board/amlogic/odroid-c2/odroid-c2.c

   1 /*
   2  * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <asm/arch/gxbb.h>
  10 #include <asm/arch/sm.h>
  11 #include <dm/platdata.h>
  12 #include <phy.h>
  13
  14 #define EFUSE_SN_OFFSET         20
  15 #define EFUSE_SN_SIZE           16
  16 #define EFUSE_MAC_OFFSET        52
  17 #define EFUSE_MAC_SIZE          6
  18
  19 int board_init(void)
  20 {
  21         return 0;
  22 }
  23
  24 static const struct eth_pdata gxbb_eth_pdata = {
  25         .iobase = GXBB_ETH_BASE,
  26         .phy_interface = PHY_INTERFACE_MODE_RGMII,
  27 };
  28
  29 U_BOOT_DEVICE(meson_eth) = {
  30         .name = "eth_designware",
  31         .platdata = &gxbb_eth_pdata,
  32 };
  33
  34 int misc_init_r(void)
  35 {
  36         u8 mac_addr[EFUSE_MAC_SIZE];
  37         ssize_t len;
  38
  39         /* Select Ethernet function */
  40         setbits_le32(GXBB_PINMUX(6), 0x3fff);
  41
  42         /* Set RGMII mode */
  43         setbits_le32(GXBB_ETH_REG_0, GXBB_ETH_REG_0_PHY_INTF |
  44                                      GXBB_ETH_REG_0_TX_PHASE(1) |
  45                                      GXBB_ETH_REG_0_TX_RATIO(4) |
  46                                      GXBB_ETH_REG_0_PHY_CLK_EN |
  47                                      GXBB_ETH_REG_0_CLK_EN);
  48
  49         /* Enable power and clock gate */
  50         setbits_le32(GXBB_GCLK_MPEG_1, GXBB_GCLK_MPEG_1_ETH);
  51         clrbits_le32(GXBB_MEM_PD_REG_0, GXBB_MEM_PD_REG_0_ETH_MASK);
  52
  53         /* Reset PHY on GPIOZ_14 */
  54         clrbits_le32(GXBB_GPIO_EN(3), BIT(14));
  55         clrbits_le32(GXBB_GPIO_OUT(3), BIT(14));
  56         mdelay(10);
  57         setbits_le32(GXBB_GPIO_OUT(3), BIT(14));
  58
  59         if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
  60                 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
  61                                           mac_addr, EFUSE_MAC_SIZE);
  62                 if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
  63                         eth_setenv_enetaddr("ethaddr", mac_addr);
  64         }
  65
  66         return 0;
  67 }