board/amlogic/p212/p212.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 BayLibre, SAS
   4  * Author: Neil Armstrong <narmstrong@baylibre.com>
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <env.h>
  10 #include <net.h>
  11 #include <asm/io.h>
  12 #include <asm/arch/gx.h>
  13 #include <asm/arch/sm.h>
  14 #include <asm/arch/eth.h>
  15 #include <asm/arch/mem.h>
  16
  17 #define EFUSE_SN_OFFSET         20
  18 #define EFUSE_SN_SIZE           16
  19 #define EFUSE_MAC_OFFSET        52
  20 #define EFUSE_MAC_SIZE          6
  21
  22 int misc_init_r(void)
  23 {
  24         u8 mac_addr[EFUSE_MAC_SIZE];
  25         char serial[EFUSE_SN_SIZE];
  26         ssize_t len;
  27
  28         meson_eth_init(PHY_INTERFACE_MODE_RMII,
  29                        MESON_USE_INTERNAL_RMII_PHY);
  30
  31         if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
  32                 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
  33                                           mac_addr, EFUSE_MAC_SIZE);
  34                 if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
  35                         eth_env_set_enetaddr("ethaddr", mac_addr);
  36                 else
  37                         meson_generate_serial_ethaddr();
  38         }
  39
  40         if (!env_get("serial#")) {
  41                 len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
  42                         EFUSE_SN_SIZE);
  43                 if (len == EFUSE_SN_SIZE)
  44                         env_set("serial#", serial);
  45         }
  46
  47         return 0;
  48 }