/* * linux/arch/m68knommu/mm/memory.c * * Copyright (C) 1998 Kenneth Albanowski , * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) * * Based on: * * linux/arch/m68k/mm/memory.c * * Copyright (C) 1995 Hamish Macdonald */ #include #include #include #include #include #include #include #include #include /* * Map some physical address range into the kernel address space. * The code is copied and adapted from map_chunk(). */ unsigned long kernel_map(unsigned long paddr, unsigned long size, int nocacheflag, unsigned long *memavailp ) { return paddr; } int is_in_rom(unsigned long addr) { extern unsigned long _ramstart, _ramend; /* * What we are really trying to do is determine if addr is * in an allocated kernel memory region. If not then assume * we cannot free it or otherwise de-allocate it. Ideally * we could restrict this to really being in a ROM or flash, * but that would need to be done on a board by board basis, * not globally. */ if ((addr < _ramstart) || (addr >= _ramend)) return(1); /* Default case, not in ROM */ return(0); }