Remove the arm26 port

The arm26 port has been in a state where it was far from even compiling
for quite some time.

Ian Molton agreed with the removal.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 403 deletions

diff --git a/arch/arm26/mm/init.c b/arch/arm26/mm/init.c
deleted file mode 100644
index 36e7ee3f8321..000000000000
--- a/arch/arm26/mm/init.c
+++ /dev/null
@@ -1,403 +0,0 @@
-/*
- *  linux/arch/arm26/mm/init.c
- *
- *  Copyright (C) 1995-2002 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/initrd.h>
-#include <linux/bootmem.h>
-#include <linux/blkdev.h>
-#include <linux/pfn.h>
-
-#include <asm/segment.h>
-#include <asm/mach-types.h>
-#include <asm/dma.h>
-#include <asm/hardware.h>
-#include <asm/setup.h>
-#include <asm/tlb.h>
-
-#include <asm/map.h>
-
-struct mmu_gather mmu_gathers[NR_CPUS];
-
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-extern char _stext, _text, _etext, _end, __init_begin, __init_end;
-#ifdef CONFIG_XIP_KERNEL
-extern char _endtext, _sdata;
-#endif
-extern unsigned long phys_initrd_start;
-extern unsigned long phys_initrd_size;
-
-/*
- * The sole use of this is to pass memory configuration
- * data from paging_init to mem_init.
- */
-static struct meminfo meminfo __initdata = { 0, };
-
-/*
- * empty_zero_page is a special page that is used for
- * zero-initialized data and COW.
- */
-struct page *empty_zero_page;
-
-void show_mem(void)
-{
-        int free = 0, total = 0, reserved = 0;
-        int shared = 0, cached = 0, slab = 0;
-        struct page *page, *end;
-
-        printk("Mem-info:\n");
-        show_free_areas();
-        printk("Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
-
-
-        page = NODE_MEM_MAP(0);
-        end  = page + NODE_DATA(0)->node_spanned_pages;
-
-        do {
-                total++;
-                if (PageReserved(page))
-                        reserved++;
-                else if (PageSwapCache(page))
-                        cached++;
-                else if (PageSlab(page))
-                        slab++;
-                else if (!page_count(page))
-                        free++;
-                else
-                        shared += page_count(page) - 1;
-                page++;
-        } while (page < end);
-
-        printk("%d pages of RAM\n", total);
-        printk("%d free pages\n", free);
-        printk("%d reserved pages\n", reserved);
-        printk("%d slab pages\n", slab);
-        printk("%d pages shared\n", shared);
-        printk("%d pages swap cached\n", cached);
-}
-
-struct node_info {
-        unsigned int start;
-        unsigned int end;
-        int bootmap_pages;
-};
-
-/*
- * FIXME: We really want to avoid allocating the bootmap bitmap
- * over the top of the initrd.  Hopefully, this is located towards
- * the start of a bank, so if we allocate the bootmap bitmap at
- * the end, we won't clash.
- */
-static unsigned int __init
-find_bootmap_pfn(struct meminfo *mi, unsigned int bootmap_pages)
-{
-        unsigned int start_pfn, bootmap_pfn;
-        unsigned int start, end;
-
-        start_pfn   = PFN_UP((unsigned long)&_end);
-        bootmap_pfn = 0;
-
-        /* ARM26 machines only have one node */
-        if (mi->bank->node != 0)
-                BUG();
-
-        start = PFN_UP(mi->bank->start);
-        end   = PFN_DOWN(mi->bank->size + mi->bank->start);
-
-        if (start < start_pfn)
-                start = start_pfn;
-
-        if (end <= start)
-                BUG();
-
-        if (end - start >= bootmap_pages) 
-                bootmap_pfn = start;
-        else
-                BUG();
-
-        return bootmap_pfn;
-}
-
-/*
- * Scan the memory info structure and pull out:
- *  - the end of memory
- *  - the number of nodes
- *  - the pfn range of each node
- *  - the number of bootmem bitmap pages
- */
-static void __init
-find_memend_and_nodes(struct meminfo *mi, struct node_info *np)
-{
-        unsigned int memend_pfn = 0;
-
-        nodes_clear(node_online_map);
-        node_set_online(0);
-
-        np->bootmap_pages = 0;
-
-        if (mi->bank->size == 0) {
-                BUG();
-        }
-
-        /*
-         * Get the start and end pfns for this bank
-         */
-        np->start = PFN_UP(mi->bank->start);
-        np->end   = PFN_DOWN(mi->bank->start + mi->bank->size);
-
-        if (memend_pfn < np->end)
-                memend_pfn = np->end;
-
-        /*
-         * Calculate the number of pages we require to
-         * store the bootmem bitmaps.
-         */
-        np->bootmap_pages = bootmem_bootmap_pages(np->end - np->start);
-
-        /*
-         * This doesn't seem to be used by the Linux memory
-         * manager any more.  If we can get rid of it, we
-         * also get rid of some of the stuff above as well.
-         */
-        max_low_pfn = memend_pfn - PFN_DOWN(PHYS_OFFSET);
-        max_pfn = memend_pfn - PFN_DOWN(PHYS_OFFSET);
-        mi->end = memend_pfn << PAGE_SHIFT;
-
-}
-
-/*
- * Initialise the bootmem allocator for all nodes.  This is called
- * early during the architecture specific initialisation.
- */
-void __init bootmem_init(struct meminfo *mi)
-{
-        struct node_info node_info;
-        unsigned int bootmap_pfn;
-        pg_data_t *pgdat = NODE_DATA(0);
-
-        find_memend_and_nodes(mi, &node_info);
-
-        bootmap_pfn   = find_bootmap_pfn(mi, node_info.bootmap_pages);
-
-        /*
-         * Note that node 0 must always have some pages.
-         */
-        if (node_info.end == 0)
-                BUG();
-
-        /*
-         * Initialise the bootmem allocator.
-         */
-        init_bootmem_node(pgdat, bootmap_pfn, node_info.start, node_info.end);
-
-        /*
-         * Register all available RAM in this node with the bootmem allocator. 
-         */
-        free_bootmem_node(pgdat, mi->bank->start, mi->bank->size);
-
-        /*
-         * Register the kernel text and data with bootmem.
-         * Note: with XIP we dont register .text since
-         * its in ROM.
-         */
-#ifdef CONFIG_XIP_KERNEL
-        reserve_bootmem_node(pgdat, __pa(&_sdata), &_end - &_sdata);
-#else
-        reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext);
-#endif
-
-        /*
-         * And don't forget to reserve the allocator bitmap,
-         * which will be freed later.
-         */
-        reserve_bootmem_node(pgdat, bootmap_pfn << PAGE_SHIFT,
-                             node_info.bootmap_pages << PAGE_SHIFT);
-
-        /*
-         * These should likewise go elsewhere.  They pre-reserve
-         * the screen memory region at the start of main system
-         * memory. FIXME - screen RAM is not 512K!
-         */
-        reserve_bootmem_node(pgdat, 0x02000000, 0x00080000);
-
-#ifdef CONFIG_BLK_DEV_INITRD
-        initrd_start = phys_initrd_start;
-        initrd_end = initrd_start + phys_initrd_size;
-
-        /* Achimedes machines only have one node, so initrd is in node 0 */
-#ifdef CONFIG_XIP_KERNEL
-        /* Only reserve initrd space if it is in RAM */
-        if(initrd_start && initrd_start < 0x03000000){
-#else
-        if(initrd_start){
-#endif
-                reserve_bootmem_node(pgdat, __pa(initrd_start),
-                                             initrd_end - initrd_start);
-        }
-#endif   /* CONFIG_BLK_DEV_INITRD */
-
-
-}
-
-/*
- * paging_init() sets up the page tables, initialises the zone memory
- * maps, and sets up the zero page, bad page and bad page tables.
- */
-void __init paging_init(struct meminfo *mi)
-{
-        void *zero_page;
-        unsigned long zone_size[MAX_NR_ZONES];
-        unsigned long zhole_size[MAX_NR_ZONES];
-        struct bootmem_data *bdata;
-        pg_data_t *pgdat;
-        int i;
-
-        memcpy(&meminfo, mi, sizeof(meminfo));
-
-        /*
-         * allocate the zero page.  Note that we count on this going ok.
-         */
-        zero_page = alloc_bootmem_low_pages(PAGE_SIZE);
-
-        /*
-         * initialise the page tables.
-         */
-        memtable_init(mi);
-        flush_tlb_all();
-
-        /*
-         * initialise the zones in node 0 (archimedes have only 1 node)
-         */
-
-        for (i = 0; i < MAX_NR_ZONES; i++) {
-                zone_size[i]  = 0;
-                zhole_size[i] = 0;
-        }
-
-        pgdat = NODE_DATA(0);
-        bdata = pgdat->bdata;
-        zone_size[0] = bdata->node_low_pfn -
-                        (bdata->node_boot_start >> PAGE_SHIFT);
-        if (!zone_size[0])
-                BUG();
-        pgdat->node_mem_map = NULL;
-        free_area_init_node(0, pgdat, zone_size,
-                        bdata->node_boot_start >> PAGE_SHIFT, zhole_size);
-
-        /*
-         * finish off the bad pages once
-         * the mem_map is initialised
-         */
-        memzero(zero_page, PAGE_SIZE);
-        empty_zero_page = virt_to_page(zero_page);
-}
-
-static inline void free_area(unsigned long addr, unsigned long end, char *s)
-{
-        unsigned int size = (end - addr) >> 10;
-
-        for (; addr < end; addr += PAGE_SIZE) {
-                struct page *page = virt_to_page(addr);
-                ClearPageReserved(page);
-                init_page_count(page);
-                free_page(addr);
-                totalram_pages++;
-        }
-
-        if (size && s)
-                printk(KERN_INFO "Freeing %s memory: %dK\n", s, size);
-}
-
-/*
- * mem_init() marks the free areas in the mem_map and tells us how much
- * memory is free.  This is done after various parts of the system have
- * claimed their memory after the kernel image.
- */
-void __init mem_init(void)
-{
-        unsigned int codepages, datapages, initpages;
-        pg_data_t *pgdat = NODE_DATA(0);
-        extern int sysctl_overcommit_memory;
-
-
-        /* Note: data pages includes BSS */
-#ifdef CONFIG_XIP_KERNEL
-        codepages = &_endtext - &_text;
-        datapages = &_end - &_sdata;
-#else
-        codepages = &_etext - &_text;
-        datapages = &_end - &_etext;
-#endif
-        initpages = &__init_end - &__init_begin;
-
-        high_memory = (void *)__va(meminfo.end);
-        max_mapnr   = virt_to_page(high_memory) - mem_map;
-
-        /* this will put all unused low memory onto the freelists */
-        if (pgdat->node_spanned_pages != 0)
-                totalram_pages += free_all_bootmem_node(pgdat);
-
-        num_physpages = meminfo.bank[0].size >> PAGE_SHIFT;
-
-        printk(KERN_INFO "Memory: %luMB total\n", num_physpages >> (20 - PAGE_SHIFT));
-        printk(KERN_NOTICE "Memory: %luKB available (%dK code, "
-                "%dK data, %dK init)\n",
-                (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
-                codepages >> 10, datapages >> 10, initpages >> 10);
-
-        /*
-         * Turn on overcommit on tiny machines
-         */
-        if (PAGE_SIZE >= 16384 && num_physpages <= 128) {
-                sysctl_overcommit_memory = OVERCOMMIT_ALWAYS;
-                printk("Turning on overcommit\n");
-        }
-}
-
-void free_initmem(void){
-#ifndef CONFIG_XIP_KERNEL
-        free_area((unsigned long)(&__init_begin),
-                  (unsigned long)(&__init_end),
-                  "init");
-#endif
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-
-static int keep_initrd;
-
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-#ifdef CONFIG_XIP_KERNEL
-        /* Only bin initrd if it is in RAM... */
-        if(!keep_initrd && start < 0x03000000)
-#else
-        if (!keep_initrd)
-#endif
-                free_area(start, end, "initrd");
-}
-
-static int __init keepinitrd_setup(char *__unused)
-{
-        keep_initrd = 1;
-        return 1;
-}
-
-__setup("keepinitrd", keepinitrd_setup);
-#endif