRQ_IXP23XX_GPIO6 + 6;
+
+	if ((line < 6) || (line > 15))
+		return;
+
+	*IXP23XX_GPIO_GPISR = (1 << line);
+}
+
+/*
+ * Level triggered interrupts on GPIO lines can only be cleared when the
+ * interrupt condition disappears.
+ */
+static void ixp23xx_irq_level_unmask(unsigned int irq)
+{
+	volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32);
+
+	ixp23xx_irq_ack(irq);
+
+	*intr_reg |= (1 << (irq % 32));
+}
+
+static void ixp23xx_irq_edge_unmask(unsigned int irq)
+{
+	volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32);
+
+	*intr_reg |= (1 << (irq % 32));
+}
+
+static struct irqchip ixp23xx_irq_level_chip = {
+	.ack		= ixp23xx_irq_mask,
+	.mask		= ixp23xx_irq_mask,
+	.unmask		= ixp23xx_irq_level_unmask,
+	.set_type	= ixp23xx_irq_set_type
+};
+
+static struct irqchip ixp23xx_irq_edge_chip = {
+	.ack		= ixp23xx_irq_ack,
+	.mask		= ixp23xx_irq_mask,
+	.unmask		= ixp23xx_irq_edge_unmask,
+	.set_type	= ixp23xx_irq_set_type
+};
+
+static void ixp23xx_pci_irq_mask(unsigned int irq)
+{
+	*IXP23XX_PCI_XSCALE_INT_ENABLE &= ~(1 << (IRQ_IXP23XX_INTA + 27 - irq));
+}
+
+static void ixp23xx_pci_irq_unmask(unsigned int irq)
+{
+	*IXP23XX_PCI_XSCALE_INT_ENABLE |= (1 << (IRQ_IXP23XX_INTA + 27 - irq));
+}
+
+/*
+ * TODO: Should this just be done at ASM level?
+ */
+static void pci_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
+{
+	u32 pci_interrupt;
+	unsigned int irqno;
+	struct irqdesc *int_desc;
+
+	pci_interrupt = *IXP23XX_PCI_XSCALE_INT_STATUS;
+
+	desc->chip->ack(irq);
+
+	/* See which PCI_INTA, or PCI_INTB interrupted */
+	if (pci_interrupt & (1 << 26)) {
+		irqno = IRQ_IXP23XX_INTB;
+	} else if (pci_interrupt & (1 << 27)) {
+		irqno = IRQ_IXP23XX_INTA;
+	} else {
+		BUG();
+	}
+
+	int_desc = irq_desc + irqno;
+	int_desc->handle(irqno, int_desc, regs);
+
+	desc->chip->unmask(irq);
+}
+
+static struct irqchip ixp23xx_pci_irq_chip = {
+	.ack	= ixp23xx_pci_irq_mask,
+	.mask	= ixp23xx_pci_irq_mask,
+	.unmask	= ixp23xx_pci_irq_unmask
+};
+
+static void ixp23xx_config_irq(unsigned int irq, enum ixp23xx_irq_type type)
+{
+	switch (type) {
+	case IXP23XX_IRQ_LEVEL:
+		set_irq_chip(irq, &ixp23xx_irq_level_chip);
+		set_irq_handler(irq, do_level_IRQ);
+		break;
+	case IXP23XX_IRQ_EDGE:
+		set_irq_chip(irq, &ixp23xx_irq_edge_chip);
+		set_irq_handler(irq, do_edge_IRQ);
+		break;
+	}
+	set_irq_flags(irq, IRQF_VALID);
+}
+
+void __init ixp23xx_init_irq(void)
+{
+	int irq;
+
+	/* Route everything to IRQ */
+	*IXP23XX_INTR_SEL1 = 0x0;
+	*IXP23XX_INTR_SEL2 = 0x0;
+	*IXP23XX_INTR_SEL3 = 0x0;
+	*IXP23XX_INTR_SEL4 = 0x0;
+
+	/* Mask all sources */
+	*IXP23XX_INTR_EN1 = 0x0;
+	*IXP23XX_INTR_EN2 = 0x0;
+	*IXP23XX_INTR_EN3 = 0x0;
+	*IXP23XX_INTR_EN4 = 0x0;
+
+	/*
+	 * Configure all IRQs for level-sensitive operation
+	 */
+	for (irq = 0; irq <= NUM_IXP23XX_RAW_IRQS; irq++) {
+		ixp23xx_config_irq(irq, IXP23XX_IRQ_LEVEL);
+	}
+
+	for (irq = IRQ_IXP23XX_INTA; irq <= IRQ_IXP23XX_INTB; irq++) {
+		set_irq_chip(irq, &ixp23xx_pci_irq_chip);
+		set_irq_handler(irq, do_level_IRQ);
+		set_irq_flags(irq, IRQF_VALID);
+	}
+
+	set_irq_chained_handler(IRQ_IXP23XX_PCI_INT_RPH, pci_handler);
+}
+
+
+/*************************************************************************
+ * Timer-tick functions for IXP23xx
+ *************************************************************************/
+#define CLOCK_TICKS_PER_USEC	CLOCK_TICK_RATE / (USEC_PER_SEC)
+
+static unsigned long next_jiffy_time;
+
+static unsigned long
+ixp23xx_gettimeoffset(void)
+{
+	unsigned long elapsed;
+
+	elapsed = *IXP23XX_TIMER_CONT - (next_jiffy_time - LATCH);
+
+	return elapsed / CLOCK_TICKS_PER_USEC;
+}
+
+static irqreturn_t
+ixp23xx_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	/* Clear Pending Interrupt by writing '1' to it */
+	*IXP23XX_TIMER_STATUS = IXP23XX_TIMER1_INT_PEND;
+	while ((*IXP23XX_TIMER_CONT - next_jiffy_time) > LATCH) {
+		timer_tick(regs);
+		next_jiffy_time += LATCH;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction ixp23xx_timer_irq = {
+	.name		= "IXP23xx Timer Tick",
+	.handler	= ixp23xx_timer_interrupt,
+	.flags		= SA_INTERRUPT | SA_TIMER,
+};
+
+void __init ixp23xx_init_timer(void)
+{
+	/* Clear Pending Interrupt by writing '1' to it */
+	*IXP23XX_TIMER_STATUS = IXP23XX_TIMER1_INT_PEND;
+
+	/* Setup the Timer counter value */
+	*IXP23XX_TIMER1_RELOAD =
+		(LATCH & ~IXP23XX_TIMER_RELOAD_MASK) | IXP23XX_TIMER_ENABLE;
+
+	*IXP23XX_TIMER_CONT = 0;
+	next_jiffy_time = LATCH;
+
+	/* Connect the interrupt handler and enable the interrupt */
+	setup_irq(IRQ_IXP23XX_TIMER1, &ixp23xx_timer_irq);
+}
+
+struct sys_timer ixp23xx_timer = {
+	.init		= ixp23xx_init_timer,
+	.offset		= ixp23xx_gettimeoffset,
+};
+
+
+/*************************************************************************
+ * IXP23xx Platform Initializaion
+ *************************************************************************/
+static struct resource ixp23xx_uart_resources[] = {
+	{
+		.start		= IXP23XX_UART1_PHYS,
+		.end		= IXP23XX_UART1_PHYS + 0x0fff,
+		.flags		= IORESOURCE_MEM
+	}, {
+		.start		= IXP23XX_UART2_PHYS,
+		.end		= IXP23XX_UART2_PHYS + 0x0fff,
+		.flags		= IORESOURCE_MEM
+	}
+};
+
+static struct plat_serial8250_port ixp23xx_uart_data[] = {
+	{
+		.mapbase	= IXP23XX_UART1_PHYS,
+		.membase	= (char *)(IXP23XX_UART1_VIRT + 3),
+		.irq		= IRQ_IXP23XX_UART1,
+		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= IXP23XX_UART_XTAL,
+	}, {
+		.mapbase	= IXP23XX_UART2_PHYS,
+		.membase	= (char *)(IXP23XX_UART2_VIRT + 3),
+		.irq		= IRQ_IXP23XX_UART2,
+		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= IXP23XX_UART_XTAL,
+	},
+	{ },
+};
+
+static struct platform_device ixp23xx_uart = {
+	.name			= "serial8250",
+	.id			= 0,
+	.dev.platform_data	= ixp23xx_uart_data,
+	.num_resources		= 2,
+	.resource		= ixp23xx_uart_resources,
+};
+
+static struct platform_device *ixp23xx_devices[] __initdata = {
+	&ixp23xx_uart,
+};
+
+void __init ixp23xx_sys_init(void)
+{
+	platform_add_devices(ixp23xx_devices, ARRAY_SIZE(ixp23xx_devices));
+}

arch/arm/mach-ixp23xx/espresso.c

+/*
+ * arch/arm/mach-ixp23xx/espresso.c
+ *
+ * Double Espresso-specific routines
+ *
+ * Author: Lennert Buytenhek <buytenh@wantstofly.org>
+ *
+ * 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/init.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/bitops.h>
+#include <linux/ioport.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_core.h>
+#include <linux/device.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/mtd/physmap.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/system.h>
+#include <asm/tlbflush.h>
+#include <asm/pgtable.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/pci.h>
+
+static void __init espresso_init(void)
+{
+	physmap_configure(0x90000000, 0x02000000, 2, NULL);
+
+	/*
+	 * Mark flash as writeable.
+	 */
+	IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE;
+	IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE;
+
+	ixp23xx_sys_init();
+}
+
+MACHINE_START(ESPRESSO, "IP Fabrics Double Espresso")
+	/* Maintainer: Lennert Buytenhek */
+	.phys_io	= IXP23XX_PERIPHERAL_PHYS,
+	.io_pg_offst	= ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc,
+	.map_io		= ixp23xx_map_io,
+	.init_irq	= ixp23xx_init_irq,
+	.timer		= &ixp23xx_timer,
+	.boot_params	= 0x00000100,
+	.init_machine	= espresso_init,
+MACHINE_END

arch/arm/mach-ixp23xx/ixdp2351.c

+/*
+ * arch/arm/mach-ixp23xx/ixdp2351.c
+ *
+ * IXDP2351 board-specific routines
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * Based on 2.4 code Copyright 2004 (c) Intel Corporation
+ *
+ * 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/init.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/bitops.h>
+#include <linux/ioport.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_core.h>
+#include <linux/device.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/mtd/physmap.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/system.h>
+#include <asm/tlbflush.h>
+#include <asm/pgtable.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/pci.h>
+
+/*
+ * IXDP2351 Interrupt Handling
+ */
+static void ixdp2351_inta_mask(unsigned int irq)
+{
+	*IXDP2351_CPLD_INTA_MASK_SET_REG = IXDP2351_INTA_IRQ_MASK(irq);
+}
+
+static void ixdp2351_inta_unmask(unsigned int irq)
+{
+	*IXDP2351_CPLD_INTA_MASK_CLR_REG = IXDP2351_INTA_IRQ_MASK(irq);
+}
+
+static void ixdp2351_inta_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
+{
+	u16 ex_interrupt =
+		*IXDP2351_CPLD_INTA_STAT_REG & IXDP2351_INTA_IRQ_VALID;
+	int i;
+
+	desc->chip->mask(irq);
+
+	for (i = 0; i < IXDP2351_INTA_IRQ_NUM; i++) {
+		if (ex_interrupt & (1 << i)) {
+			struct irqdesc *cpld_desc;
+			int cpld_irq =
+				IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE + i);
+			cpld_desc = irq_desc + cpld_irq;
+			cpld_desc->handle(cpld_irq, cpld_desc, regs);
+		}
+	}
+
+	desc->chip->unmask(irq);
+}
+
+static struct irqchip ixdp2351_inta_chip = {
+	.ack	= ixdp2351_inta_mask,
+	.mask	= ixdp2351_inta_mask,
+	.unmask	= ixdp2351_inta_unmask
+};
+
+static void ixdp2351_intb_mask(unsigned int irq)
+{
+	*IXDP2351_CPLD_INTB_MASK_SET_REG = IXDP2351_INTB_IRQ_MASK(irq);
+}
+
+static void ixdp2351_intb_unmask(unsigned int irq)
+{
+	*IXDP2351_CPLD_INTB_MASK_CLR_REG = IXDP2351_INTB_IRQ_MASK(irq);
+}
+
+static void ixdp2351_intb_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
+{
+	u16 ex_interrupt =
+		*IXDP2351_CPLD_INTB_STAT_REG & IXDP2351_INTB_IRQ_VALID;
+	int i;
+
+	desc->chip->ack(irq);
+
+	for (i = 0; i < IXDP2351_INTB_IRQ_NUM; i++) {
+		if (ex_interrupt & (1 << i)) {
+			struct irqdesc *cpld_desc;
+			int cpld_irq =
+				IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE + i);
+			cpld_desc = irq_desc + cpld_irq;
+			cpld_desc->handle(cpld_irq, cpld_desc, regs);
+		}
+	}
+
+	desc->chip->unmask(irq);
+}
+
+static struct irqchip ixdp2351_intb_chip = {
+	.ack	= ixdp2351_intb_mask,
+	.mask	= ixdp2351_intb_mask,
+	.unmask	= ixdp2351_intb_unmask
+};
+
+void ixdp2351_init_irq(void)
+{
+	int irq;
+
+	/* Mask all interrupts from CPLD, disable simulation */
+	*IXDP2351_CPLD_INTA_MASK_SET_REG = (u16) -1;
+	*IXDP2351_CPLD_INTB_MASK_SET_REG = (u16) -1;
+	*IXDP2351_CPLD_INTA_SIM_REG = 0;
+	*IXDP2351_CPLD_INTB_SIM_REG = 0;
+
+	ixp23xx_init_irq();
+
+	for (irq = IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE);
+	     irq <
+	     IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE + IXDP2351_INTA_IRQ_NUM);
+	     irq++) {
+		if (IXDP2351_INTA_IRQ_MASK(irq) & IXDP2351_INTA_IRQ_VALID) {
+			set_irq_flags(irq, IRQF_VALID);
+			set_irq_handler(irq, do_level_IRQ);
+			set_irq_chip(irq, &ixdp2351_inta_chip);
+		}
+	}
+
+	for (irq = IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE);
+	     irq <
+	     IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE + IXDP2351_INTB_IRQ_NUM);
+	     irq++) {
+		if (IXDP2351_INTB_IRQ_MASK(irq) & IXDP2351_INTB_IRQ_VALID) {
+			set_irq_flags(irq, IRQF_VALID);
+			set_irq_handler(irq, do_level_IRQ);
+			set_irq_chip(irq, &ixdp2351_intb_chip);
+		}
+	}
+
+	set_irq_chained_handler(IRQ_IXP23XX_INTA, &ixdp2351_inta_handler);
+	set_irq_chained_handler(IRQ_IXP23XX_INTB, &ixdp2351_intb_handler);
+}
+
+/*
+ * IXDP2351 PCI
+ */
+
+/*
+ * This board does not do normal PCI IRQ routing, or any
+ * sort of swizzling, so we just need to check where on the
+ * bus the device is and figure out what CPLD pin it is
+ * being routed to.
+ */
+#define DEVPIN(dev, pin) ((pin) | ((dev) << 3))
+
+static int __init ixdp2351_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	u8 bus = dev->bus->number;
+	u32 devpin = DEVPIN(PCI_SLOT(dev->devfn), pin);
+	struct pci_bus *tmp_bus = dev->bus;
+
+	/* Primary bus, no interrupts here */
+	if (!bus)
+		return -1;
+
+	/* Lookup first leaf in bus tree */
+	while ((tmp_bus->parent != NULL) && (tmp_bus->parent->parent != NULL))
+		tmp_bus = tmp_bus->parent;
+
+	/* Select between known bridges */
+	switch (tmp_bus->self->devfn | (tmp_bus->self->bus->number << 8)) {
+		/* Device is located after first bridge */
+	case 0x0008:
+		if (tmp_bus == dev->bus) {
+			/* Device is located directy after first bridge */
+			switch (devpin) {
+				/* Onboard 82546 */
+			case DEVPIN(1, 1):	/* Onboard 82546 ch 0 */
+				return IRQ_IXDP2351_INTA_82546;
+			case DEVPIN(1, 2):	/* Onboard 82546 ch 1 */
+				return IRQ_IXDP2351_INTB_82546;
+				/* PMC SLOT */
+			case DEVPIN(0, 1):	/* PMCP INTA# */
+			case DEVPIN(2, 4):	/* PMCS INTD# */
+				return IRQ_IXDP2351_SPCI_PMC_INTA;
+			case DEVPIN(0, 2):	/* PMCP INTB# */
+			case DEVPIN(2, 1):	/* PMCS INTA# */
+				return IRQ_IXDP2351_SPCI_PMC_INTB;
+			case DEVPIN(0, 3):	/* PMCP INTC# */
+			case DEVPIN(2, 2):	/* PMCS INTB# */
+				return IRQ_IXDP2351_SPCI_PMC_INTC;
+			case DEVPIN(0, 4):	/* PMCP INTD# */
+			case DEVPIN(2, 3):	/* PMCS INTC# */
+				return IRQ_IXDP2351_SPCI_PMC_INTD;
+			}
+		} else {
+			/* Device is located indirectly after first bridge */
+			/* Not supported now */
+			return -1;
+		}
+		break;
+	case 0x0010:
+		if (tmp_bus == dev->bus) {
+			/* Device is located directy after second bridge */
+			/* Secondary bus of second bridge */
+			switch (devpin) {
+			case DEVPIN(0, 1):	/* DB#0 */
+			case DEVPIN(0, 2):
+			case DEVPIN(0, 3):
+			case DEVPIN(0, 4):
+				return IRQ_IXDP2351_SPCI_DB_0;
+			case DEVPIN(1, 1):	/* DB#1 */
+			case DEVPIN(1, 2):
+			case DEVPIN(1, 3):
+			case DEVPIN(1, 4):
+				return IRQ_IXDP2351_SPCI_DB_1;
+			case DEVPIN(2, 1):	/* FIC1 */
+			case DEVPIN(2, 2):
+			case DEVPIN(2, 3):
+			case DEVPIN(2, 4):
+			case DEVPIN(3, 1):	/* FIC2 */
+			case DEVPIN(3, 2):
+			case DEVPIN(3, 3):
+			case DEVPIN(3, 4):
+				return IRQ_IXDP2351_SPCI_FIC;
+			}
+		} else {
+			/* Device is located indirectly after second bridge */
+			/* Not supported now */
+			return -1;
+		}
+		break;
+	}
+
+	return -1;
+}
+
+struct hw_pci ixdp2351_pci __initdata = {
+	.nr_controllers	= 1,
+	.preinit	= ixp23xx_pci_preinit,
+	.setup		= ixp23xx_pci_setup,
+	.scan		= ixp23xx_pci_scan_bus,
+	.map_irq	= ixdp2351_map_irq,
+};
+
+int __init ixdp2351_pci_init(void)
+{
+	if (machine_is_ixdp2351())
+		pci_common_init(&ixdp2351_pci);
+
+	return 0;
+}
+
+subsys_initcall(ixdp2351_pci_init);
+
+/*
+ * IXDP2351 Static Mapped I/O
+ */
+static struct map_desc ixdp2351_io_desc[] __initdata = {
+	{
+		.virtual	= IXDP2351_NP_VIRT_BASE,
+		.pfn		= __phys_to_pfn((u64)IXDP2351_NP_PHYS_BASE),
+		.length		= IXDP2351_NP_PHYS_SIZE,
+		.type		= MT_DEVICE
+	}, {
+		.virtual	= IXDP2351_BB_BASE_VIRT,
+		.pfn		= __phys_to_pfn((u64)IXDP2351_BB_BASE_PHYS),
+		.length		= IXDP2351_BB_SIZE,
+		.type		= MT_DEVICE
+	}
+};
+
+static void __init ixdp2351_map_io(void)
+{
+	ixp23xx_map_io();
+	iotable_init(ixdp2351_io_desc, ARRAY_SIZE(ixdp2351_io_desc));
+}
+
+static void __init ixdp2351_init(void)
+{
+	physmap_configure(0x90000000, 0x04000000, 1, NULL);
+
+	/*
+	 * Mark flash as writeable
+	 */
+	IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE;
+	IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE;
+	IXP23XX_EXP_CS0[2] |= IXP23XX_FLASH_WRITABLE;
+	IXP23XX_EXP_CS0[3] |= IXP23XX_FLASH_WRITABLE;
+
+	ixp23xx_sys_init();
+}
+
+MACHINE_START(IXDP2351, "Intel IXDP2351 Development Platform")
+	/* Maintainer: MontaVista Software, Inc. */
+	.phys_io	= IXP23XX_PERIPHERAL_PHYS,
+	.io_pg_offst	= ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc,
+	.map_io		= ixdp2351_map_io,
+	.init_irq	= ixdp2351_init_irq,
+	.timer		= &ixp23xx_timer,
+	.boot_params	= 0x00000100,
+	.init_machine	= ixdp2351_init,
+MACHINE_END

arch/arm/mach-ixp23xx/pci.c

+/*
+ * arch/arm/mach-ixp23xx/pci.c
+ *
+ * PCI routines for IXP23XX based systems
+ *
+ * Copyright (c) 2005 MontaVista Software, Inc.
+ *
+ * based on original code:
+ *
+ * Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Copyright 2002-2005 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/config.h>
+#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 <asm/io.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+#include <asm/system.h>
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+
+extern int (*external_fault) (unsigned long, struct pt_regs *);
+
+static int pci_master_aborts = 0;
+
+#ifdef DEBUG
+#define DBG(x...)	printk(x)
+#else
+#define DBG(x...)
+#endif
+
+int clear_master_aborts(void);
+
+static u32
+*ixp23xx_pci_config_addr(unsigned int bus_nr, unsigned int devfn, int where)
+{
+	u32 *paddress;
+
+	/*
+	 * Must be dword aligned
+	 */
+	where &= ~3;
+
+	/*
+	 * For top bus, generate type 0, else type 1
+	 */
+	if (!bus_nr) {
+		if (PCI_SLOT(devfn) >= 8)
+			return 0;
+
+		paddress = (u32 *) (IXP23XX_PCI_CFG0_VIRT
+				    | (1 << (PCI_SLOT(devfn) + 16))
+				    | (PCI_FUNC(devfn) << 8) | where);
+	} else {
+		paddress = (u32 *) (IXP23XX_PCI_CFG1_VIRT
+				    | (bus_nr << 16)
+				    | (PCI_SLOT(devfn) << 11)
+				    | (PCI_FUNC(devfn) << 8) | where);
+	}
+
+	return paddress;
+}
+
+/*
+ * 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 int ixp23xx_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+				int where, int size, u32 *value)
+{
+	u32 n;
+	u32 *addr;
+
+	n = where % 4;
+
+	DBG("In config_read(%d) %d from dev %d:%d:%d\n", size, where,
+		bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn));
+
+	addr = ixp23xx_pci_config_addr(bus->number, devfn, where);
+	if (!addr)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	pci_master_aborts = 0;
+	*value = (*addr >> (8*n)) & bytemask[size];
+	if (pci_master_aborts) {
+			pci_master_aborts = 0;
+			*value = 0xffffffff;
+			return PCIBIOS_DEVICE_NOT_FOUND;
+		}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+/*
+ * We don't do error checking on the address for writes.
+ * It's assumed that the user checked for the device existing first
+ * by doing a read first.
+ */
+static int ixp23xx_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+					int where, int size, u32 value)
+{
+	u32 mask;
+	u32 *addr;
+	u32 temp;
+
+	mask = ~(bytemask[size] << ((where % 0x4) * 8));
+	addr = ixp23xx_pci_config_addr(bus->number, devfn, where);
+	if (!addr)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	temp = (u32) (value) << ((where % 0x4) * 8);
+	*addr = (*addr & mask) | temp;
+
+	clear_master_aborts();
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_ops ixp23xx_pci_ops = {
+	.read	= ixp23xx_pci_read_config,
+	.write	= ixp23xx_pci_write_config,
+};
+
+struct pci_bus *ixp23xx_pci_scan_bus(int nr, struct pci_sys_data *sysdata)
+{
+	return pci_scan_bus(sysdata->busnr, &ixp23xx_pci_ops, sysdata);
+}
+
+int ixp23xx_pci_abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+{
+	volatile unsigned long temp;
+	unsigned long flags;
+
+	pci_master_aborts = 1;
+
+	local_irq_save(flags);
+	temp = *IXP23XX_PCI_CONTROL;
+
+	/*
+	 * master abort and cmd tgt err
+	 */
+	if (temp & ((1 << 8) | (1 << 5)))
+		*IXP23XX_PCI_CONTROL = temp;
+
+	temp = *IXP23XX_PCI_CMDSTAT;
+
+	if (temp & (1 << 29))
+		*IXP23XX_PCI_CMDSTAT = temp;
+	local_irq_restore(flags);
+
+	/*
+	 * 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;
+}
+
+int clear_master_aborts(void)
+{
+	volatile u32 temp;
+
+	temp = *IXP23XX_PCI_CONTROL;
+
+	/*
+	 * master abort and cmd tgt err
+	 */
+	if (temp & ((1 << 8) | (1 << 5)))
+		*IXP23XX_PCI_CONTROL = temp;
+
+	temp = *IXP23XX_PCI_CMDSTAT;
+
+	if (temp & (1 << 29))
+		*IXP23XX_PCI_CMDSTAT = temp;
+
+	return 0;
+}
+
+void __init ixp23xx_pci_preinit(void)
+{
+#ifdef __ARMEB__
+	*IXP23XX_PCI_CONTROL |= 0x20000;	/* set I/O swapping */
+#endif
+	/*
+	 * ADDR_31 needs to be clear for PCI memory access to CPP memory
+	 */
+	*IXP23XX_CPP2XSI_CURR_XFER_REG3 &= ~IXP23XX_CPP2XSI_ADDR_31;
+	*IXP23XX_CPP2XSI_CURR_XFER_REG3 |= IXP23XX_CPP2XSI_PSH_OFF;
+
+	/*
+	 * Select correct memory for PCI inbound transactions
+	 */
+	if (ixp23xx_cpp_boot()) {
+		*IXP23XX_PCI_CPP_ADDR_BITS &= ~(1 << 1);
+	} else {
+		*IXP23XX_PCI_CPP_ADDR_BITS |= (1 << 1);
+	}
+
+	hook_fault_code(16+6, ixp23xx_pci_abort_handler, SIGBUS,
+			"PCI config cycle to non-existent device");
+
+	*IXP23XX_PCI_ADDR_EXT = 0x0000e000;
+}
+
+/*
+ * Prevent PCI layer from seeing the inbound host-bridge resources
+ */
+static void __devinit pci_fixup_ixp23xx(struct pci_dev *dev)
+{
+	int i;
+
+	dev->class &= 0xff;
+	dev->class |= PCI_CLASS_BRIDGE_HOST << 8;
+	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+		dev->resource[i].start = 0;
+		dev->resource[i].end   = 0;
+		dev->resource[i].flags = 0;
+	}
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9002, pci_fixup_ixp23xx);
+
+/*
+ * IXP2300 systems often have large resource requirements, so we just
+ * use our own resource space.
+ */
+static struct resource ixp23xx_pci_mem_space = {
+	.start	= IXP23XX_PCI_MEM_START,
+	.end	= IXP23XX_PCI_MEM_START + IXP23XX_PCI_MEM_SIZE - 1,
+	.flags	= IORESOURCE_MEM,
+	.name	= "PCI Mem Space"
+};
+
+static struct resource ixp23xx_pci_io_space = {
+	.start	= 0x00000100,
+	.end	= 0x01ffffff,
+	.flags	= IORESOURCE_IO,
+	.name	= "PCI I/O Space"
+};
+
+int ixp23xx_pci_setup(int nr, struct pci_sys_data *sys)
+{
+	if (nr >= 1)
+		return 0;
+
+	sys->resource[0] = &ixp23xx_pci_io_space;
+	sys->resource[1] = &ixp23xx_pci_mem_space;
+	sys->resource[2] = NULL;
+
+	return 1;
+}

arch/arm/mach-ixp23xx/roadrunner.c

+/*
+ * arch/arm/mach-ixp23xx/roadrunner.c
+ *
+ * RoadRunner board-specific routines
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * Based on 2.4 code Copyright 2005 (c) ADI Engineering Corporation
+ *
+ * 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/init.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/bitops.h>
+#include <linux/ioport.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_core.h>
+#include <linux/device.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/mtd/physmap.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/system.h>
+#include <asm/tlbflush.h>
+#include <asm/pgtable.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/pci.h>
+
+/*
+ * Interrupt mapping
+ */
+#define INTA		IRQ_ROADRUNNER_PCI_INTA
+#define INTB		IRQ_ROADRUNNER_PCI_INTB
+#define INTC		IRQ_ROADRUNNER_PCI_INTC
+#define INTD		IRQ_ROADRUNNER_PCI_INTD
+
+#define INTC_PIN	IXP23XX_GPIO_PIN_11
+#define INTD_PIN	IXP23XX_GPIO_PIN_12
+
+static int __init roadrunner_map_irq(struct pci_dev *dev, u8 idsel, u8 pin)
+{
+	static int pci_card_slot_irq[] = {INTB, INTC, INTD, INTA};
+	static int pmc_card_slot_irq[] = {INTA, INTB, INTC, INTD};
+	static int usb_irq[] = {INTB, INTC, INTD, -1};
+	static int mini_pci_1_irq[] = {INTB, INTC, -1, -1};
+	static int mini_pci_2_irq[] = {INTC, INTD, -1, -1};
+
+	switch(dev->bus->number) {
+		case 0:
+			switch(dev->devfn) {
+			case 0x0: // PCI-PCI bridge
+				break;
+			case 0x8: // PCI Card Slot
+				return pci_card_slot_irq[pin - 1];
+			case 0x10: // PMC Slot
+				return pmc_card_slot_irq[pin - 1];
+			case 0x18: // PMC Slot Secondary Agent
+				break;
+			case 0x20: // IXP Processor
+				break;
+			default:
+				return NO_IRQ;
+			}
+			break;
+
+		case 1:
+			switch(dev->devfn) {
+			case 0x0: // IDE Controller
+				return (pin == 1) ? INTC : -1;
+			case 0x8: // USB fun 0
+			case 0x9: // USB fun 1
+			case 0xa: // USB fun 2
+				return usb_irq[pin - 1];
+			case 0x10: // Mini PCI 1
+				return mini_pci_1_irq[pin-1];
+			case 0x18: // Mini PCI 2
+				return mini_pci_2_irq[pin-1];
+			case 0x20: // MEM slot
+				return (pin == 1) ? INTA : -1;
+			default:
+				return NO_IRQ;
+			}
+			break;
+
+		default:
+			return NO_IRQ;
+	}
+
+	return NO_IRQ;
+}
+
+static void roadrunner_pci_preinit(void)
+{
+	set_irq_type(IRQ_ROADRUNNER_PCI_INTC, IRQT_LOW);
+	set_irq_type(IRQ_ROADRUNNER_PCI_INTD, IRQT_LOW);
+
+	ixp23xx_pci_preinit();
+}
+
+static struct hw_pci roadrunner_pci __initdata = {
+	.nr_controllers	= 1,
+	.preinit	= roadrunner_pci_preinit,
+	.setup		= ixp23xx_pci_setup,
+	.scan		= ixp23xx_pci_scan_bus,
+	.map_irq	= roadrunner_map_irq,
+};
+
+static int __init roadrunner_pci_init(void)
+{
+	if (machine_is_roadrunner())
+		pci_common_init(&roadrunner_pci);
+
+	return 0;
+};
+
+subsys_initcall(roadrunner_pci_init);
+
+static void __init roadrunner_init(void)
+{
+	physmap_configure(0x90000000, 0x04000000, 2, NULL);
+
+	/*
+	 * Mark flash as writeable
+	 */
+	IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE;
+	IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE;
+	IXP23XX_EXP_CS0[2] |= IXP23XX_FLASH_WRITABLE;
+	IXP23XX_EXP_CS0[3] |= IXP23XX_FLASH_WRITABLE;
+
+	ixp23xx_sys_init();
+}
+
+MACHINE_START(ROADRUNNER, "ADI Engineering RoadRunner Development Platform")
+	/* Maintainer: Deepak Saxena */
+	.phys_io	= IXP23XX_PERIPHERAL_PHYS,
+	.io_pg_offst	= ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc,
+	.map_io		= ixp23xx_map_io,
+	.init_irq	= ixp23xx_init_irq,
+	.timer		= &ixp23xx_timer,
+	.boot_params	= 0x00000100,
+	.init_machine	= roadrunner_init,
+MACHINE_END

include/asm-arm/arch-ixp23xx/debug-macro.S

+/*
+ * include/asm-arm/arch-ixp23xx/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ * Copyright (C) 1994-1999 Russell King
+ * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * 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 <asm/arch/ixp23xx.h>
+
+		.macro	addruart,rx
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1				@ mmu enabled?
+		ldreq	\rx, =IXP23XX_PERIPHERAL_PHYS 	@ physical
+		ldrne	\rx, =IXP23XX_PERIPHERAL_VIRT	@ virtual
+		.endm
+
+#define UART_SHIFT	2
+#include <asm/hardware/debug-8250.S>

include/asm-arm/arch-ixp23xx/dma.h

+/*
+ * include/asm-arm/arch-ixp23xx/dma.h
+ */

include/asm-arm/arch-ixp23xx/entry-macro.S

+/*
+ * include/asm-arm/arch-ixp23xx/entry-macro.S
+ */
+
+		.macro	disable_fiq
+		.endm
+
+		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+		ldr	\irqnr, =(IXP23XX_INTC_VIRT + IXP23XX_INTR_IRQ_ENC_ST_OFFSET)
+		ldr	\irqnr, [\irqnr]	@ get interrupt number
+		cmp	\irqnr, #0x0		@ suprious interrupt ?
+		movne	\irqnr, \irqnr, lsr #2	@ skip unwanted low order bits
+		subne	\irqnr, \irqnr, #1	@ convert to 0 based
+
+#if 0
+		cmp	\irqnr, #IRQ_IXP23XX_PCI_INT_RPH
+		bne	1001f
+		mov	\irqnr, #IRQ_IXP23XX_INTA
+
+		ldr	\irqnr, =0xf5000030
+
+		mov	\tmp, #(1<<26)
+		tst	\irqnr, \tmp
+		movne	\irqnr, #IRQ_IXP23XX_INTB
+
+		mov	\tmp, #(1<<27)
+		tst	\irqnr, \tmp
+		movne	\irqnr, #IRQ_IXP23XX_INTA
+1001:
+#endif
+		.endm

include/asm-arm/arch-ixp23xx/hardware.h

+/*
+ * include/asm-arm/arch-ixp23xx/hardware.h
+ *
+ * Copyright (C) 2002-2004 Intel Corporation.
+ * Copyricht (C) 2005 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.
+ *
+ * Hardware definitions for IXP23XX based systems
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+/* PCI IO info */
+#define PCIO_BASE		IXP23XX_PCI_IO_VIRT
+#define PCIBIOS_MIN_IO		0x00000000
+#define PCIBIOS_MIN_MEM		0xe0000000
+
+#include "ixp23xx.h"
+
+#define pcibios_assign_all_busses()	0
+
+/*
+ * Platform helper functions
+ */
+#include "platform.h"
+
+/*
+ * Platform-specific headers
+ */
+#include "ixdp2351.h"
+
+
+#endif

include/asm-arm/arch-ixp23xx/io.h

+/*
+ * include/asm-arm/arch-ixp23xx/io.h
+ *
+ * Original Author: Naeem M Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2003-2005 Intel Corp.
+ * Copyright (C) 2005 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.
+ */
+
+#ifndef __ASM_ARCH_IO_H
+#define __ASM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+#define __io(p)		((void __iomem*)((p) + IXP23XX_PCI_IO_VIRT))
+#define __mem_pci(a)	(a)
+
+#include <linux/kernel.h>	/* For BUG */
+
+static inline void __iomem *
+ixp23xx_ioremap(unsigned long addr, unsigned long size, unsigned long flags)
+{
+	if (addr >= IXP23XX_PCI_MEM_START &&
+		addr <= IXP23XX_PCI_MEM_START + IXP23XX_PCI_MEM_SIZE) {
+		if (addr + size > IXP23XX_PCI_MEM_START + IXP23XX_PCI_MEM_SIZE)
+			return NULL;
+
+		return (void __iomem *)
+ 			((addr - IXP23XX_PCI_MEM_START) + IXP23XX_PCI_MEM_VIRT);
+	}
+
+	return __ioremap(addr, size, flags);
+}
+
+static inline void
+ixp23xx_iounmap(void __iomem *addr)
+{
+	if ((((u32)addr) >= IXP23XX_PCI_MEM_VIRT) &&
+	    (((u32)addr) < IXP23XX_PCI_MEM_VIRT + IXP23XX_PCI_MEM_SIZE))
+		return;
+
+	__iounmap(addr);
+}
+
+#define __arch_ioremap(a,s,f)	ixp23xx_ioremap(a,s,f)
+#define __arch_iounmap(a)	ixp23xx_iounmap(a)
+
+
+#endif

include/asm-arm/arch-ixp23xx/irqs.h

+/*
+ * include/asm-arm/arch-ixp23xx/irqs.h
+ *
+ * IRQ definitions for IXP23XX based systems
+ *
+ * Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ *
+ * Copyright (C) 2003-2004 Intel Corporation.
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H
+
+#define NR_IXP23XX_IRQS			IRQ_IXP23XX_INTB+1
+#define IRQ_IXP23XX_EXTIRQS		NR_IXP23XX_IRQS
+
+
+#define IRQ_IXP23XX_DBG0		0	/* Debug/Execution/MBox */
+#define IRQ_IXP23XX_DBG1		1	/* Debug/Execution/MBox */
+#define IRQ_IXP23XX_NPE_TRG		2	/* npe_trigger */
+#define IRQ_IXP23XX_TIMER1		3	/* Timer[0] */
+#define IRQ_IXP23XX_TIMER2		4	/* Timer[1] */
+#define IRQ_IXP23XX_TIMESTAMP		5	/* Timer[2], Time-stamp */
+#define IRQ_IXP23XX_WDOG		6	/* Time[3], Watchdog Timer */
+#define IRQ_IXP23XX_PCI_DBELL		7	/* PCI Doorbell */
+#define IRQ_IXP23XX_PCI_DMA1		8	/* PCI DMA Channel 1 */
+#define IRQ_IXP23XX_PCI_DMA2		9	/* PCI DMA Channel 2 */
+#define IRQ_IXP23XX_PCI_DMA3		10	/* PCI DMA Channel 3 */
+#define IRQ_IXP23XX_PCI_INT_RPH		11	/* pcxg_pci_int_rph */
+#define IRQ_IXP23XX_CPP_PMU		12	/* xpxg_pm_int_rpl */
+#define IRQ_IXP23XX_SWINT0		13	/* S/W Interrupt0 */
+#define IRQ_IXP23XX_SWINT1		14	/* S/W Interrupt1 */
+#define IRQ_IXP23XX_UART2		15	/* UART1 Interrupt */
+#define IRQ_IXP23XX_UART1		16	/* UART0 Interrupt */
+#define IRQ_IXP23XX_XSI_PMU_ROLLOVER	17	/* AHB Performance M. Unit counter rollover */
+#define IRQ_IXP23XX_XSI_AHB_PM0		18	/* intr_pm_o */
+#define IRQ_IXP23XX_XSI_AHB_ECE0	19	/* intr_ece_o */
+#define IRQ_IXP23XX_XSI_AHB_GASKET	20	/* gas_intr_o */
+#define IRQ_IXP23XX_XSI_CPP		21	/* xsi2cpp_int */
+#define IRQ_IXP23XX_CPP_XSI		22	/* cpp2xsi_int */
+#define IRQ_IXP23XX_ME_ATTN0		23	/* ME_ATTN */
+#define IRQ_IXP23XX_ME_ATTN1		24	/* ME_ATTN */
+#define IRQ_IXP23XX_ME_ATTN2		25	/* ME_ATTN */
+#define IRQ_IXP23XX_ME_ATTN3		26	/* ME_ATTN */
+#define IRQ_IXP23XX_PCI_ERR_RPH		27	/* PCXG_PCI_ERR_RPH */
+#define IRQ_IXP23XX_D0XG_ECC_CORR	28	/* D0XG_DRAM_ECC_CORR */
+#define IRQ_IXP23XX_D0XG_ECC_UNCORR	29	/* D0XG_DRAM_ECC_UNCORR */
+#define IRQ_IXP23XX_SRAM_ERR1		30	/* SRAM1_ERR */
+#define IRQ_IXP23XX_SRAM_ERR0		31	/* SRAM0_ERR */
+#define IRQ_IXP23XX_MEDIA_ERR		32	/* MEDIA_ERR */
+#define IRQ_IXP23XX_STH_DRAM_ECC_MAJ	33	/* STH_DRAM0_ECC_MAJ */
+#define IRQ_IXP23XX_GPIO6		34	/* GPIO0 interrupts */
+#define IRQ_IXP23XX_GPIO7		35	/* GPIO1 interrupts */
+#define IRQ_IXP23XX_GPIO8		36	/* GPIO2 interrupts */
+#define IRQ_IXP23XX_GPIO9		37	/* GPIO3 interrupts */
+#define IRQ_IXP23XX_GPIO10		38	/* GPIO4 interrupts */
+#define IRQ_IXP23XX_GPIO11		39	/* GPIO5 interrupts */
+#define IRQ_IXP23XX_GPIO12		40	/* GPIO6 interrupts */
+#define IRQ_IXP23XX_GPIO13		41	/* GPIO7 interrupts */
+#define IRQ_IXP23XX_GPIO14		42	/* GPIO8 interrupts */
+#define IRQ_IXP23XX_GPIO15		43	/* GPIO9 interrupts */
+#define IRQ_IXP23XX_SHAC_RING0		44	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING1		45	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING2		46	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING3		47	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING4		48	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING5		49	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING6		50	/* SHAC RING Full */
+#define IRQ_IXP23XX_SHAC_RING7		51	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING8		52	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING9		53	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING10		54	/* SHAC Ring Full */
+#define IRQ_IXP23XX_SHAC_RING11		55	/* SHAC Ring Full */
+#define IRQ_IXP23XX_ME_THREAD_A0_ME0	56	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A1_ME0	57	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A2_ME0	58	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A3_ME0	59	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A4_ME0	60	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A5_ME0	61	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A6_ME0	62	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A7_ME0	63	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A8_ME1	64	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A9_ME1	65	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A10_ME1	66	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A11_ME1	67	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A12_ME1	68	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A13_ME1	69	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A14_ME1	70	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A15_ME1	71	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A16_ME2	72	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A17_ME2	73	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A18_ME2	74	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A19_ME2	75	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A20_ME2	76	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A21_ME2	77	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A22_ME2	78	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A23_ME2	79	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A24_ME3	80	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A25_ME3	81	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A26_ME3	82	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A27_ME3	83	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A28_ME3	84	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A29_ME3	85	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A30_ME3	86	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_A31_ME3	87	/* ME_THREAD_A */
+#define IRQ_IXP23XX_ME_THREAD_B0_ME0	88	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B1_ME0	89	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B2_ME0	90	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B3_ME0	91	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B4_ME0	92	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B5_ME0	93	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B6_ME0	94	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B7_ME0	95	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B8_ME1	96	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B9_ME1	97	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B10_ME1	98	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B11_ME1	99	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B12_ME1	100	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B13_ME1	101	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B14_ME1	102	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B15_ME1	103	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B16_ME2	104	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B17_ME2	105	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B18_ME2	106	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B19_ME2	107	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B20_ME2	108	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B21_ME2	109	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B22_ME2	110	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B23_ME2	111	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B24_ME3	112	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B25_ME3	113	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B26_ME3	114	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B27_ME3	115	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B28_ME3	116	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B29_ME3	117	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B30_ME3	118	/* ME_THREAD_B */
+#define IRQ_IXP23XX_ME_THREAD_B31_ME3	119	/* ME_THREAD_B */
+
+#define NUM_IXP23XX_RAW_IRQS		120
+
+#define IRQ_IXP23XX_INTA		120	/* Indirect pcxg_pci_int_rph */
+#define IRQ_IXP23XX_INTB		121	/* Indirect pcxg_pci_int_rph */
+
+#define NR_IXP23XX_IRQ			(IRQ_IXP23XX_INTB + 1)
+
+/*
+ * We default to 32 per-board IRQs. Increase this number if you need
+ * more, but keep it realistic.
+ */
+#define NR_IXP23XX_MACH_IRQS 		32
+
+#define NR_IRQS				NR_IXP23XX_IRQS + NR_IXP23XX_MACH_IRQS
+
+#define IXP23XX_MACH_IRQ(irq) 		(NR_IXP23XX_IRQ + (irq))
+
+
+/*
+ * IXDP2351-specific interrupts
+ */
+
+/*
+ * External PCI interrupts signaled through INTB
+ *
+ */
+#define IXDP2351_INTB_IRQ_BASE 		0
+#define IRQ_IXDP2351_INTA_82546		IXP23XX_MACH_IRQ(0)
+#define IRQ_IXDP2351_INTB_82546		IXP23XX_MACH_IRQ(1)
+#define IRQ_IXDP2351_SPCI_DB_0		IXP23XX_MACH_IRQ(2)
+#define IRQ_IXDP2351_SPCI_DB_1		IXP23XX_MACH_IRQ(3)
+#define IRQ_IXDP2351_SPCI_PMC_INTA	IXP23XX_MACH_IRQ(4)
+#define IRQ_IXDP2351_SPCI_PMC_INTB	IXP23XX_MACH_IRQ(5)
+#define IRQ_IXDP2351_SPCI_PMC_INTC	IXP23XX_MACH_IRQ(6)
+#define IRQ_IXDP2351_SPCI_PMC_INTD	IXP23XX_MACH_IRQ(7)
+#define IRQ_IXDP2351_SPCI_FIC		IXP23XX_MACH_IRQ(8)
+
+#define IXDP2351_INTB_IRQ_BIT(irq)	(irq - IXP23XX_MACH_IRQ(0))
+#define IXDP2351_INTB_IRQ_MASK(irq)	(1 << IXDP2351_INTB_IRQ_BIT(irq))
+#define IXDP2351_INTB_IRQ_VALID		0x01FF
+#define IXDP2351_INTB_IRQ_NUM 		16
+
+/*
+ * Other external interrupts signaled through INTA
+ */
+#define IXDP2351_INTA_IRQ_BASE 		16
+#define IRQ_IXDP2351_IPMI_FROM		IXP23XX_MACH_IRQ(16)
+#define IRQ_IXDP2351_125US		IXP23XX_MACH_IRQ(17)
+#define IRQ_IXDP2351_DB_0_ADD		IXP23XX_MACH_IRQ(18)
+#define IRQ_IXDP2351_DB_1_ADD		IXP23XX_MACH_IRQ(19)
+#define IRQ_IXDP2351_DEBUG1		IXP23XX_MACH_IRQ(20)
+#define IRQ_IXDP2351_ADD_UART		IXP23XX_MACH_IRQ(21)
+#define IRQ_IXDP2351_FIC_ADD		IXP23XX_MACH_IRQ(24)
+#define IRQ_IXDP2351_CS8900		IXP23XX_MACH_IRQ(25)
+#define IRQ_IXDP2351_BBSRAM		IXP23XX_MACH_IRQ(26)
+#define IRQ_IXDP2351_CONFIG_MEDIA	IXP23XX_MACH_IRQ(27)
+#define IRQ_IXDP2351_CLOCK_REF		IXP23XX_MACH_IRQ(28)
+#define IRQ_IXDP2351_A10_NP		IXP23XX_MACH_IRQ(29)
+#define IRQ_IXDP2351_A11_NP		IXP23XX_MACH_IRQ(30)
+#define IRQ_IXDP2351_DEBUG_NP		IXP23XX_MACH_IRQ(31)
+
+#define IXDP2351_INTA_IRQ_BIT(irq) 	(irq - IXP23XX_MACH_IRQ(16))
+#define IXDP2351_INTA_IRQ_MASK(irq) 	(1 << IXDP2351_INTA_IRQ_BIT(irq))
+#define IXDP2351_INTA_IRQ_VALID 	0xFF3F
+#define IXDP2351_INTA_IRQ_NUM 		16
+
+
+/*
+ * ADI RoadRunner IRQs
+ */
+#define IRQ_ROADRUNNER_PCI_INTA 	IRQ_IXP23XX_INTA
+#define IRQ_ROADRUNNER_PCI_INTB 	IRQ_IXP23XX_INTB
+#define IRQ_ROADRUNNER_PCI_INTC 	IRQ_IXP23XX_GPIO11
+#define IRQ_ROADRUNNER_PCI_INTD 	IRQ_IXP23XX_GPIO12
+
+/*
+ * Put new board definitions here
+ */
+
+
+#endif

include/asm-arm/arch-ixp23xx/ixdp2351.h

+/*
+ * include/asm-arm/arch-ixp23xx/ixdp2351.h
+ *
+ * Register and other defines for IXDP2351
+ *
+ * Copyright (c) 2002-2004 Intel Corp.
+ * Copytight (c) 2005 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 as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __ASM_ARCH_IXDP2351_H
+#define __ASM_ARCH_IXDP2351_H
+
+/*
+ * NP module memory map
+ */
+#define IXDP2351_NP_PHYS_BASE		(IXP23XX_EXP_BUS_CS4_BASE)
+#define IXDP2351_NP_PHYS_SIZE		0x00100000
+#define IXDP2351_NP_VIRT_BASE		0xeff00000
+
+#define IXDP2351_VIRT_CS8900_BASE	(IXDP2351_NP_VIRT_BASE)
+#define IXDP2351_VIRT_CS8900_END	(IXDP2351_VIRT_CS8900_BASE + 16)
+
+#define IXDP2351_VIRT_NP_CPLD_BASE 	(IXP23XX_EXP_BUS_CS4_BASE_VIRT + 0x00010000)
+
+#define IXDP2351_NP_CPLD_REG(reg) ((volatile u16 *)(IXDP2351_VIRT_NP_CPLD_BASE + reg))
+
+#define IXDP2351_NP_CPLD_RESET1_REG	IXDP2351_NP_CPLD_REG(0x00)
+#define IXDP2351_NP_CPLD_LED_REG	IXDP2351_NP_CPLD_REG(0x02)
+#define IXDP2351_NP_CPLD_VERSION_REG	IXDP2351_NP_CPLD_REG(0x04)
+
+/*
+ * Base board module memory map
+ */
+
+#define IXDP2351_BB_BASE_PHYS		(IXP23XX_EXP_BUS_CS5_BASE)
+#define IXDP2351_BB_SIZE		0x01000000
+#define IXDP2351_BB_BASE_VIRT		(0xee000000)
+
+#define IXDP2351_BB_AREA_BASE(offset)	(IXDP2351_BB_BASE_VIRT + offset)
+
+#define IXDP2351_VIRT_NVRAM_BASE	IXDP2351_BB_AREA_BASE(0x0)
+#define IXDP2351_NVRAM_SIZE		(0x20000)
+
+#define IXDP2351_VIRT_MB_IXF1104_BASE	IXDP3251_BB_AREA_BASE(0x00020000)
+#define IXDP2351_VIRT_ADD_UART_BASE	IXDP2351_BB_AREA_BASE(0x000240C0)
+#define IXDP2351_VIRT_FIC_BASE		IXDP2351_BB_AREA_BASE(0x00200000)
+#define IXDP2351_VIRT_DB0_BASE		IXDP2351_BB_AREA_BASE(0x00400000)
+#define IXDP2351_VIRT_DB1_BASE		IXDP2351_BB_AREA_BASE(0x00600000)
+#define IXDP2351_VIRT_CPLD_BASE		IXDP2351_BB_AREA_BASE(0x00024000)
+
+/*
+ * On board CPLD registers
+ */
+#define IXDP2351_CPLD_BB_REG(reg) ((volatile u16 *)(IXDP2351_VIRT_CPLD_BASE + reg))
+
+#define IXDP2351_CPLD_RESET0_REG	IXDP2351_CPLD_BB_REG(0x00)
+#define IXDP2351_CPLD_RESET1_REG	IXDP2351_CPLD_BB_REG(0x04)
+
+#define IXDP2351_CPLD_RESET1_MAGIC 	0x55AA
+#define IXDP2351_CPLD_RESET1_ENABLE 	0x8000
+
+#define IXDP2351_CPLD_FPGA_CONFIG_REG	IXDP2351_CPLD_BB_REG(0x08)
+#define IXDP2351_CPLD_INTB_MASK_SET_REG	IXDP2351_CPLD_BB_REG(0x10)
+#define IXDP2351_CPLD_INTA_MASK_SET_REG	IXDP2351_CPLD_BB_REG(0x14)
+#define IXDP2351_CPLD_INTB_STAT_REG	IXDP2351_CPLD_BB_REG(0x18)
+#define IXDP2351_CPLD_INTA_STAT_REG	IXDP2351_CPLD_BB_REG(0x1C)
+#define IXDP2351_CPLD_INTB_RAW_REG	IXDP2351_CPLD_BB_REG(0x20)	/* read */
+#define IXDP2351_CPLD_INTA_RAW_REG	IXDP2351_CPLD_BB_REG(0x24)	/* read */
+#define IXDP2351_CPLD_INTB_MASK_CLR_REG	IXDP2351_CPLD_INTB_RAW_REG	/* write */
+#define IXDP2351_CPLD_INTA_MASK_CLR_REG	IXDP2351_CPLD_INTA_RAW_REG	/* write */
+#define IXDP2351_CPLD_INTB_SIM_REG	IXDP2351_CPLD_BB_REG(0x28)
+#define IXDP2351_CPLD_INTA_SIM_REG	IXDP2351_CPLD_BB_REG(0x2C)
+	/* Interrupt bits are defined in irqs.h */
+#define IXDP2351_CPLD_BB_GBE0_REG	IXDP2351_CPLD_BB_REG(0x30)
+#define IXDP2351_CPLD_BB_GBE1_REG	IXDP2351_CPLD_BB_REG(0x34)
+
+/* #define IXDP2351_CPLD_BB_MISC_REG	IXDP2351_CPLD_REG(0x1C) */
+/* #define IXDP2351_CPLD_BB_MISC_REV_MASK	0xFF		*/
+/* #define IXDP2351_CPLD_BB_GDXCS0_REG	IXDP2351_CPLD_REG(0x24) */
+/* #define IXDP2351_CPLD_BB_GDXCS1_REG	IXDP2351_CPLD_REG(0x28) */
+/* #define IXDP2351_CPLD_BB_CLOCK_REG	IXDP2351_CPLD_REG(0x04) */
+
+
+#endif

include/asm-arm/arch-ixp23xx/ixp23xx.h

+/*
+ * include/asm-arm/arch-ixp23xx/ixp23xx.h
+ *
+ * Register definitions for IXP23XX
+ *
+ * Copyright (C) 2003-2005 Intel Corporation.
+ * Copyright (C) 2005 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.
+ */
+
+#ifndef __ASM_ARCH_IXP23XX_H
+#define __ASM_ARCH_IXP23XX_H
+
+/*
+ * IXP2300 linux memory map:
+ *
+ * virt		phys		size
+ * fffd0000	a0000000	64K		XSI2CPP_CSR
+ * fffc0000	c4000000	4K		EXP_CFG
+ * fff00000	c8000000	64K		PERIPHERAL
+ * fe000000	1c0000000	16M		CAP_CSR
+ * fd000000	1c8000000	16M		MSF_CSR
+ * fb000000			16M		---
+ * fa000000	1d8000000	32M		PCI_IO
+ * f8000000	1da000000	32M		PCI_CFG
+ * f6000000	1de000000	32M		PCI_CREG
+ * f4000000			32M		---
+ * f0000000	1e0000000	64M		PCI_MEM
+ * e[c-f]000000					per-platform mappings
+ */
+
+
+/****************************************************************************
+ * Static mappings.
+ ****************************************************************************/
+#define IXP23XX_XSI2CPP_CSR_PHYS	0xa0000000
+#define IXP23XX_XSI2CPP_CSR_VIRT	0xfffd0000
+#define IXP23XX_XSI2CPP_CSR_SIZE	0x00010000
+
+#define IXP23XX_EXP_CFG_PHYS		0xc4000000
+#define IXP23XX_EXP_CFG_VIRT		0xfffc0000
+#define IXP23XX_EXP_CFG_SIZE		0x00001000
+
+#define IXP23XX_PERIPHERAL_PHYS		0xc8000000
+#define IXP23XX_PERIPHERAL_VIRT		0xfff00000
+#define IXP23XX_PERIPHERAL_SIZE		0x00010000
+
+#define IXP23XX_CAP_CSR_PHYS		0x1c0000000ULL
+#define IXP23XX_CAP_CSR_VIRT		0xfe000000
+#define IXP23XX_CAP_CSR_SIZE		0x01000000
+
+#define IXP23XX_MSF_CSR_PHYS		0x1c8000000ULL
+#define IXP23XX_MSF_CSR_VIRT		0xfd000000
+#define IXP23XX_MSF_CSR_SIZE		0x01000000
+
+#define IXP23XX_PCI_IO_PHYS		0x1d8000000ULL
+#define IXP23XX_PCI_IO_VIRT		0xfa000000
+#define IXP23XX_PCI_IO_SIZE		0x02000000
+
+#define IXP23XX_PCI_CFG_PHYS		0x1da000000ULL
+#define IXP23XX_PCI_CFG_VIRT		0xf8000000
+#define IXP23XX_PCI_CFG_SIZE		0x02000000
+#define IXP23XX_PCI_CFG0_VIRT		IXP23XX_PCI_CFG_VIRT
+#define IXP23XX_PCI_CFG1_VIRT		(IXP23XX_PCI_CFG_VIRT + 0x01000000)
+
+#define IXP23XX_PCI_CREG_PHYS		0x1de000000ULL
+#define IXP23XX_PCI_CREG_VIRT		0xf6000000
+#define IXP23XX_PCI_CREG_SIZE		0x02000000
+#define IXP23XX_PCI_CSR_VIRT		(IXP23XX_PCI_CREG_VIRT + 0x01000000)
+
+#define IXP23XX_PCI_MEM_START		0xe0000000
+#define IXP23XX_PCI_MEM_PHYS		0x1e0000000ULL
+#define IXP23XX_PCI_MEM_VIRT		0xf0000000
+#define IXP23XX_PCI_MEM_SIZE		0x04000000
+
+
+/****************************************************************************
+ * XSI2CPP CSRs.
+ ****************************************************************************/
+#define IXP23XX_XSI2CPP_REG(x)		((volatile unsigned long *)(IXP23XX_XSI2CPP_CSR_VIRT + (x)))
+#define IXP23XX_CPP2XSI_CURR_XFER_REG3	IXP23XX_XSI2CPP_REG(0xf8)
+#define IXP23XX_CPP2XSI_ADDR_31		(1 << 19)
+#define IXP23XX_CPP2XSI_PSH_OFF		(1 << 20)
+#define IXP23XX_CPP2XSI_COH_OFF		(1 << 21)
+
+
+/****************************************************************************
+ * Expansion Bus Config.
+ ****************************************************************************/
+#define IXP23XX_EXP_CFG_REG(x)		((volatile unsigned long *)(IXP23XX_EXP_CFG_VIRT + (x)))
+#define IXP23XX_EXP_CS0			IXP23XX_EXP_CFG_REG(0x00)
+#define IXP23XX_EXP_CS1			IXP23XX_EXP_CFG_REG(0x04)
+#define IXP23XX_EXP_CS2			IXP23XX_EXP_CFG_REG(0x08)
+#define IXP23XX_EXP_CS3			IXP23XX_EXP_CFG_REG(0x0c)
+#define IXP23XX_EXP_CS4			IXP23XX_EXP_CFG_REG(0x10)
+#define IXP23XX_EXP_CS5			IXP23XX_EXP_CFG_REG(0x14)
+#define IXP23XX_EXP_CS6			IXP23XX_EXP_CFG_REG(0x18)
+#define IXP23XX_EXP_CS7			IXP23XX_EXP_CFG_REG(0x1c)
+#define IXP23XX_FLASH_WRITABLE		(0x2)
+#define IXP23XX_FLASH_BUS8		(0x1)
+
+#define IXP23XX_EXP_CFG0		IXP23XX_EXP_CFG_REG(0x20)
+#define IXP23XX_EXP_CFG1		IXP23XX_EXP_CFG_REG(0x24)
+#define IXP23XX_EXP_CFG0_MEM_MAP		(1 << 31)
+#define IXP23XX_EXP_CFG0_XSCALE_SPEED_SEL 	(3 << 22)
+#define IXP23XX_EXP_CFG0_XSCALE_SPEED_EN	(1 << 21)
+#define IXP23XX_EXP_CFG0_CPP_SPEED_SEL		(3 << 19)
+#define IXP23XX_EXP_CFG0_CPP_SPEED_EN		(1 << 18)
+#define IXP23XX_EXP_CFG0_PCI_SWIN		(3 << 16)
+#define IXP23XX_EXP_CFG0_PCI_DWIN		(3 << 14)
+#define IXP23XX_EXP_CFG0_PCI33_MODE		(1 << 13)
+#define IXP23XX_EXP_CFG0_QDR_SPEED_SEL		(1 << 12)
+#define IXP23XX_EXP_CFG0_CPP_DIV_SEL		(1 << 5)
+#define IXP23XX_EXP_CFG0_XSI_NOT_PRES		(1 << 4)
+#define IXP23XX_EXP_CFG0_PROM_BOOT		(1 << 3)
+#define IXP23XX_EXP_CFG0_PCI_ARB		(1 << 2)
+#define IXP23XX_EXP_CFG0_PCI_HOST		(1 << 1)
+#define IXP23XX_EXP_CFG0_FLASH_WIDTH		(1 << 0)
+
+#define IXP23XX_EXP_UNIT_FUSE		IXP23XX_EXP_CFG_REG(0x28)
+#define IXP23XX_EXP_MSF_MUX		IXP23XX_EXP_CFG_REG(0x30)
+
+#define IXP23XX_EXP_BUS_PHYS		0x90000000
+#define IXP23XX_EXP_BUS_WINDOW_SIZE	0x01000000
+
+#define IXP23XX_EXP_BUS_CS0_BASE	(IXP23XX_EXP_BUS_PHYS + 0x00000000)
+#define IXP23XX_EXP_BUS_CS1_BASE	(IXP23XX_EXP_BUS_PHYS + 0x01000000)
+#define IXP23XX_EXP_BUS_CS2_BASE	(IXP23XX_EXP_BUS_PHYS + 0x02000000)
+#define IXP23XX_EXP_BUS_CS3_BASE	(IXP23XX_EXP_BUS_PHYS + 0x03000000)
+#define IXP23XX_EXP_BUS_CS4_BASE	(IXP23XX_EXP_BUS_PHYS + 0x04000000)
+#define IXP23XX_EXP_BUS_CS5_BASE	(IXP23XX_EXP_BUS_PHYS + 0x05000000)
+#define IXP23XX_EXP_BUS_CS6_BASE	(IXP23XX_EXP_BUS_PHYS + 0x06000000)
+#define IXP23XX_EXP_BUS_CS7_BASE	(IXP23XX_EXP_BUS_PHYS + 0x07000000)
+
+
+/****************************************************************************
+ * Peripherals.
+ ****************************************************************************/
+#define IXP23XX_UART1_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x0000)
+#define IXP23XX_UART2_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x1000)
+#define IXP23XX_PMU_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x2000)
+#define IXP23XX_INTC_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x3000)
+#define IXP23XX_GPIO_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x4000)
+#define IXP23XX_TIMER_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x5000)
+#define IXP23XX_NPE0_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x6000)
+#define IXP23XX_DSR_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x7000)
+#define IXP23XX_NPE1_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x8000)
+#define IXP23XX_ETH0_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0x9000)
+#define IXP23XX_ETH1_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0xA000)
+#define IXP23XX_GIG0_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0xB000)
+#define IXP23XX_GIG1_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0xC000)
+#define IXP23XX_DDRS_VIRT		(IXP23XX_PERIPHERAL_VIRT + 0xD000)
+
+#define IXP23XX_UART1_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x0000)
+#define IXP23XX_UART2_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x1000)
+#define IXP23XX_PMU_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x2000)
+#define IXP23XX_INTC_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x3000)
+#define IXP23XX_GPIO_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x4000)
+#define IXP23XX_TIMER_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x5000)
+#define IXP23XX_NPE0_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x6000)
+#define IXP23XX_DSR_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x7000)
+#define IXP23XX_NPE1_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x8000)
+#define IXP23XX_ETH0_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0x9000)
+#define IXP23XX_ETH1_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0xA000)
+#define IXP23XX_GIG0_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0xB000)
+#define IXP23XX_GIG1_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0xC000)
+#define IXP23XX_DDRS_PHYS		(IXP23XX_PERIPHERAL_PHYS + 0xD000)
+
+
+/****************************************************************************
+ * Interrupt controller.
+ ****************************************************************************/
+#define IXP23XX_INTC_REG(x)		 ((volatile unsigned long *)(IXP23XX_INTC_VIRT + (x)))
+#define IXP23XX_INTR_ST1		IXP23XX_INTC_REG(0x00)
+#define IXP23XX_INTR_ST2		IXP23XX_INTC_REG(0x04)
+#define IXP23XX_INTR_ST3		IXP23XX_INTC_REG(0x08)
+#define IXP23XX_INTR_ST4		IXP23XX_INTC_REG(0x0c)
+#define IXP23XX_INTR_EN1		IXP23XX_INTC_REG(0x10)
+#define IXP23XX_INTR_EN2		IXP23XX_INTC_REG(0x14)
+#define IXP23XX_INTR_EN3		IXP23XX_INTC_REG(0x18)
+#define IXP23XX_INTR_EN4		IXP23XX_INTC_REG(0x1c)
+#define IXP23XX_INTR_SEL1		IXP23XX_INTC_REG(0x20)
+#define IXP23XX_INTR_SEL2		IXP23XX_INTC_REG(0x24)
+#define IXP23XX_INTR_SEL3		IXP23XX_INTC_REG(0x28)
+#define IXP23XX_INTR_SEL4		IXP23XX_INTC_REG(0x2c)
+#define IXP23XX_INTR_IRQ_ST1		IXP23XX_INTC_REG(0x30)
+#define IXP23XX_INTR_IRQ_ST2		IXP23XX_INTC_REG(0x34)
+#define IXP23XX_INTR_IRQ_ST3		IXP23XX_INTC_REG(0x38)
+#define IXP23XX_INTR_IRQ_ST4		IXP23XX_INTC_REG(0x3c)
+#define IXP23XX_INTR_IRQ_ENC_ST_OFFSET	0x54
+
+
+/****************************************************************************
+ * GPIO.
+ ****************************************************************************/
+#define IXP23XX_GPIO_REG(x)		((volatile unsigned long *)(IXP23XX_GPIO_VIRT + (x)))
+#define IXP23XX_GPIO_GPOUTR		IXP23XX_GPIO_REG(0x00)
+#define IXP23XX_GPIO_GPOER		IXP23XX_GPIO_REG(0x04)
+#define IXP23XX_GPIO_GPINR		IXP23XX_GPIO_REG(0x08)
+#define IXP23XX_GPIO_GPISR		IXP23XX_GPIO_REG(0x0c)
+#define IXP23XX_GPIO_GPIT1R		IXP23XX_GPIO_REG(0x10)
+#define IXP23XX_GPIO_GPIT2R		IXP23XX_GPIO_REG(0x14)
+#define IXP23XX_GPIO_GPCLKR		IXP23XX_GPIO_REG(0x18)
+#define IXP23XX_GPIO_GPDBSELR 		IXP23XX_GPIO_REG(0x1c)
+
+#define IXP23XX_GPIO_STYLE_MASK		0x7
+#define IXP23XX_GPIO_STYLE_ACTIVE_HIGH	0x0
+#define IXP23XX_GPIO_STYLE_ACTIVE_LOW	0x1
+#define IXP23XX_GPIO_STYLE_RISING_EDGE	0x2
+#define IXP23XX_GPIO_STYLE_FALLING_EDGE	0x3
+#define IXP23XX_GPIO_STYLE_TRANSITIONAL	0x4
+
+#define IXP23XX_GPIO_STYLE_SIZE		3
+
+
+/****************************************************************************
+ * Timer.
+ ****************************************************************************/
+#define IXP23XX_TIMER_REG(x)		((volatile unsigned long *)(IXP23XX_TIMER_VIRT + (x)))
+#define IXP23XX_TIMER_CONT		IXP23XX_TIMER_REG(0x00)
+#define IXP23XX_TIMER1_TIMESTAMP	IXP23XX_TIMER_REG(0x04)
+#define IXP23XX_TIMER1_RELOAD		IXP23XX_TIMER_REG(0x08)
+#define IXP23XX_TIMER2_TIMESTAMP	IXP23XX_TIMER_REG(0x0c)
+#define IXP23XX_TIMER2_RELOAD		IXP23XX_TIMER_REG(0x10)
+#define IXP23XX_TIMER_WDOG		IXP23XX_TIMER_REG(0x14)
+#define IXP23XX_TIMER_WDOG_EN		IXP23XX_TIMER_REG(0x18)
+#define IXP23XX_TIMER_WDOG_KEY		IXP23XX_TIMER_REG(0x1c)
+#define IXP23XX_TIMER_WDOG_KEY_MAGIC	0x482e
+#define IXP23XX_TIMER_STATUS		IXP23XX_TIMER_REG(0x20)
+#define IXP23XX_TIMER_SOFT_RESET	IXP23XX_TIMER_REG(0x24)
+#define IXP23XX_TIMER_SOFT_RESET_EN	IXP23XX_TIMER_REG(0x28)
+
+#define IXP23XX_TIMER_ENABLE		(1 << 0)
+#define IXP23XX_TIMER_ONE_SHOT		(1 << 1)
+/* Low order bits of reload value ignored */
+#define IXP23XX_TIMER_RELOAD_MASK	(0x3)
+#define IXP23XX_TIMER_DISABLED		(0x0)
+#define IXP23XX_TIMER1_INT_PEND		(1 << 0)
+#define IXP23XX_TIMER2_INT_PEND		(1 << 1)
+#define IXP23XX_TIMER_STATUS_TS_PEND	(1 << 2)
+#define IXP23XX_TIMER_STATUS_WDOG_PEND	(1 << 3)
+#define IXP23XX_TIMER_STATUS_WARM_RESET	(1 << 4)
+
+
+/****************************************************************************
+ * CAP CSRs.
+ ****************************************************************************/
+#define IXP23XX_GLOBAL_REG(x)		((volatile unsigned long *)(IXP23XX_CAP_CSR_VIRT + 0x4a00 + (x)))
+#define IXP23XX_PROD_IDG		IXP23XX_GLOBAL_REG(0x00)
+#define IXP23XX_MISC_CONTROL		IXP23XX_GLOBAL_REG(0x04)
+#define IXP23XX_MSF_CLK_CNTRL		IXP23XX_GLOBAL_REG(0x08)
+#define IXP23XX_RESET0			IXP23XX_GLOBAL_REG(0x0c)
+#define IXP23XX_RESET1			IXP23XX_GLOBAL_REG(0x10)
+#define IXP23XX_STRAP_OPTIONS		IXP23XX_GLOBAL_REG(0x18)
+
+#define IXP23XX_ENABLE_WATCHDOG		(1 << 24)
+#define IXP23XX_SHPC_INIT_COMP		(1 << 21)
+#define IXP23XX_RST_ALL			(1 << 16)
+#define IXP23XX_RESET_PCI		(1 << 2)
+#define IXP23XX_PCI_UNIT_RESET		(1 << 1)
+#define IXP23XX_XSCALE_RESET		(1 << 0)
+
+
+/****************************************************************************
+ * PCI CSRs.
+ ****************************************************************************/
+#define IXP23XX_PCI_CREG(x)		((volatile unsigned long *)(IXP23XX_PCI_CREG_VIRT + (x)))
+#define IXP23XX_PCI_CMDSTAT		IXP23XX_PCI_CREG(0x04)
+#define IXP23XX_PCI_SRAM_BAR		IXP23XX_PCI_CREG(0x14)
+#define IXP23XX_PCI_SDRAM_BAR		IXP23XX_PCI_CREG(0x18)
+
+
+#define IXP23XX_PCI_CSR(x)		((volatile unsigned long *)(IXP23XX_PCI_CREG_VIRT + 0x01000000 + (x)))
+#define IXP23XX_PCI_OUT_INT_STATUS	IXP23XX_PCI_CSR(0x0030)
+#define IXP23XX_PCI_OUT_INT_MASK	IXP23XX_PCI_CSR(0x0034)
+#define IXP23XX_PCI_SRAM_BASE_ADDR_MASK IXP23XX_PCI_CSR(0x00fc)
+#define IXP23XX_PCI_DRAM_BASE_ADDR_MASK IXP23XX_PCI_CSR(0x0100)
+#define IXP23XX_PCI_CONTROL		IXP23XX_PCI_CSR(0x013c)
+#define IXP23XX_PCI_ADDR_EXT		IXP23XX_PCI_CSR(0x0140)
+#define IXP23XX_PCI_ME_PUSH_STATUS	IXP23XX_PCI_CSR(0x0148)
+#define IXP23XX_PCI_ME_PUSH_EN		IXP23XX_PCI_CSR(0x014c)
+#define IXP23XX_PCI_ERR_STATUS		IXP23XX_PCI_CSR(0x0150)
+#define IXP23XX_PCI_ERROR_STATUS	IXP23XX_PCI_CSR(0x0150)
+#define IXP23XX_PCI_ERR_ENABLE		IXP23XX_PCI_CSR(0x0154)
+#define IXP23XX_PCI_XSCALE_INT_STATUS	IXP23XX_PCI_CSR(0x0158)
+#define IXP23XX_PCI_XSCALE_INT_ENABLE	IXP23XX_PCI_CSR(0x015c)
+#define IXP23XX_PCI_CPP_ADDR_BITS	IXP23XX_PCI_CSR(0x0160)
+
+
+#ifndef __ASSEMBLY__
+/*
+ * Is system memory on the XSI or CPP bus?
+ */
+static inline unsigned ixp23xx_cpp_boot(void)
+{
+	return (*IXP23XX_EXP_CFG0 & IXP23XX_EXP_CFG0_XSI_NOT_PRES);
+}
+#endif
+
+
+#endif

include/asm-arm/arch-ixp23xx/memory.h

+/*
+ * include/asm-arm/arch-ixp23xx/memory.h
+ *
+ * Copyright (c) 2003-2004 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.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <asm/hardware.h>
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET		(0x00000000)
+
+
+/*
+ * Virtual view <-> DMA view memory address translations
+ * virt_to_bus: Used to translate the virtual address to an
+ *		address suitable to be passed to set_dma_addr
+ * bus_to_virt: Used to convert an address for DMA operations
+ *		to an address that the kernel can use.
+ */
+#ifndef __ASSEMBLY__
+
+#define __virt_to_bus(v)						\
+	({ unsigned int ret;						\
+	ret = ((__virt_to_phys(v) - 0x00000000) +			\
+	 (*((volatile int *)IXP23XX_PCI_SDRAM_BAR) & 0xfffffff0)); 	\
+	ret; })
+
+#define __bus_to_virt(b)						\
+	({ unsigned int data;						\
+	data = *((volatile int *)IXP23XX_PCI_SDRAM_BAR);		\
+	 __phys_to_virt((((b - (data & 0xfffffff0)) + 0x00000000))); })
+
+#endif
+
+
+#endif

include/asm-arm/arch-ixp23xx/platform.h

+/*
+ * include/asm-arm/arch-ixp23xx/platform.h
+ *
+ * Various bits of code used by platform-level code.
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2005 (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.
+ */
+
+#ifndef __ASSEMBLY__
+
+struct pci_sys_data;
+
+void ixp23xx_map_io(void);
+void ixp23xx_init_irq(void);
+void ixp23xx_sys_init(void);
+int ixp23xx_pci_setup(int, struct pci_sys_data *);
+void ixp23xx_pci_preinit(void);
+struct pci_bus *ixp23xx_pci_scan_bus(int, struct pci_sys_data*);
+
+extern struct sys_timer ixp23xx_timer;
+
+#define IXP23XX_UART_XTAL		14745600
+
+
+#endif

include/asm-arm/arch-ixp23xx/system.h

+/*
+ * include/asm-arm/arch-ixp23xx/system.h
+ *
+ * Copyright (C) 2003 Intel Corporation.
+ *
+ * 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 <asm/hardware.h>
+#include <asm/mach-types.h>
+
+static inline void arch_idle(void)
+{
+#if 0
+	if (!hlt_counter)
+		cpu_do_idle();
+#endif
+}
+
+static inline void arch_reset(char mode)
+{
+	/* First try machine specific support */
+	if (machine_is_ixdp2351()) {
+		*IXDP2351_CPLD_RESET1_REG = IXDP2351_CPLD_RESET1_MAGIC;
+		(void) *IXDP2351_CPLD_RESET1_REG;
+		*IXDP2351_CPLD_RESET1_REG = IXDP2351_CPLD_RESET1_ENABLE;
+	}
+
+	/* Use on-chip reset capability */
+	*IXP23XX_RESET0 |= IXP23XX_RST_ALL;
+}

include/asm-arm/arch-ixp23xx/time.h

+/*
+ * include/asm-arm/arch-ixp23xx/time.h
+ */

include/asm-arm/arch-ixp23xx/timex.h

+/*
+ * include/asm-arm/arch-ixp23xx/timex.h
+ *
+ * XScale architecture timex specifications
+ */
+
+#define CLOCK_TICK_RATE 75000000

include/asm-arm/arch-ixp23xx/uncompress.h

+/*
+ * include/asm-arm/arch-ixp23xx/uncompress.h
+ *
+ * Copyright (C) 2002-2004 Intel Corporation.
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARCH_UNCOMPRESS_H
+#define __ASM_ARCH_UNCOMPRESS_H
+
+#include <asm/hardware.h>
+#include <linux/serial_reg.h>
+
+#define UART_BASE	((volatile u32 *)IXP23XX_UART1_PHYS)
+
+static __inline__ void putc(char c)
+{
+	int j;
+
+	for (j = 0; j < 0x1000; j++) {
+		if (UART_BASE[UART_LSR] & UART_LSR_THRE)
+			break;
+	}
+
+	UART_BASE[UART_TX] = c;
+}
+
+static void putstr(const char *s)
+{
+	while (*s) {
+		putc(*s);
+		if (*s == '\n')
+			putc('\r');
+		s++;
+	}
+}
+
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
+
+
+#endif

include/asm-arm/arch-ixp23xx/vmalloc.h

+/*
+ * include/asm-arm/arch-ixp23xx/vmalloc.h
+ *
+ * Copyright (c) 2005 MontaVista Software, Inc.
+ *
+ * NPU mappings end at 0xf0000000 and we allocate 64MB for board
+ * specific static I/O.
+ */
+
+#define VMALLOC_END	(0xec000000)