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 <dm.h> 9 #include <asm/io.h> 10 #include <asm/arch/gxbb.h> 11 #include <asm/arch/sm.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 int misc_init_r(void) 25 { 26 u8 mac_addr[EFUSE_MAC_SIZE]; 27 char serial[EFUSE_SN_SIZE]; 28 ssize_t len; 29 30 /* Set RGMII mode */ 31 setbits_le32(GXBB_ETH_REG_0, GXBB_ETH_REG_0_PHY_INTF | 32 GXBB_ETH_REG_0_TX_PHASE(1) | 33 GXBB_ETH_REG_0_TX_RATIO(4) | 34 GXBB_ETH_REG_0_PHY_CLK_EN | 35 GXBB_ETH_REG_0_CLK_EN); 36 37 /* Enable power and clock gate */ 38 setbits_le32(GXBB_GCLK_MPEG_1, GXBB_GCLK_MPEG_1_ETH); 39 clrbits_le32(GXBB_MEM_PD_REG_0, GXBB_MEM_PD_REG_0_ETH_MASK); 40 41 /* Reset PHY on GPIOZ_14 */ 42 clrbits_le32(GXBB_GPIO_EN(3), BIT(14)); 43 clrbits_le32(GXBB_GPIO_OUT(3), BIT(14)); 44 mdelay(10); 45 setbits_le32(GXBB_GPIO_OUT(3), BIT(14)); 46 47 if (!eth_env_get_enetaddr("ethaddr", mac_addr)) { 48 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET, 49 mac_addr, EFUSE_MAC_SIZE); 50 if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr)) 51 eth_env_set_enetaddr("ethaddr", mac_addr); 52 } 53 54 if (!env_get("serial#")) { 55 len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial, 56 EFUSE_SN_SIZE); 57 if (len == EFUSE_SN_SIZE) 58 env_set("serial#", serial); 59 } 60 61 return 0; 62 } 63