board/amlogic/libretech-cc/libretech-cc.c

   1 /*
   2  * Copyright (C) 2016 BayLibre, SAS
   3  * Author: Neil Armstrong <narmstrong@baylibre.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <dm.h>
  10 #include <asm/io.h>
  11 #include <asm/arch/gxbb.h>
  12 #include <asm/arch/sm.h>
  13 #include <asm/arch/eth.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 board_init(void)
  21 {
  22         return 0;
  23 }
  24
  25 int misc_init_r(void)
  26 {
  27         u8 mac_addr[EFUSE_MAC_SIZE];
  28         char serial[EFUSE_SN_SIZE];
  29         ssize_t len;
  30
  31         meson_gx_eth_init(PHY_INTERFACE_MODE_RMII,
  32                           MESON_GXL_USE_INTERNAL_RMII_PHY);
  33
  34         /* Enable power and clock gate */
  35         setbits_le32(GXBB_GCLK_MPEG_1, GXBB_GCLK_MPEG_1_ETH);
  36         clrbits_le32(GXBB_MEM_PD_REG_0, GXBB_MEM_PD_REG_0_ETH_MASK);
  37
  38         if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
  39                 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
  40                                           mac_addr, EFUSE_MAC_SIZE);
  41                 if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
  42                         eth_env_set_enetaddr("ethaddr", mac_addr);
  43         }
  44
  45         if (!env_get("serial#")) {
  46                 len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
  47                                           EFUSE_SN_SIZE);
  48                 if (len == EFUSE_SN_SIZE)
  49                         env_set("serial#", serial);
  50         }
  51
  52         return 0;
  53 }