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) 24 { 25 u16 reg; 26 u16 devadr; 27 28 if (miiphy_set_current_dev(name)) 29 return; 30 31 /* command to read PHY dev address */ 32 if (miiphy_read(name, 0xEE, 0xEE, (u16 *) &devadr)) { 33 printf("Err..(%s) could not read PHY dev address\n", __func__); 34 return; 35 } 36 37 /* 38 * Enable RGMII delay on Tx and Rx for CPU port 39 * Ref: sec 4.7.2 of chip datasheet 40 */ 41 miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2); 42 miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, ®); 43 reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL); 44 miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg); 45 miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0); 46 47 /* reset the phy */ 48 miiphy_reset(name, devadr); 49 50 printf("88E1116 Initialized on %s\n", name); 51 } 52 #endif /* CONFIG_CMD_NET && CONFIG_RESET_PHY_R */ 53 54 #if defined(CONFIG_CMD_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR) 55 int lacie_read_mac_address(uchar *mac_addr) 56 { 57 int ret; 58 ushort version; 59 60 /* I2C-0 for on-board EEPROM */ 61 i2c_set_bus_num(0); 62 63 /* Check layout version for EEPROM data */ 64 ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 65 CONFIG_SYS_I2C_EEPROM_ADDR_LEN, 66 (uchar *) &version, 2); 67 if (ret != 0) { 68 printf("Error: failed to read I2C EEPROM @%02x\n", 69 CONFIG_SYS_I2C_EEPROM_ADDR); 70 return ret; 71 } 72 version = be16_to_cpu(version); 73 if (version < 1 || version > 3) { 74 printf("Error: unknown version %d for EEPROM data\n", 75 version); 76 return -1; 77 } 78 79 /* Read Ethernet MAC address from EEPROM */ 80 ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 2, 81 CONFIG_SYS_I2C_EEPROM_ADDR_LEN, mac_addr, 6); 82 if (ret != 0) 83 printf("Error: failed to read I2C EEPROM @%02x\n", 84 CONFIG_SYS_I2C_EEPROM_ADDR); 85 return ret; 86 } 87 #endif /* CONFIG_CMD_I2C && CONFIG_SYS_I2C_EEPROM_ADDR */ 88