board/amlogic/q200/q200.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 <environment.h>
  11 #include <asm/io.h>
  12 #include <asm/arch/gx.h>
  13 #include <asm/arch/mem.h>
  14 #include <asm/arch/sm.h>
  15 #include <asm/arch/eth.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_RGMII, 0);
  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                 else
  36                         meson_generate_serial_ethaddr();
  37         }
  38
  39         if (!env_get("serial#")) {
  40                 len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
  41                                           EFUSE_SN_SIZE);
  42                 if (len == EFUSE_SN_SIZE)
  43                         env_set("serial#", serial);
  44         }
  45
  46         return 0;
  47 }