miiphy.h 6.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 OR IBM-pibs */
  2. /*
  3. * Additions (C) Copyright 2009 Industrie Dial Face S.p.A.
  4. */
  5. /*----------------------------------------------------------------------------+
  6. |
  7. | File Name: miiphy.h
  8. |
  9. | Function: Include file defining PHY registers.
  10. |
  11. | Author: Mark Wisner
  12. |
  13. +----------------------------------------------------------------------------*/
  14. #ifndef _miiphy_h_
  15. #define _miiphy_h_
  16. #include <common.h>
  17. #include <linux/mii.h>
  18. #include <linux/list.h>
  19. #include <net.h>
  20. #include <phy.h>
  21. int miiphy_read(const char *devname, unsigned char addr, unsigned char reg,
  22. unsigned short *value);
  23. int miiphy_write(const char *devname, unsigned char addr, unsigned char reg,
  24. unsigned short value);
  25. int miiphy_info(const char *devname, unsigned char addr, unsigned int *oui,
  26. unsigned char *model, unsigned char *rev);
  27. int miiphy_reset(const char *devname, unsigned char addr);
  28. int miiphy_speed(const char *devname, unsigned char addr);
  29. int miiphy_duplex(const char *devname, unsigned char addr);
  30. int miiphy_is_1000base_x(const char *devname, unsigned char addr);
  31. #ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
  32. int miiphy_link(const char *devname, unsigned char addr);
  33. #endif
  34. void miiphy_init(void);
  35. int miiphy_set_current_dev(const char *devname);
  36. const char *miiphy_get_current_dev(void);
  37. struct mii_dev *mdio_get_current_dev(void);
  38. struct list_head *mdio_get_list_head(void);
  39. struct mii_dev *miiphy_get_dev_by_name(const char *devname);
  40. struct phy_device *mdio_phydev_for_ethname(const char *devname);
  41. void miiphy_listdev(void);
  42. struct mii_dev *mdio_alloc(void);
  43. void mdio_free(struct mii_dev *bus);
  44. int mdio_register(struct mii_dev *bus);
  45. /**
  46. * mdio_register_seq - Register mdio bus with sequence number
  47. * @bus: mii device structure
  48. * @seq: sequence number
  49. *
  50. * Return: 0 if success, negative value if error
  51. */
  52. int mdio_register_seq(struct mii_dev *bus, int seq);
  53. int mdio_unregister(struct mii_dev *bus);
  54. void mdio_list_devices(void);
  55. #ifdef CONFIG_BITBANGMII
  56. #define BB_MII_DEVNAME "bb_miiphy"
  57. struct bb_miiphy_bus {
  58. char name[16];
  59. int (*init)(struct bb_miiphy_bus *bus);
  60. int (*mdio_active)(struct bb_miiphy_bus *bus);
  61. int (*mdio_tristate)(struct bb_miiphy_bus *bus);
  62. int (*set_mdio)(struct bb_miiphy_bus *bus, int v);
  63. int (*get_mdio)(struct bb_miiphy_bus *bus, int *v);
  64. int (*set_mdc)(struct bb_miiphy_bus *bus, int v);
  65. int (*delay)(struct bb_miiphy_bus *bus);
  66. #ifdef CONFIG_BITBANGMII_MULTI
  67. void *priv;
  68. #endif
  69. };
  70. extern struct bb_miiphy_bus bb_miiphy_buses[];
  71. extern int bb_miiphy_buses_num;
  72. /**
  73. * bb_miiphy_init() - Initialize bit-banged MII bus driver
  74. *
  75. * It is called during the generic post-relocation init sequence.
  76. *
  77. * Return: 0 if OK
  78. */
  79. int bb_miiphy_init(void);
  80. int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
  81. int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
  82. u16 value);
  83. #endif
  84. /* phy seed setup */
  85. #define AUTO 99
  86. #define _1000BASET 1000
  87. #define _100BASET 100
  88. #define _10BASET 10
  89. #define HALF 22
  90. #define FULL 44
  91. /* phy register offsets */
  92. #define MII_MIPSCR 0x11
  93. /* MII_LPA */
  94. #define PHY_ANLPAR_PSB_802_3 0x0001
  95. #define PHY_ANLPAR_PSB_802_9 0x0002
  96. /* MII_CTRL1000 masks */
  97. #define PHY_1000BTCR_1000FD 0x0200
  98. #define PHY_1000BTCR_1000HD 0x0100
  99. /* MII_STAT1000 masks */
  100. #define PHY_1000BTSR_MSCF 0x8000
  101. #define PHY_1000BTSR_MSCR 0x4000
  102. #define PHY_1000BTSR_LRS 0x2000
  103. #define PHY_1000BTSR_RRS 0x1000
  104. #define PHY_1000BTSR_1000FD 0x0800
  105. #define PHY_1000BTSR_1000HD 0x0400
  106. /* phy EXSR */
  107. #define ESTATUS_1000XF 0x8000
  108. #define ESTATUS_1000XH 0x4000
  109. /**
  110. * struct mdio_perdev_priv - Per-device class data for MDIO DM
  111. *
  112. * @mii_bus: Supporting MII legacy bus
  113. */
  114. struct mdio_perdev_priv {
  115. struct mii_dev *mii_bus;
  116. };
  117. /**
  118. * struct mdio_ops - MDIO bus operations
  119. *
  120. * @read: Read from a PHY register
  121. * @write: Write to a PHY register
  122. * @reset: Reset the MDIO bus, NULL if not supported
  123. */
  124. struct mdio_ops {
  125. int (*read)(struct udevice *mdio_dev, int addr, int devad, int reg);
  126. int (*write)(struct udevice *mdio_dev, int addr, int devad, int reg,
  127. u16 val);
  128. int (*reset)(struct udevice *mdio_dev);
  129. };
  130. #define mdio_get_ops(dev) ((struct mdio_ops *)(dev)->driver->ops)
  131. /**
  132. * dm_mdio_probe_devices - Call probe on all MII devices, currently used for
  133. * MDIO console commands.
  134. */
  135. void dm_mdio_probe_devices(void);
  136. /**
  137. * dm_mdio_read - Wrapper over .read() operation for DM MDIO
  138. *
  139. * @mdiodev: mdio device
  140. * @addr: PHY address on MDIO bus
  141. * @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
  142. * @reg: register address
  143. * Return: register value if non-negative, -error code otherwise
  144. */
  145. int dm_mdio_read(struct udevice *mdio_dev, int addr, int devad, int reg);
  146. /**
  147. * dm_mdio_write - Wrapper over .write() operation for DM MDIO
  148. *
  149. * @mdiodev: mdio device
  150. * @addr: PHY address on MDIO bus
  151. * @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
  152. * @reg: register address
  153. * @val: value to write
  154. * Return: 0 on success, -error code otherwise
  155. */
  156. int dm_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg, u16 val);
  157. /**
  158. * dm_mdio_reset - Wrapper over .reset() operation for DM MDIO
  159. *
  160. * @mdiodev: mdio device
  161. * Return: 0 on success, -error code otherwise
  162. */
  163. int dm_mdio_reset(struct udevice *mdio_dev);
  164. /**
  165. * dm_phy_find_by_ofnode - Find PHY device by ofnode
  166. *
  167. * @phynode: PHY's ofnode
  168. *
  169. * Return: pointer to phy_device, or NULL on error
  170. */
  171. struct phy_device *dm_phy_find_by_ofnode(ofnode phynode);
  172. /**
  173. * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO
  174. *
  175. * @mdiodev: mdio device the PHY is accesible on
  176. * @phyaddr: PHY address on MDIO bus
  177. * @ethdev: ethernet device to connect to the PHY
  178. * @interface: MAC-PHY protocol
  179. *
  180. * Return: pointer to phy_device, or 0 on error
  181. */
  182. struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr,
  183. struct udevice *ethdev,
  184. phy_interface_t interface);
  185. /**
  186. * dm_eth_phy_connect - Connect an Eth device to a PHY based on device tree
  187. *
  188. * Picks up the DT phy-handle and phy-mode from ethernet device node and
  189. * connects the ethernet device to the linked PHY.
  190. *
  191. * @ethdev: ethernet device
  192. *
  193. * Return: pointer to phy_device, or 0 on error
  194. */
  195. struct phy_device *dm_eth_phy_connect(struct udevice *ethdev);
  196. /* indicates none of the child buses is selected */
  197. #define MDIO_MUX_SELECT_NONE -1
  198. /**
  199. * struct mdio_mux_ops - MDIO MUX operations
  200. *
  201. * @select: Selects a child bus
  202. * @deselect: Clean up selection. Optional, can be NULL
  203. */
  204. struct mdio_mux_ops {
  205. int (*select)(struct udevice *mux, int cur, int sel);
  206. int (*deselect)(struct udevice *mux, int sel);
  207. };
  208. #define mdio_mux_get_ops(dev) ((struct mdio_mux_ops *)(dev)->driver->ops)
  209. #endif