1 /*
2  * Marvell 88E6xxx Switch Global 2 Registers support
3  *
4  * Copyright (c) 2008 Marvell Semiconductor
5  *
6  * Copyright (c) 2016-2017 Savoir-faire Linux Inc.
7  *	Vivien Didelot <vivien.didelot@savoirfairelinux.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  */
14 
15 #ifndef _MV88E6XXX_GLOBAL2_H
16 #define _MV88E6XXX_GLOBAL2_H
17 
18 #include "chip.h"
19 
20 /* Offset 0x00: Interrupt Source Register */
21 #define MV88E6XXX_G2_INT_SRC			0x00
22 #define MV88E6XXX_G2_INT_SRC_WDOG		0x8000
23 #define MV88E6XXX_G2_INT_SRC_JAM_LIMIT		0x4000
24 #define MV88E6XXX_G2_INT_SRC_DUPLEX_MISMATCH	0x2000
25 #define MV88E6XXX_G2_INT_SRC_WAKE_EVENT		0x1000
26 #define MV88E6352_G2_INT_SRC_SERDES		0x0800
27 #define MV88E6352_G2_INT_SRC_PHY		0x001f
28 #define MV88E6390_G2_INT_SRC_PHY		0x07fe
29 
30 #define MV88E6XXX_G2_INT_SOURCE_WATCHDOG	15
31 
32 /* Offset 0x01: Interrupt Mask Register */
33 #define MV88E6XXX_G2_INT_MASK			0x01
34 #define MV88E6XXX_G2_INT_MASK_WDOG		0x8000
35 #define MV88E6XXX_G2_INT_MASK_JAM_LIMIT		0x4000
36 #define MV88E6XXX_G2_INT_MASK_DUPLEX_MISMATCH	0x2000
37 #define MV88E6XXX_G2_INT_MASK_WAKE_EVENT	0x1000
38 #define MV88E6352_G2_INT_MASK_SERDES		0x0800
39 #define MV88E6352_G2_INT_MASK_PHY		0x001f
40 #define MV88E6390_G2_INT_MASK_PHY		0x07fe
41 
42 /* Offset 0x02: MGMT Enable Register 2x */
43 #define MV88E6XXX_G2_MGMT_EN_2X		0x02
44 
45 /* Offset 0x03: MGMT Enable Register 0x */
46 #define MV88E6XXX_G2_MGMT_EN_0X		0x03
47 
48 /* Offset 0x04: Flow Control Delay Register */
49 #define MV88E6XXX_G2_FLOW_CTL	0x04
50 
51 /* Offset 0x05: Switch Management Register */
52 #define MV88E6XXX_G2_SWITCH_MGMT			0x05
53 #define MV88E6XXX_G2_SWITCH_MGMT_USE_DOUBLE_TAG_DATA	0x8000
54 #define MV88E6XXX_G2_SWITCH_MGMT_PREVENT_LOOPS		0x4000
55 #define MV88E6XXX_G2_SWITCH_MGMT_FLOW_CTL_MSG		0x2000
56 #define MV88E6XXX_G2_SWITCH_MGMT_FORCE_FLOW_CTL_PRI	0x0080
57 #define MV88E6XXX_G2_SWITCH_MGMT_RSVD2CPU		0x0008
58 
59 /* Offset 0x06: Device Mapping Table Register */
60 #define MV88E6XXX_G2_DEVICE_MAPPING		0x06
61 #define MV88E6XXX_G2_DEVICE_MAPPING_UPDATE	0x8000
62 #define MV88E6XXX_G2_DEVICE_MAPPING_DEV_MASK	0x1f00
63 #define MV88E6XXX_G2_DEVICE_MAPPING_PORT_MASK	0x000f
64 
65 /* Offset 0x07: Trunk Mask Table Register */
66 #define MV88E6XXX_G2_TRUNK_MASK			0x07
67 #define MV88E6XXX_G2_TRUNK_MASK_UPDATE		0x8000
68 #define MV88E6XXX_G2_TRUNK_MASK_NUM_MASK	0x7000
69 #define MV88E6XXX_G2_TRUNK_MASK_HASH		0x0800
70 
71 /* Offset 0x08: Trunk Mapping Table Register */
72 #define MV88E6XXX_G2_TRUNK_MAPPING		0x08
73 #define MV88E6XXX_G2_TRUNK_MAPPING_UPDATE	0x8000
74 #define MV88E6XXX_G2_TRUNK_MAPPING_ID_MASK	0x7800
75 
76 /* Offset 0x09: Ingress Rate Command Register */
77 #define MV88E6XXX_G2_IRL_CMD			0x09
78 #define MV88E6XXX_G2_IRL_CMD_BUSY		0x8000
79 #define MV88E6352_G2_IRL_CMD_OP_MASK		0x7000
80 #define MV88E6352_G2_IRL_CMD_OP_NOOP		0x0000
81 #define MV88E6352_G2_IRL_CMD_OP_INIT_ALL	0x1000
82 #define MV88E6352_G2_IRL_CMD_OP_INIT_RES	0x2000
83 #define MV88E6352_G2_IRL_CMD_OP_WRITE_REG	0x3000
84 #define MV88E6352_G2_IRL_CMD_OP_READ_REG	0x4000
85 #define MV88E6390_G2_IRL_CMD_OP_MASK		0x6000
86 #define MV88E6390_G2_IRL_CMD_OP_READ_REG	0x0000
87 #define MV88E6390_G2_IRL_CMD_OP_INIT_ALL	0x2000
88 #define MV88E6390_G2_IRL_CMD_OP_INIT_RES	0x4000
89 #define MV88E6390_G2_IRL_CMD_OP_WRITE_REG	0x6000
90 #define MV88E6352_G2_IRL_CMD_PORT_MASK		0x0f00
91 #define MV88E6390_G2_IRL_CMD_PORT_MASK		0x1f00
92 #define MV88E6XXX_G2_IRL_CMD_RES_MASK		0x00e0
93 #define MV88E6XXX_G2_IRL_CMD_REG_MASK		0x000f
94 
95 /* Offset 0x0A: Ingress Rate Data Register */
96 #define MV88E6XXX_G2_IRL_DATA		0x0a
97 #define MV88E6XXX_G2_IRL_DATA_MASK	0xffff
98 
99 /* Offset 0x0B: Cross-chip Port VLAN Register */
100 #define MV88E6XXX_G2_PVT_ADDR			0x0b
101 #define MV88E6XXX_G2_PVT_ADDR_BUSY		0x8000
102 #define MV88E6XXX_G2_PVT_ADDR_OP_MASK		0x7000
103 #define MV88E6XXX_G2_PVT_ADDR_OP_INIT_ONES	0x1000
104 #define MV88E6XXX_G2_PVT_ADDR_OP_WRITE_PVLAN	0x3000
105 #define MV88E6XXX_G2_PVT_ADDR_OP_READ		0x4000
106 #define MV88E6XXX_G2_PVT_ADDR_PTR_MASK		0x01ff
107 
108 /* Offset 0x0C: Cross-chip Port VLAN Data Register */
109 #define MV88E6XXX_G2_PVT_DATA		0x0c
110 #define MV88E6XXX_G2_PVT_DATA_MASK	0x7f
111 
112 /* Offset 0x0D: Switch MAC/WoL/WoF Register */
113 #define MV88E6XXX_G2_SWITCH_MAC			0x0d
114 #define MV88E6XXX_G2_SWITCH_MAC_UPDATE		0x8000
115 #define MV88E6XXX_G2_SWITCH_MAC_PTR_MASK	0x1f00
116 #define MV88E6XXX_G2_SWITCH_MAC_DATA_MASK	0x00ff
117 
118 /* Offset 0x0E: ATU Stats Register */
119 #define MV88E6XXX_G2_ATU_STATS		0x0e
120 
121 /* Offset 0x0F: Priority Override Table */
122 #define MV88E6XXX_G2_PRIO_OVERRIDE		0x0f
123 #define MV88E6XXX_G2_PRIO_OVERRIDE_UPDATE	0x8000
124 #define MV88E6XXX_G2_PRIO_OVERRIDE_FPRISET	0x1000
125 #define MV88E6XXX_G2_PRIO_OVERRIDE_PTR_MASK	0x0f00
126 #define MV88E6352_G2_PRIO_OVERRIDE_QPRIAVBEN	0x0080
127 #define MV88E6352_G2_PRIO_OVERRIDE_DATAAVB_MASK	0x0030
128 #define MV88E6XXX_G2_PRIO_OVERRIDE_QFPRIEN	0x0008
129 #define MV88E6XXX_G2_PRIO_OVERRIDE_DATA_MASK	0x0007
130 
131 /* Offset 0x14: EEPROM Command */
132 #define MV88E6XXX_G2_EEPROM_CMD			0x14
133 #define MV88E6XXX_G2_EEPROM_CMD_BUSY		0x8000
134 #define MV88E6XXX_G2_EEPROM_CMD_OP_MASK		0x7000
135 #define MV88E6XXX_G2_EEPROM_CMD_OP_WRITE	0x3000
136 #define MV88E6XXX_G2_EEPROM_CMD_OP_READ		0x4000
137 #define MV88E6XXX_G2_EEPROM_CMD_OP_LOAD		0x6000
138 #define MV88E6XXX_G2_EEPROM_CMD_RUNNING		0x0800
139 #define MV88E6XXX_G2_EEPROM_CMD_WRITE_EN	0x0400
140 #define MV88E6352_G2_EEPROM_CMD_ADDR_MASK	0x00ff
141 #define MV88E6390_G2_EEPROM_CMD_DATA_MASK	0x00ff
142 
143 /* Offset 0x15: EEPROM Data */
144 #define MV88E6352_G2_EEPROM_DATA	0x15
145 #define MV88E6352_G2_EEPROM_DATA_MASK	0xffff
146 
147 /* Offset 0x15: EEPROM Addr */
148 #define MV88E6390_G2_EEPROM_ADDR	0x15
149 #define MV88E6390_G2_EEPROM_ADDR_MASK	0xffff
150 
151 /* Offset 0x16: AVB Command Register */
152 #define MV88E6352_G2_AVB_CMD		0x16
153 
154 /* Offset 0x17: AVB Data Register */
155 #define MV88E6352_G2_AVB_DATA		0x17
156 
157 /* Offset 0x18: SMI PHY Command Register */
158 #define MV88E6XXX_G2_SMI_PHY_CMD			0x18
159 #define MV88E6XXX_G2_SMI_PHY_CMD_BUSY			0x8000
160 #define MV88E6390_G2_SMI_PHY_CMD_FUNC_MASK		0x6000
161 #define MV88E6390_G2_SMI_PHY_CMD_FUNC_INTERNAL		0x0000
162 #define MV88E6390_G2_SMI_PHY_CMD_FUNC_EXTERNAL		0x2000
163 #define MV88E6390_G2_SMI_PHY_CMD_FUNC_SETUP		0x4000
164 #define MV88E6XXX_G2_SMI_PHY_CMD_MODE_MASK		0x1000
165 #define MV88E6XXX_G2_SMI_PHY_CMD_MODE_45		0x0000
166 #define MV88E6XXX_G2_SMI_PHY_CMD_MODE_22		0x1000
167 #define MV88E6XXX_G2_SMI_PHY_CMD_OP_MASK		0x0c00
168 #define MV88E6XXX_G2_SMI_PHY_CMD_OP_22_WRITE_DATA	0x0400
169 #define MV88E6XXX_G2_SMI_PHY_CMD_OP_22_READ_DATA	0x0800
170 #define MV88E6XXX_G2_SMI_PHY_CMD_OP_45_WRITE_ADDR	0x0000
171 #define MV88E6XXX_G2_SMI_PHY_CMD_OP_45_WRITE_DATA	0x0400
172 #define MV88E6XXX_G2_SMI_PHY_CMD_OP_45_READ_DATA_INC	0x0800
173 #define MV88E6XXX_G2_SMI_PHY_CMD_OP_45_READ_DATA	0x0c00
174 #define MV88E6XXX_G2_SMI_PHY_CMD_DEV_ADDR_MASK		0x03e0
175 #define MV88E6XXX_G2_SMI_PHY_CMD_REG_ADDR_MASK		0x001f
176 #define MV88E6XXX_G2_SMI_PHY_CMD_SETUP_PTR_MASK		0x03ff
177 
178 /* Offset 0x19: SMI PHY Data Register */
179 #define MV88E6XXX_G2_SMI_PHY_DATA	0x19
180 
181 /* Offset 0x1A: Scratch and Misc. Register */
182 #define MV88E6XXX_G2_SCRATCH_MISC_MISC		0x1a
183 #define MV88E6XXX_G2_SCRATCH_MISC_UPDATE	0x8000
184 #define MV88E6XXX_G2_SCRATCH_MISC_PTR_MASK	0x7f00
185 #define MV88E6XXX_G2_SCRATCH_MISC_DATA_MASK	0x00ff
186 
187 /* Offset 0x1B: Watch Dog Control Register */
188 #define MV88E6352_G2_WDOG_CTL			0x1b
189 #define MV88E6352_G2_WDOG_CTL_EGRESS_EVENT	0x0080
190 #define MV88E6352_G2_WDOG_CTL_RMU_TIMEOUT	0x0040
191 #define MV88E6352_G2_WDOG_CTL_QC_ENABLE		0x0020
192 #define MV88E6352_G2_WDOG_CTL_EGRESS_HISTORY	0x0010
193 #define MV88E6352_G2_WDOG_CTL_EGRESS_ENABLE	0x0008
194 #define MV88E6352_G2_WDOG_CTL_FORCE_IRQ		0x0004
195 #define MV88E6352_G2_WDOG_CTL_HISTORY		0x0002
196 #define MV88E6352_G2_WDOG_CTL_SWRESET		0x0001
197 
198 /* Offset 0x1B: Watch Dog Control Register */
199 #define MV88E6390_G2_WDOG_CTL				0x1b
200 #define MV88E6390_G2_WDOG_CTL_UPDATE			0x8000
201 #define MV88E6390_G2_WDOG_CTL_PTR_MASK			0x7f00
202 #define MV88E6390_G2_WDOG_CTL_PTR_INT_SOURCE		0x0000
203 #define MV88E6390_G2_WDOG_CTL_PTR_INT_STS		0x1000
204 #define MV88E6390_G2_WDOG_CTL_PTR_INT_ENABLE		0x1100
205 #define MV88E6390_G2_WDOG_CTL_PTR_EVENT			0x1200
206 #define MV88E6390_G2_WDOG_CTL_PTR_HISTORY		0x1300
207 #define MV88E6390_G2_WDOG_CTL_DATA_MASK			0x00ff
208 #define MV88E6390_G2_WDOG_CTL_CUT_THROUGH		0x0008
209 #define MV88E6390_G2_WDOG_CTL_QUEUE_CONTROLLER		0x0004
210 #define MV88E6390_G2_WDOG_CTL_EGRESS			0x0002
211 #define MV88E6390_G2_WDOG_CTL_FORCE_IRQ			0x0001
212 
213 /* Offset 0x1C: QoS Weights Register */
214 #define MV88E6XXX_G2_QOS_WEIGHTS		0x1c
215 #define MV88E6XXX_G2_QOS_WEIGHTS_UPDATE		0x8000
216 #define MV88E6352_G2_QOS_WEIGHTS_PTR_MASK	0x3f00
217 #define MV88E6390_G2_QOS_WEIGHTS_PTR_MASK	0x7f00
218 #define MV88E6XXX_G2_QOS_WEIGHTS_DATA_MASK	0x00ff
219 
220 /* Offset 0x1D: Misc Register */
221 #define MV88E6XXX_G2_MISC		0x1d
222 #define MV88E6XXX_G2_MISC_5_BIT_PORT	0x4000
223 #define MV88E6352_G2_NOEGR_POLICY	0x2000
224 #define MV88E6390_G2_LAG_ID_4		0x2000
225 
226 #ifdef CONFIG_NET_DSA_MV88E6XXX_GLOBAL2
227 
228 static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip)
229 {
230 	return 0;
231 }
232 
233 int mv88e6352_g2_irl_init_all(struct mv88e6xxx_chip *chip, int port);
234 int mv88e6390_g2_irl_init_all(struct mv88e6xxx_chip *chip, int port);
235 
236 int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip,
237 			      struct mii_bus *bus,
238 			      int addr, int reg, u16 *val);
239 int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip,
240 			       struct mii_bus *bus,
241 			       int addr, int reg, u16 val);
242 int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip, u8 *addr);
243 
244 int mv88e6xxx_g2_get_eeprom8(struct mv88e6xxx_chip *chip,
245 			     struct ethtool_eeprom *eeprom, u8 *data);
246 int mv88e6xxx_g2_set_eeprom8(struct mv88e6xxx_chip *chip,
247 			     struct ethtool_eeprom *eeprom, u8 *data);
248 
249 int mv88e6xxx_g2_get_eeprom16(struct mv88e6xxx_chip *chip,
250 			      struct ethtool_eeprom *eeprom, u8 *data);
251 int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip,
252 			      struct ethtool_eeprom *eeprom, u8 *data);
253 
254 int mv88e6xxx_g2_pvt_write(struct mv88e6xxx_chip *chip, int src_dev,
255 			   int src_port, u16 data);
256 int mv88e6xxx_g2_misc_4_bit_port(struct mv88e6xxx_chip *chip);
257 
258 int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip);
259 int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip);
260 void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip);
261 
262 int mv88e6185_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);
263 int mv88e6352_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip);
264 
265 int mv88e6xxx_g2_pot_clear(struct mv88e6xxx_chip *chip);
266 
267 extern const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops;
268 extern const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops;
269 
270 #else /* !CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */
271 
272 static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip)
273 {
274 	if (chip->info->global2_addr) {
275 		dev_err(chip->dev, "this chip requires CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 enabled\n");
276 		return -EOPNOTSUPP;
277 	}
278 
279 	return 0;
280 }
281 
282 static inline int mv88e6352_g2_irl_init_all(struct mv88e6xxx_chip *chip,
283 					    int port)
284 {
285 	return -EOPNOTSUPP;
286 }
287 
288 static inline int mv88e6390_g2_irl_init_all(struct mv88e6xxx_chip *chip,
289 					    int port)
290 {
291 	return -EOPNOTSUPP;
292 }
293 
294 static inline int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip,
295 					    struct mii_bus *bus,
296 					    int addr, int reg, u16 *val)
297 {
298 	return -EOPNOTSUPP;
299 }
300 
301 static inline int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip,
302 					     struct mii_bus *bus,
303 					     int addr, int reg, u16 val)
304 {
305 	return -EOPNOTSUPP;
306 }
307 
308 static inline int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip,
309 					      u8 *addr)
310 {
311 	return -EOPNOTSUPP;
312 }
313 
314 static inline int mv88e6xxx_g2_get_eeprom8(struct mv88e6xxx_chip *chip,
315 					   struct ethtool_eeprom *eeprom,
316 					   u8 *data)
317 {
318 	return -EOPNOTSUPP;
319 }
320 
321 static inline int mv88e6xxx_g2_set_eeprom8(struct mv88e6xxx_chip *chip,
322 					   struct ethtool_eeprom *eeprom,
323 					   u8 *data)
324 {
325 	return -EOPNOTSUPP;
326 }
327 
328 static inline int mv88e6xxx_g2_get_eeprom16(struct mv88e6xxx_chip *chip,
329 					    struct ethtool_eeprom *eeprom,
330 					    u8 *data)
331 {
332 	return -EOPNOTSUPP;
333 }
334 
335 static inline int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip,
336 					    struct ethtool_eeprom *eeprom,
337 					    u8 *data)
338 {
339 	return -EOPNOTSUPP;
340 }
341 
342 static inline int mv88e6xxx_g2_pvt_write(struct mv88e6xxx_chip *chip,
343 					 int src_dev, int src_port, u16 data)
344 {
345 	return -EOPNOTSUPP;
346 }
347 
348 static inline int mv88e6xxx_g2_misc_4_bit_port(struct mv88e6xxx_chip *chip)
349 {
350 	return -EOPNOTSUPP;
351 }
352 
353 static inline int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip)
354 {
355 	return -EOPNOTSUPP;
356 }
357 
358 static inline int mv88e6xxx_g2_irq_setup(struct mv88e6xxx_chip *chip)
359 {
360 	return -EOPNOTSUPP;
361 }
362 
363 static inline void mv88e6xxx_g2_irq_free(struct mv88e6xxx_chip *chip)
364 {
365 }
366 
367 static inline int mv88e6185_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
368 {
369 	return -EOPNOTSUPP;
370 }
371 
372 static inline int mv88e6352_g2_mgmt_rsvd2cpu(struct mv88e6xxx_chip *chip)
373 {
374 	return -EOPNOTSUPP;
375 }
376 
377 static inline int mv88e6xxx_g2_pot_clear(struct mv88e6xxx_chip *chip)
378 {
379 	return -EOPNOTSUPP;
380 }
381 
382 static const struct mv88e6xxx_irq_ops mv88e6097_watchdog_ops = {};
383 static const struct mv88e6xxx_irq_ops mv88e6390_watchdog_ops = {};
384 
385 #endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */
386 
387 #endif /* _MV88E6XXX_GLOBAL2_H */
388