ARM: remove ixp23xx and ixp2000 platforms

ixp2xxx platforms have had no real changes since ~2006 and the maintainer
has said on irc that they can be removed:

13:05 < nico> do you still care about ixp2000?
13:22 < lennert> not really, no
13:58 < nico> do you think we could remove it from the kernel tree?
14:01 < lennert> go for it, and remove ixp23xx too while you're at it

Removing will help simplify ARM consolidation in general and PCI re-work
specifically.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>

1 files changed, 0 insertions, 252 deletions

diff --git a/arch/arm/mach-ixp2000/pci.c b/arch/arm/mach-ixp2000/pci.c
deleted file mode 100644
index 9c02de932fac..000000000000
--- a/arch/arm/mach-ixp2000/pci.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
- * arch/arm/mach-ixp2000/pci.c
- *
- * PCI routines for IXDP2400/IXDP2800 boards
- *
- * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
- * Maintained by: Deepak Saxena <dsaxena@plexity.net>
- *
- * Copyright 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.
- */
-
-#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/delay.h>
-#include <linux/io.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-
-#include <asm/mach/pci.h>
-
-static volatile int pci_master_aborts = 0;
-
-static int clear_master_aborts(void);
-
-u32 *
-ixp2000_pci_config_addr(unsigned int bus_nr, unsigned int devfn, int where)
-{
-	u32 *paddress;
-
-	if (PCI_SLOT(devfn) > 7)
-		return 0;
-
-	/* Must be dword aligned */
-	where &= ~3;
-
-	/*
-	 * For top bus, generate type 0, else type 1
-	 */
-	if (!bus_nr) {
-		/* only bits[23:16] are used for IDSEL */
-		paddress = (u32 *) (IXP2000_PCI_CFG0_VIRT_BASE
-				    | (1 << (PCI_SLOT(devfn) + 16))
-				    | (PCI_FUNC(devfn) << 8) | where);
-	} else {
-		paddress = (u32 *) (IXP2000_PCI_CFG1_VIRT_BASE 
-				    | (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,
-};
-
-
-int ixp2000_pci_read_config(struct pci_bus *bus, unsigned int devfn, int where,
-				int size, u32 *value)
-{
-	u32 n;
-	u32 *addr;
-
-	n = where % 4;
-
-	addr = ixp2000_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 checks by calling clear_master_aborts() b/c the
- * assumption is that the caller did a read first to make sure a device
- * exists.
- */
-int ixp2000_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 = ixp2000_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;
-}
-
-
-static struct pci_ops ixp2000_pci_ops = {
-	.read	= ixp2000_pci_read_config,
-	.write	= ixp2000_pci_write_config
-};
-
-struct pci_bus *ixp2000_pci_scan_bus(int nr, struct pci_sys_data *sysdata)
-{
-	return pci_scan_root_bus(NULL, sysdata->busnr, &ixp2000_pci_ops,
-				 sysdata, &sysdata->resources);
-}
-
-
-int ixp2000_pci_abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
-{
-
-	volatile u32 temp;
-	unsigned long flags;
-
-	pci_master_aborts = 1;
-
-	local_irq_save(flags);
-	temp = *(IXP2000_PCI_CONTROL);
-	if (temp & ((1 << 8) | (1 << 5))) {
-		ixp2000_reg_wrb(IXP2000_PCI_CONTROL, temp);
-	}
-
-	temp = *(IXP2000_PCI_CMDSTAT);
-	if (temp & (1 << 29)) {
-		while (temp & (1 << 29)) {	
-			ixp2000_reg_write(IXP2000_PCI_CMDSTAT, temp);
-			temp = *(IXP2000_PCI_CMDSTAT);
-		}
-	}
-	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;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	temp = *(IXP2000_PCI_CONTROL);
-	if (temp & ((1 << 8) | (1 << 5))) {
-		ixp2000_reg_wrb(IXP2000_PCI_CONTROL, temp);
-	}
-
-	temp = *(IXP2000_PCI_CMDSTAT);
-	if (temp & (1 << 29)) {
-		while (temp & (1 << 29)) {
-			ixp2000_reg_write(IXP2000_PCI_CMDSTAT, temp);
-			temp = *(IXP2000_PCI_CMDSTAT);
-		}
-	}
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-void __init
-ixp2000_pci_preinit(void)
-{
-	pci_set_flags(0);
-
-	pcibios_min_io = 0;
-	pcibios_min_mem = 0;
-
-#ifndef CONFIG_IXP2000_SUPPORT_BROKEN_PCI_IO
-	/*
-	 * Configure the PCI unit to properly byteswap I/O transactions,
-	 * and verify that it worked.
-	 */
-	ixp2000_reg_write(IXP2000_PCI_CONTROL,
-			  (*IXP2000_PCI_CONTROL | PCI_CONTROL_IEE));
-
-	if ((*IXP2000_PCI_CONTROL & PCI_CONTROL_IEE) == 0)
-		panic("IXP2000: PCI I/O is broken on this ixp model, and "
-			"the needed workaround has not been configured in");
-#endif
-
-	hook_fault_code(16+6, ixp2000_pci_abort_handler, SIGBUS, 0,
-				"PCI config cycle to non-existent device");
-}
-
-
-/*
- * IXP2000 systems often have large resource requirements, so we just
- * use our own resource space.
- */
-static struct resource ixp2000_pci_mem_space = {
-	.start	= 0xe0000000,
-	.end	= 0xffffffff,
-	.flags	= IORESOURCE_MEM,
-	.name	= "PCI Mem Space"
-};
-
-static struct resource ixp2000_pci_io_space = {
-	.start	= 0x00010000,
-	.end	= 0x0001ffff,
-	.flags	= IORESOURCE_IO,
-	.name	= "PCI I/O Space"
-};
-
-int ixp2000_pci_setup(int nr, struct pci_sys_data *sys)
-{
-	if (nr >= 1)
-		return 0;
-
-	pci_add_resource_offset(&sys->resources,
-				&ixp2000_pci_io_space, sys->io_offset);
-	pci_add_resource_offset(&sys->resources,
-				&ixp2000_pci_mem_space, sys->mem_offset);
-
-	return 1;
-}
-