LXR uboot/board/bf537-stamp/bf537-stamp.c

   1/*
   2 * U-boot - main board file
   3 *
   4 * Copyright (c) 2005-2008 Analog Devices Inc.
   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., 51 Franklin St, Fifth Floor, Boston,
  25 * MA 02110-1301 USA
  26 */
  27
  28#include <common.h>
  29#include <config.h>
  30#include <command.h>
  31#include <asm/blackfin.h>
  32#include <asm/net.h>
  33#include <net.h>
  34#include <asm/mach-common/bits/bootrom.h>
  35#include <netdev.h>
  36
  37DECLARE_GLOBAL_DATA_PTR;
  38
  39int checkboard(void)
  40{
  41        printf("Board: ADI BF537 stamp board\n");
  42        printf("       Support: http://blackfin.uclinux.org/\n");
  43        return 0;
  44}
  45
  46phys_size_t initdram(int board_type)
  47{
  48        gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
  49        gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
  50        return gd->bd->bi_memsize;
  51}
  52
  53void board_reset(void)
  54{
  55        /* workaround for weak pull ups on ssel */
  56        if (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_SPI_MASTER) {
  57                bfin_write_PORTF_FER(bfin_read_PORTF_FER() & ~PF10);
  58                bfin_write_PORTFIO_SET(PF10);
  59                udelay(1);
  60        }
  61}
  62
  63#ifdef CONFIG_BFIN_MAC
  64static void board_init_enetaddr(uchar *mac_addr)
  65{
  66#ifdef CONFIG_SYS_NO_FLASH
  67# define USE_MAC_IN_FLASH 0
  68#else
  69# define USE_MAC_IN_FLASH 1
  70#endif
  71        bool valid_mac = false;
  72
  73        if (USE_MAC_IN_FLASH) {
  74                /* we cram the MAC in the last flash sector */
  75                uchar *board_mac_addr = (uchar *)0x203F0000;
  76                if (is_valid_ether_addr(board_mac_addr)) {
  77                        memcpy(mac_addr, board_mac_addr, 6);
  78                        valid_mac = true;
  79                }
  80        }
  81
  82        if (!valid_mac) {
  83                puts("Warning: Generating 'random' MAC address\n");
  84                bfin_gen_rand_mac(mac_addr);
  85        }
  86
  87        eth_setenv_enetaddr("ethaddr", mac_addr);
  88}
  89
  90int board_eth_init(bd_t *bis)
  91{
  92        return bfin_EMAC_initialize(bis);
  93}
  94#endif
  95
  96/* miscellaneous platform dependent initialisations */
  97int misc_init_r(void)
  98{
  99#ifdef CONFIG_BFIN_MAC
 100        uchar enetaddr[6];
 101        if (!eth_getenv_enetaddr("ethaddr", enetaddr))
 102                board_init_enetaddr(enetaddr);
 103#endif
 104
 105#ifndef CONFIG_SYS_NO_FLASH
 106        /* we use the last sector for the MAC address / POST LDR */
 107        extern flash_info_t flash_info[];
 108        flash_protect(FLAG_PROTECT_SET, 0x203F0000, 0x203FFFFF, &flash_info[0]);
 109#endif
 110
 111#ifdef CONFIG_BFIN_IDE
 112        cf_ide_init();
 113#endif
 114
 115        return 0;
 116}
 117