sys/arch/evbarm/stand/board/smdk2800.c

   1 /*      $NetBSD: smdk2800.c,v 1.4 2005/12/11 12:17:09 christos Exp $ */
   2
   3 /*
   4  * Copyright (c) 2002, 2003 Fujitsu Component Limited
   5  * Copyright (c) 2002, 2003 Genetec Corporation
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of The Fujitsu Component Limited nor the name of
  17  *    Genetec corporation may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC
  21  * CORPORATION ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  22  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  23  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  24  * DISCLAIMED.  IN NO EVENT SHALL FUJITSU COMPONENT LIMITED OR GENETEC
  25  * CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  28  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  29  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 /*
  36  * Board initialization routines for the Samsung's SMDK2800.
  37  */
  38
  39 #include <sys/types.h>
  40 #include <lib/libsa/stand.h>
  41 #include <arch/arm/s3c2xx0/s3c2800reg.h>
  42
  43 #include "board.h"
  44
  45 #define RAM_START       0x08000000
  46 #define RAM_SIZE        0x02000000
  47
  48 void
  49 board_init(void)
  50 {
  51         mem_init();
  52 }
  53
  54 void
  55 board_fini(void)
  56 {
  57
  58         /* Nothing to do here. */
  59 }
  60
  61 void
  62 mem_init(void)
  63 {
  64         uint32_t start, size, heap;
  65
  66         start = RAM_START;
  67         size =  RAM_SIZE;
  68         /* ROM monitor uses top of SDRAM for page table. */
  69 #define ROMMONITOR_PAGETABLE  (RAM_START+RAM_SIZE-0x8000)
  70
  71         heap = ROMMONITOR_PAGETABLE - BOARD_HEAP_SIZE;
  72
  73         printf(">> RAM 0x%x - 0x%x, heap at 0x%x\n",
  74             start, (start + size) - 1, heap);
  75         setheap((void *)heap, (void *)(heap + BOARD_HEAP_SIZE - 1));
  76 }
  77
  78 #ifdef SELFCOPY_TO_FLASH
  79 #include "flash.h"
  80
  81 void
  82 protect_flash(int protect_on)
  83 {
  84         volatile uint8_t *gpdatc =
  85                 (volatile uint8_t *)(S3C2800_GPIO_BASE+GPIO_PDATC);
  86
  87         if (protect_on)
  88                 *gpdatc &= (1<<3);
  89         else
  90                 *gpdatc |= (1<<3);
  91 }
  92
  93 int
  94 get_flash_info(void *addr, struct flash_info *info)
  95 {
  96         get_flash_chip_info(addr, info);
  97
  98         info->page_size *= 2;
  99         info->data_width *= 2;
 100         info->writebuf_len *= 2;
 101
 102         return 0;
 103 }
 104 #endif