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      1 /*	$NetBSD: smdk2800.c,v 1.5 2006/01/16 19:34:53 he 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
    105