LXR uboot/board/bf526-ezbrd/bf526-ezbrd.c

   1/*
   2 * U-boot - main board file
   3 *
   4 * Copyright (c) 2005-2009 Analog Devices Inc.
   5 *
   6 * Licensed under the GPL-2 or later.
   7 */
   8
   9#include <common.h>
  10#include <config.h>
  11#include <command.h>
  12#include <net.h>
  13#include <netdev.h>
  14#include <asm/blackfin.h>
  15#include <asm/net.h>
  16#include <asm/mach-common/bits/otp.h>
  17
  18DECLARE_GLOBAL_DATA_PTR;
  19
  20int checkboard(void)
  21{
  22        printf("Board: ADI BF526 EZ-Board board\n");
  23        printf("       Support: http://blackfin.uclinux.org/\n");
  24        return 0;
  25}
  26
  27#ifdef CONFIG_BFIN_MAC
  28static void board_init_enetaddr(uchar *mac_addr)
  29{
  30        bool valid_mac = false;
  31
  32        /* the MAC is stored in OTP memory page 0xDF */
  33        uint32_t ret;
  34        uint64_t otp_mac;
  35
  36        ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
  37        if (!(ret & OTP_MASTER_ERROR)) {
  38                uchar *otp_mac_p = (uchar *)&otp_mac;
  39
  40                for (ret = 0; ret < 6; ++ret)
  41                        mac_addr[ret] = otp_mac_p[5 - ret];
  42
  43                if (is_valid_ether_addr(mac_addr))
  44                        valid_mac = true;
  45        }
  46
  47        if (!valid_mac) {
  48                puts("Warning: Generating 'random' MAC address\n");
  49                bfin_gen_rand_mac(mac_addr);
  50        }
  51
  52        eth_setenv_enetaddr("ethaddr", mac_addr);
  53}
  54
  55int board_eth_init(bd_t *bis)
  56{
  57        return bfin_EMAC_initialize(bis);
  58}
  59#endif
  60
  61int misc_init_r(void)
  62{
  63#ifdef CONFIG_BFIN_MAC
  64        uchar enetaddr[6];
  65        if (!eth_getenv_enetaddr("ethaddr", enetaddr))
  66                board_init_enetaddr(enetaddr);
  67#endif
  68
  69        return 0;
  70}
  71