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  * SPDX-License-Identifier:     GPL-2.0+
  12  */
  13
  14 #include <common.h>
  15 #include <config.h>
  16 #include <asm/blackfin.h>
  17 #include <asm/net.h>
  18 #include <net.h>
  19 #include <netdev.h>
  20 #include <asm/gpio.h>
  21
  22 static void disable_external_watchdog(void)
  23 {
  24 #ifdef CONFIG_DNP5370_EXT_WD_DISABLE
  25         /* disable external HW watchdog with PH13 = WD1 = 1 */
  26         gpio_request(GPIO_PH13, "ext_wd");
  27         gpio_direction_output(GPIO_PH13, 1);
  28 #endif
  29 }
  30
  31 int checkboard(void)
  32 {
  33         printf("Board: SSV DilNet DNP5370\n");
  34         return 0;
  35 }
  36
  37 #ifdef CONFIG_BFIN_MAC
  38 static void board_init_enetaddr(uchar *mac_addr)
  39 {
  40 #ifdef CONFIG_SYS_NO_FLASH
  41 # define USE_MAC_IN_FLASH 0
  42 #else
  43 # define USE_MAC_IN_FLASH 1
  44 #endif
  45         bool valid_mac = false;
  46
  47         if (USE_MAC_IN_FLASH) {
  48                 /* we cram the MAC in the last flash sector */
  49                 uchar *board_mac_addr = (uchar *)0x202F0000;
  50                 if (is_valid_ether_addr(board_mac_addr)) {
  51                         memcpy(mac_addr, board_mac_addr, 6);
  52                         valid_mac = true;
  53                 }
  54         }
  55
  56         if (!valid_mac) {
  57                 puts("Warning: Generating 'random' MAC address\n");
  58                 bfin_gen_rand_mac(mac_addr);
  59         }
  60
  61         eth_setenv_enetaddr("ethaddr", mac_addr);
  62 }
  63
  64 int board_eth_init(bd_t *bis)
  65 {
  66         return bfin_EMAC_initialize(bis);
  67 }
  68 #endif
  69
  70 /* miscellaneous platform dependent initialisations */
  71 int misc_init_r(void)
  72 {
  73         disable_external_watchdog();
  74
  75 #ifdef CONFIG_BFIN_MAC
  76         uchar enetaddr[6];
  77         if (!eth_getenv_enetaddr("ethaddr", enetaddr))
  78                 board_init_enetaddr(enetaddr);
  79 #endif
  80
  81 #ifndef CONFIG_SYS_NO_FLASH
  82         /* we use the last sector for the MAC address / POST LDR */
  83         extern flash_info_t flash_info[];
  84         flash_protect(FLAG_PROTECT_SET, 0x202F0000, 0x202FFFFF, &flash_info[0]);
  85 #endif
  86
  87         return 0;
  88 }