board/bf527-ezkit/bf527-ezkit.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/gpio.h>
  16 #include <asm/mach-common/bits/otp.h>
  17
  18 DECLARE_GLOBAL_DATA_PTR;
  19
  20 int checkboard(void)
  21 {
  22         printf("Board: ADI BF527 EZ-Kit board\n");
  23         printf("       Support: http://blackfin.uclinux.org/\n");
  24         return 0;
  25 }
  26
  27 #ifdef CONFIG_BFIN_MAC
  28 static 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_ethaddr(mac_addr))
  44                         valid_mac = true;
  45         }
  46
  47         if (!valid_mac) {
  48                 puts("Warning: Generating 'random' MAC address\n");
  49                 net_random_ethaddr(mac_addr);
  50         }
  51
  52         eth_setenv_enetaddr("ethaddr", mac_addr);
  53 }
  54
  55 int board_eth_init(bd_t *bis)
  56 {
  57         return bfin_EMAC_initialize(bis);
  58 }
  59 #endif
  60
  61 int 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
  72 #ifdef CONFIG_USB_BLACKFIN
  73 void board_musb_init(void)
  74 {
  75         /*
  76          * BF527 EZ-KITs require PG13 to be high for HOST mode
  77          */
  78         gpio_request(GPIO_PG13, "musb-vbus");
  79         gpio_direction_output(GPIO_PG13, 1);
  80 }
  81 #endif