board/dnp5370/dnp5370.c

   1 /*
   2  * U-boot - main board file
   3  *
   4  * (C) Copyright 2010 3ality Digital Systems
   5  *
   6  * Copyright (c) 2005-2008 Analog Devices Inc.
   7  *
   8  * (C) Copyright 2000-2004
   9  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  10  *
  11  * See file CREDITS for list of people who contributed to this
  12  * project.
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License as
  16  * published by the Free Software Foundation; either version 2 of
  17  * the License, or (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  27  * MA 02110-1301 USA
  28  */
  29
  30 #include <common.h>
  31 #include <config.h>
  32 #include <asm/blackfin.h>
  33 #include <asm/net.h>
  34 #include <net.h>
  35 #include <netdev.h>
  36 #include <asm/gpio.h>
  37
  38 static void disable_external_watchdog(void)
  39 {
  40 #ifdef CONFIG_DNP5370_EXT_WD_DISABLE
  41         /* disable external HW watchdog with PH13 = WD1 = 1 */
  42         gpio_request(GPIO_PH13, "ext_wd");
  43         gpio_direction_output(GPIO_PH13, 1);
  44 #endif
  45 }
  46
  47 int checkboard(void)
  48 {
  49         printf("Board: SSV DilNet DNP5370\n");
  50         return 0;
  51 }
  52
  53 #ifdef CONFIG_BFIN_MAC
  54 static void board_init_enetaddr(uchar *mac_addr)
  55 {
  56 #ifdef CONFIG_SYS_NO_FLASH
  57 # define USE_MAC_IN_FLASH 0
  58 #else
  59 # define USE_MAC_IN_FLASH 1
  60 #endif
  61         bool valid_mac = false;
  62
  63         if (USE_MAC_IN_FLASH) {
  64                 /* we cram the MAC in the last flash sector */
  65                 uchar *board_mac_addr = (uchar *)0x202F0000;
  66                 if (is_valid_ether_addr(board_mac_addr)) {
  67                         memcpy(mac_addr, board_mac_addr, 6);
  68                         valid_mac = true;
  69                 }
  70         }
  71
  72         if (!valid_mac) {
  73                 puts("Warning: Generating 'random' MAC address\n");
  74                 bfin_gen_rand_mac(mac_addr);
  75         }
  76
  77         eth_setenv_enetaddr("ethaddr", mac_addr);
  78 }
  79
  80 int board_eth_init(bd_t *bis)
  81 {
  82         return bfin_EMAC_initialize(bis);
  83 }
  84 #endif
  85
  86 /* miscellaneous platform dependent initialisations */
  87 int misc_init_r(void)
  88 {
  89         disable_external_watchdog();
  90
  91 #ifdef CONFIG_BFIN_MAC
  92         uchar enetaddr[6];
  93         if (!eth_getenv_enetaddr("ethaddr", enetaddr))
  94                 board_init_enetaddr(enetaddr);
  95 #endif
  96
  97 #ifndef CONFIG_SYS_NO_FLASH
  98         /* we use the last sector for the MAC address / POST LDR */
  99         extern flash_info_t flash_info[];
 100         flash_protect(FLAG_PROTECT_SET, 0x202F0000, 0x202FFFFF, &flash_info[0]);
 101 #endif
 102
 103         return 0;
 104 }