1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright 2011 Freescale Semiconductor, Inc.
4 * Andy Fleming <afleming@gmail.com>
6 * This file pretty much stolen from Linux's mii.h/ethtool.h/phy.h
13 #include <phy_interface.h>
14 #include <dm/ofnode.h>
16 #include <linux/errno.h>
17 #include <linux/list.h>
18 #include <linux/mii.h>
19 #include <linux/ethtool.h>
20 #include <linux/mdio.h>
24 #define PHY_FIXED_ID 0xa5a55a5a
25 #define PHY_NCSI_ID 0xbeefcafe
28 * There is no actual id for this.
29 * This is just a dummy id for gmii2rgmmi converter.
31 #define PHY_GMII2RGMII_ID 0x5a5a5a5a
33 #define PHY_MAX_ADDR 32
35 #define PHY_FLAG_BROKEN_RESET (1 << 0) /* soft reset not supported */
37 #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
41 #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
42 SUPPORTED_10baseT_Full)
44 #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
45 SUPPORTED_100baseT_Full)
47 #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
48 SUPPORTED_1000baseT_Full)
50 #define PHY_BASIC_FEATURES (PHY_10BT_FEATURES | \
51 PHY_100BT_FEATURES | \
54 #define PHY_100BT1_FEATURES (SUPPORTED_TP | \
56 SUPPORTED_100baseT_Full)
58 #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \
61 #define PHY_10G_FEATURES (PHY_GBIT_FEATURES | \
62 SUPPORTED_10000baseT_Full)
64 #ifndef PHY_ANEG_TIMEOUT
65 #define PHY_ANEG_TIMEOUT 4000
71 #define MDIO_NAME_LEN 32
74 struct list_head link;
75 char name[MDIO_NAME_LEN];
77 int (*read)(struct mii_dev *bus, int addr, int devad, int reg);
78 int (*write)(struct mii_dev *bus, int addr, int devad, int reg,
80 int (*reset)(struct mii_dev *bus);
81 struct phy_device *phymap[PHY_MAX_ADDR];
85 /* struct phy_driver: a structure which defines PHY behavior
87 * uid will contain a number which represents the PHY. During
88 * startup, the driver will poll the PHY to find out what its
89 * UID--as defined by registers 2 and 3--is. The 32-bit result
90 * gotten from the PHY will be masked to
91 * discard any bits which may change based on revision numbers
92 * unimportant to functionality
103 /* Called to do any driver startup necessities */
104 /* Will be called during phy_connect */
105 int (*probe)(struct phy_device *phydev);
107 /* Called to configure the PHY, and modify the controller
108 * based on the results. Should be called after phy_connect */
109 int (*config)(struct phy_device *phydev);
111 /* Called when starting up the controller */
112 int (*startup)(struct phy_device *phydev);
114 /* Called when bringing down the controller */
115 int (*shutdown)(struct phy_device *phydev);
117 int (*readext)(struct phy_device *phydev, int addr, int devad, int reg);
118 int (*writeext)(struct phy_device *phydev, int addr, int devad, int reg,
121 /* Phy specific driver override for reading a MMD register */
122 int (*read_mmd)(struct phy_device *phydev, int devad, int reg);
124 /* Phy specific driver override for writing a MMD register */
125 int (*write_mmd)(struct phy_device *phydev, int devad, int reg,
128 struct list_head list;
130 /* driver private data */
135 /* Information about the PHY type */
136 /* And management functions */
138 struct phy_driver *drv;
145 struct eth_device *dev;
148 /* forced speed & duplex (no autoneg)
149 * partner speed & duplex & pause (autoneg)
154 /* The most recently read link state */
157 phy_interface_t interface;
180 #ifdef CONFIG_PHYLIB_10G
181 extern struct phy_driver gen10g_driver;
185 * phy_init() - Initializes the PHY drivers
186 * This function registers all available PHY drivers
188 * @return: 0 if OK, -ve on error
193 * phy_reset() - Resets the specified PHY
194 * Issues a reset of the PHY and waits for it to complete
196 * @phydev: PHY to reset
197 * @return: 0 if OK, -ve on error
199 int phy_reset(struct phy_device *phydev);
202 * phy_find_by_mask() - Searches for a PHY on the specified MDIO bus
203 * The function checks the PHY addresses flagged in phy_mask and returns a
204 * phy_device pointer if it detects a PHY.
205 * This function should only be called if just one PHY is expected to be present
206 * in the set of addresses flagged in phy_mask. If multiple PHYs are present,
207 * it is undefined which of these PHYs is returned.
209 * @bus: MII/MDIO bus to scan
210 * @phy_mask: bitmap of PYH addresses to scan
211 * @return: pointer to phy_device if a PHY is found, or NULL otherwise
213 struct phy_device *phy_find_by_mask(struct mii_dev *bus, unsigned phy_mask);
215 #ifdef CONFIG_PHY_FIXED
218 * fixed_phy_create() - create an unconnected fixed-link pseudo-PHY device
219 * @node: OF node for the container of the fixed-link node
221 * Description: Creates a struct phy_device based on a fixed-link of_node
222 * description. Can be used without phy_connect by drivers which do not expose
223 * a UCLASS_ETH udevice.
225 struct phy_device *fixed_phy_create(ofnode node);
229 static inline struct phy_device *fixed_phy_create(ofnode node)
239 * phy_connect_dev() - Associates the given pair of PHY and Ethernet devices
240 * @phydev: PHY device
241 * @dev: Ethernet device
242 * @interface: type of MAC-PHY interface
244 void phy_connect_dev(struct phy_device *phydev, struct udevice *dev,
245 phy_interface_t interface);
248 * phy_connect() - Creates a PHY device for the Ethernet interface
249 * Creates a PHY device for the PHY at the given address, if one doesn't exist
250 * already, and associates it with the Ethernet device.
251 * The function may be called with addr <= 0, in this case addr value is ignored
252 * and the bus is scanned to detect a PHY. Scanning should only be used if only
253 * one PHY is expected to be present on the MDIO bus, otherwise it is undefined
254 * which PHY is returned.
256 * @bus: MII/MDIO bus that hosts the PHY
257 * @addr: PHY address on MDIO bus
258 * @dev: Ethernet device to associate to the PHY
259 * @interface: type of MAC-PHY interface
260 * @return: pointer to phy_device if a PHY is found, or NULL otherwise
262 struct phy_device *phy_connect(struct mii_dev *bus, int addr,
264 phy_interface_t interface);
266 * phy_device_create() - Create a PHY device
268 * @bus: MII/MDIO bus that hosts the PHY
269 * @addr: PHY address on MDIO bus
270 * @phy_id: where to store the ID retrieved
271 * @is_c45: Device Identifiers if is_c45
272 * @return: pointer to phy_device if a PHY is found, or NULL otherwise
274 struct phy_device *phy_device_create(struct mii_dev *bus, int addr,
275 u32 phy_id, bool is_c45);
278 * phy_connect_phy_id() - Connect to phy device by reading PHY id
281 * @bus: MII/MDIO bus that hosts the PHY
282 * @dev: Ethernet device to associate to the PHY
283 * @return: pointer to phy_device if a PHY is found,
286 struct phy_device *phy_connect_phy_id(struct mii_dev *bus, struct udevice *dev,
289 static inline ofnode phy_get_ofnode(struct phy_device *phydev)
291 if (ofnode_valid(phydev->node))
294 return dev_ofnode(phydev->dev);
299 * phy_connect_dev() - Associates the given pair of PHY and Ethernet devices
300 * @phydev: PHY device
301 * @dev: Ethernet device
302 * @interface: type of MAC-PHY interface
304 void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev,
305 phy_interface_t interface);
308 * phy_connect() - Creates a PHY device for the Ethernet interface
309 * Creates a PHY device for the PHY at the given address, if one doesn't exist
310 * already, and associates it with the Ethernet device.
311 * The function may be called with addr <= 0, in this case addr value is ignored
312 * and the bus is scanned to detect a PHY. Scanning should only be used if only
313 * one PHY is expected to be present on the MDIO bus, otherwise it is undefined
314 * which PHY is returned.
316 * @bus: MII/MDIO bus that hosts the PHY
317 * @addr: PHY address on MDIO bus
318 * @dev: Ethernet device to associate to the PHY
319 * @interface: type of MAC-PHY interface
320 * @return: pointer to phy_device if a PHY is found, or NULL otherwise
322 struct phy_device *phy_connect(struct mii_dev *bus, int addr,
323 struct eth_device *dev,
324 phy_interface_t interface);
326 static inline ofnode phy_get_ofnode(struct phy_device *phydev)
328 return ofnode_null();
332 int phy_read(struct phy_device *phydev, int devad, int regnum);
333 int phy_write(struct phy_device *phydev, int devad, int regnum, u16 val);
334 void phy_mmd_start_indirect(struct phy_device *phydev, int devad, int regnum);
335 int phy_read_mmd(struct phy_device *phydev, int devad, int regnum);
336 int phy_write_mmd(struct phy_device *phydev, int devad, int regnum, u16 val);
337 int phy_set_bits_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
338 int phy_clear_bits_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
340 int phy_startup(struct phy_device *phydev);
341 int phy_config(struct phy_device *phydev);
342 int phy_shutdown(struct phy_device *phydev);
343 int phy_register(struct phy_driver *drv);
344 int phy_set_supported(struct phy_device *phydev, u32 max_speed);
345 int phy_modify(struct phy_device *phydev, int devad, int regnum, u16 mask,
347 int genphy_config_aneg(struct phy_device *phydev);
348 int genphy_restart_aneg(struct phy_device *phydev);
349 int genphy_update_link(struct phy_device *phydev);
350 int genphy_parse_link(struct phy_device *phydev);
351 int genphy_config(struct phy_device *phydev);
352 int genphy_startup(struct phy_device *phydev);
353 int genphy_shutdown(struct phy_device *phydev);
354 int gen10g_config(struct phy_device *phydev);
355 int gen10g_startup(struct phy_device *phydev);
356 int gen10g_shutdown(struct phy_device *phydev);
357 int gen10g_discover_mmds(struct phy_device *phydev);
359 int phy_b53_init(void);
360 int phy_mv88e61xx_init(void);
361 int phy_adin_init(void);
362 int phy_aquantia_init(void);
363 int phy_atheros_init(void);
364 int phy_broadcom_init(void);
365 int phy_cortina_init(void);
366 int phy_cortina_access_init(void);
367 int phy_davicom_init(void);
368 int phy_et1011c_init(void);
369 int phy_lxt_init(void);
370 int phy_marvell_init(void);
371 int phy_micrel_ksz8xxx_init(void);
372 int phy_micrel_ksz90x1_init(void);
373 int phy_meson_gxl_init(void);
374 int phy_natsemi_init(void);
375 int phy_nxp_c45_tja11xx_init(void);
376 int phy_nxp_tja11xx_init(void);
377 int phy_realtek_init(void);
378 int phy_smsc_init(void);
379 int phy_teranetics_init(void);
380 int phy_ti_init(void);
381 int phy_vitesse_init(void);
382 int phy_xilinx_init(void);
383 int phy_mscc_init(void);
384 int phy_fixed_init(void);
385 int phy_ncsi_init(void);
386 int phy_xilinx_gmii2rgmii_init(void);
388 int board_phy_config(struct phy_device *phydev);
389 int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id);
392 * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
393 * is RGMII (all variants)
394 * @phydev: the phy_device struct
395 * @return: true if MII bus is RGMII or false if it is not
397 static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
399 return phydev->interface >= PHY_INTERFACE_MODE_RGMII &&
400 phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID;
404 * phy_interface_is_sgmii - Convenience function for testing if a PHY interface
405 * is SGMII (all variants)
406 * @phydev: the phy_device struct
407 * @return: true if MII bus is SGMII or false if it is not
409 static inline bool phy_interface_is_sgmii(struct phy_device *phydev)
411 return phydev->interface >= PHY_INTERFACE_MODE_SGMII &&
412 phydev->interface <= PHY_INTERFACE_MODE_QSGMII;
415 bool phy_interface_is_ncsi(void);
417 /* PHY UIDs for various PHYs that are referenced in external code */
418 #define PHY_UID_CS4340 0x13e51002
419 #define PHY_UID_CS4223 0x03e57003
420 #define PHY_UID_TN2020 0x00a19410
421 #define PHY_UID_IN112525_S03 0x02107440