| 1 | /* |
| 2 | * arch/ubicom32/mm/kmap.c |
| 3 | * Ubicom32 architecture non-mmu ioremap and friends implementation. |
| 4 | * |
| 5 | * (C) Copyright 2009, Ubicom, Inc. |
| 6 | * Copyright (C) 2000 Lineo, <davidm@snapgear.com> |
| 7 | * Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com> |
| 8 | * |
| 9 | * This file is part of the Ubicom32 Linux Kernel Port. |
| 10 | * |
| 11 | * The Ubicom32 Linux Kernel Port is free software: you can redistribute |
| 12 | * it and/or modify it under the terms of the GNU General Public License |
| 13 | * as published by the Free Software Foundation, either version 2 of the |
| 14 | * License, or (at your option) any later version. |
| 15 | * |
| 16 | * The Ubicom32 Linux Kernel Port is distributed in the hope that it |
| 17 | * will be useful, but WITHOUT ANY WARRANTY; without even the implied |
| 18 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 19 | * the GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with the Ubicom32 Linux Kernel Port. If not, |
| 23 | * see <http://www.gnu.org/licenses/>. |
| 24 | * |
| 25 | * Ubicom32 implementation derived from (with many thanks): |
| 26 | * arch/m68knommu |
| 27 | * arch/blackfin |
| 28 | * arch/parisc |
| 29 | */ |
| 30 | |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/mm.h> |
| 33 | #include <linux/kernel.h> |
| 34 | #include <linux/string.h> |
| 35 | #include <linux/types.h> |
| 36 | #include <linux/slab.h> |
| 37 | #include <linux/vmalloc.h> |
| 38 | |
| 39 | #include <asm/setup.h> |
| 40 | #include <asm/segment.h> |
| 41 | #include <asm/page.h> |
| 42 | #include <asm/pgalloc.h> |
| 43 | #include <asm/io.h> |
| 44 | #include <asm/system.h> |
| 45 | |
| 46 | #undef DEBUG |
| 47 | |
| 48 | /* |
| 49 | * Map some physical address range into the kernel address space. |
| 50 | */ |
| 51 | void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) |
| 52 | { |
| 53 | return (void *)physaddr; |
| 54 | } |
| 55 | |
| 56 | /* |
| 57 | * Unmap a ioremap()ed region again. |
| 58 | */ |
| 59 | void iounmap(void *addr) |
| 60 | { |
| 61 | } |
| 62 | |
| 63 | /* |
| 64 | * __iounmap unmaps nearly everything, so be careful |
| 65 | * it doesn't free currently pointer/page tables anymore but it |
| 66 | * wans't used anyway and might be added later. |
| 67 | */ |
| 68 | void __iounmap(void *addr, unsigned long size) |
| 69 | { |
| 70 | } |
| 71 | |
| 72 | /* |
| 73 | * Set new cache mode for some kernel address space. |
| 74 | * The caller must push data for that range itself, if such data may already |
| 75 | * be in the cache. |
| 76 | */ |
| 77 | void kernel_set_cachemode(void *addr, unsigned long size, int cmode) |
| 78 | { |
| 79 | } |
| 80 | |
