xref: /openbmc/linux/drivers/net/dsa/mv88e6xxx/serdes.h (revision 193c5b26)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Marvell 88E6xxx SERDES manipulation, via SMI bus
4  *
5  * Copyright (c) 2008 Marvell Semiconductor
6  *
7  * Copyright (c) 2016 Andrew Lunn <andrew@lunn.ch>
8  */
9 
10 #ifndef _MV88E6XXX_SERDES_H
11 #define _MV88E6XXX_SERDES_H
12 
13 #include "chip.h"
14 
15 #define MV88E6352_ADDR_SERDES		0x0f
16 #define MV88E6352_SERDES_PAGE_FIBER	0x01
17 #define MV88E6352_SERDES_IRQ		0x0b
18 #define MV88E6352_SERDES_INT_ENABLE	0x12
19 #define MV88E6352_SERDES_INT_SPEED_CHANGE	BIT(14)
20 #define MV88E6352_SERDES_INT_DUPLEX_CHANGE	BIT(13)
21 #define MV88E6352_SERDES_INT_PAGE_RX		BIT(12)
22 #define MV88E6352_SERDES_INT_AN_COMPLETE	BIT(11)
23 #define MV88E6352_SERDES_INT_LINK_CHANGE	BIT(10)
24 #define MV88E6352_SERDES_INT_SYMBOL_ERROR	BIT(9)
25 #define MV88E6352_SERDES_INT_FALSE_CARRIER	BIT(8)
26 #define MV88E6352_SERDES_INT_FIFO_OVER_UNDER	BIT(7)
27 #define MV88E6352_SERDES_INT_FIBRE_ENERGY	BIT(4)
28 #define MV88E6352_SERDES_INT_STATUS	0x13
29 
30 
31 #define MV88E6341_PORT5_LANE		0x15
32 
33 #define MV88E6390_PORT9_LANE0		0x09
34 #define MV88E6390_PORT9_LANE1		0x12
35 #define MV88E6390_PORT9_LANE2		0x13
36 #define MV88E6390_PORT9_LANE3		0x14
37 #define MV88E6390_PORT10_LANE0		0x0a
38 #define MV88E6390_PORT10_LANE1		0x15
39 #define MV88E6390_PORT10_LANE2		0x16
40 #define MV88E6390_PORT10_LANE3		0x17
41 
42 /* 10GBASE-R and 10GBASE-X4/X2 */
43 #define MV88E6390_10G_CTRL1		(0x1000 + MDIO_CTRL1)
44 #define MV88E6390_10G_STAT1		(0x1000 + MDIO_STAT1)
45 
46 /* 1000BASE-X and SGMII */
47 #define MV88E6390_SGMII_BMCR		(0x2000 + MII_BMCR)
48 #define MV88E6390_SGMII_BMSR		(0x2000 + MII_BMSR)
49 #define MV88E6390_SGMII_ADVERTISE	(0x2000 + MII_ADVERTISE)
50 #define MV88E6390_SGMII_LPA		(0x2000 + MII_LPA)
51 #define MV88E6390_SGMII_INT_ENABLE	0xa001
52 #define MV88E6390_SGMII_INT_SPEED_CHANGE	BIT(14)
53 #define MV88E6390_SGMII_INT_DUPLEX_CHANGE	BIT(13)
54 #define MV88E6390_SGMII_INT_PAGE_RX		BIT(12)
55 #define MV88E6390_SGMII_INT_AN_COMPLETE		BIT(11)
56 #define MV88E6390_SGMII_INT_LINK_DOWN		BIT(10)
57 #define MV88E6390_SGMII_INT_LINK_UP		BIT(9)
58 #define MV88E6390_SGMII_INT_SYMBOL_ERROR	BIT(8)
59 #define MV88E6390_SGMII_INT_FALSE_CARRIER	BIT(7)
60 #define MV88E6390_SGMII_INT_STATUS	0xa002
61 #define MV88E6390_SGMII_PHY_STATUS	0xa003
62 #define MV88E6390_SGMII_PHY_STATUS_SPEED_MASK	GENMASK(15, 14)
63 #define MV88E6390_SGMII_PHY_STATUS_SPEED_1000	0x8000
64 #define MV88E6390_SGMII_PHY_STATUS_SPEED_100	0x4000
65 #define MV88E6390_SGMII_PHY_STATUS_SPEED_10	0x0000
66 #define MV88E6390_SGMII_PHY_STATUS_DUPLEX_FULL	BIT(13)
67 #define MV88E6390_SGMII_PHY_STATUS_SPD_DPL_VALID BIT(11)
68 #define MV88E6390_SGMII_PHY_STATUS_LINK		BIT(10)
69 #define MV88E6390_SGMII_PHY_STATUS_TX_PAUSE	BIT(3)
70 #define MV88E6390_SGMII_PHY_STATUS_RX_PAUSE	BIT(2)
71 
72 /* Packet generator pad packet checker */
73 #define MV88E6390_PG_CONTROL		0xf010
74 #define MV88E6390_PG_CONTROL_ENABLE_PC		BIT(0)
75 
76 int mv88e6185_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
77 int mv88e6341_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
78 int mv88e6352_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
79 int mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
80 int mv88e6390x_serdes_get_lane(struct mv88e6xxx_chip *chip, int port);
81 int mv88e6352_serdes_pcs_config(struct mv88e6xxx_chip *chip, int port,
82 				int lane, unsigned int mode,
83 				phy_interface_t interface,
84 				const unsigned long *advertise);
85 int mv88e6390_serdes_pcs_config(struct mv88e6xxx_chip *chip, int port,
86 				int lane, unsigned int mode,
87 				phy_interface_t interface,
88 				const unsigned long *advertise);
89 int mv88e6185_serdes_pcs_get_state(struct mv88e6xxx_chip *chip, int port,
90 				   int lane, struct phylink_link_state *state);
91 int mv88e6352_serdes_pcs_get_state(struct mv88e6xxx_chip *chip, int port,
92 				   int lane, struct phylink_link_state *state);
93 int mv88e6390_serdes_pcs_get_state(struct mv88e6xxx_chip *chip, int port,
94 				   int lane, struct phylink_link_state *state);
95 int mv88e6352_serdes_pcs_an_restart(struct mv88e6xxx_chip *chip, int port,
96 				    int lane);
97 int mv88e6390_serdes_pcs_an_restart(struct mv88e6xxx_chip *chip, int port,
98 				    int lane);
99 int mv88e6352_serdes_pcs_link_up(struct mv88e6xxx_chip *chip, int port,
100 				 int lane, int speed, int duplex);
101 int mv88e6390_serdes_pcs_link_up(struct mv88e6xxx_chip *chip, int port,
102 				 int lane, int speed, int duplex);
103 unsigned int mv88e6352_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
104 					  int port);
105 unsigned int mv88e6390_serdes_irq_mapping(struct mv88e6xxx_chip *chip,
106 					  int port);
107 int mv88e6185_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane,
108 			   bool up);
109 int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane,
110 			   bool on);
111 int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane,
112 			   bool on);
113 int mv88e6097_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, int lane,
114 				bool enable);
115 int mv88e6352_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, int lane,
116 				bool enable);
117 int mv88e6390_serdes_irq_enable(struct mv88e6xxx_chip *chip, int port, int lane,
118 				bool enable);
119 irqreturn_t mv88e6097_serdes_irq_status(struct mv88e6xxx_chip *chip, int port,
120 					int lane);
121 irqreturn_t mv88e6352_serdes_irq_status(struct mv88e6xxx_chip *chip, int port,
122 					int lane);
123 irqreturn_t mv88e6390_serdes_irq_status(struct mv88e6xxx_chip *chip, int port,
124 					int lane);
125 int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
126 int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
127 				 int port, uint8_t *data);
128 int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
129 			       uint64_t *data);
130 int mv88e6390_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
131 int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip,
132 				 int port, uint8_t *data);
133 int mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
134 			       uint64_t *data);
135 
136 int mv88e6352_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port);
137 void mv88e6352_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p);
138 int mv88e6390_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port);
139 void mv88e6390_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p);
140 
141 /* Return the (first) SERDES lane address a port is using, -errno otherwise. */
142 static inline int mv88e6xxx_serdes_get_lane(struct mv88e6xxx_chip *chip,
143 					    int port)
144 {
145 	if (!chip->info->ops->serdes_get_lane)
146 		return -EOPNOTSUPP;
147 
148 	return chip->info->ops->serdes_get_lane(chip, port);
149 }
150 
151 static inline int mv88e6xxx_serdes_power_up(struct mv88e6xxx_chip *chip,
152 					    int port, int lane)
153 {
154 	if (!chip->info->ops->serdes_power)
155 		return -EOPNOTSUPP;
156 
157 	return chip->info->ops->serdes_power(chip, port, lane, true);
158 }
159 
160 static inline int mv88e6xxx_serdes_power_down(struct mv88e6xxx_chip *chip,
161 					      int port, int lane)
162 {
163 	if (!chip->info->ops->serdes_power)
164 		return -EOPNOTSUPP;
165 
166 	return chip->info->ops->serdes_power(chip, port, lane, false);
167 }
168 
169 static inline unsigned int
170 mv88e6xxx_serdes_irq_mapping(struct mv88e6xxx_chip *chip, int port)
171 {
172 	if (!chip->info->ops->serdes_irq_mapping)
173 		return 0;
174 
175 	return chip->info->ops->serdes_irq_mapping(chip, port);
176 }
177 
178 static inline int mv88e6xxx_serdes_irq_enable(struct mv88e6xxx_chip *chip,
179 					      int port, int lane)
180 {
181 	if (!chip->info->ops->serdes_irq_enable)
182 		return -EOPNOTSUPP;
183 
184 	return chip->info->ops->serdes_irq_enable(chip, port, lane, true);
185 }
186 
187 static inline int mv88e6xxx_serdes_irq_disable(struct mv88e6xxx_chip *chip,
188 					       int port, int lane)
189 {
190 	if (!chip->info->ops->serdes_irq_enable)
191 		return -EOPNOTSUPP;
192 
193 	return chip->info->ops->serdes_irq_enable(chip, port, lane, false);
194 }
195 
196 static inline irqreturn_t
197 mv88e6xxx_serdes_irq_status(struct mv88e6xxx_chip *chip, int port, int lane)
198 {
199 	if (!chip->info->ops->serdes_irq_status)
200 		return IRQ_NONE;
201 
202 	return chip->info->ops->serdes_irq_status(chip, port, lane);
203 }
204 
205 #endif
206