board/atmel/atstk1000/atstk1000.c

   1 /*
   2  * Copyright (C) 2005-2006 Atmel Corporation
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22 #include <common.h>
  23
  24 #include <asm/io.h>
  25 #include <asm/sdram.h>
  26 #include <asm/arch/clk.h>
  27 #include <asm/arch/gpio.h>
  28 #include <asm/arch/hmatrix2.h>
  29
  30 DECLARE_GLOBAL_DATA_PTR;
  31
  32 static const struct sdram_info sdram = {
  33         .phys_addr      = CFG_SDRAM_BASE,
  34         .row_bits       = 11,
  35         .col_bits       = 8,
  36         .bank_bits      = 2,
  37         .cas            = 3,
  38         .twr            = 2,
  39         .trc            = 7,
  40         .trp            = 2,
  41         .trcd           = 2,
  42         .tras           = 5,
  43         .txsr           = 5,
  44         /* 15.6 us */
  45         .refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
  46 };
  47
  48 int board_early_init_f(void)
  49 {
  50         /* Set the SDRAM_ENABLE bit in the HEBI SFR */
  51         hmatrix2_writel(SFR4, 1 << 1);
  52
  53         gpio_enable_ebi();
  54         gpio_enable_usart1();
  55 #if defined(CONFIG_MACB)
  56         gpio_enable_macb0();
  57         gpio_enable_macb1();
  58 #endif
  59 #if defined(CONFIG_MMC)
  60         gpio_enable_mmci();
  61 #endif
  62
  63         return 0;
  64 }
  65
  66 long int initdram(int board_type)
  67 {
  68         return sdram_init(&sdram);
  69 }
  70
  71 void board_init_info(void)
  72 {
  73         gd->bd->bi_phy_id[0] = 0x10;
  74         gd->bd->bi_phy_id[1] = 0x11;
  75 }