board/bf561-ezkit/bf561-ezkit.c

   1 /*
   2  * U-boot - ezkit561.c
   3  *
   4  * Copyright (c) 2005 Bas Vermeulen <bas@buyways.nl>
   5  * Copyright (c) 2005-2007 Analog Devices Inc.
   6  *
   7  * (C) Copyright 2000-2004
   8  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   9  *
  10  * See file CREDITS for list of people who contributed to this
  11  * project.
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License as
  15  * published by the Free Software Foundation; either version 2 of
  16  * the License, or (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  26  * MA 02110-1301 USA
  27  */
  28
  29 #include <common.h>
  30 #include <asm/io.h>
  31
  32 int checkboard(void)
  33 {
  34         printf("CPU:   ADSP BF561\n");
  35         printf("Board: ADI BF561 EZ-Kit Lite board\n");
  36         printf("       Support: http://blackfin.uclinux.org/\n");
  37         return 0;
  38 }
  39
  40 long int initdram(int board_type)
  41 {
  42         DECLARE_GLOBAL_DATA_PTR;
  43 #ifdef DEBUG
  44         int brate;
  45         char *tmp = getenv("baudrate");
  46         brate = simple_strtoul(tmp, NULL, 16);
  47         printf("Serial Port initialized with Baud rate = %x\n", brate);
  48         printf("SDRAM attributes:\n");
  49         printf("tRCD %d SCLK Cycles,tRP %d SCLK Cycles,tRAS %d SCLK Cycles"
  50                "tWR %d SCLK Cycles,CAS Latency %d SCLK cycles \n",
  51                3, 3, 6, 2, 3);
  52         printf("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE);
  53         printf("Bank size = %d MB\n", CFG_MAX_RAM_SIZE >> 20);
  54 #endif
  55         gd->bd->bi_memstart = CFG_SDRAM_BASE;
  56         gd->bd->bi_memsize = CFG_MAX_RAM_SIZE;
  57         return CFG_MAX_RAM_SIZE;
  58 }
  59
  60 #if defined(CONFIG_MISC_INIT_R)
  61 /* miscellaneous platform dependent initialisations */
  62 int misc_init_r(void)
  63 {
  64         /* Keep PF12 low to be able to drive the USB-LAN Extender */
  65         *pFIO0_DIR = 0x0000;
  66         *pFIO0_FLAG_C = 0x1000; /* Clear PF12 */
  67         sync();
  68         *pFIO0_POLAR = 0x0000;
  69         sync();
  70
  71         return 0;
  72 }
  73 #endif