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         /* the MAC is stored in OTP memory page 0xDF */
  31         uint32_t ret;
  32         uint64_t otp_mac;
  33
  34         ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
  35         if (!(ret & OTP_MASTER_ERROR)) {
  36                 uchar *otp_mac_p = (uchar *)&otp_mac;
  37
  38                 for (ret = 0; ret < 6; ++ret)
  39                         mac_addr[ret] = otp_mac_p[5 - ret];
  40
  41                 if (is_valid_ethaddr(mac_addr))
  42                         eth_setenv_enetaddr("ethaddr", mac_addr);
  43         }
  44 }
  45
  46 int board_eth_init(bd_t *bis)
  47 {
  48         return bfin_EMAC_initialize(bis);
  49 }
  50 #endif
  51
  52 int misc_init_r(void)
  53 {
  54 #ifdef CONFIG_BFIN_MAC
  55         uchar enetaddr[6];
  56         if (!eth_getenv_enetaddr("ethaddr", enetaddr))
  57                 board_init_enetaddr(enetaddr);
  58 #endif
  59
  60         return 0;
  61 }
  62
  63 #ifdef CONFIG_USB_BLACKFIN
  64 void board_musb_init(void)
  65 {
  66         /*
  67          * BF527 EZ-KITs require PG13 to be high for HOST mode
  68          */
  69         gpio_request(GPIO_PG13, "musb-vbus");
  70         gpio_direction_output(GPIO_PG13, 1);
  71 }
  72 #endif