board/amlogic/p201/p201.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <env.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, 0);
  28
  29         if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
  30                 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
  31                                           mac_addr, EFUSE_MAC_SIZE);
  32                 if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
  33                         eth_env_set_enetaddr("ethaddr", mac_addr);
  34         }
  35
  36         if (!env_get("serial#")) {
  37                 len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
  38                         EFUSE_SN_SIZE);
  39                 if (len == EFUSE_SN_SIZE)
  40                         env_set("serial#", serial);
  41         }
  42
  43         return 0;
  44 }