patch-2.4.4 linux/arch/arm/mm/mm-footbridge.c

• Lines: 118
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.3/linux/arch/arm/mm/mm-footbridge.c
• Orig date: Mon Sep 18 15:15:25 2000

diff -u --recursive --new-file v2.4.3/linux/arch/arm/mm/mm-footbridge.c linux/arch/arm/mm/mm-footbridge.c
@@ -1,117 +0,0 @@
-/*
- *  linux/arch/arm/mm/mm-footbridge.c
- *
- *  Copyright (C) 1998-2000 Russell King, Dave Gilbert.
- *
- * 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.
- *
- *  Extra MM routines for the EBSA285 architecture
- */
-#include <linux/config.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/init.h>
- 
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/io.h>
-#include <asm/hardware/dec21285.h>
-#include <asm/mach-types.h>
-
-#include <asm/mach/map.h>
-
-/*
- * Common mapping for all systems.  Note that the outbound write flush is
- * commented out since there is a "No Fix" problem with it.  Not mapping
- * it means that we have extra bullet protection on our feet.
- */
-static struct map_desc fb_common_io_desc[] __initdata = {
- { ARMCSR_BASE,	 DC21285_ARMCSR_BASE,	    ARMCSR_SIZE,  DOMAIN_IO, 0, 1, 0, 0 },
- { XBUS_BASE,    0x40000000,		    XBUS_SIZE,    DOMAIN_IO, 0, 1, 0, 0 },
- LAST_DESC
-};
-
-/*
- * The mapping when the footbridge is in host mode.  We don't map any of
- * this when we are in add-in mode.
- */
-static struct map_desc ebsa285_host_io_desc[] __initdata = {
-#if defined(CONFIG_ARCH_FOOTBRIDGE) && defined(CONFIG_FOOTBRIDGE_HOST)
- { PCIMEM_BASE,  DC21285_PCI_MEM,	    PCIMEM_SIZE,  DOMAIN_IO, 0, 1, 0, 0 },
- { PCICFG0_BASE, DC21285_PCI_TYPE_0_CONFIG, PCICFG0_SIZE, DOMAIN_IO, 0, 1, 0, 0 },
- { PCICFG1_BASE, DC21285_PCI_TYPE_1_CONFIG, PCICFG1_SIZE, DOMAIN_IO, 0, 1, 0, 0 },
- { PCIIACK_BASE, DC21285_PCI_IACK,	    PCIIACK_SIZE, DOMAIN_IO, 0, 1, 0, 0 },
- { PCIO_BASE,    DC21285_PCI_IO,	    PCIO_SIZE,	  DOMAIN_IO, 0, 1, 0, 0 },
-#endif
- LAST_DESC
-};
-
-/*
- * The CO-ebsa285 mapping.
- */
-static struct map_desc co285_io_desc[] __initdata = {
-#ifdef CONFIG_ARCH_CO285
- { PCIO_BASE,	 DC21285_PCI_IO,	    PCIO_SIZE,    DOMAIN_IO, 0, 1, 0, 0 },
- { PCIMEM_BASE,	 DC21285_PCI_MEM,	    PCIMEM_SIZE,  DOMAIN_IO, 0, 1, 0, 0 },
-#endif
- LAST_DESC
-};
-
-void __init footbridge_map_io(void)
-{
-	struct map_desc *desc = NULL;
-
-	/*
-	 * Set up the common mapping first; we need this to
-	 * determine whether we're in host mode or not.
-	 */
-	iotable_init(fb_common_io_desc);
-
-	/*
-	 * Now, work out what we've got to map in addition on this
-	 * platform.
-	 */
-	if (machine_is_co285())
-		desc = co285_io_desc;
-	else if (footbridge_cfn_mode())
-		desc = ebsa285_host_io_desc;
-
-	if (desc)
-		iotable_init(desc);
-}
-
-#ifdef CONFIG_FOOTBRIDGE_ADDIN
-
-/*
- * These two functions convert virtual addresses to PCI addresses and PCI
- * addresses to virtual addresses.  Note that it is only legal to use these
- * on memory obtained via get_free_page or kmalloc.
- */
-unsigned long __virt_to_bus(unsigned long res)
-{
-#ifdef CONFIG_DEBUG_ERRORS
-	if (res < PAGE_OFFSET || res >= (unsigned long)high_memory) {
-		printk("__virt_to_bus: invalid virtual address 0x%08lx\n", res);
-		__backtrace();
-	}
-#endif
-	return (res - PAGE_OFFSET) + (*CSR_PCISDRAMBASE & 0xfffffff0);
-}
-
-unsigned long __bus_to_virt(unsigned long res)
-{
-	res -= (*CSR_PCISDRAMBASE & 0xfffffff0);
-	res += PAGE_OFFSET;
-
-#ifdef CONFIG_DEBUG_ERRORS
-	if (res < PAGE_OFFSET || res >= (unsigned long)high_memory) {
-		printk("__bus_to_virt: invalid virtual address 0x%08lx\n", res);
-		__backtrace();
-	}
-#endif
-	return res;
-}
-
-#endif