board/amlogic/odroid-c2/odroid-c2.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/gxbb.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 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_RGMII, 0);
  32
  33         /* Enable power and clock gate */
  34         setbits_le32(GXBB_GCLK_MPEG_0, GXBB_GCLK_MPEG_0_I2C);
  35
  36         /* Reset PHY on GPIOZ_14 */
  37         clrbits_le32(GXBB_GPIO_EN(3), BIT(14));
  38         clrbits_le32(GXBB_GPIO_OUT(3), BIT(14));
  39         mdelay(10);
  40         setbits_le32(GXBB_GPIO_OUT(3), BIT(14));
  41
  42         if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
  43                 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
  44                                           mac_addr, EFUSE_MAC_SIZE);
  45                 if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
  46                         eth_env_set_enetaddr("ethaddr", mac_addr);
  47         }
  48
  49         if (!env_get("serial#")) {
  50                 len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
  51                         EFUSE_SN_SIZE);
  52                 if (len == EFUSE_SN_SIZE)
  53                         env_set("serial#", serial);
  54         }
  55
  56         return 0;
  57 }
  58
  59 int ft_board_setup(void *blob, bd_t *bd)
  60 {
  61         meson_gx_init_reserved_memory(blob);
  62
  63         return 0;
  64 }