forked from ~ljy/RK356X_SDK_RELEASE
blame | history | patch | commit | commitdiff
hc
2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b 
 kernel/include/linux/mdio.h
....@@ -1,10 +1,7 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * linux/mdio.h: definitions for MDIO (clause 45) transceivers
34  * Copyright 2006-2009 Solarflare Communications Inc.
4
- *
5
- * This program is free software; you can redistribute it and/or modify it
6
- * under the terms of the GNU General Public License version 2 as published
7
- * by the Free Software Foundation, incorporated herein by reference.
85  */
96 #ifndef __LINUX_MDIO_H__
107 #define __LINUX_MDIO_H__
....@@ -12,8 +9,16 @@
129 #include <uapi/linux/mdio.h>
1310 #include <linux/mod_devicetable.h>
1411 
12
+/* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit
13
+ * IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips.
14
+ */
15
+#define MII_ADDR_C45		(1<<30)
16
+#define MII_DEVADDR_C45_SHIFT	16
17
+#define MII_REGADDR_C45_MASK	GENMASK(15, 0)
18
+
1519 struct gpio_desc;
1620 struct mii_bus;
21
+struct reset_control;
1722 
1823 /* Multiple levels of nesting are possible. However typically this is
1924  * limited to nested DSA like layer, a MUX layer, and the normal
....@@ -39,7 +44,8 @@
3944 	/* Bus address of the MDIO device (0-31) */
4045 	int addr;
4146 	int flags;
42
-	struct gpio_desc *reset;
47
+	struct gpio_desc *reset_gpio;
48
+	struct reset_control *reset_ctrl;
4349 	unsigned int reset_assert_delay;
4450 	unsigned int reset_deassert_delay;
4551 };
....@@ -72,6 +78,17 @@
7278 };
7379 #define to_mdio_driver(d)						\
7480 	container_of(to_mdio_common_driver(d), struct mdio_driver, mdiodrv)
81
+
82
+/* device driver data */
83
+static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data)
84
+{
85
+	dev_set_drvdata(&mdio->dev, data);
86
+}
87
+
88
+static inline void *mdiodev_get_drvdata(struct mdio_device *mdio)
89
+{
90
+	return dev_get_drvdata(&mdio->dev);
91
+}
7592 
7693 void mdio_device_free(struct mdio_device *mdiodev);
7794 struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
....@@ -264,13 +281,91 @@
264281 	return reg;
265282 }
266283 
284
+/**
285
+ * linkmode_adv_to_mii_10gbt_adv_t
286
+ * @advertising: the linkmode advertisement settings
287
+ *
288
+ * A small helper function that translates linkmode advertisement
289
+ * settings to phy autonegotiation advertisements for the C45
290
+ * 10GBASE-T AN CONTROL (7.32) register.
291
+ */
292
+static inline u32 linkmode_adv_to_mii_10gbt_adv_t(unsigned long *advertising)
293
+{
294
+	u32 result = 0;
295
+
296
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
297
+			      advertising))
298
+		result |= MDIO_AN_10GBT_CTRL_ADV2_5G;
299
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
300
+			      advertising))
301
+		result |= MDIO_AN_10GBT_CTRL_ADV5G;
302
+	if (linkmode_test_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
303
+			      advertising))
304
+		result |= MDIO_AN_10GBT_CTRL_ADV10G;
305
+
306
+	return result;
307
+}
308
+
309
+/**
310
+ * mii_10gbt_stat_mod_linkmode_lpa_t
311
+ * @advertising: target the linkmode advertisement settings
312
+ * @lpa: value of the C45 10GBASE-T AN STATUS register
313
+ *
314
+ * A small helper function that translates C45 10GBASE-T AN STATUS register bits
315
+ * to linkmode advertisement settings. Other bits in advertising aren't changed.
316
+ */
317
+static inline void mii_10gbt_stat_mod_linkmode_lpa_t(unsigned long *advertising,
318
+						     u32 lpa)
319
+{
320
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
321
+			 advertising, lpa & MDIO_AN_10GBT_STAT_LP2_5G);
322
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
323
+			 advertising, lpa & MDIO_AN_10GBT_STAT_LP5G);
324
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
325
+			 advertising, lpa & MDIO_AN_10GBT_STAT_LP10G);
326
+}
327
+
267328 int __mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
268329 int __mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
330
+int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
331
+			     u16 mask, u16 set);
269332 
270333 int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
271334 int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
272335 int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
273336 int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
337
+int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
338
+		   u16 set);
339
+
340
+static inline u32 mdiobus_c45_addr(int devad, u16 regnum)
341
+{
342
+	return MII_ADDR_C45 | devad << MII_DEVADDR_C45_SHIFT | regnum;
343
+}
344
+
345
+static inline int __mdiobus_c45_read(struct mii_bus *bus, int prtad, int devad,
346
+				     u16 regnum)
347
+{
348
+	return __mdiobus_read(bus, prtad, mdiobus_c45_addr(devad, regnum));
349
+}
350
+
351
+static inline int __mdiobus_c45_write(struct mii_bus *bus, int prtad, int devad,
352
+				      u16 regnum, u16 val)
353
+{
354
+	return __mdiobus_write(bus, prtad, mdiobus_c45_addr(devad, regnum),
355
+			       val);
356
+}
357
+
358
+static inline int mdiobus_c45_read(struct mii_bus *bus, int prtad, int devad,
359
+				   u16 regnum)
360
+{
361
+	return mdiobus_read(bus, prtad, mdiobus_c45_addr(devad, regnum));
362
+}
363
+
364
+static inline int mdiobus_c45_write(struct mii_bus *bus, int prtad, int devad,
365
+				    u16 regnum, u16 val)
366
+{
367
+	return mdiobus_write(bus, prtad, mdiobus_c45_addr(devad, regnum), val);
368
+}
274369 
275370 int mdiobus_register_device(struct mdio_device *mdiodev);
276371 int mdiobus_unregister_device(struct mdio_device *mdiodev);
....@@ -279,6 +374,7 @@
279374 
280375 /**
281376  * mdio_module_driver() - Helper macro for registering mdio drivers
377
+ * @_mdio_driver: driver to register
282378  *
283379  * Helper macro for MDIO drivers which do not do anything special in module
284380  * init/exit. Each module may only use this macro once, and calling it