[ARM] Add IXP2000 header files (include/asm-arm/arch-ixp2000)

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>

include/asm-arm/arch-ixp2000/dma.h

+/*
+ * linux/include/asm-arm/arch-ixdp2400/dma.h
+ *
+ * Copyright (C) 2002 Intel Corp.
+ *
+ * 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_DMA_H
+#define __ASM_ARCH_DMA_H
+
+#define MAX_DMA_ADDRESS		0xffffffff
+
+/* No DMA */
+#define MAX_DMA_CHANNELS	0
+
+#endif /* _ASM_ARCH_DMA_H */

include/asm-arm/arch-ixp2000/gpio.h

+/*
+ * include/asm-arm/arch-ixp2000/ixp2000-gpio.h
+ *
+ * Copyright (C) 2002 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.
+ */
+
+/*
+ * IXP2000 GPIO in/out, edge/level detection for IRQs:
+ * IRQs are generated on Falling-edge, Rising-Edge, Level-low, Level-High
+ * or both Falling-edge and Rising-edge.  
+ * This must be called *before* the corresponding IRQ is registerd.
+ * Use this instead of directly setting the GPIO registers.
+ * GPIOs may also be used as GPIOs (e.g. for emulating i2c/smb)
+ */
+#ifndef _ASM_ARCH_IXP2000_GPIO_H_
+#define _ASM_ARCH_IXP2000_GPIO_H_
+
+#ifndef __ASSEMBLY__
+#define GPIO_OUT			0x0
+#define GPIO_IN				0x80
+
+#define IXP2000_GPIO_LOW		0
+#define IXP2000_GPIO_HIGH		1
+
+#define GPIO_NO_EDGES           	0
+#define GPIO_FALLING_EDGE       	1
+#define GPIO_RISING_EDGE        	2
+#define GPIO_BOTH_EDGES         	3
+#define GPIO_LEVEL_LOW          	4
+#define GPIO_LEVEL_HIGH         	8
+
+extern void set_GPIO_IRQ_edge(int gpio_nr, int edge);
+extern void set_GPIO_IRQ_level(int gpio_nr, int level);
+extern void gpio_line_config(int line, int style);
+
+static inline int gpio_line_get(int line)
+{
+	return (((*IXP2000_GPIO_PLR) >> line) & 1);
+}
+
+static inline void gpio_line_set(int line, int value)
+{
+	if (value == IXP2000_GPIO_HIGH) {
+		ixp_reg_write(IXP2000_GPIO_POSR, BIT(line));
+	} else if (value == IXP2000_GPIO_LOW)
+		ixp_reg_write(IXP2000_GPIO_POCR, BIT(line));
+}
+
+#endif /* !__ASSEMBLY__ */
+#endif /* ASM_ARCH_IXP2000_GPIO_H_ */
+

include/asm-arm/arch-ixp2000/hardware.h

+/*
+ * linux/include/asm-arm/arch-ixp2000/hardware.h
+ *
+ * Hardware definitions for IXP2400/2800 based systems
+ *
+ * Original Author: Naeem M Afzal <naeem.m.afzal@intel.com>
+ *
+ * Maintainer: Deepak Saxena <dsaxena@mvista.com>
+ *
+ * Copyright (C) 2001-2002 Intel Corp.
+ * 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 as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H__
+#define __ASM_ARCH_HARDWARE_H__
+
+/*
+ * This needs to be platform-specific?
+ */
+#define PCIBIOS_MIN_IO          0x00000000
+#define PCIBIOS_MIN_MEM         0x00000000
+
+#include "ixp2000-regs.h"	/* Chipset Registers */
+
+#define pcibios_assign_all_busses() 0
+
+/*
+ * Platform helper functions
+ */
+#include "platform.h"
+
+/*
+ * Platform-specific bits
+ */
+#include "ixdp2x00.h"		/* IXDP2400/2800 */
+#include "ixdp2x01.h"		/* IXDP2401/2801 */
+
+#endif  /* _ASM_ARCH_HARDWARE_H__ */

include/asm-arm/arch-ixp2000/io.h

+/*
+ * linux/include/asm-arm/arch-ixdp2000/io.h
+ *
+ * Original Author: Naeem M Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002  Intel Corp.
+ * Copyrgiht (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.
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT		0xffffffff
+#define __mem_pci(a)		((unsigned long)(a))
+
+/*
+ * Pick up VMALLOC_END
+ */
+#define ___io(p)		((unsigned long)((p)+IXP2000_PCI_IO_VIRT_BASE))
+
+/*
+ * IXP200 does not do proper byte-lane conversion for PCI addresses,
+ * so we need to override standard functions.
+ */
+#define alignb(addr)		((addr & ~3) + (3 - (addr & 3)))
+#define alignw(addr)		((addr & ~2) + (2 - (addr & 2)))
+
+#define outb(v,p)		__raw_writeb(v,alignb(___io(p)))
+#define outw(v,p)		__raw_writew((v),alignw(___io(p)))
+#define outl(v,p)		__raw_writel((v),___io(p))
+
+#define inb(p)		({ unsigned int __v = __raw_readb(alignb(___io(p))); __v; })
+#define inw(p)		\
+	({ unsigned int __v = (__raw_readw(alignw(___io(p)))); __v; })
+#define inl(p)		\
+	({ unsigned int __v = (__raw_readl(___io(p))); __v; })
+
+#define outsb(p,d,l)		__raw_writesb(alignb(___io(p)),d,l)
+#define outsw(p,d,l)		__raw_writesw(alignw(___io(p)),d,l)
+#define outsl(p,d,l)		__raw_writesl(___io(p),d,l)
+
+#define insb(p,d,l)		__raw_readsb(alignb(___io(p)),d,l)
+#define insw(p,d,l)		__raw_readsw(alignw(___io(p)),d,l)
+#define insl(p,d,l)		__raw_readsl(___io(p),d,l)
+
+
+#ifdef CONFIG_ARCH_IXDP2X01
+/*
+ * This is an ugly hack but the CS8900 on the 2x01's does not sit in any sort
+ * of "I/O space" and is just direct mapped into a 32-bit-only addressable
+ * bus. The address space for this bus is such that we can't really easilly
+ * make it contigous to the PCI I/O address range, and it also does not
+ * need swapping like PCI addresses do (IXDP2x01 is a BE platform).
+ * B/C of this we can't use the standard in/out functions and need to
+ * runtime check if the incoming address is a PCI address or for
+ * the CS89x0.
+ */
+#undef inw
+#undef outw
+#undef insw
+#undef outsw
+
+static inline void insw(u32 ptr, void *buf, int length)
+{
+	register volatile u32 *port = (volatile u32 *)ptr;
+
+	/*
+	 * Is this cycle meant for the CS8900?
+	 */
+	if (machine_is_ixdp2x01() && 
+		((port >= IXDP2X01_CS8900_VIRT_BASE) && 
+		 (port <= IXDP2X01_CS8900_VIRT_END))) {
+		u8 *buf8 = (u8*)buf;
+		register u32 tmp32;
+
+		do {
+			tmp32 = *port;
+			*buf8++ = (u8)tmp32;
+			*buf8++ = (u8)(tmp32 >> 8);
+		} while(--length);
+
+		return;
+	}
+
+	__raw_readsw(alignw(___io(ptr)),buf,length);
+}
+
+static inline void outsw(u32 ptr, void *buf, int length)
+{
+	register volatile u32 *port = (volatile u32 *)ptr;
+
+	/*
+	 * Is this cycle meant for the CS8900?
+	 */
+	if (machine_is_ixdp2x01() && 
+		((port >= IXDP2X01_CS8900_VIRT_BASE) && 
+		 (port <= IXDP2X01_CS8900_VIRT_END))) {
+		register u32 tmp32;
+		u8 *buf8 = (u8*)buf;
+		do {
+			tmp32 = *buf8++;
+			tmp32 |= (*buf8++) << 8;
+			*port = tmp32;
+		} while(--length);
+		return;
+	}
+
+	__raw_writesw(alignw(___io(ptr)),buf,length);
+}
+
+
+static inline u16 inw(u32 ptr)
+{
+	register volatile u32 *port = (volatile u32 *)ptr;
+
+	/*
+	 * Is this cycle meant for the CS8900?
+	 */
+	if (machine_is_ixdp2x01() && 
+		((port >= IXDP2X01_CS8900_VIRT_BASE) && 
+		 (port <= IXDP2X01_CS8900_VIRT_END))) {
+		return (u16)(*port);  
+	}
+
+	return __raw_readw(alignw(___io(ptr)));
+}
+
+static inline void outw(u16 value, u32 ptr)
+{
+	register volatile u32 *port = (volatile u32 *)ptr;
+
+	if (machine_is_ixdp2x01() && 
+		((port >= IXDP2X01_CS8900_VIRT_BASE) && 
+		 (port <= IXDP2X01_CS8900_VIRT_END))) {
+		*port = value;  
+		return;
+	}
+
+	__raw_writew((value),alignw(___io(ptr)));
+}
+#endif	/* IXDP2x01 */
+
+#endif

include/asm-arm/arch-ixp2000/irq.h

+/*
+ *  linux/include/asm-arm/arch-ixp2000/irq.h
+ *
+ *  Copyright (C) 2002 Intel Corp.
+ *
+ * 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.
+ */
+
+#define fixup_irq(irq)  (irq)
+
+

include/asm-arm/arch-ixp2000/irqs.h

+/*
+ * linux/include/asm-arm/arch-ixp2000/irqs.h
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * 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.
+ */
+
+#ifndef _IRQS_H
+#define _IRQS_H
+
+/*
+ * Do NOT add #ifdef MACHINE_FOO in here.
+ * Simpy add your machine IRQs here and increase NR_IRQS if needed to
+ * hold your machine's IRQ table.
+ */
+
+/*
+ * Some interrupt numbers go unused b/c the IRQ mask/ummask/status
+ * register has those bit reserved. We just mark those interrupts
+ * as invalid and this allows us to do mask/unmask with a single
+ * shift operation instead of having to map the IRQ number to
+ * a HW IRQ number.
+ */
+#define	IRQ_IXP2000_SWI			0 /* soft interrupt */
+#define	IRQ_IXP2000_ERRSUM		1 /* OR of all bits in ErrorStatus reg*/
+#define	IRQ_IXP2000_UART		2
+#define	IRQ_IXP2000_GPIO		3
+#define	IRQ_IXP2000_TIMER1     		4
+#define	IRQ_IXP2000_TIMER2     		5
+#define	IRQ_IXP2000_TIMER3     		6
+#define	IRQ_IXP2000_TIMER4     		7
+#define	IRQ_IXP2000_PMU        		8               
+#define	IRQ_IXP2000_SPF        		9  /* Slow port framer IRQ */
+#define	IRQ_IXP2000_DMA1      		10
+#define	IRQ_IXP2000_DMA2      		11
+#define	IRQ_IXP2000_DMA3      		12
+#define	IRQ_IXP2000_PCI_DOORBELL	13
+#define	IRQ_IXP2000_ME_ATTN       	14 
+#define	IRQ_IXP2000_PCI   		15 /* PCI INTA or INTB */
+#define	IRQ_IXP2000_THDA0   		16 /* thread 0-31A */
+#define	IRQ_IXP2000_THDA1  		17 /* thread 32-63A */
+#define	IRQ_IXP2000_THDA2		18 /* thread 64-95A */
+#define	IRQ_IXP2000_THDA3 		19 /* thread 96-127A */
+#define	IRQ_IXP2000_THDB0		24 /* thread 0-31 B */
+#define	IRQ_IXP2000_THDB1		25 /* thread 32-63B */
+/* only 64 threads supported for IXP2400, rest or for IXP2800*/
+#define	IRQ_IXP2000_THDB2		26 /* thread 64-95B */
+#define	IRQ_IXP2000_THDB3		27 /* thread 96-127B */
+
+/* define generic GPIOs */
+#define IRQ_IXP2000_GPIO0		32
+#define IRQ_IXP2000_GPIO1		33
+#define IRQ_IXP2000_GPIO2		34
+#define IRQ_IXP2000_GPIO3		35
+#define IRQ_IXP2000_GPIO4		36
+#define IRQ_IXP2000_GPIO5		37
+#define IRQ_IXP2000_GPIO6		38
+#define IRQ_IXP2000_GPIO7		39
+
+/* split off the 2 PCI sources */
+#define IRQ_IXP2000_PCIA		40
+#define IRQ_IXP2000_PCIB		41
+
+/* Int sources from IRQ_ERROR_STATUS */
+#define IRQ_IXP2000_DRAM0_MIN_ERR	42
+#define IRQ_IXP2000_DRAM0_MAJ_ERR	43
+#define IRQ_IXP2000_DRAM1_MIN_ERR	44
+#define IRQ_IXP2000_DRAM1_MAJ_ERR	45
+#define IRQ_IXP2000_DRAM2_MIN_ERR	46
+#define IRQ_IXP2000_DRAM2_MAJ_ERR	47
+#define IRQ_IXP2000_SRAM0_ERR		48
+#define IRQ_IXP2000_SRAM1_ERR		49
+#define IRQ_IXP2000_SRAM2_ERR           50
+#define IRQ_IXP2000_SRAM3_ERR		51
+#define IRQ_IXP2000_MEDIA_ERR		52
+#define IRQ_IXP2000_PCI_ERR		53
+#define IRQ_IXP2000_SP_INT		54
+
+#define NR_IXP2000_IRQS                 55
+
+#define	IXP2000_BOARD_IRQ(x)		(NR_IXP2000_IRQS + (x))
+
+#define	IXP2000_BOARD_IRQ_MASK(irq)	(1 << (irq - NR_IXP2000_IRQS))	
+
+/*
+ * This allows for all the on-chip sources plus up to 32 CPLD based
+ * IRQs. Should be more then enough.
+ */
+#define	IXP2000_BOARD_IRQS		32
+#define NR_IRQS				(NR_IXP2000_IRQS + IXP2000_BOARD_IRQS)
+
+
+/* 
+ * IXDP2400 specific IRQs
+ */
+#define	IRQ_IXDP2400_INGRESS_NPU	IXP2000_BOARD_IRQ(0) 
+#define	IRQ_IXDP2400_ENET		IXP2000_BOARD_IRQ(1) 
+#define	IRQ_IXDP2400_MEDIA_PCI		IXP2000_BOARD_IRQ(2) 
+#define	IRQ_IXDP2400_MEDIA_SP		IXP2000_BOARD_IRQ(3) 
+#define	IRQ_IXDP2400_SF_PCI		IXP2000_BOARD_IRQ(4) 
+#define	IRQ_IXDP2400_SF_SP		IXP2000_BOARD_IRQ(5) 
+#define	IRQ_IXDP2400_PMC		IXP2000_BOARD_IRQ(6) 
+#define	IRQ_IXDP2400_TVM		IXP2000_BOARD_IRQ(7) 
+
+#define	NR_IXDP2400_IRQS		((IRQ_IXDP2400_TVM)+1)  
+#define	IXDP2400_NR_IRQS		NR_IXDP2400_IRQS - NR_IXP2000_IRQS
+
+/* IXDP2800 specific IRQs */
+#define IRQ_IXDP2800_EGRESS_ENET	IXP2000_BOARD_IRQ(0)
+#define IRQ_IXDP2800_INGRESS_NPU	IXP2000_BOARD_IRQ(1)
+#define IRQ_IXDP2800_PMC		IXP2000_BOARD_IRQ(2)
+#define IRQ_IXDP2800_FABRIC_PCI		IXP2000_BOARD_IRQ(3)
+#define IRQ_IXDP2800_FABRIC		IXP2000_BOARD_IRQ(4)
+#define IRQ_IXDP2800_MEDIA		IXP2000_BOARD_IRQ(5)
+
+#define	NR_IXDP2800_IRQS		((IRQ_IXDP2800_MEDIA)+1)
+#define	IXDP2800_NR_IRQS		NR_IXDP2800_IRQS - NR_IXP2000_IRQS
+
+/* 
+ * IRQs on both IXDP2x01 boards
+ */
+#define IRQ_IXDP2X01_SPCI_DB_0		IXP2000_BOARD_IRQ(2)
+#define IRQ_IXDP2X01_SPCI_DB_1		IXP2000_BOARD_IRQ(3)
+#define IRQ_IXDP2X01_SPCI_PMC_INTA	IXP2000_BOARD_IRQ(4)
+#define IRQ_IXDP2X01_SPCI_PMC_INTB	IXP2000_BOARD_IRQ(5)
+#define IRQ_IXDP2X01_SPCI_PMC_INTC	IXP2000_BOARD_IRQ(6)
+#define IRQ_IXDP2X01_SPCI_PMC_INTD	IXP2000_BOARD_IRQ(7)
+#define IRQ_IXDP2X01_SPCI_FIC_INT	IXP2000_BOARD_IRQ(8)
+#define IRQ_IXDP2X01_IPMI_FROM		IXP2000_BOARD_IRQ(16)
+#define IRQ_IXDP2X01_125US		IXP2000_BOARD_IRQ(17)
+#define IRQ_IXDP2X01_DB_0_ADD		IXP2000_BOARD_IRQ(18)
+#define IRQ_IXDP2X01_DB_1_ADD		IXP2000_BOARD_IRQ(19)
+#define IRQ_IXDP2X01_UART1		IXP2000_BOARD_IRQ(21)
+#define IRQ_IXDP2X01_UART2		IXP2000_BOARD_IRQ(22)
+#define IRQ_IXDP2X01_FIC_ADD_INT	IXP2000_BOARD_IRQ(24)
+#define IRQ_IXDP2X01_CS8900		IXP2000_BOARD_IRQ(25)
+#define IRQ_IXDP2X01_BBSRAM		IXP2000_BOARD_IRQ(26)
+
+#define IXDP2X01_VALID_IRQ_MASK ( \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_DB_0) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_DB_1) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_PMC_INTA) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_PMC_INTB) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_PMC_INTC) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_PMC_INTD) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_FIC_INT) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_IPMI_FROM) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_125US) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_DB_0_ADD) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_DB_1_ADD) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_UART1) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_UART2) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_FIC_ADD_INT) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_CS8900) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_BBSRAM) )
+
+/* 
+ * IXDP2401 specific IRQs
+ */
+#define IRQ_IXDP2401_INTA_82546		IXP2000_BOARD_IRQ(0)
+#define IRQ_IXDP2401_INTB_82546		IXP2000_BOARD_IRQ(1)
+
+#define	IXDP2401_VALID_IRQ_MASK ( \
+		IXDP2X01_VALID_IRQ_MASK | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2401_INTA_82546) |\
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2401_INTB_82546))
+
+/*
+ * IXDP2801-specific IRQs
+ */
+#define IRQ_IXDP2801_RIV		IXP2000_BOARD_IRQ(0)
+#define IRQ_IXDP2801_CNFG_MEDIA		IXP2000_BOARD_IRQ(27)
+#define IRQ_IXDP2801_CLOCK_REF		IXP2000_BOARD_IRQ(28)
+
+#define	IXDP2801_VALID_IRQ_MASK ( \
+		IXDP2X01_VALID_IRQ_MASK | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2801_RIV) |\
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2801_CNFG_MEDIA) |\
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2801_CLOCK_REF))
+
+#define	NR_IXDP2X01_IRQS		((IRQ_IXDP2801_CLOCK_REF) + 1)
+
+#endif /*_IRQS_H*/

include/asm-arm/arch-ixp2000/ixdp2x00.h

+/*
+ * inclue/asm-arm/arch-ixp2000/ixmb2x00.h
+ *
+ * Register and other defines for IXDP2[48]00 platforms
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * 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 as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ */
+#ifndef _IXDP2X00_H_
+#define _IXDP2X00_H_
+
+/*
+ * On board CPLD memory map
+ */
+#define IXDP2X00_PHYS_CPLD_BASE		0xc7000000
+#define IXDP2X00_VIRT_CPLD_BASE		0xfefdd000
+#define IXDP2X00_CPLD_SIZE		0x00001000
+
+
+#define IXDP2X00_CPLD_REG(x)  	\
+	(volatile unsigned long *)(IXDP2X00_VIRT_CPLD_BASE | x)
+
+/*
+ * IXDP2400 CPLD registers
+ */
+#define IXDP2400_CPLD_SYSLED		IXDP2X00_CPLD_REG(0x0)  
+#define IXDP2400_CPLD_DISP_DATA		IXDP2X00_CPLD_REG(0x4)
+#define IXDP2400_CPLD_CLOCK_SPEED	IXDP2X00_CPLD_REG(0x8)
+#define IXDP2400_CPLD_INT_STAT		IXDP2X00_CPLD_REG(0xc)
+#define IXDP2400_CPLD_REV		IXDP2X00_CPLD_REG(0x10)
+#define IXDP2400_CPLD_SYS_CLK_M		IXDP2X00_CPLD_REG(0x14)
+#define IXDP2400_CPLD_SYS_CLK_N		IXDP2X00_CPLD_REG(0x18)
+#define IXDP2400_CPLD_INT_MASK		IXDP2X00_CPLD_REG(0x48)
+
+/*
+ * IXDP2800 CPLD registers
+ */
+#define IXDP2800_CPLD_INT_STAT		IXDP2X00_CPLD_REG(0x0)
+#define IXDP2800_CPLD_INT_MASK		IXDP2X00_CPLD_REG(0x140)
+
+
+#define	IXDP2X00_GPIO_I2C_ENABLE	0x02
+#define	IXDP2X00_GPIO_SCL		0x07
+#define	IXDP2X00_GPIO_SDA		0x06
+
+/*
+ * PCI devfns for on-board devices. We need these to be able to
+ * properly translte IRQs and for device removal.
+ */
+#define	IXDP2400_SLAVE_ENET_DEVFN	0x18	/* Bus 1 */
+#define	IXDP2400_MASTER_ENET_DEVFN	0x20	/* Bus 1 */
+#define	IXDP2400_MEDIA_DEVFN		0x28	/* Bus 1 */
+#define	IXDP2400_SWITCH_FABRIC_DEVFN	0x30	/* Bus 1 */
+
+#define	IXDP2800_SLAVE_ENET_DEVFN	0x20	/* Bus 1 */
+#define	IXDP2800_MASTER_ENET_DEVFN	0x18	/* Bus 1 */
+#define	IXDP2800_SWITCH_FABRIC_DEVFN	0x30	/* Bus 1 */
+
+#define	IXDP2X00_P2P_DEVFN		0x20	/* Bus 0 */
+#define	IXDP2X00_21555_DEVFN		0x30	/* Bus 0 */
+#define IXDP2X00_SLAVE_NPU_DEVFN	0x28	/* Bus 1 */
+#define	IXDP2X00_PMC_DEVFN		0x38	/* Bus 1 */
+#define IXDP2X00_MASTER_NPU_DEVFN	0x38	/* Bus 1 */
+
+#ifndef __ASSEMBLY__
+/*
+ * Master NPU will always have flash and be PCI master.
+ * Slave NPU may or may not have flash but will never be PCI master.
+ */
+static inline unsigned int ixdp2x00_master_npu(void)
+{
+	return ((ixp2000_has_flash()) && (ixp2000_is_pcimaster()));
+}
+
+/*
+ * Helper functions used by ixdp2400 and ixdp2800 specific code
+ */
+void ixdp2x00_init_irq(volatile unsigned long*, volatile unsigned long *, unsigned long);
+void ixdp2x00_slave_pci_postinit(void);
+void ixdp2x00_init_machine(void);
+void ixdp2x00_map_io(void);
+
+#endif
+
+#endif /*_IXDP2X00_H_ */

include/asm-arm/arch-ixp2000/ixdp2x01.h

+/*
+ * include/asm/arch/ixdp2x01.h
+ *
+ * Platform definitions for IXDP2X01 && IXDP2801 systems
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2004 (c) MontaVista Software, Inc. 
+ *
+ * Based on original code Copyright (c) 2002-2003 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.
+ */
+
+#ifndef __IXDP2X01_H__
+#define __IXDP2X01_H__
+
+#define	IXDP2X01_PHYS_CPLD_BASE		0xc6024000
+#define	IXDP2X01_VIRT_CPLD_BASE		0xfefdd000
+#define	IXDP2X01_CPLD_REGION_SIZE	0x1000
+
+#define IXDP2X01_CPLD_VIRT_REG(reg) (volatile u32*)(IXDP2X01_VIRT_CPLD_BASE | reg)
+#define IXDP2X01_CPLD_PHYS_REG(reg) (volatile u32*)(IXDP2X01_PHYS_CPLD_BASE | reg)
+
+#define IXDP2X01_UART1_VIRT_BASE	IXDP2X01_CPLD_VIRT_REG(0x40)
+#define IXDP2X01_UART1_PHYS_BASE	IXDP2X01_CPLD_PHYS_REG(0x40)
+
+#define IXDP2X01_UART2_VIRT_BASE	IXDP2X01_CPLD_VIRT_REG(0x60)
+#define IXDP2X01_UART2_PHYS_BASE	IXDP2X01_CPLD_PHYS_REG(0x60)
+
+#define IXDP2X01_CS8900_VIRT_BASE	IXDP2X01_CPLD_VIRT_REG(0x80)
+#define IXDP2X01_CS8900_VIRT_END	(IXDP2X01_CS8900_VIRT_BASE + 16)
+
+#define IXDP2X01_CPLD_RESET_REG         IXDP2X01_CPLD_VIRT_REG(0x00)
+#define IXDP2X01_INT_MASK_SET_REG	IXDP2X01_CPLD_VIRT_REG(0x08)
+#define IXDP2X01_INT_STAT_REG		IXDP2X01_CPLD_VIRT_REG(0x0C)
+#define IXDP2X01_INT_RAW_REG		IXDP2X01_CPLD_VIRT_REG(0x10) 
+#define IXDP2X01_INT_MASK_CLR_REG	IXDP2X01_INT_RAW_REG
+#define IXDP2X01_INT_SIM_REG		IXDP2X01_CPLD_VIRT_REG(0x14)
+
+#define IXDP2X01_CPLD_FLASH_REG		IXDP2X01_CPLD_VIRT_REG(0x20)
+
+#define IXDP2X01_CPLD_FLASH_INTERN 	0x8000
+#define IXDP2X01_CPLD_FLASH_BANK_MASK 	0xF
+#define IXDP2X01_FLASH_WINDOW_BITS 	25
+#define IXDP2X01_FLASH_WINDOW_SIZE 	(1 << IXDP2X01_FLASH_WINDOW_BITS)
+#define IXDP2X01_FLASH_WINDOW_MASK 	(IXDP2X01_FLASH_WINDOW_SIZE - 1)
+
+#define	IXDP2X01_UART_CLK		1843200
+
+#ifndef __ASSEMBLY__
+#include <asm/mach-types.h>
+#define	machine_is_ixdp2x01() 		(machine_is_ixdp2401() || \
+					 machine_is_ixdp2801())
+#endif
+
+#endif /* __IXDP2x01_H__ */

include/asm-arm/arch-ixp2000/memory.h

+/*
+ * linux/include/asm-arm/arch-ixp2000/memory.h
+ *
+ * Copyright (c) 2002 Intel Corp.
+ * 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 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
+
+#define PHYS_OFFSET	(0x00000000UL)
+
+/*
+ * 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.
+ */
+#include <asm/arch/ixp2000-regs.h>
+
+#define __virt_to_bus(v) \
+	(((__virt_to_phys(v) - 0x0) + (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)))
+
+#define __bus_to_virt(b) \
+	__phys_to_virt((((b - (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)) + 0x0)))
+
+#endif
+

include/asm-arm/arch-ixp2000/platform.h

+/*
+ * include/asm-arh/arch-ixp2000/platform.h
+ *
+ * Various bits of code used by platform-level code.
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 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.
+ */
+
+
+#ifndef __ASSEMBLY__
+
+/*
+ * The IXP2400B0 silicon contains an errata that causes writes to 
+ * on-chip I/O register to not complete fully. What this means is
+ * that if you have a write to on-chip I/O followed by a back-to-back
+ * read or write, the first write will happend twice. OR...if it's
+ * not a back-to-back trasaction, the read or write will generate 
+ * incorrect data.
+ *
+ * The official work around for this is to set the on-chip I/O regions
+ * as XCB=101 and then force a read-back from the register.
+ *
+ */
+#if defined(CONFIG_ARCH_IXDP2400) || defined(CONFIG_ARCH_IXDP2401)
+
+#include <asm/system.h>		/* Pickup local_irq_ functions */
+
+static inline void ixp2000_reg_write(volatile unsigned long *reg, unsigned long val)
+{
+	volatile unsigned long dummy;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	*reg = val;
+	__asm__ __volatile__("":::"memory");
+	dummy = *reg;
+	local_irq_restore(flags);
+}
+#else
+#define	ixp2000_reg_write(reg, val) (*reg = val)
+#endif	/* IXDP2400 || IXDP2401 */
+
+/*
+ * Boards may multiplex different devices on the 2nd channel of 
+ * the slowport interface that each need different configuration 
+ * settings.  For example, the IXDP2400 uses channel 2 on the interface 
+ * to access the CPLD, the switch fabric card, and te media card.  Each 
+ * one needs a different mode so drivers must save/restore the mode 
+ * before and after each operation.  
+ *
+ * acquire_slowport(&your_config);
+ * ...
+ * do slowport operations
+ * ...
+ * release_slowport();
+ *
+ * Note that while you have the slowport, you are holding a spinlock,
+ * so your code should be written as if you explicitly acquired a lock.
+ *
+ * The configuration only affects device 2 on the slowport, so the
+ * MTD map driver does not acquire/release the slowport.  
+ */
+struct slowport_cfg {
+	unsigned long CCR;	/* Clock divide */
+	unsigned long WTC;	/* Write Timing Control */
+	unsigned long RTC;	/* Read Timing Control */
+	unsigned long PCR;	/* Protocol Control Register */
+	unsigned long ADC;	/* Address/Data Width Control */
+};
+
+
+void ixp2000_acquire_slowport(struct slowport_cfg *, struct slowport_cfg *);
+void ixp2000_release_slowport(struct slowport_cfg *);
+
+/*
+ * IXP2400 A0/A1 and  IXP2800 A0/A1/A2 have broken slowport that requires
+ * tweaking of addresses in the MTD driver.
+ */
+static inline unsigned ixp2000_has_broken_slowport(void)
+{
+	unsigned long id = *IXP2000_PROD_ID;
+	unsigned long id_prod = id & (IXP2000_MAJ_PROD_TYPE_MASK |
+				      IXP2000_MIN_PROD_TYPE_MASK);
+	return (((id_prod ==
+		  /* fixed in IXP2400-B0 */
+		  (IXP2000_MAJ_PROD_TYPE_IXP2000 |
+		   IXP2000_MIN_PROD_TYPE_IXP2400)) &&
+		 ((id & IXP2000_MAJ_REV_MASK) == 0)) ||
+		((id_prod ==
+		  /* fixed in IXP2800-B0 */
+		  (IXP2000_MAJ_PROD_TYPE_IXP2000 |
+		   IXP2000_MIN_PROD_TYPE_IXP2800)) &&
+		 ((id & IXP2000_MAJ_REV_MASK) == 0)) ||
+		((id_prod ==
+		  /* fixed in IXP2850-B0 */
+		  (IXP2000_MAJ_PROD_TYPE_IXP2000 |
+		   IXP2000_MIN_PROD_TYPE_IXP2850)) &&
+		 ((id & IXP2000_MAJ_REV_MASK) == 0)));
+}
+
+static inline unsigned int ixp2000_has_flash(void)
+{
+	return ((*IXP2000_STRAP_OPTIONS) & (CFG_BOOT_PROM));
+}
+
+static inline unsigned int ixp2000_is_pcimaster(void)
+{
+	return ((*IXP2000_STRAP_OPTIONS) & (CFG_PCI_BOOT_HOST));
+}
+
+void ixp2000_map_io(void);
+void ixp2000_init_irq(void);
+void ixp2000_init_time(unsigned long);
+
+struct pci_sys_data;
+
+void ixp2000_pci_preinit(void);
+int ixp2000_pci_setup(int, struct pci_sys_data*);
+struct pci_bus* ixp2000_pci_scan_bus(int, struct pci_sys_data*);
+int ixp2000_pci_read_config(struct pci_bus*, unsigned int, int, int, u32 *);
+int ixp2000_pci_write_config(struct pci_bus*, unsigned int, int, int, u32);
+
+/*
+ * Several of the IXP2000 systems have banked flash so we need to extend the
+ * flash_platform_data structure with some private pointers
+ */
+struct ixp2000_flash_data {
+	struct flash_platform_data *platform_data;
+	int nr_banks;
+	unsigned long (*bank_setup)(unsigned long);
+};
+
+/*
+ * GPIO helper functions
+ */
+#define	GPIO_IN		0
+#define	GPIO_OUT	1
+
+extern void gpio_line_config(int line, int style);
+
+static inline int gpio_line_get(int line)
+{
+	return (((*IXP2000_GPIO_PLR) >> line) & 1);
+}
+
+static inline void gpio_line_set(int line, int value)
+{
+	if (value) 
+		ixp2000_reg_write(IXP2000_GPIO_POSR, (1 << line));
+	else 
+		ixp2000_reg_write(IXP2000_GPIO_POCR, (1 << line));
+}
+
+struct ixp2000_i2c_pins {
+	unsigned long sda_pin;
+	unsigned long scl_pin;
+};
+
+#endif /*  !__ASSEMBLY__ */

include/asm-arm/arch-ixp2000/serial.h

+/*
+ * include/asm-arm/arch-ixp2000/serial.h
+ *
+ * Serial port defn for ixp2000 based systems.
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (c) 2002-2004 MontaVista Software, Inc.
+ *
+ * We do not register serial ports staticly b/c there is no easy way
+ * to autodetect an XScale port. Instead we register them at runtime
+ * via early_serial_init().
+ */
+
+#ifndef _ARCH_SERIAL_H_
+#define _ARCH_SERIAL_H_
+
+#define BASE_BAUD (50000000/ 16)
+
+/*
+ * Currently no IXP2000 systems with > 3 serial ports.
+ * If you add a system that does, just up this.
+ */
+#define	STD_SERIAL_PORT_DEFNS
+#define	EXTRA_SERIAL_PORT_DEFNS
+
+#endif  // __ARCH_SERIAL_H_

include/asm-arm/arch-ixp2000/system.h

+/*
+ * linux/include/asm-arm/arch-ixp2400/system.h
+ *
+ * Copyright (C) 2002 Intel Corp.
+ *
+ * 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
+	while (!current->need_resched && !hlt_counter) {
+		cpu_do_idle(IDLE_CLOCK_SLOW);
+		cpu_do_idle(IDLE_WAIT_FAST);
+		cpu_do_idle(IDLE_CLOCK_FAST);
+	}
+#endif
+}
+
+
+static inline void arch_reset(char mode)
+{
+	cli();
+
+	if (machine_is_ixdp2401() || machine_is_ixdp2801()) {
+		*IXDP2X01_CPLD_FLASH_REG = ((0 >> IXDP2X01_FLASH_WINDOW_BITS) | IXDP2X01_CPLD_FLASH_INTERN);
+		*IXDP2X01_CPLD_RESET_REG = 0xffffffff;
+	}
+
+	/*
+	 * We do a reset all if we are PCI master. We could be a slave and we
+	 * don't want to do anything funky on the PCI bus.
+	 */
+	if (*IXP2000_STRAP_OPTIONS & CFG_PCI_BOOT_HOST) {
+		*(IXP2000_RESET0) |= (RSTALL);
+	}
+
+
+	
+}

include/asm-arm/arch-ixp2000/timex.h

+/*
+ * linux/include/asm-arm/arch-ixp2000/timex.h
+ *
+ * IXP2000 architecture timex specifications
+ */
+
+
+/*
+ * Default clock is 50MHz APB, but platform code can override this
+ */
+#define CLOCK_TICK_RATE	50000000
+
+

include/asm-arm/arch-ixp2000/uncompress.h

+/*
+ * linux/include/asm-arm/arch-ixp2000/uncompress.h
+ *
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2002 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/serial_reg.h>
+
+#define UART_BASE	0xc0030000
+
+#define PHYS(x)          ((volatile unsigned long *)(UART_BASE + x))
+
+#define UARTDR          PHYS(0x00)      /* Transmit reg dlab=0 */
+#define UARTDLL         PHYS(0x00)      /* Divisor Latch reg dlab=1*/
+#define UARTDLM         PHYS(0x04)      /* Divisor Latch reg dlab=1*/
+#define UARTIER         PHYS(0x04)      /* Interrupt enable reg */
+#define UARTFCR         PHYS(0x08)      /* FIFO control reg dlab =0*/
+#define UARTLCR         PHYS(0x0c)      /* Control reg */
+#define UARTSR          PHYS(0x14)      /* Status reg */
+
+
+static __inline__ void putc(char c)
+{
+	int j = 0x1000;
+
+	while (--j && !(*UARTSR & UART_LSR_THRE)); 
+	*UARTDR = c;
+}
+
+static void puts(const char *s)
+{
+	while (*s)
+	{
+		putc(*s);
+		if (*s == '\n')
+			putc('\r');
+		s++;
+	}
+}
+
+#define arch_decomp_setup()
+#define arch_decomp_wdog()

include/asm-arm/arch-ixp2000/vmalloc.h

+/*
+ * linux/include/asm-arm/arch-ixp2000/vmalloc.h
+ *
+ * Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ *
+ * Copyright 2002 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.
+ *
+ * Just any arbitrary offset to the start of the vmalloc VM area: the
+ * current 8MB value just means that there will be a 8MB "hole" after the
+ * physical memory until the kernel virtual memory starts.  That means that
+ * any out-of-bounds memory accesses will hopefully be caught.
+ * The vmalloc() routines leaves a hole of 4kB between each vmalloced
+ * area for the same reason. ;)
+ */
+#define VMALLOC_OFFSET	    (8*1024*1024)
+#define VMALLOC_START	    (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
+#define VMALLOC_VMADDR(x)   ((unsigned long)(x))
+#define VMALLOC_END	    0xfb000000