board/cm-bf527/cm-bf527.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 <net.h>
  12 #include <netdev.h>
  13 #include <asm/blackfin.h>
  14 #include <asm/mach-common/bits/otp.h>
  15 #include "../cm-bf537e/gpio_cfi_flash.h"
  16
  17 DECLARE_GLOBAL_DATA_PTR;
  18
  19 int checkboard(void)
  20 {
  21         printf("Board: Bluetechnix CM-BF527 board\n");
  22         printf("       Support: http://www.bluetechnix.at/\n");
  23         return 0;
  24 }
  25
  26 #ifdef CONFIG_BFIN_MAC
  27 static void board_init_enetaddr(uchar *mac_addr)
  28 {
  29         bool valid_mac = false;
  30
  31         /* the MAC is stored in OTP memory page 0xDF */
  32         uint32_t ret;
  33         uint64_t otp_mac;
  34
  35         ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
  36         if (!(ret & OTP_MASTER_ERROR)) {
  37                 uchar *otp_mac_p = (uchar *)&otp_mac;
  38
  39                 for (ret = 0; ret < 6; ++ret)
  40                         mac_addr[ret] = otp_mac_p[5 - ret];
  41
  42                 if (is_valid_ether_addr(mac_addr))
  43                         valid_mac = true;
  44         }
  45
  46         if (!valid_mac) {
  47                 puts("Warning: Generating 'random' MAC address\n");
  48                 eth_random_addr(mac_addr);
  49         }
  50
  51         eth_setenv_enetaddr("ethaddr", mac_addr);
  52 }
  53
  54 int board_eth_init(bd_t *bis)
  55 {
  56         return bfin_EMAC_initialize(bis);
  57 }
  58 #endif
  59
  60 int misc_init_r(void)
  61 {
  62 #ifdef CONFIG_BFIN_MAC
  63         uchar enetaddr[6];
  64         if (!eth_getenv_enetaddr("ethaddr", enetaddr))
  65                 board_init_enetaddr(enetaddr);
  66 #endif
  67
  68         gpio_cfi_flash_init();
  69
  70         return 0;
  71 }