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
  37 DECLARE_GLOBAL_DATA_PTR;
  38
  39 int checkboard(void)
  40 {
  41         printf("Board: ADI BF537 stamp board\n");
  42         printf("       Support: http://blackfin.uclinux.org/\n");
  43         return 0;
  44 }
  45
  46 phys_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
  53 void 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
  64 static 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
  90 int board_eth_init(bd_t *bis)
  91 {
  92         return bfin_EMAC_initialize(bis);
  93 }
  94 #endif
  95
  96 /* miscellaneous platform dependent initialisations */
  97 int 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 }