board/bf533-ezkit/bf533-ezkit.c

   1 /*
   2  * U-boot - ezkit533.c
   3  *
   4  * Copyright (c) 2005 blackfin.uclinux.org
   5  *
   6  * (C) Copyright 2000-2004
   7  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   8  *
   9  * See file CREDITS for list of people who contributed to this
  10  * project.
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License as
  14  * published by the Free Software Foundation; either version 2 of
  15  * the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  25  * MA 02111-1307 USA
  26  */
  27
  28 #include <common.h>
  29 #if defined(CONFIG_MISC_INIT_R)
  30 #include "psd4256.h"
  31 #endif
  32
  33 int checkboard(void)
  34 {
  35 #if (BFIN_CPU == ADSP_BF531)
  36         printf("CPU:   ADSP BF531 Rev.: 0.%d\n", *pCHIPID >> 28);
  37 #elif (BFIN_CPU == ADSP_BF532)
  38         printf("CPU:   ADSP BF532 Rev.: 0.%d\n", *pCHIPID >> 28);
  39 #else
  40         printf("CPU:   ADSP BF533 Rev.: 0.%d\n", *pCHIPID >> 28);
  41 #endif
  42         printf("Board: ADI BF533 EZ-Kit Lite board\n");
  43         printf("       Support: http://blackfin.uclinux.org/\n");
  44         return 0;
  45 }
  46
  47 long int initdram(int board_type)
  48 {
  49         DECLARE_GLOBAL_DATA_PTR;
  50 #ifdef DEBUG
  51         int brate;
  52         char *tmp = getenv("baudrate");
  53         brate = simple_strtoul(tmp, NULL, 16);
  54         printf("Serial Port initialized with Baud rate = %x\n", brate);
  55         printf("SDRAM attributes:\n");
  56         printf("tRCD %d SCLK Cycles,tRP %d SCLK Cycles,tRAS %d SCLK Cycles"
  57                "tWR %d SCLK Cycles,CAS Latency %d SCLK cycles \n",
  58                3, 3, 6, 2, 3);
  59         printf("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE);
  60         printf("Bank size = %d MB\n", CFG_MAX_RAM_SIZE >> 20);
  61 #endif
  62         gd->bd->bi_memstart = CFG_SDRAM_BASE;
  63         gd->bd->bi_memsize = CFG_MAX_RAM_SIZE;
  64         return CFG_MAX_RAM_SIZE;
  65 }
  66
  67 #if defined(CONFIG_MISC_INIT_R)
  68 /* miscellaneous platform dependent initialisations */
  69 int misc_init_r(void)
  70 {
  71         /* Set direction bits for Video en/decoder reset as output      */
  72         *(volatile unsigned char *)(CFG_FLASH1_BASE + PSD_PORTA_DIR) =
  73             PSDA_VDEC_RST | PSDA_VENC_RST;
  74         /* Deactivate Video en/decoder reset lines                      */
  75         *(volatile unsigned char *)(CFG_FLASH1_BASE + PSD_PORTA_DOUT) =
  76             PSDA_VDEC_RST | PSDA_VENC_RST;
  77
  78         return 0;
  79 }
  80 #endif