common.c 2.7 KB

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