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/net.h>
  15 #include <asm/mach-common/bits/otp.h>
  16 #include "gpio_cfi_flash.h"
  17
  18 DECLARE_GLOBAL_DATA_PTR;
  19
  20 int checkboard(void)
  21 {
  22         printf("Board: Bluetechnix CM-BF527 board\n");
  23         printf("       Support: http://www.bluetechnix.at/\n");
  24         return 0;
  25 }
  26
  27 phys_size_t initdram(int board_type)
  28 {
  29         gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
  30         gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
  31         return gd->bd->bi_memsize;
  32 }
  33
  34 #ifdef CONFIG_BFIN_MAC
  35 static void board_init_enetaddr(uchar *mac_addr)
  36 {
  37         bool valid_mac = false;
  38
  39         /* the MAC is stored in OTP memory page 0xDF */
  40         uint32_t ret;
  41         uint64_t otp_mac;
  42
  43         ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
  44         if (!(ret & OTP_MASTER_ERROR)) {
  45                 uchar *otp_mac_p = (uchar *)&otp_mac;
  46
  47                 for (ret = 0; ret < 6; ++ret)
  48                         mac_addr[ret] = otp_mac_p[5 - ret];
  49
  50                 if (is_valid_ether_addr(mac_addr))
  51                         valid_mac = true;
  52         }
  53
  54         if (!valid_mac) {
  55                 puts("Warning: Generating 'random' MAC address\n");
  56                 bfin_gen_rand_mac(mac_addr);
  57         }
  58
  59         eth_setenv_enetaddr("ethaddr", mac_addr);
  60 }
  61
  62 int board_eth_init(bd_t *bis)
  63 {
  64         return bfin_EMAC_initialize(bis);
  65 }
  66 #endif
  67
  68 int misc_init_r(void)
  69 {
  70 #ifdef CONFIG_BFIN_MAC
  71         uchar enetaddr[6];
  72         if (!eth_getenv_enetaddr("ethaddr", enetaddr))
  73                 board_init_enetaddr(enetaddr);
  74 #endif
  75
  76         gpio_cfi_flash_init();
  77
  78         return 0;
  79 }