LXR uboot/board/LaCie/common/common.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
   4 */
   5
   6#include <common.h>
   7#include <i2c.h>
   8#include <miiphy.h>
   9
  10#if defined(CONFIG_CMD_NET) && defined(CONFIG_RESET_PHY_R)
  11
  12#define MII_MARVELL_PHY_PAGE            22
  13
  14#define MV88E1116_LED_FCTRL_REG         10
  15#define MV88E1116_CPRSP_CR3_REG         21
  16#define MV88E1116_MAC_CTRL_REG          21
  17#define MV88E1116_RGMII_TXTM_CTRL       (1 << 4)
  18#define MV88E1116_RGMII_RXTM_CTRL       (1 << 5)
  19
  20void mv_phy_88e1116_init(const char *name, u16 phyaddr)
  21{
  22        u16 reg;
  23
  24        if (miiphy_set_current_dev(name))
  25                return;
  26
  27        /*
  28         * Enable RGMII delay on Tx and Rx for CPU port
  29         * Ref: sec 4.7.2 of chip datasheet
  30         */
  31        miiphy_write(name, phyaddr, MII_MARVELL_PHY_PAGE, 2);
  32        miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, &reg);
  33        reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
  34        miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg);
  35        miiphy_write(name, phyaddr, MII_MARVELL_PHY_PAGE, 0);
  36
  37        if (miiphy_reset(name, phyaddr) == 0)
  38                printf("88E1116 Initialized on %s\n", name);
  39}
  40
  41void mv_phy_88e1318_init(const char *name, u16 phyaddr)
  42{
  43        u16 reg;
  44
  45        if (miiphy_set_current_dev(name))
  46                return;
  47
  48        /*
  49         * Set control mode 4 for LED[0].
  50         */
  51        miiphy_write(name, phyaddr, MII_MARVELL_PHY_PAGE, 3);
  52        miiphy_read(name, phyaddr, 16, &reg);
  53        reg |= 0xf;
  54        miiphy_write(name, phyaddr, 16, reg);
  55
  56        /*
  57         * Enable RGMII delay on Tx and Rx for CPU port
  58         * Ref: sec 4.7.2 of chip datasheet
  59         */
  60        miiphy_write(name, phyaddr, MII_MARVELL_PHY_PAGE, 2);
  61        miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, &reg);
  62        reg |= (MV88E1116_RGMII_TXTM_CTRL | MV88E1116_RGMII_RXTM_CTRL);
  63        miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg);
  64        miiphy_write(name, phyaddr, MII_MARVELL_PHY_PAGE, 0);
  65
  66        if (miiphy_reset(name, phyaddr) == 0)
  67                printf("88E1318 Initialized on %s\n", name);
  68}
  69#endif /* CONFIG_CMD_NET && CONFIG_RESET_PHY_R */
  70
  71#if defined(CONFIG_CMD_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR)
  72int lacie_read_mac_address(uchar *mac_addr)
  73{
  74        int ret;
  75        ushort version;
  76
  77        /* I2C-0 for on-board EEPROM */
  78        i2c_set_bus_num(0);
  79
  80        /* Check layout version for EEPROM data */
  81        ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
  82                        CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
  83                        (uchar *) &version, 2);
  84        if (ret != 0) {
  85                printf("Error: failed to read I2C EEPROM @%02x\n",
  86                        CONFIG_SYS_I2C_EEPROM_ADDR);
  87                return ret;
  88        }
  89        version = be16_to_cpu(version);
  90        if (version < 1 || version > 3) {
  91                printf("Error: unknown version %d for EEPROM data\n",
  92                        version);
  93                return -1;
  94        }
  95
  96        /* Read Ethernet MAC address from EEPROM */
  97        ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 2,
  98                        CONFIG_SYS_I2C_EEPROM_ADDR_LEN, mac_addr, 6);
  99        if (ret != 0)
 100                printf("Error: failed to read I2C EEPROM @%02x\n",
 101                        CONFIG_SYS_I2C_EEPROM_ADDR);
 102        return ret;
 103}
 104#endif /* CONFIG_CMD_I2C && CONFIG_SYS_I2C_EEPROM_ADDR */
 105