1 /* 2 * Copyright (C) 2011 Simon Guinot <sguinot@lacie.com> 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of 7 * the License, or (at your option) any later version. 8 */ 9 10 #include <common.h> 11 #include <i2c.h> 12 #include <miiphy.h> 13 14 #if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R) 15 16 #define MV88E1116_LED_FCTRL_REG 10 17 #define MV88E1116_CPRSP_CR3_REG 21 18 #define MV88E1116_MAC_CTRL_REG 21 19 #define MV88E1116_PGADR_REG 22 20 #define MV88E1116_RGMII_TXTM_CTRL (1 << 4) 21 #define MV88E1116_RGMII_RXTM_CTRL (1 << 5) 22 23 void mv_phy_88e1116_init(const char *name, u16 phyaddr) 24 { 25 u16 reg; 26 27 if (miiphy_set_current_dev(name)) 28 return; 29 30 /* 31 * Enable RGMII delay on Tx and Rx for CPU port 32 * Ref: sec 4.7.2 of chip datasheet 33 */ 34 miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 2); 35 miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, ®); 36 reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL); 37 miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg); 38 miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 0); 39 40 if (miiphy_reset(name, phyaddr) == 0) 41 printf("88E1116 Initialized on %s\n", name); 42 } 43 #endif /* CONFIG_CMD_NET && CONFIG_RESET_PHY_R */ 44 45 #if defined(CONFIG_CMD_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR) 46 int lacie_read_mac_address(uchar *mac_addr) 47 { 48 int ret; 49 ushort version; 50 51 /* I2C-0 for on-board EEPROM */ 52 i2c_set_bus_num(0); 53 54 /* Check layout version for EEPROM data */ 55 ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 56 CONFIG_SYS_I2C_EEPROM_ADDR_LEN, 57 (uchar *) &version, 2); 58 if (ret != 0) { 59 printf("Error: failed to read I2C EEPROM @%02x\n", 60 CONFIG_SYS_I2C_EEPROM_ADDR); 61 return ret; 62 } 63 version = be16_to_cpu(version); 64 if (version < 1 || version > 3) { 65 printf("Error: unknown version %d for EEPROM data\n", 66 version); 67 return -1; 68 } 69 70 /* Read Ethernet MAC address from EEPROM */ 71 ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 2, 72 CONFIG_SYS_I2C_EEPROM_ADDR_LEN, mac_addr, 6); 73 if (ret != 0) 74 printf("Error: failed to read I2C EEPROM @%02x\n", 75 CONFIG_SYS_I2C_EEPROM_ADDR); 76 return ret; 77 } 78 #endif /* CONFIG_CMD_I2C && CONFIG_SYS_I2C_EEPROM_ADDR */ 79