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 <environment.h>
  10 #include <asm/io.h>
  11 #include <asm/arch/gx.h>
  12 #include <asm/arch/sm.h>
  13 #include <asm/arch/eth.h>
  14 #include <asm/arch/mem.h>
  15
  16 #define EFUSE_SN_OFFSET         20
  17 #define EFUSE_SN_SIZE           16
  18 #define EFUSE_MAC_OFFSET        52
  19 #define EFUSE_MAC_SIZE          6
  20
  21 int misc_init_r(void)
  22 {
  23         u8 mac_addr[EFUSE_MAC_SIZE];
  24         char serial[EFUSE_SN_SIZE];
  25         ssize_t len;
  26
  27         meson_eth_init(PHY_INTERFACE_MODE_RMII,
  28                        MESON_USE_INTERNAL_RMII_PHY);
  29
  30         if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
  31                 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
  32                                           mac_addr, EFUSE_MAC_SIZE);
  33                 if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
  34                         eth_env_set_enetaddr("ethaddr", mac_addr);
  35         }
  36
  37         if (!env_get("serial#")) {
  38                 len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
  39                         EFUSE_SN_SIZE);
  40                 if (len == EFUSE_SN_SIZE)
  41                         env_set("serial#", serial);
  42         }
  43
  44         return 0;
  45 }