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, 184 deletions

diff --git a/arch/arm26/mm/memc.c b/arch/arm26/mm/memc.c
deleted file mode 100644
index ffecd857824..00000000000
--- a/arch/arm26/mm/memc.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- *  linux/arch/arm26/mm/memc.c
- *
- *  Copyright (C) 1998-2000 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.
- *
- *  Page table sludge for older ARM processor architectures.
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/page.h>
-#include <asm/memory.h>
-#include <asm/hardware.h>
-
-#include <asm/map.h>
-
-#define MEMC_TABLE_SIZE (256*sizeof(unsigned long))
-
-struct kmem_cache *pte_cache, *pgd_cache;
-int page_nr;
-
-/*
- * Allocate space for a page table and a MEMC table.
- * Note that we place the MEMC
- * table before the page directory.  This means we can
- * easily get to both tightly-associated data structures
- * with a single pointer.
- */
-static inline pgd_t *alloc_pgd_table(void)
-{
-	void *pg2k = kmem_cache_alloc(pgd_cache, GFP_KERNEL);
-
-	if (pg2k)
-		pg2k += MEMC_TABLE_SIZE;
-
-	return (pgd_t *)pg2k;
-}
-
-/*
- * Free a page table. this function is the counterpart to get_pgd_slow
- * below, not alloc_pgd_table above.
- */
-void free_pgd_slow(pgd_t *pgd)
-{
-	unsigned long tbl = (unsigned long)pgd;
-
-	tbl -= MEMC_TABLE_SIZE;
-
-	kmem_cache_free(pgd_cache, (void *)tbl);
-}
-
-/*
- * Allocate a new pgd and fill it in ready for use
- *
- * A new tasks pgd is completely empty (all pages !present) except for:
- *
- * o The machine vectors at virtual address 0x0
- * o The vmalloc region at the top of address space
- *
- */
-#define FIRST_KERNEL_PGD_NR     (FIRST_USER_PGD_NR + USER_PTRS_PER_PGD)
-
-pgd_t *get_pgd_slow(struct mm_struct *mm)
-{
-	pgd_t *new_pgd, *init_pgd;
-	pmd_t *new_pmd, *init_pmd;
-	pte_t *new_pte, *init_pte;
-
-	new_pgd = alloc_pgd_table();
-	if (!new_pgd)
-		goto no_pgd;
-
-	/*
-	 * On ARM, first page must always be allocated since it contains
-	 * the machine vectors.
-	 */
-	new_pmd = pmd_alloc(mm, new_pgd, 0);
-	if (!new_pmd)
-		goto no_pmd;
-
-	new_pte = pte_alloc_map(mm, new_pmd, 0);
-	if (!new_pte)
-		goto no_pte;
-
-	init_pgd = pgd_offset(&init_mm, 0);
-	init_pmd = pmd_offset(init_pgd, 0);
-	init_pte = pte_offset(init_pmd, 0);
-
-	set_pte(new_pte, *init_pte);
-	pte_unmap(new_pte);
-
-	/*
-	 * the page table entries are zeroed
-	 * when the table is created. (see the cache_ctor functions below)
-	 * Now we need to plonk the kernel (vmalloc) area at the end of
-	 * the address space. We copy this from the init thread, just like
-	 * the init_pte we copied above...
-	 */
-	memcpy(new_pgd + FIRST_KERNEL_PGD_NR, init_pgd + FIRST_KERNEL_PGD_NR,
-		(PTRS_PER_PGD - FIRST_KERNEL_PGD_NR) * sizeof(pgd_t));
-
-	/* update MEMC tables */
-	cpu_memc_update_all(new_pgd);
-	return new_pgd;
-
-no_pte:
-	pmd_free(new_pmd);
-no_pmd:
-	free_pgd_slow(new_pgd);
-no_pgd:
-	return NULL;
-}
-
-/*
- * No special code is required here.
- */
-void setup_mm_for_reboot(char mode)
-{
-}
-
-/*
- * This contains the code to setup the memory map on an ARM2/ARM250/ARM3
- *  o swapper_pg_dir = 0x0207d000
- *  o kernel proper starts at 0x0208000
- *  o create (allocate) a pte to contain the machine vectors
- *  o populate the pte (points to 0x02078000) (FIXME - is it zeroed?)
- *  o populate the init tasks page directory (pgd) with the new pte
- *  o zero the rest of the init tasks pgdir (FIXME - what about vmalloc?!)
- */
-void __init memtable_init(struct meminfo *mi)
-{
-	pte_t *pte;
-	int i;
-
-	page_nr = max_low_pfn;
-
-	pte = alloc_bootmem_low_pages(PTRS_PER_PTE * sizeof(pte_t));
-	pte[0] = mk_pte_phys(PAGE_OFFSET + SCREEN_SIZE, PAGE_READONLY);
-	pmd_populate(&init_mm, pmd_offset(swapper_pg_dir, 0), pte);
-
-	for (i = 1; i < PTRS_PER_PGD; i++)
-		pgd_val(swapper_pg_dir[i]) = 0;
-}
-
-void __init iotable_init(struct map_desc *io_desc)
-{
-	/* nothing to do */
-}
-
-/*
- * We never have holes in the memmap
- */
-void __init create_memmap_holes(struct meminfo *mi)
-{
-}
-
-static void pte_cache_ctor(void *pte, struct kmem_cache *cache, unsigned long flags)
-{
-	memzero(pte, sizeof(pte_t) * PTRS_PER_PTE);
-}
-
-static void pgd_cache_ctor(void *pgd, struct kmem_cache *cache, unsigned long flags)
-{
-	memzero(pgd + MEMC_TABLE_SIZE, USER_PTRS_PER_PGD * sizeof(pgd_t));
-}
-
-void __init pgtable_cache_init(void)
-{
-	pte_cache = kmem_cache_create("pte-cache",
-				sizeof(pte_t) * PTRS_PER_PTE,
-				0, SLAB_PANIC, pte_cache_ctor);
-
-	pgd_cache = kmem_cache_create("pgd-cache", MEMC_TABLE_SIZE +
-				sizeof(pgd_t) * PTRS_PER_PGD,
-				0, SLAB_PANIC, pgd_cache_ctor);
-}