sys/arch/evbarm/stand/board/gemini_mem.c

   1 /*      $NetBSD: gemini_mem.c,v 1.1 2008/10/30 06:23:13 cliff Exp $     */
   2
   3 /* adapted from:
   4  *      NetBSD: integrator_mem.c,v 1.4 2006/01/16 19:34:53 he Exp
   5  */
   6
   7 /*
   8  * Copyright (c) 2002 Wasabi Systems, Inc.
   9  * All rights reserved.
  10  *
  11  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  * 3. All advertising materials mentioning features or use of this software
  22  *    must display the following acknowledgement:
  23  *      This product includes software developed for the NetBSD Project by
  24  *      Wasabi Systems, Inc.
  25  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  26  *    or promote products derived from this software without specific prior
  27  *    written permission.
  28  *
  29  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  30  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  31  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  32  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  33  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  34  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  35  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  36  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  37  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  39  * POSSIBILITY OF SUCH DAMAGE.
  40  */
  41
  42 /*
  43  * This file provides the mem_init() function for ARM Integrator
  44  * core modules.
  45  */
  46
  47 #include <sys/types.h>
  48 #include <lib/libsa/stand.h>
  49
  50 #include "board.h"
  51
  52 /*
  53  * constrain MEMSIZE to avoid stepping out of smallest-case
  54  * Gemini CPU Remap Control remapped-private memory size
  55  * "bad" things can happen if the gzboot heap is in
  56  * non-core-private memory.
  57  */
  58 #define MEMSIZE (32 * 1024 * 1024)      /* 32MB */
  59
  60 void
  61 mem_init(void)
  62 {
  63         uint32_t heap, size;
  64
  65         size = MEMSIZE;
  66
  67         /* Start is always 0. */
  68         heap = size - BOARD_HEAP_SIZE;
  69
  70         printf(">> RAM 0x%x - 0x%x, heap at 0x%x\n", 0, size - 1, heap);
  71         setheap((void *)heap, (void *)(size - 1));
  72 }