board/amlogic/p200/p200.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 <environment.h>
   9 #include <asm/io.h>
  10 #include <asm/arch/gx.h>
  11 #include <asm/arch/sm.h>
  12 #include <asm/arch/eth.h>
  13 #include <asm/arch/mem.h>
  14
  15 #define EFUSE_SN_OFFSET         20
  16 #define EFUSE_SN_SIZE           16
  17 #define EFUSE_MAC_OFFSET        52
  18 #define EFUSE_MAC_SIZE          6
  19
  20 int misc_init_r(void)
  21 {
  22         u8 mac_addr[EFUSE_MAC_SIZE];
  23         char serial[EFUSE_SN_SIZE];
  24         ssize_t len;
  25
  26         meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
  27
  28         if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
  29                 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
  30                                           mac_addr, EFUSE_MAC_SIZE);
  31                 if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
  32                         eth_env_set_enetaddr("ethaddr", mac_addr);
  33         }
  34
  35         if (!env_get("serial#")) {
  36                 len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
  37                         EFUSE_SN_SIZE);
  38                 if (len == EFUSE_SN_SIZE)
  39                         env_set("serial#", serial);
  40         }
  41
  42         return 0;
  43 }