1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Microchip switch driver main logic
4  *
5  * Copyright (C) 2017-2019 Microchip Technology Inc.
6  */
7 
8 #include <linux/delay.h>
9 #include <linux/dsa/ksz_common.h>
10 #include <linux/export.h>
11 #include <linux/gpio/consumer.h>
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/platform_data/microchip-ksz.h>
15 #include <linux/phy.h>
16 #include <linux/etherdevice.h>
17 #include <linux/if_bridge.h>
18 #include <linux/if_vlan.h>
19 #include <linux/irq.h>
20 #include <linux/irqdomain.h>
21 #include <linux/of_mdio.h>
22 #include <linux/of_device.h>
23 #include <linux/of_net.h>
24 #include <linux/micrel_phy.h>
25 #include <net/dsa.h>
26 #include <net/pkt_cls.h>
27 #include <net/switchdev.h>
28 
29 #include "ksz_common.h"
30 #include "ksz_ptp.h"
31 #include "ksz8.h"
32 #include "ksz9477.h"
33 #include "lan937x.h"
34 
35 #define KSZ_CBS_ENABLE ((MTI_SCHEDULE_STRICT_PRIO << MTI_SCHEDULE_MODE_S) | \
36 			(MTI_SHAPING_SRP << MTI_SHAPING_S))
37 #define KSZ_CBS_DISABLE ((MTI_SCHEDULE_WRR << MTI_SCHEDULE_MODE_S) |\
38 			 (MTI_SHAPING_OFF << MTI_SHAPING_S))
39 #define MIB_COUNTER_NUM 0x20
40 
41 struct ksz_stats_raw {
42 	u64 rx_hi;
43 	u64 rx_undersize;
44 	u64 rx_fragments;
45 	u64 rx_oversize;
46 	u64 rx_jabbers;
47 	u64 rx_symbol_err;
48 	u64 rx_crc_err;
49 	u64 rx_align_err;
50 	u64 rx_mac_ctrl;
51 	u64 rx_pause;
52 	u64 rx_bcast;
53 	u64 rx_mcast;
54 	u64 rx_ucast;
55 	u64 rx_64_or_less;
56 	u64 rx_65_127;
57 	u64 rx_128_255;
58 	u64 rx_256_511;
59 	u64 rx_512_1023;
60 	u64 rx_1024_1522;
61 	u64 rx_1523_2000;
62 	u64 rx_2001;
63 	u64 tx_hi;
64 	u64 tx_late_col;
65 	u64 tx_pause;
66 	u64 tx_bcast;
67 	u64 tx_mcast;
68 	u64 tx_ucast;
69 	u64 tx_deferred;
70 	u64 tx_total_col;
71 	u64 tx_exc_col;
72 	u64 tx_single_col;
73 	u64 tx_mult_col;
74 	u64 rx_total;
75 	u64 tx_total;
76 	u64 rx_discards;
77 	u64 tx_discards;
78 };
79 
80 struct ksz88xx_stats_raw {
81 	u64 rx;
82 	u64 rx_hi;
83 	u64 rx_undersize;
84 	u64 rx_fragments;
85 	u64 rx_oversize;
86 	u64 rx_jabbers;
87 	u64 rx_symbol_err;
88 	u64 rx_crc_err;
89 	u64 rx_align_err;
90 	u64 rx_mac_ctrl;
91 	u64 rx_pause;
92 	u64 rx_bcast;
93 	u64 rx_mcast;
94 	u64 rx_ucast;
95 	u64 rx_64_or_less;
96 	u64 rx_65_127;
97 	u64 rx_128_255;
98 	u64 rx_256_511;
99 	u64 rx_512_1023;
100 	u64 rx_1024_1522;
101 	u64 tx;
102 	u64 tx_hi;
103 	u64 tx_late_col;
104 	u64 tx_pause;
105 	u64 tx_bcast;
106 	u64 tx_mcast;
107 	u64 tx_ucast;
108 	u64 tx_deferred;
109 	u64 tx_total_col;
110 	u64 tx_exc_col;
111 	u64 tx_single_col;
112 	u64 tx_mult_col;
113 	u64 rx_discards;
114 	u64 tx_discards;
115 };
116 
117 static const struct ksz_mib_names ksz88xx_mib_names[] = {
118 	{ 0x00, "rx" },
119 	{ 0x01, "rx_hi" },
120 	{ 0x02, "rx_undersize" },
121 	{ 0x03, "rx_fragments" },
122 	{ 0x04, "rx_oversize" },
123 	{ 0x05, "rx_jabbers" },
124 	{ 0x06, "rx_symbol_err" },
125 	{ 0x07, "rx_crc_err" },
126 	{ 0x08, "rx_align_err" },
127 	{ 0x09, "rx_mac_ctrl" },
128 	{ 0x0a, "rx_pause" },
129 	{ 0x0b, "rx_bcast" },
130 	{ 0x0c, "rx_mcast" },
131 	{ 0x0d, "rx_ucast" },
132 	{ 0x0e, "rx_64_or_less" },
133 	{ 0x0f, "rx_65_127" },
134 	{ 0x10, "rx_128_255" },
135 	{ 0x11, "rx_256_511" },
136 	{ 0x12, "rx_512_1023" },
137 	{ 0x13, "rx_1024_1522" },
138 	{ 0x14, "tx" },
139 	{ 0x15, "tx_hi" },
140 	{ 0x16, "tx_late_col" },
141 	{ 0x17, "tx_pause" },
142 	{ 0x18, "tx_bcast" },
143 	{ 0x19, "tx_mcast" },
144 	{ 0x1a, "tx_ucast" },
145 	{ 0x1b, "tx_deferred" },
146 	{ 0x1c, "tx_total_col" },
147 	{ 0x1d, "tx_exc_col" },
148 	{ 0x1e, "tx_single_col" },
149 	{ 0x1f, "tx_mult_col" },
150 	{ 0x100, "rx_discards" },
151 	{ 0x101, "tx_discards" },
152 };
153 
154 static const struct ksz_mib_names ksz9477_mib_names[] = {
155 	{ 0x00, "rx_hi" },
156 	{ 0x01, "rx_undersize" },
157 	{ 0x02, "rx_fragments" },
158 	{ 0x03, "rx_oversize" },
159 	{ 0x04, "rx_jabbers" },
160 	{ 0x05, "rx_symbol_err" },
161 	{ 0x06, "rx_crc_err" },
162 	{ 0x07, "rx_align_err" },
163 	{ 0x08, "rx_mac_ctrl" },
164 	{ 0x09, "rx_pause" },
165 	{ 0x0A, "rx_bcast" },
166 	{ 0x0B, "rx_mcast" },
167 	{ 0x0C, "rx_ucast" },
168 	{ 0x0D, "rx_64_or_less" },
169 	{ 0x0E, "rx_65_127" },
170 	{ 0x0F, "rx_128_255" },
171 	{ 0x10, "rx_256_511" },
172 	{ 0x11, "rx_512_1023" },
173 	{ 0x12, "rx_1024_1522" },
174 	{ 0x13, "rx_1523_2000" },
175 	{ 0x14, "rx_2001" },
176 	{ 0x15, "tx_hi" },
177 	{ 0x16, "tx_late_col" },
178 	{ 0x17, "tx_pause" },
179 	{ 0x18, "tx_bcast" },
180 	{ 0x19, "tx_mcast" },
181 	{ 0x1A, "tx_ucast" },
182 	{ 0x1B, "tx_deferred" },
183 	{ 0x1C, "tx_total_col" },
184 	{ 0x1D, "tx_exc_col" },
185 	{ 0x1E, "tx_single_col" },
186 	{ 0x1F, "tx_mult_col" },
187 	{ 0x80, "rx_total" },
188 	{ 0x81, "tx_total" },
189 	{ 0x82, "rx_discards" },
190 	{ 0x83, "tx_discards" },
191 };
192 
193 static const struct ksz_dev_ops ksz8_dev_ops = {
194 	.setup = ksz8_setup,
195 	.get_port_addr = ksz8_get_port_addr,
196 	.cfg_port_member = ksz8_cfg_port_member,
197 	.flush_dyn_mac_table = ksz8_flush_dyn_mac_table,
198 	.port_setup = ksz8_port_setup,
199 	.r_phy = ksz8_r_phy,
200 	.w_phy = ksz8_w_phy,
201 	.r_mib_cnt = ksz8_r_mib_cnt,
202 	.r_mib_pkt = ksz8_r_mib_pkt,
203 	.r_mib_stat64 = ksz88xx_r_mib_stats64,
204 	.freeze_mib = ksz8_freeze_mib,
205 	.port_init_cnt = ksz8_port_init_cnt,
206 	.fdb_dump = ksz8_fdb_dump,
207 	.mdb_add = ksz8_mdb_add,
208 	.mdb_del = ksz8_mdb_del,
209 	.vlan_filtering = ksz8_port_vlan_filtering,
210 	.vlan_add = ksz8_port_vlan_add,
211 	.vlan_del = ksz8_port_vlan_del,
212 	.mirror_add = ksz8_port_mirror_add,
213 	.mirror_del = ksz8_port_mirror_del,
214 	.get_caps = ksz8_get_caps,
215 	.config_cpu_port = ksz8_config_cpu_port,
216 	.enable_stp_addr = ksz8_enable_stp_addr,
217 	.reset = ksz8_reset_switch,
218 	.init = ksz8_switch_init,
219 	.exit = ksz8_switch_exit,
220 	.change_mtu = ksz8_change_mtu,
221 };
222 
223 static void ksz9477_phylink_mac_link_up(struct ksz_device *dev, int port,
224 					unsigned int mode,
225 					phy_interface_t interface,
226 					struct phy_device *phydev, int speed,
227 					int duplex, bool tx_pause,
228 					bool rx_pause);
229 
230 static const struct ksz_dev_ops ksz9477_dev_ops = {
231 	.setup = ksz9477_setup,
232 	.get_port_addr = ksz9477_get_port_addr,
233 	.cfg_port_member = ksz9477_cfg_port_member,
234 	.flush_dyn_mac_table = ksz9477_flush_dyn_mac_table,
235 	.port_setup = ksz9477_port_setup,
236 	.set_ageing_time = ksz9477_set_ageing_time,
237 	.r_phy = ksz9477_r_phy,
238 	.w_phy = ksz9477_w_phy,
239 	.r_mib_cnt = ksz9477_r_mib_cnt,
240 	.r_mib_pkt = ksz9477_r_mib_pkt,
241 	.r_mib_stat64 = ksz_r_mib_stats64,
242 	.freeze_mib = ksz9477_freeze_mib,
243 	.port_init_cnt = ksz9477_port_init_cnt,
244 	.vlan_filtering = ksz9477_port_vlan_filtering,
245 	.vlan_add = ksz9477_port_vlan_add,
246 	.vlan_del = ksz9477_port_vlan_del,
247 	.mirror_add = ksz9477_port_mirror_add,
248 	.mirror_del = ksz9477_port_mirror_del,
249 	.get_caps = ksz9477_get_caps,
250 	.fdb_dump = ksz9477_fdb_dump,
251 	.fdb_add = ksz9477_fdb_add,
252 	.fdb_del = ksz9477_fdb_del,
253 	.mdb_add = ksz9477_mdb_add,
254 	.mdb_del = ksz9477_mdb_del,
255 	.change_mtu = ksz9477_change_mtu,
256 	.phylink_mac_link_up = ksz9477_phylink_mac_link_up,
257 	.config_cpu_port = ksz9477_config_cpu_port,
258 	.tc_cbs_set_cinc = ksz9477_tc_cbs_set_cinc,
259 	.enable_stp_addr = ksz9477_enable_stp_addr,
260 	.reset = ksz9477_reset_switch,
261 	.init = ksz9477_switch_init,
262 	.exit = ksz9477_switch_exit,
263 };
264 
265 static const struct ksz_dev_ops lan937x_dev_ops = {
266 	.setup = lan937x_setup,
267 	.teardown = lan937x_teardown,
268 	.get_port_addr = ksz9477_get_port_addr,
269 	.cfg_port_member = ksz9477_cfg_port_member,
270 	.flush_dyn_mac_table = ksz9477_flush_dyn_mac_table,
271 	.port_setup = lan937x_port_setup,
272 	.set_ageing_time = lan937x_set_ageing_time,
273 	.r_phy = lan937x_r_phy,
274 	.w_phy = lan937x_w_phy,
275 	.r_mib_cnt = ksz9477_r_mib_cnt,
276 	.r_mib_pkt = ksz9477_r_mib_pkt,
277 	.r_mib_stat64 = ksz_r_mib_stats64,
278 	.freeze_mib = ksz9477_freeze_mib,
279 	.port_init_cnt = ksz9477_port_init_cnt,
280 	.vlan_filtering = ksz9477_port_vlan_filtering,
281 	.vlan_add = ksz9477_port_vlan_add,
282 	.vlan_del = ksz9477_port_vlan_del,
283 	.mirror_add = ksz9477_port_mirror_add,
284 	.mirror_del = ksz9477_port_mirror_del,
285 	.get_caps = lan937x_phylink_get_caps,
286 	.setup_rgmii_delay = lan937x_setup_rgmii_delay,
287 	.fdb_dump = ksz9477_fdb_dump,
288 	.fdb_add = ksz9477_fdb_add,
289 	.fdb_del = ksz9477_fdb_del,
290 	.mdb_add = ksz9477_mdb_add,
291 	.mdb_del = ksz9477_mdb_del,
292 	.change_mtu = lan937x_change_mtu,
293 	.phylink_mac_link_up = ksz9477_phylink_mac_link_up,
294 	.config_cpu_port = lan937x_config_cpu_port,
295 	.tc_cbs_set_cinc = lan937x_tc_cbs_set_cinc,
296 	.enable_stp_addr = ksz9477_enable_stp_addr,
297 	.reset = lan937x_reset_switch,
298 	.init = lan937x_switch_init,
299 	.exit = lan937x_switch_exit,
300 };
301 
302 static const u16 ksz8795_regs[] = {
303 	[REG_IND_CTRL_0]		= 0x6E,
304 	[REG_IND_DATA_8]		= 0x70,
305 	[REG_IND_DATA_CHECK]		= 0x72,
306 	[REG_IND_DATA_HI]		= 0x71,
307 	[REG_IND_DATA_LO]		= 0x75,
308 	[REG_IND_MIB_CHECK]		= 0x74,
309 	[REG_IND_BYTE]			= 0xA0,
310 	[P_FORCE_CTRL]			= 0x0C,
311 	[P_LINK_STATUS]			= 0x0E,
312 	[P_LOCAL_CTRL]			= 0x07,
313 	[P_NEG_RESTART_CTRL]		= 0x0D,
314 	[P_REMOTE_STATUS]		= 0x08,
315 	[P_SPEED_STATUS]		= 0x09,
316 	[S_TAIL_TAG_CTRL]		= 0x0C,
317 	[P_STP_CTRL]			= 0x02,
318 	[S_START_CTRL]			= 0x01,
319 	[S_BROADCAST_CTRL]		= 0x06,
320 	[S_MULTICAST_CTRL]		= 0x04,
321 	[P_XMII_CTRL_0]			= 0x06,
322 	[P_XMII_CTRL_1]			= 0x56,
323 };
324 
325 static const u32 ksz8795_masks[] = {
326 	[PORT_802_1P_REMAPPING]		= BIT(7),
327 	[SW_TAIL_TAG_ENABLE]		= BIT(1),
328 	[MIB_COUNTER_OVERFLOW]		= BIT(6),
329 	[MIB_COUNTER_VALID]		= BIT(5),
330 	[VLAN_TABLE_FID]		= GENMASK(6, 0),
331 	[VLAN_TABLE_MEMBERSHIP]		= GENMASK(11, 7),
332 	[VLAN_TABLE_VALID]		= BIT(12),
333 	[STATIC_MAC_TABLE_VALID]	= BIT(21),
334 	[STATIC_MAC_TABLE_USE_FID]	= BIT(23),
335 	[STATIC_MAC_TABLE_FID]		= GENMASK(30, 24),
336 	[STATIC_MAC_TABLE_OVERRIDE]	= BIT(26),
337 	[STATIC_MAC_TABLE_FWD_PORTS]	= GENMASK(24, 20),
338 	[DYNAMIC_MAC_TABLE_ENTRIES_H]	= GENMASK(6, 0),
339 	[DYNAMIC_MAC_TABLE_MAC_EMPTY]	= BIT(8),
340 	[DYNAMIC_MAC_TABLE_NOT_READY]	= BIT(7),
341 	[DYNAMIC_MAC_TABLE_ENTRIES]	= GENMASK(31, 29),
342 	[DYNAMIC_MAC_TABLE_FID]		= GENMASK(26, 20),
343 	[DYNAMIC_MAC_TABLE_SRC_PORT]	= GENMASK(26, 24),
344 	[DYNAMIC_MAC_TABLE_TIMESTAMP]	= GENMASK(28, 27),
345 	[P_MII_TX_FLOW_CTRL]		= BIT(5),
346 	[P_MII_RX_FLOW_CTRL]		= BIT(5),
347 };
348 
349 static const u8 ksz8795_xmii_ctrl0[] = {
350 	[P_MII_100MBIT]			= 0,
351 	[P_MII_10MBIT]			= 1,
352 	[P_MII_FULL_DUPLEX]		= 0,
353 	[P_MII_HALF_DUPLEX]		= 1,
354 };
355 
356 static const u8 ksz8795_xmii_ctrl1[] = {
357 	[P_RGMII_SEL]			= 3,
358 	[P_GMII_SEL]			= 2,
359 	[P_RMII_SEL]			= 1,
360 	[P_MII_SEL]			= 0,
361 	[P_GMII_1GBIT]			= 1,
362 	[P_GMII_NOT_1GBIT]		= 0,
363 };
364 
365 static const u8 ksz8795_shifts[] = {
366 	[VLAN_TABLE_MEMBERSHIP_S]	= 7,
367 	[VLAN_TABLE]			= 16,
368 	[STATIC_MAC_FWD_PORTS]		= 16,
369 	[STATIC_MAC_FID]		= 24,
370 	[DYNAMIC_MAC_ENTRIES_H]		= 3,
371 	[DYNAMIC_MAC_ENTRIES]		= 29,
372 	[DYNAMIC_MAC_FID]		= 16,
373 	[DYNAMIC_MAC_TIMESTAMP]		= 27,
374 	[DYNAMIC_MAC_SRC_PORT]		= 24,
375 };
376 
377 static const u16 ksz8863_regs[] = {
378 	[REG_IND_CTRL_0]		= 0x79,
379 	[REG_IND_DATA_8]		= 0x7B,
380 	[REG_IND_DATA_CHECK]		= 0x7B,
381 	[REG_IND_DATA_HI]		= 0x7C,
382 	[REG_IND_DATA_LO]		= 0x80,
383 	[REG_IND_MIB_CHECK]		= 0x80,
384 	[P_FORCE_CTRL]			= 0x0C,
385 	[P_LINK_STATUS]			= 0x0E,
386 	[P_LOCAL_CTRL]			= 0x0C,
387 	[P_NEG_RESTART_CTRL]		= 0x0D,
388 	[P_REMOTE_STATUS]		= 0x0E,
389 	[P_SPEED_STATUS]		= 0x0F,
390 	[S_TAIL_TAG_CTRL]		= 0x03,
391 	[P_STP_CTRL]			= 0x02,
392 	[S_START_CTRL]			= 0x01,
393 	[S_BROADCAST_CTRL]		= 0x06,
394 	[S_MULTICAST_CTRL]		= 0x04,
395 };
396 
397 static const u32 ksz8863_masks[] = {
398 	[PORT_802_1P_REMAPPING]		= BIT(3),
399 	[SW_TAIL_TAG_ENABLE]		= BIT(6),
400 	[MIB_COUNTER_OVERFLOW]		= BIT(7),
401 	[MIB_COUNTER_VALID]		= BIT(6),
402 	[VLAN_TABLE_FID]		= GENMASK(15, 12),
403 	[VLAN_TABLE_MEMBERSHIP]		= GENMASK(18, 16),
404 	[VLAN_TABLE_VALID]		= BIT(19),
405 	[STATIC_MAC_TABLE_VALID]	= BIT(19),
406 	[STATIC_MAC_TABLE_USE_FID]	= BIT(21),
407 	[STATIC_MAC_TABLE_FID]		= GENMASK(29, 26),
408 	[STATIC_MAC_TABLE_OVERRIDE]	= BIT(20),
409 	[STATIC_MAC_TABLE_FWD_PORTS]	= GENMASK(18, 16),
410 	[DYNAMIC_MAC_TABLE_ENTRIES_H]	= GENMASK(5, 0),
411 	[DYNAMIC_MAC_TABLE_MAC_EMPTY]	= BIT(7),
412 	[DYNAMIC_MAC_TABLE_NOT_READY]	= BIT(7),
413 	[DYNAMIC_MAC_TABLE_ENTRIES]	= GENMASK(31, 28),
414 	[DYNAMIC_MAC_TABLE_FID]		= GENMASK(19, 16),
415 	[DYNAMIC_MAC_TABLE_SRC_PORT]	= GENMASK(21, 20),
416 	[DYNAMIC_MAC_TABLE_TIMESTAMP]	= GENMASK(23, 22),
417 };
418 
419 static u8 ksz8863_shifts[] = {
420 	[VLAN_TABLE_MEMBERSHIP_S]	= 16,
421 	[STATIC_MAC_FWD_PORTS]		= 16,
422 	[STATIC_MAC_FID]		= 22,
423 	[DYNAMIC_MAC_ENTRIES_H]		= 3,
424 	[DYNAMIC_MAC_ENTRIES]		= 24,
425 	[DYNAMIC_MAC_FID]		= 16,
426 	[DYNAMIC_MAC_TIMESTAMP]		= 24,
427 	[DYNAMIC_MAC_SRC_PORT]		= 20,
428 };
429 
430 static const u16 ksz9477_regs[] = {
431 	[P_STP_CTRL]			= 0x0B04,
432 	[S_START_CTRL]			= 0x0300,
433 	[S_BROADCAST_CTRL]		= 0x0332,
434 	[S_MULTICAST_CTRL]		= 0x0331,
435 	[P_XMII_CTRL_0]			= 0x0300,
436 	[P_XMII_CTRL_1]			= 0x0301,
437 };
438 
439 static const u32 ksz9477_masks[] = {
440 	[ALU_STAT_WRITE]		= 0,
441 	[ALU_STAT_READ]			= 1,
442 	[P_MII_TX_FLOW_CTRL]		= BIT(5),
443 	[P_MII_RX_FLOW_CTRL]		= BIT(3),
444 };
445 
446 static const u8 ksz9477_shifts[] = {
447 	[ALU_STAT_INDEX]		= 16,
448 };
449 
450 static const u8 ksz9477_xmii_ctrl0[] = {
451 	[P_MII_100MBIT]			= 1,
452 	[P_MII_10MBIT]			= 0,
453 	[P_MII_FULL_DUPLEX]		= 1,
454 	[P_MII_HALF_DUPLEX]		= 0,
455 };
456 
457 static const u8 ksz9477_xmii_ctrl1[] = {
458 	[P_RGMII_SEL]			= 0,
459 	[P_RMII_SEL]			= 1,
460 	[P_GMII_SEL]			= 2,
461 	[P_MII_SEL]			= 3,
462 	[P_GMII_1GBIT]			= 0,
463 	[P_GMII_NOT_1GBIT]		= 1,
464 };
465 
466 static const u32 lan937x_masks[] = {
467 	[ALU_STAT_WRITE]		= 1,
468 	[ALU_STAT_READ]			= 2,
469 	[P_MII_TX_FLOW_CTRL]		= BIT(5),
470 	[P_MII_RX_FLOW_CTRL]		= BIT(3),
471 };
472 
473 static const u8 lan937x_shifts[] = {
474 	[ALU_STAT_INDEX]		= 8,
475 };
476 
477 static const struct regmap_range ksz8563_valid_regs[] = {
478 	regmap_reg_range(0x0000, 0x0003),
479 	regmap_reg_range(0x0006, 0x0006),
480 	regmap_reg_range(0x000f, 0x001f),
481 	regmap_reg_range(0x0100, 0x0100),
482 	regmap_reg_range(0x0104, 0x0107),
483 	regmap_reg_range(0x010d, 0x010d),
484 	regmap_reg_range(0x0110, 0x0113),
485 	regmap_reg_range(0x0120, 0x012b),
486 	regmap_reg_range(0x0201, 0x0201),
487 	regmap_reg_range(0x0210, 0x0213),
488 	regmap_reg_range(0x0300, 0x0300),
489 	regmap_reg_range(0x0302, 0x031b),
490 	regmap_reg_range(0x0320, 0x032b),
491 	regmap_reg_range(0x0330, 0x0336),
492 	regmap_reg_range(0x0338, 0x033e),
493 	regmap_reg_range(0x0340, 0x035f),
494 	regmap_reg_range(0x0370, 0x0370),
495 	regmap_reg_range(0x0378, 0x0378),
496 	regmap_reg_range(0x037c, 0x037d),
497 	regmap_reg_range(0x0390, 0x0393),
498 	regmap_reg_range(0x0400, 0x040e),
499 	regmap_reg_range(0x0410, 0x042f),
500 	regmap_reg_range(0x0500, 0x0519),
501 	regmap_reg_range(0x0520, 0x054b),
502 	regmap_reg_range(0x0550, 0x05b3),
503 
504 	/* port 1 */
505 	regmap_reg_range(0x1000, 0x1001),
506 	regmap_reg_range(0x1004, 0x100b),
507 	regmap_reg_range(0x1013, 0x1013),
508 	regmap_reg_range(0x1017, 0x1017),
509 	regmap_reg_range(0x101b, 0x101b),
510 	regmap_reg_range(0x101f, 0x1021),
511 	regmap_reg_range(0x1030, 0x1030),
512 	regmap_reg_range(0x1100, 0x1111),
513 	regmap_reg_range(0x111a, 0x111d),
514 	regmap_reg_range(0x1122, 0x1127),
515 	regmap_reg_range(0x112a, 0x112b),
516 	regmap_reg_range(0x1136, 0x1139),
517 	regmap_reg_range(0x113e, 0x113f),
518 	regmap_reg_range(0x1400, 0x1401),
519 	regmap_reg_range(0x1403, 0x1403),
520 	regmap_reg_range(0x1410, 0x1417),
521 	regmap_reg_range(0x1420, 0x1423),
522 	regmap_reg_range(0x1500, 0x1507),
523 	regmap_reg_range(0x1600, 0x1612),
524 	regmap_reg_range(0x1800, 0x180f),
525 	regmap_reg_range(0x1900, 0x1907),
526 	regmap_reg_range(0x1914, 0x191b),
527 	regmap_reg_range(0x1a00, 0x1a03),
528 	regmap_reg_range(0x1a04, 0x1a08),
529 	regmap_reg_range(0x1b00, 0x1b01),
530 	regmap_reg_range(0x1b04, 0x1b04),
531 	regmap_reg_range(0x1c00, 0x1c05),
532 	regmap_reg_range(0x1c08, 0x1c1b),
533 
534 	/* port 2 */
535 	regmap_reg_range(0x2000, 0x2001),
536 	regmap_reg_range(0x2004, 0x200b),
537 	regmap_reg_range(0x2013, 0x2013),
538 	regmap_reg_range(0x2017, 0x2017),
539 	regmap_reg_range(0x201b, 0x201b),
540 	regmap_reg_range(0x201f, 0x2021),
541 	regmap_reg_range(0x2030, 0x2030),
542 	regmap_reg_range(0x2100, 0x2111),
543 	regmap_reg_range(0x211a, 0x211d),
544 	regmap_reg_range(0x2122, 0x2127),
545 	regmap_reg_range(0x212a, 0x212b),
546 	regmap_reg_range(0x2136, 0x2139),
547 	regmap_reg_range(0x213e, 0x213f),
548 	regmap_reg_range(0x2400, 0x2401),
549 	regmap_reg_range(0x2403, 0x2403),
550 	regmap_reg_range(0x2410, 0x2417),
551 	regmap_reg_range(0x2420, 0x2423),
552 	regmap_reg_range(0x2500, 0x2507),
553 	regmap_reg_range(0x2600, 0x2612),
554 	regmap_reg_range(0x2800, 0x280f),
555 	regmap_reg_range(0x2900, 0x2907),
556 	regmap_reg_range(0x2914, 0x291b),
557 	regmap_reg_range(0x2a00, 0x2a03),
558 	regmap_reg_range(0x2a04, 0x2a08),
559 	regmap_reg_range(0x2b00, 0x2b01),
560 	regmap_reg_range(0x2b04, 0x2b04),
561 	regmap_reg_range(0x2c00, 0x2c05),
562 	regmap_reg_range(0x2c08, 0x2c1b),
563 
564 	/* port 3 */
565 	regmap_reg_range(0x3000, 0x3001),
566 	regmap_reg_range(0x3004, 0x300b),
567 	regmap_reg_range(0x3013, 0x3013),
568 	regmap_reg_range(0x3017, 0x3017),
569 	regmap_reg_range(0x301b, 0x301b),
570 	regmap_reg_range(0x301f, 0x3021),
571 	regmap_reg_range(0x3030, 0x3030),
572 	regmap_reg_range(0x3300, 0x3301),
573 	regmap_reg_range(0x3303, 0x3303),
574 	regmap_reg_range(0x3400, 0x3401),
575 	regmap_reg_range(0x3403, 0x3403),
576 	regmap_reg_range(0x3410, 0x3417),
577 	regmap_reg_range(0x3420, 0x3423),
578 	regmap_reg_range(0x3500, 0x3507),
579 	regmap_reg_range(0x3600, 0x3612),
580 	regmap_reg_range(0x3800, 0x380f),
581 	regmap_reg_range(0x3900, 0x3907),
582 	regmap_reg_range(0x3914, 0x391b),
583 	regmap_reg_range(0x3a00, 0x3a03),
584 	regmap_reg_range(0x3a04, 0x3a08),
585 	regmap_reg_range(0x3b00, 0x3b01),
586 	regmap_reg_range(0x3b04, 0x3b04),
587 	regmap_reg_range(0x3c00, 0x3c05),
588 	regmap_reg_range(0x3c08, 0x3c1b),
589 };
590 
591 static const struct regmap_access_table ksz8563_register_set = {
592 	.yes_ranges = ksz8563_valid_regs,
593 	.n_yes_ranges = ARRAY_SIZE(ksz8563_valid_regs),
594 };
595 
596 static const struct regmap_range ksz9477_valid_regs[] = {
597 	regmap_reg_range(0x0000, 0x0003),
598 	regmap_reg_range(0x0006, 0x0006),
599 	regmap_reg_range(0x0010, 0x001f),
600 	regmap_reg_range(0x0100, 0x0100),
601 	regmap_reg_range(0x0103, 0x0107),
602 	regmap_reg_range(0x010d, 0x010d),
603 	regmap_reg_range(0x0110, 0x0113),
604 	regmap_reg_range(0x0120, 0x012b),
605 	regmap_reg_range(0x0201, 0x0201),
606 	regmap_reg_range(0x0210, 0x0213),
607 	regmap_reg_range(0x0300, 0x0300),
608 	regmap_reg_range(0x0302, 0x031b),
609 	regmap_reg_range(0x0320, 0x032b),
610 	regmap_reg_range(0x0330, 0x0336),
611 	regmap_reg_range(0x0338, 0x033b),
612 	regmap_reg_range(0x033e, 0x033e),
613 	regmap_reg_range(0x0340, 0x035f),
614 	regmap_reg_range(0x0370, 0x0370),
615 	regmap_reg_range(0x0378, 0x0378),
616 	regmap_reg_range(0x037c, 0x037d),
617 	regmap_reg_range(0x0390, 0x0393),
618 	regmap_reg_range(0x0400, 0x040e),
619 	regmap_reg_range(0x0410, 0x042f),
620 	regmap_reg_range(0x0444, 0x044b),
621 	regmap_reg_range(0x0450, 0x046f),
622 	regmap_reg_range(0x0500, 0x0519),
623 	regmap_reg_range(0x0520, 0x054b),
624 	regmap_reg_range(0x0550, 0x05b3),
625 	regmap_reg_range(0x0604, 0x060b),
626 	regmap_reg_range(0x0610, 0x0612),
627 	regmap_reg_range(0x0614, 0x062c),
628 	regmap_reg_range(0x0640, 0x0645),
629 	regmap_reg_range(0x0648, 0x064d),
630 
631 	/* port 1 */
632 	regmap_reg_range(0x1000, 0x1001),
633 	regmap_reg_range(0x1013, 0x1013),
634 	regmap_reg_range(0x1017, 0x1017),
635 	regmap_reg_range(0x101b, 0x101b),
636 	regmap_reg_range(0x101f, 0x1020),
637 	regmap_reg_range(0x1030, 0x1030),
638 	regmap_reg_range(0x1100, 0x1115),
639 	regmap_reg_range(0x111a, 0x111f),
640 	regmap_reg_range(0x1122, 0x1127),
641 	regmap_reg_range(0x112a, 0x112b),
642 	regmap_reg_range(0x1136, 0x1139),
643 	regmap_reg_range(0x113e, 0x113f),
644 	regmap_reg_range(0x1400, 0x1401),
645 	regmap_reg_range(0x1403, 0x1403),
646 	regmap_reg_range(0x1410, 0x1417),
647 	regmap_reg_range(0x1420, 0x1423),
648 	regmap_reg_range(0x1500, 0x1507),
649 	regmap_reg_range(0x1600, 0x1613),
650 	regmap_reg_range(0x1800, 0x180f),
651 	regmap_reg_range(0x1820, 0x1827),
652 	regmap_reg_range(0x1830, 0x1837),
653 	regmap_reg_range(0x1840, 0x184b),
654 	regmap_reg_range(0x1900, 0x1907),
655 	regmap_reg_range(0x1914, 0x191b),
656 	regmap_reg_range(0x1920, 0x1920),
657 	regmap_reg_range(0x1923, 0x1927),
658 	regmap_reg_range(0x1a00, 0x1a03),
659 	regmap_reg_range(0x1a04, 0x1a07),
660 	regmap_reg_range(0x1b00, 0x1b01),
661 	regmap_reg_range(0x1b04, 0x1b04),
662 	regmap_reg_range(0x1c00, 0x1c05),
663 	regmap_reg_range(0x1c08, 0x1c1b),
664 
665 	/* port 2 */
666 	regmap_reg_range(0x2000, 0x2001),
667 	regmap_reg_range(0x2013, 0x2013),
668 	regmap_reg_range(0x2017, 0x2017),
669 	regmap_reg_range(0x201b, 0x201b),
670 	regmap_reg_range(0x201f, 0x2020),
671 	regmap_reg_range(0x2030, 0x2030),
672 	regmap_reg_range(0x2100, 0x2115),
673 	regmap_reg_range(0x211a, 0x211f),
674 	regmap_reg_range(0x2122, 0x2127),
675 	regmap_reg_range(0x212a, 0x212b),
676 	regmap_reg_range(0x2136, 0x2139),
677 	regmap_reg_range(0x213e, 0x213f),
678 	regmap_reg_range(0x2400, 0x2401),
679 	regmap_reg_range(0x2403, 0x2403),
680 	regmap_reg_range(0x2410, 0x2417),
681 	regmap_reg_range(0x2420, 0x2423),
682 	regmap_reg_range(0x2500, 0x2507),
683 	regmap_reg_range(0x2600, 0x2613),
684 	regmap_reg_range(0x2800, 0x280f),
685 	regmap_reg_range(0x2820, 0x2827),
686 	regmap_reg_range(0x2830, 0x2837),
687 	regmap_reg_range(0x2840, 0x284b),
688 	regmap_reg_range(0x2900, 0x2907),
689 	regmap_reg_range(0x2914, 0x291b),
690 	regmap_reg_range(0x2920, 0x2920),
691 	regmap_reg_range(0x2923, 0x2927),
692 	regmap_reg_range(0x2a00, 0x2a03),
693 	regmap_reg_range(0x2a04, 0x2a07),
694 	regmap_reg_range(0x2b00, 0x2b01),
695 	regmap_reg_range(0x2b04, 0x2b04),
696 	regmap_reg_range(0x2c00, 0x2c05),
697 	regmap_reg_range(0x2c08, 0x2c1b),
698 
699 	/* port 3 */
700 	regmap_reg_range(0x3000, 0x3001),
701 	regmap_reg_range(0x3013, 0x3013),
702 	regmap_reg_range(0x3017, 0x3017),
703 	regmap_reg_range(0x301b, 0x301b),
704 	regmap_reg_range(0x301f, 0x3020),
705 	regmap_reg_range(0x3030, 0x3030),
706 	regmap_reg_range(0x3100, 0x3115),
707 	regmap_reg_range(0x311a, 0x311f),
708 	regmap_reg_range(0x3122, 0x3127),
709 	regmap_reg_range(0x312a, 0x312b),
710 	regmap_reg_range(0x3136, 0x3139),
711 	regmap_reg_range(0x313e, 0x313f),
712 	regmap_reg_range(0x3400, 0x3401),
713 	regmap_reg_range(0x3403, 0x3403),
714 	regmap_reg_range(0x3410, 0x3417),
715 	regmap_reg_range(0x3420, 0x3423),
716 	regmap_reg_range(0x3500, 0x3507),
717 	regmap_reg_range(0x3600, 0x3613),
718 	regmap_reg_range(0x3800, 0x380f),
719 	regmap_reg_range(0x3820, 0x3827),
720 	regmap_reg_range(0x3830, 0x3837),
721 	regmap_reg_range(0x3840, 0x384b),
722 	regmap_reg_range(0x3900, 0x3907),
723 	regmap_reg_range(0x3914, 0x391b),
724 	regmap_reg_range(0x3920, 0x3920),
725 	regmap_reg_range(0x3923, 0x3927),
726 	regmap_reg_range(0x3a00, 0x3a03),
727 	regmap_reg_range(0x3a04, 0x3a07),
728 	regmap_reg_range(0x3b00, 0x3b01),
729 	regmap_reg_range(0x3b04, 0x3b04),
730 	regmap_reg_range(0x3c00, 0x3c05),
731 	regmap_reg_range(0x3c08, 0x3c1b),
732 
733 	/* port 4 */
734 	regmap_reg_range(0x4000, 0x4001),
735 	regmap_reg_range(0x4013, 0x4013),
736 	regmap_reg_range(0x4017, 0x4017),
737 	regmap_reg_range(0x401b, 0x401b),
738 	regmap_reg_range(0x401f, 0x4020),
739 	regmap_reg_range(0x4030, 0x4030),
740 	regmap_reg_range(0x4100, 0x4115),
741 	regmap_reg_range(0x411a, 0x411f),
742 	regmap_reg_range(0x4122, 0x4127),
743 	regmap_reg_range(0x412a, 0x412b),
744 	regmap_reg_range(0x4136, 0x4139),
745 	regmap_reg_range(0x413e, 0x413f),
746 	regmap_reg_range(0x4400, 0x4401),
747 	regmap_reg_range(0x4403, 0x4403),
748 	regmap_reg_range(0x4410, 0x4417),
749 	regmap_reg_range(0x4420, 0x4423),
750 	regmap_reg_range(0x4500, 0x4507),
751 	regmap_reg_range(0x4600, 0x4613),
752 	regmap_reg_range(0x4800, 0x480f),
753 	regmap_reg_range(0x4820, 0x4827),
754 	regmap_reg_range(0x4830, 0x4837),
755 	regmap_reg_range(0x4840, 0x484b),
756 	regmap_reg_range(0x4900, 0x4907),
757 	regmap_reg_range(0x4914, 0x491b),
758 	regmap_reg_range(0x4920, 0x4920),
759 	regmap_reg_range(0x4923, 0x4927),
760 	regmap_reg_range(0x4a00, 0x4a03),
761 	regmap_reg_range(0x4a04, 0x4a07),
762 	regmap_reg_range(0x4b00, 0x4b01),
763 	regmap_reg_range(0x4b04, 0x4b04),
764 	regmap_reg_range(0x4c00, 0x4c05),
765 	regmap_reg_range(0x4c08, 0x4c1b),
766 
767 	/* port 5 */
768 	regmap_reg_range(0x5000, 0x5001),
769 	regmap_reg_range(0x5013, 0x5013),
770 	regmap_reg_range(0x5017, 0x5017),
771 	regmap_reg_range(0x501b, 0x501b),
772 	regmap_reg_range(0x501f, 0x5020),
773 	regmap_reg_range(0x5030, 0x5030),
774 	regmap_reg_range(0x5100, 0x5115),
775 	regmap_reg_range(0x511a, 0x511f),
776 	regmap_reg_range(0x5122, 0x5127),
777 	regmap_reg_range(0x512a, 0x512b),
778 	regmap_reg_range(0x5136, 0x5139),
779 	regmap_reg_range(0x513e, 0x513f),
780 	regmap_reg_range(0x5400, 0x5401),
781 	regmap_reg_range(0x5403, 0x5403),
782 	regmap_reg_range(0x5410, 0x5417),
783 	regmap_reg_range(0x5420, 0x5423),
784 	regmap_reg_range(0x5500, 0x5507),
785 	regmap_reg_range(0x5600, 0x5613),
786 	regmap_reg_range(0x5800, 0x580f),
787 	regmap_reg_range(0x5820, 0x5827),
788 	regmap_reg_range(0x5830, 0x5837),
789 	regmap_reg_range(0x5840, 0x584b),
790 	regmap_reg_range(0x5900, 0x5907),
791 	regmap_reg_range(0x5914, 0x591b),
792 	regmap_reg_range(0x5920, 0x5920),
793 	regmap_reg_range(0x5923, 0x5927),
794 	regmap_reg_range(0x5a00, 0x5a03),
795 	regmap_reg_range(0x5a04, 0x5a07),
796 	regmap_reg_range(0x5b00, 0x5b01),
797 	regmap_reg_range(0x5b04, 0x5b04),
798 	regmap_reg_range(0x5c00, 0x5c05),
799 	regmap_reg_range(0x5c08, 0x5c1b),
800 
801 	/* port 6 */
802 	regmap_reg_range(0x6000, 0x6001),
803 	regmap_reg_range(0x6013, 0x6013),
804 	regmap_reg_range(0x6017, 0x6017),
805 	regmap_reg_range(0x601b, 0x601b),
806 	regmap_reg_range(0x601f, 0x6020),
807 	regmap_reg_range(0x6030, 0x6030),
808 	regmap_reg_range(0x6300, 0x6301),
809 	regmap_reg_range(0x6400, 0x6401),
810 	regmap_reg_range(0x6403, 0x6403),
811 	regmap_reg_range(0x6410, 0x6417),
812 	regmap_reg_range(0x6420, 0x6423),
813 	regmap_reg_range(0x6500, 0x6507),
814 	regmap_reg_range(0x6600, 0x6613),
815 	regmap_reg_range(0x6800, 0x680f),
816 	regmap_reg_range(0x6820, 0x6827),
817 	regmap_reg_range(0x6830, 0x6837),
818 	regmap_reg_range(0x6840, 0x684b),
819 	regmap_reg_range(0x6900, 0x6907),
820 	regmap_reg_range(0x6914, 0x691b),
821 	regmap_reg_range(0x6920, 0x6920),
822 	regmap_reg_range(0x6923, 0x6927),
823 	regmap_reg_range(0x6a00, 0x6a03),
824 	regmap_reg_range(0x6a04, 0x6a07),
825 	regmap_reg_range(0x6b00, 0x6b01),
826 	regmap_reg_range(0x6b04, 0x6b04),
827 	regmap_reg_range(0x6c00, 0x6c05),
828 	regmap_reg_range(0x6c08, 0x6c1b),
829 
830 	/* port 7 */
831 	regmap_reg_range(0x7000, 0x7001),
832 	regmap_reg_range(0x7013, 0x7013),
833 	regmap_reg_range(0x7017, 0x7017),
834 	regmap_reg_range(0x701b, 0x701b),
835 	regmap_reg_range(0x701f, 0x7020),
836 	regmap_reg_range(0x7030, 0x7030),
837 	regmap_reg_range(0x7200, 0x7203),
838 	regmap_reg_range(0x7206, 0x7207),
839 	regmap_reg_range(0x7300, 0x7301),
840 	regmap_reg_range(0x7400, 0x7401),
841 	regmap_reg_range(0x7403, 0x7403),
842 	regmap_reg_range(0x7410, 0x7417),
843 	regmap_reg_range(0x7420, 0x7423),
844 	regmap_reg_range(0x7500, 0x7507),
845 	regmap_reg_range(0x7600, 0x7613),
846 	regmap_reg_range(0x7800, 0x780f),
847 	regmap_reg_range(0x7820, 0x7827),
848 	regmap_reg_range(0x7830, 0x7837),
849 	regmap_reg_range(0x7840, 0x784b),
850 	regmap_reg_range(0x7900, 0x7907),
851 	regmap_reg_range(0x7914, 0x791b),
852 	regmap_reg_range(0x7920, 0x7920),
853 	regmap_reg_range(0x7923, 0x7927),
854 	regmap_reg_range(0x7a00, 0x7a03),
855 	regmap_reg_range(0x7a04, 0x7a07),
856 	regmap_reg_range(0x7b00, 0x7b01),
857 	regmap_reg_range(0x7b04, 0x7b04),
858 	regmap_reg_range(0x7c00, 0x7c05),
859 	regmap_reg_range(0x7c08, 0x7c1b),
860 };
861 
862 static const struct regmap_access_table ksz9477_register_set = {
863 	.yes_ranges = ksz9477_valid_regs,
864 	.n_yes_ranges = ARRAY_SIZE(ksz9477_valid_regs),
865 };
866 
867 static const struct regmap_range ksz9896_valid_regs[] = {
868 	regmap_reg_range(0x0000, 0x0003),
869 	regmap_reg_range(0x0006, 0x0006),
870 	regmap_reg_range(0x0010, 0x001f),
871 	regmap_reg_range(0x0100, 0x0100),
872 	regmap_reg_range(0x0103, 0x0107),
873 	regmap_reg_range(0x010d, 0x010d),
874 	regmap_reg_range(0x0110, 0x0113),
875 	regmap_reg_range(0x0120, 0x0127),
876 	regmap_reg_range(0x0201, 0x0201),
877 	regmap_reg_range(0x0210, 0x0213),
878 	regmap_reg_range(0x0300, 0x0300),
879 	regmap_reg_range(0x0302, 0x030b),
880 	regmap_reg_range(0x0310, 0x031b),
881 	regmap_reg_range(0x0320, 0x032b),
882 	regmap_reg_range(0x0330, 0x0336),
883 	regmap_reg_range(0x0338, 0x033b),
884 	regmap_reg_range(0x033e, 0x033e),
885 	regmap_reg_range(0x0340, 0x035f),
886 	regmap_reg_range(0x0370, 0x0370),
887 	regmap_reg_range(0x0378, 0x0378),
888 	regmap_reg_range(0x037c, 0x037d),
889 	regmap_reg_range(0x0390, 0x0393),
890 	regmap_reg_range(0x0400, 0x040e),
891 	regmap_reg_range(0x0410, 0x042f),
892 
893 	/* port 1 */
894 	regmap_reg_range(0x1000, 0x1001),
895 	regmap_reg_range(0x1013, 0x1013),
896 	regmap_reg_range(0x1017, 0x1017),
897 	regmap_reg_range(0x101b, 0x101b),
898 	regmap_reg_range(0x101f, 0x1020),
899 	regmap_reg_range(0x1030, 0x1030),
900 	regmap_reg_range(0x1100, 0x1115),
901 	regmap_reg_range(0x111a, 0x111f),
902 	regmap_reg_range(0x1122, 0x1127),
903 	regmap_reg_range(0x112a, 0x112b),
904 	regmap_reg_range(0x1136, 0x1139),
905 	regmap_reg_range(0x113e, 0x113f),
906 	regmap_reg_range(0x1400, 0x1401),
907 	regmap_reg_range(0x1403, 0x1403),
908 	regmap_reg_range(0x1410, 0x1417),
909 	regmap_reg_range(0x1420, 0x1423),
910 	regmap_reg_range(0x1500, 0x1507),
911 	regmap_reg_range(0x1600, 0x1612),
912 	regmap_reg_range(0x1800, 0x180f),
913 	regmap_reg_range(0x1820, 0x1827),
914 	regmap_reg_range(0x1830, 0x1837),
915 	regmap_reg_range(0x1840, 0x184b),
916 	regmap_reg_range(0x1900, 0x1907),
917 	regmap_reg_range(0x1914, 0x1915),
918 	regmap_reg_range(0x1a00, 0x1a03),
919 	regmap_reg_range(0x1a04, 0x1a07),
920 	regmap_reg_range(0x1b00, 0x1b01),
921 	regmap_reg_range(0x1b04, 0x1b04),
922 
923 	/* port 2 */
924 	regmap_reg_range(0x2000, 0x2001),
925 	regmap_reg_range(0x2013, 0x2013),
926 	regmap_reg_range(0x2017, 0x2017),
927 	regmap_reg_range(0x201b, 0x201b),
928 	regmap_reg_range(0x201f, 0x2020),
929 	regmap_reg_range(0x2030, 0x2030),
930 	regmap_reg_range(0x2100, 0x2115),
931 	regmap_reg_range(0x211a, 0x211f),
932 	regmap_reg_range(0x2122, 0x2127),
933 	regmap_reg_range(0x212a, 0x212b),
934 	regmap_reg_range(0x2136, 0x2139),
935 	regmap_reg_range(0x213e, 0x213f),
936 	regmap_reg_range(0x2400, 0x2401),
937 	regmap_reg_range(0x2403, 0x2403),
938 	regmap_reg_range(0x2410, 0x2417),
939 	regmap_reg_range(0x2420, 0x2423),
940 	regmap_reg_range(0x2500, 0x2507),
941 	regmap_reg_range(0x2600, 0x2612),
942 	regmap_reg_range(0x2800, 0x280f),
943 	regmap_reg_range(0x2820, 0x2827),
944 	regmap_reg_range(0x2830, 0x2837),
945 	regmap_reg_range(0x2840, 0x284b),
946 	regmap_reg_range(0x2900, 0x2907),
947 	regmap_reg_range(0x2914, 0x2915),
948 	regmap_reg_range(0x2a00, 0x2a03),
949 	regmap_reg_range(0x2a04, 0x2a07),
950 	regmap_reg_range(0x2b00, 0x2b01),
951 	regmap_reg_range(0x2b04, 0x2b04),
952 
953 	/* port 3 */
954 	regmap_reg_range(0x3000, 0x3001),
955 	regmap_reg_range(0x3013, 0x3013),
956 	regmap_reg_range(0x3017, 0x3017),
957 	regmap_reg_range(0x301b, 0x301b),
958 	regmap_reg_range(0x301f, 0x3020),
959 	regmap_reg_range(0x3030, 0x3030),
960 	regmap_reg_range(0x3100, 0x3115),
961 	regmap_reg_range(0x311a, 0x311f),
962 	regmap_reg_range(0x3122, 0x3127),
963 	regmap_reg_range(0x312a, 0x312b),
964 	regmap_reg_range(0x3136, 0x3139),
965 	regmap_reg_range(0x313e, 0x313f),
966 	regmap_reg_range(0x3400, 0x3401),
967 	regmap_reg_range(0x3403, 0x3403),
968 	regmap_reg_range(0x3410, 0x3417),
969 	regmap_reg_range(0x3420, 0x3423),
970 	regmap_reg_range(0x3500, 0x3507),
971 	regmap_reg_range(0x3600, 0x3612),
972 	regmap_reg_range(0x3800, 0x380f),
973 	regmap_reg_range(0x3820, 0x3827),
974 	regmap_reg_range(0x3830, 0x3837),
975 	regmap_reg_range(0x3840, 0x384b),
976 	regmap_reg_range(0x3900, 0x3907),
977 	regmap_reg_range(0x3914, 0x3915),
978 	regmap_reg_range(0x3a00, 0x3a03),
979 	regmap_reg_range(0x3a04, 0x3a07),
980 	regmap_reg_range(0x3b00, 0x3b01),
981 	regmap_reg_range(0x3b04, 0x3b04),
982 
983 	/* port 4 */
984 	regmap_reg_range(0x4000, 0x4001),
985 	regmap_reg_range(0x4013, 0x4013),
986 	regmap_reg_range(0x4017, 0x4017),
987 	regmap_reg_range(0x401b, 0x401b),
988 	regmap_reg_range(0x401f, 0x4020),
989 	regmap_reg_range(0x4030, 0x4030),
990 	regmap_reg_range(0x4100, 0x4115),
991 	regmap_reg_range(0x411a, 0x411f),
992 	regmap_reg_range(0x4122, 0x4127),
993 	regmap_reg_range(0x412a, 0x412b),
994 	regmap_reg_range(0x4136, 0x4139),
995 	regmap_reg_range(0x413e, 0x413f),
996 	regmap_reg_range(0x4400, 0x4401),
997 	regmap_reg_range(0x4403, 0x4403),
998 	regmap_reg_range(0x4410, 0x4417),
999 	regmap_reg_range(0x4420, 0x4423),
1000 	regmap_reg_range(0x4500, 0x4507),
1001 	regmap_reg_range(0x4600, 0x4612),
1002 	regmap_reg_range(0x4800, 0x480f),
1003 	regmap_reg_range(0x4820, 0x4827),
1004 	regmap_reg_range(0x4830, 0x4837),
1005 	regmap_reg_range(0x4840, 0x484b),
1006 	regmap_reg_range(0x4900, 0x4907),
1007 	regmap_reg_range(0x4914, 0x4915),
1008 	regmap_reg_range(0x4a00, 0x4a03),
1009 	regmap_reg_range(0x4a04, 0x4a07),
1010 	regmap_reg_range(0x4b00, 0x4b01),
1011 	regmap_reg_range(0x4b04, 0x4b04),
1012 
1013 	/* port 5 */
1014 	regmap_reg_range(0x5000, 0x5001),
1015 	regmap_reg_range(0x5013, 0x5013),
1016 	regmap_reg_range(0x5017, 0x5017),
1017 	regmap_reg_range(0x501b, 0x501b),
1018 	regmap_reg_range(0x501f, 0x5020),
1019 	regmap_reg_range(0x5030, 0x5030),
1020 	regmap_reg_range(0x5100, 0x5115),
1021 	regmap_reg_range(0x511a, 0x511f),
1022 	regmap_reg_range(0x5122, 0x5127),
1023 	regmap_reg_range(0x512a, 0x512b),
1024 	regmap_reg_range(0x5136, 0x5139),
1025 	regmap_reg_range(0x513e, 0x513f),
1026 	regmap_reg_range(0x5400, 0x5401),
1027 	regmap_reg_range(0x5403, 0x5403),
1028 	regmap_reg_range(0x5410, 0x5417),
1029 	regmap_reg_range(0x5420, 0x5423),
1030 	regmap_reg_range(0x5500, 0x5507),
1031 	regmap_reg_range(0x5600, 0x5612),
1032 	regmap_reg_range(0x5800, 0x580f),
1033 	regmap_reg_range(0x5820, 0x5827),
1034 	regmap_reg_range(0x5830, 0x5837),
1035 	regmap_reg_range(0x5840, 0x584b),
1036 	regmap_reg_range(0x5900, 0x5907),
1037 	regmap_reg_range(0x5914, 0x5915),
1038 	regmap_reg_range(0x5a00, 0x5a03),
1039 	regmap_reg_range(0x5a04, 0x5a07),
1040 	regmap_reg_range(0x5b00, 0x5b01),
1041 	regmap_reg_range(0x5b04, 0x5b04),
1042 
1043 	/* port 6 */
1044 	regmap_reg_range(0x6000, 0x6001),
1045 	regmap_reg_range(0x6013, 0x6013),
1046 	regmap_reg_range(0x6017, 0x6017),
1047 	regmap_reg_range(0x601b, 0x601b),
1048 	regmap_reg_range(0x601f, 0x6020),
1049 	regmap_reg_range(0x6030, 0x6030),
1050 	regmap_reg_range(0x6100, 0x6115),
1051 	regmap_reg_range(0x611a, 0x611f),
1052 	regmap_reg_range(0x6122, 0x6127),
1053 	regmap_reg_range(0x612a, 0x612b),
1054 	regmap_reg_range(0x6136, 0x6139),
1055 	regmap_reg_range(0x613e, 0x613f),
1056 	regmap_reg_range(0x6300, 0x6301),
1057 	regmap_reg_range(0x6400, 0x6401),
1058 	regmap_reg_range(0x6403, 0x6403),
1059 	regmap_reg_range(0x6410, 0x6417),
1060 	regmap_reg_range(0x6420, 0x6423),
1061 	regmap_reg_range(0x6500, 0x6507),
1062 	regmap_reg_range(0x6600, 0x6612),
1063 	regmap_reg_range(0x6800, 0x680f),
1064 	regmap_reg_range(0x6820, 0x6827),
1065 	regmap_reg_range(0x6830, 0x6837),
1066 	regmap_reg_range(0x6840, 0x684b),
1067 	regmap_reg_range(0x6900, 0x6907),
1068 	regmap_reg_range(0x6914, 0x6915),
1069 	regmap_reg_range(0x6a00, 0x6a03),
1070 	regmap_reg_range(0x6a04, 0x6a07),
1071 	regmap_reg_range(0x6b00, 0x6b01),
1072 	regmap_reg_range(0x6b04, 0x6b04),
1073 };
1074 
1075 static const struct regmap_access_table ksz9896_register_set = {
1076 	.yes_ranges = ksz9896_valid_regs,
1077 	.n_yes_ranges = ARRAY_SIZE(ksz9896_valid_regs),
1078 };
1079 
1080 const struct ksz_chip_data ksz_switch_chips[] = {
1081 	[KSZ8563] = {
1082 		.chip_id = KSZ8563_CHIP_ID,
1083 		.dev_name = "KSZ8563",
1084 		.num_vlans = 4096,
1085 		.num_alus = 4096,
1086 		.num_statics = 16,
1087 		.cpu_ports = 0x07,	/* can be configured as cpu port */
1088 		.port_cnt = 3,		/* total port count */
1089 		.port_nirqs = 3,
1090 		.num_tx_queues = 4,
1091 		.tc_cbs_supported = true,
1092 		.ops = &ksz9477_dev_ops,
1093 		.mib_names = ksz9477_mib_names,
1094 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1095 		.reg_mib_cnt = MIB_COUNTER_NUM,
1096 		.regs = ksz9477_regs,
1097 		.masks = ksz9477_masks,
1098 		.shifts = ksz9477_shifts,
1099 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1100 		.xmii_ctrl1 = ksz8795_xmii_ctrl1, /* Same as ksz8795 */
1101 		.supports_mii = {false, false, true},
1102 		.supports_rmii = {false, false, true},
1103 		.supports_rgmii = {false, false, true},
1104 		.internal_phy = {true, true, false},
1105 		.gbit_capable = {false, false, true},
1106 		.wr_table = &ksz8563_register_set,
1107 		.rd_table = &ksz8563_register_set,
1108 	},
1109 
1110 	[KSZ8795] = {
1111 		.chip_id = KSZ8795_CHIP_ID,
1112 		.dev_name = "KSZ8795",
1113 		.num_vlans = 4096,
1114 		.num_alus = 0,
1115 		.num_statics = 8,
1116 		.cpu_ports = 0x10,	/* can be configured as cpu port */
1117 		.port_cnt = 5,		/* total cpu and user ports */
1118 		.num_tx_queues = 4,
1119 		.ops = &ksz8_dev_ops,
1120 		.ksz87xx_eee_link_erratum = true,
1121 		.mib_names = ksz9477_mib_names,
1122 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1123 		.reg_mib_cnt = MIB_COUNTER_NUM,
1124 		.regs = ksz8795_regs,
1125 		.masks = ksz8795_masks,
1126 		.shifts = ksz8795_shifts,
1127 		.xmii_ctrl0 = ksz8795_xmii_ctrl0,
1128 		.xmii_ctrl1 = ksz8795_xmii_ctrl1,
1129 		.supports_mii = {false, false, false, false, true},
1130 		.supports_rmii = {false, false, false, false, true},
1131 		.supports_rgmii = {false, false, false, false, true},
1132 		.internal_phy = {true, true, true, true, false},
1133 	},
1134 
1135 	[KSZ8794] = {
1136 		/* WARNING
1137 		 * =======
1138 		 * KSZ8794 is similar to KSZ8795, except the port map
1139 		 * contains a gap between external and CPU ports, the
1140 		 * port map is NOT continuous. The per-port register
1141 		 * map is shifted accordingly too, i.e. registers at
1142 		 * offset 0x40 are NOT used on KSZ8794 and they ARE
1143 		 * used on KSZ8795 for external port 3.
1144 		 *           external  cpu
1145 		 * KSZ8794   0,1,2      4
1146 		 * KSZ8795   0,1,2,3    4
1147 		 * KSZ8765   0,1,2,3    4
1148 		 * port_cnt is configured as 5, even though it is 4
1149 		 */
1150 		.chip_id = KSZ8794_CHIP_ID,
1151 		.dev_name = "KSZ8794",
1152 		.num_vlans = 4096,
1153 		.num_alus = 0,
1154 		.num_statics = 8,
1155 		.cpu_ports = 0x10,	/* can be configured as cpu port */
1156 		.port_cnt = 5,		/* total cpu and user ports */
1157 		.num_tx_queues = 4,
1158 		.ops = &ksz8_dev_ops,
1159 		.ksz87xx_eee_link_erratum = true,
1160 		.mib_names = ksz9477_mib_names,
1161 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1162 		.reg_mib_cnt = MIB_COUNTER_NUM,
1163 		.regs = ksz8795_regs,
1164 		.masks = ksz8795_masks,
1165 		.shifts = ksz8795_shifts,
1166 		.xmii_ctrl0 = ksz8795_xmii_ctrl0,
1167 		.xmii_ctrl1 = ksz8795_xmii_ctrl1,
1168 		.supports_mii = {false, false, false, false, true},
1169 		.supports_rmii = {false, false, false, false, true},
1170 		.supports_rgmii = {false, false, false, false, true},
1171 		.internal_phy = {true, true, true, false, false},
1172 	},
1173 
1174 	[KSZ8765] = {
1175 		.chip_id = KSZ8765_CHIP_ID,
1176 		.dev_name = "KSZ8765",
1177 		.num_vlans = 4096,
1178 		.num_alus = 0,
1179 		.num_statics = 8,
1180 		.cpu_ports = 0x10,	/* can be configured as cpu port */
1181 		.port_cnt = 5,		/* total cpu and user ports */
1182 		.num_tx_queues = 4,
1183 		.ops = &ksz8_dev_ops,
1184 		.ksz87xx_eee_link_erratum = true,
1185 		.mib_names = ksz9477_mib_names,
1186 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1187 		.reg_mib_cnt = MIB_COUNTER_NUM,
1188 		.regs = ksz8795_regs,
1189 		.masks = ksz8795_masks,
1190 		.shifts = ksz8795_shifts,
1191 		.xmii_ctrl0 = ksz8795_xmii_ctrl0,
1192 		.xmii_ctrl1 = ksz8795_xmii_ctrl1,
1193 		.supports_mii = {false, false, false, false, true},
1194 		.supports_rmii = {false, false, false, false, true},
1195 		.supports_rgmii = {false, false, false, false, true},
1196 		.internal_phy = {true, true, true, true, false},
1197 	},
1198 
1199 	[KSZ8830] = {
1200 		.chip_id = KSZ8830_CHIP_ID,
1201 		.dev_name = "KSZ8863/KSZ8873",
1202 		.num_vlans = 16,
1203 		.num_alus = 0,
1204 		.num_statics = 8,
1205 		.cpu_ports = 0x4,	/* can be configured as cpu port */
1206 		.port_cnt = 3,
1207 		.num_tx_queues = 4,
1208 		.ops = &ksz8_dev_ops,
1209 		.mib_names = ksz88xx_mib_names,
1210 		.mib_cnt = ARRAY_SIZE(ksz88xx_mib_names),
1211 		.reg_mib_cnt = MIB_COUNTER_NUM,
1212 		.regs = ksz8863_regs,
1213 		.masks = ksz8863_masks,
1214 		.shifts = ksz8863_shifts,
1215 		.supports_mii = {false, false, true},
1216 		.supports_rmii = {false, false, true},
1217 		.internal_phy = {true, true, false},
1218 	},
1219 
1220 	[KSZ9477] = {
1221 		.chip_id = KSZ9477_CHIP_ID,
1222 		.dev_name = "KSZ9477",
1223 		.num_vlans = 4096,
1224 		.num_alus = 4096,
1225 		.num_statics = 16,
1226 		.cpu_ports = 0x7F,	/* can be configured as cpu port */
1227 		.port_cnt = 7,		/* total physical port count */
1228 		.port_nirqs = 4,
1229 		.num_tx_queues = 4,
1230 		.tc_cbs_supported = true,
1231 		.ops = &ksz9477_dev_ops,
1232 		.phy_errata_9477 = true,
1233 		.mib_names = ksz9477_mib_names,
1234 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1235 		.reg_mib_cnt = MIB_COUNTER_NUM,
1236 		.regs = ksz9477_regs,
1237 		.masks = ksz9477_masks,
1238 		.shifts = ksz9477_shifts,
1239 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1240 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1241 		.supports_mii	= {false, false, false, false,
1242 				   false, true, false},
1243 		.supports_rmii	= {false, false, false, false,
1244 				   false, true, false},
1245 		.supports_rgmii = {false, false, false, false,
1246 				   false, true, false},
1247 		.internal_phy	= {true, true, true, true,
1248 				   true, false, false},
1249 		.gbit_capable	= {true, true, true, true, true, true, true},
1250 		.wr_table = &ksz9477_register_set,
1251 		.rd_table = &ksz9477_register_set,
1252 	},
1253 
1254 	[KSZ9896] = {
1255 		.chip_id = KSZ9896_CHIP_ID,
1256 		.dev_name = "KSZ9896",
1257 		.num_vlans = 4096,
1258 		.num_alus = 4096,
1259 		.num_statics = 16,
1260 		.cpu_ports = 0x3F,	/* can be configured as cpu port */
1261 		.port_cnt = 6,		/* total physical port count */
1262 		.port_nirqs = 2,
1263 		.num_tx_queues = 4,
1264 		.ops = &ksz9477_dev_ops,
1265 		.phy_errata_9477 = true,
1266 		.mib_names = ksz9477_mib_names,
1267 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1268 		.reg_mib_cnt = MIB_COUNTER_NUM,
1269 		.regs = ksz9477_regs,
1270 		.masks = ksz9477_masks,
1271 		.shifts = ksz9477_shifts,
1272 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1273 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1274 		.supports_mii	= {false, false, false, false,
1275 				   false, true},
1276 		.supports_rmii	= {false, false, false, false,
1277 				   false, true},
1278 		.supports_rgmii = {false, false, false, false,
1279 				   false, true},
1280 		.internal_phy	= {true, true, true, true,
1281 				   true, false},
1282 		.gbit_capable	= {true, true, true, true, true, true},
1283 		.wr_table = &ksz9896_register_set,
1284 		.rd_table = &ksz9896_register_set,
1285 	},
1286 
1287 	[KSZ9897] = {
1288 		.chip_id = KSZ9897_CHIP_ID,
1289 		.dev_name = "KSZ9897",
1290 		.num_vlans = 4096,
1291 		.num_alus = 4096,
1292 		.num_statics = 16,
1293 		.cpu_ports = 0x7F,	/* can be configured as cpu port */
1294 		.port_cnt = 7,		/* total physical port count */
1295 		.port_nirqs = 2,
1296 		.num_tx_queues = 4,
1297 		.ops = &ksz9477_dev_ops,
1298 		.phy_errata_9477 = true,
1299 		.mib_names = ksz9477_mib_names,
1300 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1301 		.reg_mib_cnt = MIB_COUNTER_NUM,
1302 		.regs = ksz9477_regs,
1303 		.masks = ksz9477_masks,
1304 		.shifts = ksz9477_shifts,
1305 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1306 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1307 		.supports_mii	= {false, false, false, false,
1308 				   false, true, true},
1309 		.supports_rmii	= {false, false, false, false,
1310 				   false, true, true},
1311 		.supports_rgmii = {false, false, false, false,
1312 				   false, true, true},
1313 		.internal_phy	= {true, true, true, true,
1314 				   true, false, false},
1315 		.gbit_capable	= {true, true, true, true, true, true, true},
1316 	},
1317 
1318 	[KSZ9893] = {
1319 		.chip_id = KSZ9893_CHIP_ID,
1320 		.dev_name = "KSZ9893",
1321 		.num_vlans = 4096,
1322 		.num_alus = 4096,
1323 		.num_statics = 16,
1324 		.cpu_ports = 0x07,	/* can be configured as cpu port */
1325 		.port_cnt = 3,		/* total port count */
1326 		.port_nirqs = 2,
1327 		.num_tx_queues = 4,
1328 		.ops = &ksz9477_dev_ops,
1329 		.mib_names = ksz9477_mib_names,
1330 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1331 		.reg_mib_cnt = MIB_COUNTER_NUM,
1332 		.regs = ksz9477_regs,
1333 		.masks = ksz9477_masks,
1334 		.shifts = ksz9477_shifts,
1335 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1336 		.xmii_ctrl1 = ksz8795_xmii_ctrl1, /* Same as ksz8795 */
1337 		.supports_mii = {false, false, true},
1338 		.supports_rmii = {false, false, true},
1339 		.supports_rgmii = {false, false, true},
1340 		.internal_phy = {true, true, false},
1341 		.gbit_capable = {true, true, true},
1342 	},
1343 
1344 	[KSZ9563] = {
1345 		.chip_id = KSZ9563_CHIP_ID,
1346 		.dev_name = "KSZ9563",
1347 		.num_vlans = 4096,
1348 		.num_alus = 4096,
1349 		.num_statics = 16,
1350 		.cpu_ports = 0x07,	/* can be configured as cpu port */
1351 		.port_cnt = 3,		/* total port count */
1352 		.port_nirqs = 3,
1353 		.num_tx_queues = 4,
1354 		.tc_cbs_supported = true,
1355 		.ops = &ksz9477_dev_ops,
1356 		.mib_names = ksz9477_mib_names,
1357 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1358 		.reg_mib_cnt = MIB_COUNTER_NUM,
1359 		.regs = ksz9477_regs,
1360 		.masks = ksz9477_masks,
1361 		.shifts = ksz9477_shifts,
1362 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1363 		.xmii_ctrl1 = ksz8795_xmii_ctrl1, /* Same as ksz8795 */
1364 		.supports_mii = {false, false, true},
1365 		.supports_rmii = {false, false, true},
1366 		.supports_rgmii = {false, false, true},
1367 		.internal_phy = {true, true, false},
1368 		.gbit_capable = {true, true, true},
1369 	},
1370 
1371 	[KSZ9567] = {
1372 		.chip_id = KSZ9567_CHIP_ID,
1373 		.dev_name = "KSZ9567",
1374 		.num_vlans = 4096,
1375 		.num_alus = 4096,
1376 		.num_statics = 16,
1377 		.cpu_ports = 0x7F,	/* can be configured as cpu port */
1378 		.port_cnt = 7,		/* total physical port count */
1379 		.port_nirqs = 3,
1380 		.num_tx_queues = 4,
1381 		.tc_cbs_supported = true,
1382 		.ops = &ksz9477_dev_ops,
1383 		.phy_errata_9477 = true,
1384 		.mib_names = ksz9477_mib_names,
1385 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1386 		.reg_mib_cnt = MIB_COUNTER_NUM,
1387 		.regs = ksz9477_regs,
1388 		.masks = ksz9477_masks,
1389 		.shifts = ksz9477_shifts,
1390 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1391 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1392 		.supports_mii	= {false, false, false, false,
1393 				   false, true, true},
1394 		.supports_rmii	= {false, false, false, false,
1395 				   false, true, true},
1396 		.supports_rgmii = {false, false, false, false,
1397 				   false, true, true},
1398 		.internal_phy	= {true, true, true, true,
1399 				   true, false, false},
1400 		.gbit_capable	= {true, true, true, true, true, true, true},
1401 	},
1402 
1403 	[LAN9370] = {
1404 		.chip_id = LAN9370_CHIP_ID,
1405 		.dev_name = "LAN9370",
1406 		.num_vlans = 4096,
1407 		.num_alus = 1024,
1408 		.num_statics = 256,
1409 		.cpu_ports = 0x10,	/* can be configured as cpu port */
1410 		.port_cnt = 5,		/* total physical port count */
1411 		.port_nirqs = 6,
1412 		.num_tx_queues = 8,
1413 		.tc_cbs_supported = true,
1414 		.ops = &lan937x_dev_ops,
1415 		.mib_names = ksz9477_mib_names,
1416 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1417 		.reg_mib_cnt = MIB_COUNTER_NUM,
1418 		.regs = ksz9477_regs,
1419 		.masks = lan937x_masks,
1420 		.shifts = lan937x_shifts,
1421 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1422 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1423 		.supports_mii = {false, false, false, false, true},
1424 		.supports_rmii = {false, false, false, false, true},
1425 		.supports_rgmii = {false, false, false, false, true},
1426 		.internal_phy = {true, true, true, true, false},
1427 	},
1428 
1429 	[LAN9371] = {
1430 		.chip_id = LAN9371_CHIP_ID,
1431 		.dev_name = "LAN9371",
1432 		.num_vlans = 4096,
1433 		.num_alus = 1024,
1434 		.num_statics = 256,
1435 		.cpu_ports = 0x30,	/* can be configured as cpu port */
1436 		.port_cnt = 6,		/* total physical port count */
1437 		.port_nirqs = 6,
1438 		.num_tx_queues = 8,
1439 		.tc_cbs_supported = true,
1440 		.ops = &lan937x_dev_ops,
1441 		.mib_names = ksz9477_mib_names,
1442 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1443 		.reg_mib_cnt = MIB_COUNTER_NUM,
1444 		.regs = ksz9477_regs,
1445 		.masks = lan937x_masks,
1446 		.shifts = lan937x_shifts,
1447 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1448 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1449 		.supports_mii = {false, false, false, false, true, true},
1450 		.supports_rmii = {false, false, false, false, true, true},
1451 		.supports_rgmii = {false, false, false, false, true, true},
1452 		.internal_phy = {true, true, true, true, false, false},
1453 	},
1454 
1455 	[LAN9372] = {
1456 		.chip_id = LAN9372_CHIP_ID,
1457 		.dev_name = "LAN9372",
1458 		.num_vlans = 4096,
1459 		.num_alus = 1024,
1460 		.num_statics = 256,
1461 		.cpu_ports = 0x30,	/* can be configured as cpu port */
1462 		.port_cnt = 8,		/* total physical port count */
1463 		.port_nirqs = 6,
1464 		.num_tx_queues = 8,
1465 		.tc_cbs_supported = true,
1466 		.ops = &lan937x_dev_ops,
1467 		.mib_names = ksz9477_mib_names,
1468 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1469 		.reg_mib_cnt = MIB_COUNTER_NUM,
1470 		.regs = ksz9477_regs,
1471 		.masks = lan937x_masks,
1472 		.shifts = lan937x_shifts,
1473 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1474 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1475 		.supports_mii	= {false, false, false, false,
1476 				   true, true, false, false},
1477 		.supports_rmii	= {false, false, false, false,
1478 				   true, true, false, false},
1479 		.supports_rgmii = {false, false, false, false,
1480 				   true, true, false, false},
1481 		.internal_phy	= {true, true, true, true,
1482 				   false, false, true, true},
1483 	},
1484 
1485 	[LAN9373] = {
1486 		.chip_id = LAN9373_CHIP_ID,
1487 		.dev_name = "LAN9373",
1488 		.num_vlans = 4096,
1489 		.num_alus = 1024,
1490 		.num_statics = 256,
1491 		.cpu_ports = 0x38,	/* can be configured as cpu port */
1492 		.port_cnt = 5,		/* total physical port count */
1493 		.port_nirqs = 6,
1494 		.num_tx_queues = 8,
1495 		.tc_cbs_supported = true,
1496 		.ops = &lan937x_dev_ops,
1497 		.mib_names = ksz9477_mib_names,
1498 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1499 		.reg_mib_cnt = MIB_COUNTER_NUM,
1500 		.regs = ksz9477_regs,
1501 		.masks = lan937x_masks,
1502 		.shifts = lan937x_shifts,
1503 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1504 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1505 		.supports_mii	= {false, false, false, false,
1506 				   true, true, false, false},
1507 		.supports_rmii	= {false, false, false, false,
1508 				   true, true, false, false},
1509 		.supports_rgmii = {false, false, false, false,
1510 				   true, true, false, false},
1511 		.internal_phy	= {true, true, true, false,
1512 				   false, false, true, true},
1513 	},
1514 
1515 	[LAN9374] = {
1516 		.chip_id = LAN9374_CHIP_ID,
1517 		.dev_name = "LAN9374",
1518 		.num_vlans = 4096,
1519 		.num_alus = 1024,
1520 		.num_statics = 256,
1521 		.cpu_ports = 0x30,	/* can be configured as cpu port */
1522 		.port_cnt = 8,		/* total physical port count */
1523 		.port_nirqs = 6,
1524 		.num_tx_queues = 8,
1525 		.tc_cbs_supported = true,
1526 		.ops = &lan937x_dev_ops,
1527 		.mib_names = ksz9477_mib_names,
1528 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1529 		.reg_mib_cnt = MIB_COUNTER_NUM,
1530 		.regs = ksz9477_regs,
1531 		.masks = lan937x_masks,
1532 		.shifts = lan937x_shifts,
1533 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1534 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1535 		.supports_mii	= {false, false, false, false,
1536 				   true, true, false, false},
1537 		.supports_rmii	= {false, false, false, false,
1538 				   true, true, false, false},
1539 		.supports_rgmii = {false, false, false, false,
1540 				   true, true, false, false},
1541 		.internal_phy	= {true, true, true, true,
1542 				   false, false, true, true},
1543 	},
1544 };
1545 EXPORT_SYMBOL_GPL(ksz_switch_chips);
1546 
1547 static const struct ksz_chip_data *ksz_lookup_info(unsigned int prod_num)
1548 {
1549 	int i;
1550 
1551 	for (i = 0; i < ARRAY_SIZE(ksz_switch_chips); i++) {
1552 		const struct ksz_chip_data *chip = &ksz_switch_chips[i];
1553 
1554 		if (chip->chip_id == prod_num)
1555 			return chip;
1556 	}
1557 
1558 	return NULL;
1559 }
1560 
1561 static int ksz_check_device_id(struct ksz_device *dev)
1562 {
1563 	const struct ksz_chip_data *dt_chip_data;
1564 
1565 	dt_chip_data = of_device_get_match_data(dev->dev);
1566 
1567 	/* Check for Device Tree and Chip ID */
1568 	if (dt_chip_data->chip_id != dev->chip_id) {
1569 		dev_err(dev->dev,
1570 			"Device tree specifies chip %s but found %s, please fix it!\n",
1571 			dt_chip_data->dev_name, dev->info->dev_name);
1572 		return -ENODEV;
1573 	}
1574 
1575 	return 0;
1576 }
1577 
1578 static void ksz_phylink_get_caps(struct dsa_switch *ds, int port,
1579 				 struct phylink_config *config)
1580 {
1581 	struct ksz_device *dev = ds->priv;
1582 
1583 	config->legacy_pre_march2020 = false;
1584 
1585 	if (dev->info->supports_mii[port])
1586 		__set_bit(PHY_INTERFACE_MODE_MII, config->supported_interfaces);
1587 
1588 	if (dev->info->supports_rmii[port])
1589 		__set_bit(PHY_INTERFACE_MODE_RMII,
1590 			  config->supported_interfaces);
1591 
1592 	if (dev->info->supports_rgmii[port])
1593 		phy_interface_set_rgmii(config->supported_interfaces);
1594 
1595 	if (dev->info->internal_phy[port]) {
1596 		__set_bit(PHY_INTERFACE_MODE_INTERNAL,
1597 			  config->supported_interfaces);
1598 		/* Compatibility for phylib's default interface type when the
1599 		 * phy-mode property is absent
1600 		 */
1601 		__set_bit(PHY_INTERFACE_MODE_GMII,
1602 			  config->supported_interfaces);
1603 	}
1604 
1605 	if (dev->dev_ops->get_caps)
1606 		dev->dev_ops->get_caps(dev, port, config);
1607 }
1608 
1609 void ksz_r_mib_stats64(struct ksz_device *dev, int port)
1610 {
1611 	struct ethtool_pause_stats *pstats;
1612 	struct rtnl_link_stats64 *stats;
1613 	struct ksz_stats_raw *raw;
1614 	struct ksz_port_mib *mib;
1615 
1616 	mib = &dev->ports[port].mib;
1617 	stats = &mib->stats64;
1618 	pstats = &mib->pause_stats;
1619 	raw = (struct ksz_stats_raw *)mib->counters;
1620 
1621 	spin_lock(&mib->stats64_lock);
1622 
1623 	stats->rx_packets = raw->rx_bcast + raw->rx_mcast + raw->rx_ucast +
1624 		raw->rx_pause;
1625 	stats->tx_packets = raw->tx_bcast + raw->tx_mcast + raw->tx_ucast +
1626 		raw->tx_pause;
1627 
1628 	/* HW counters are counting bytes + FCS which is not acceptable
1629 	 * for rtnl_link_stats64 interface
1630 	 */
1631 	stats->rx_bytes = raw->rx_total - stats->rx_packets * ETH_FCS_LEN;
1632 	stats->tx_bytes = raw->tx_total - stats->tx_packets * ETH_FCS_LEN;
1633 
1634 	stats->rx_length_errors = raw->rx_undersize + raw->rx_fragments +
1635 		raw->rx_oversize;
1636 
1637 	stats->rx_crc_errors = raw->rx_crc_err;
1638 	stats->rx_frame_errors = raw->rx_align_err;
1639 	stats->rx_dropped = raw->rx_discards;
1640 	stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
1641 		stats->rx_frame_errors  + stats->rx_dropped;
1642 
1643 	stats->tx_window_errors = raw->tx_late_col;
1644 	stats->tx_fifo_errors = raw->tx_discards;
1645 	stats->tx_aborted_errors = raw->tx_exc_col;
1646 	stats->tx_errors = stats->tx_window_errors + stats->tx_fifo_errors +
1647 		stats->tx_aborted_errors;
1648 
1649 	stats->multicast = raw->rx_mcast;
1650 	stats->collisions = raw->tx_total_col;
1651 
1652 	pstats->tx_pause_frames = raw->tx_pause;
1653 	pstats->rx_pause_frames = raw->rx_pause;
1654 
1655 	spin_unlock(&mib->stats64_lock);
1656 }
1657 
1658 void ksz88xx_r_mib_stats64(struct ksz_device *dev, int port)
1659 {
1660 	struct ethtool_pause_stats *pstats;
1661 	struct rtnl_link_stats64 *stats;
1662 	struct ksz88xx_stats_raw *raw;
1663 	struct ksz_port_mib *mib;
1664 
1665 	mib = &dev->ports[port].mib;
1666 	stats = &mib->stats64;
1667 	pstats = &mib->pause_stats;
1668 	raw = (struct ksz88xx_stats_raw *)mib->counters;
1669 
1670 	spin_lock(&mib->stats64_lock);
1671 
1672 	stats->rx_packets = raw->rx_bcast + raw->rx_mcast + raw->rx_ucast +
1673 		raw->rx_pause;
1674 	stats->tx_packets = raw->tx_bcast + raw->tx_mcast + raw->tx_ucast +
1675 		raw->tx_pause;
1676 
1677 	/* HW counters are counting bytes + FCS which is not acceptable
1678 	 * for rtnl_link_stats64 interface
1679 	 */
1680 	stats->rx_bytes = raw->rx + raw->rx_hi - stats->rx_packets * ETH_FCS_LEN;
1681 	stats->tx_bytes = raw->tx + raw->tx_hi - stats->tx_packets * ETH_FCS_LEN;
1682 
1683 	stats->rx_length_errors = raw->rx_undersize + raw->rx_fragments +
1684 		raw->rx_oversize;
1685 
1686 	stats->rx_crc_errors = raw->rx_crc_err;
1687 	stats->rx_frame_errors = raw->rx_align_err;
1688 	stats->rx_dropped = raw->rx_discards;
1689 	stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
1690 		stats->rx_frame_errors  + stats->rx_dropped;
1691 
1692 	stats->tx_window_errors = raw->tx_late_col;
1693 	stats->tx_fifo_errors = raw->tx_discards;
1694 	stats->tx_aborted_errors = raw->tx_exc_col;
1695 	stats->tx_errors = stats->tx_window_errors + stats->tx_fifo_errors +
1696 		stats->tx_aborted_errors;
1697 
1698 	stats->multicast = raw->rx_mcast;
1699 	stats->collisions = raw->tx_total_col;
1700 
1701 	pstats->tx_pause_frames = raw->tx_pause;
1702 	pstats->rx_pause_frames = raw->rx_pause;
1703 
1704 	spin_unlock(&mib->stats64_lock);
1705 }
1706 
1707 static void ksz_get_stats64(struct dsa_switch *ds, int port,
1708 			    struct rtnl_link_stats64 *s)
1709 {
1710 	struct ksz_device *dev = ds->priv;
1711 	struct ksz_port_mib *mib;
1712 
1713 	mib = &dev->ports[port].mib;
1714 
1715 	spin_lock(&mib->stats64_lock);
1716 	memcpy(s, &mib->stats64, sizeof(*s));
1717 	spin_unlock(&mib->stats64_lock);
1718 }
1719 
1720 static void ksz_get_pause_stats(struct dsa_switch *ds, int port,
1721 				struct ethtool_pause_stats *pause_stats)
1722 {
1723 	struct ksz_device *dev = ds->priv;
1724 	struct ksz_port_mib *mib;
1725 
1726 	mib = &dev->ports[port].mib;
1727 
1728 	spin_lock(&mib->stats64_lock);
1729 	memcpy(pause_stats, &mib->pause_stats, sizeof(*pause_stats));
1730 	spin_unlock(&mib->stats64_lock);
1731 }
1732 
1733 static void ksz_get_strings(struct dsa_switch *ds, int port,
1734 			    u32 stringset, uint8_t *buf)
1735 {
1736 	struct ksz_device *dev = ds->priv;
1737 	int i;
1738 
1739 	if (stringset != ETH_SS_STATS)
1740 		return;
1741 
1742 	for (i = 0; i < dev->info->mib_cnt; i++) {
1743 		memcpy(buf + i * ETH_GSTRING_LEN,
1744 		       dev->info->mib_names[i].string, ETH_GSTRING_LEN);
1745 	}
1746 }
1747 
1748 static void ksz_update_port_member(struct ksz_device *dev, int port)
1749 {
1750 	struct ksz_port *p = &dev->ports[port];
1751 	struct dsa_switch *ds = dev->ds;
1752 	u8 port_member = 0, cpu_port;
1753 	const struct dsa_port *dp;
1754 	int i, j;
1755 
1756 	if (!dsa_is_user_port(ds, port))
1757 		return;
1758 
1759 	dp = dsa_to_port(ds, port);
1760 	cpu_port = BIT(dsa_upstream_port(ds, port));
1761 
1762 	for (i = 0; i < ds->num_ports; i++) {
1763 		const struct dsa_port *other_dp = dsa_to_port(ds, i);
1764 		struct ksz_port *other_p = &dev->ports[i];
1765 		u8 val = 0;
1766 
1767 		if (!dsa_is_user_port(ds, i))
1768 			continue;
1769 		if (port == i)
1770 			continue;
1771 		if (!dsa_port_bridge_same(dp, other_dp))
1772 			continue;
1773 		if (other_p->stp_state != BR_STATE_FORWARDING)
1774 			continue;
1775 
1776 		if (p->stp_state == BR_STATE_FORWARDING) {
1777 			val |= BIT(port);
1778 			port_member |= BIT(i);
1779 		}
1780 
1781 		/* Retain port [i]'s relationship to other ports than [port] */
1782 		for (j = 0; j < ds->num_ports; j++) {
1783 			const struct dsa_port *third_dp;
1784 			struct ksz_port *third_p;
1785 
1786 			if (j == i)
1787 				continue;
1788 			if (j == port)
1789 				continue;
1790 			if (!dsa_is_user_port(ds, j))
1791 				continue;
1792 			third_p = &dev->ports[j];
1793 			if (third_p->stp_state != BR_STATE_FORWARDING)
1794 				continue;
1795 			third_dp = dsa_to_port(ds, j);
1796 			if (dsa_port_bridge_same(other_dp, third_dp))
1797 				val |= BIT(j);
1798 		}
1799 
1800 		dev->dev_ops->cfg_port_member(dev, i, val | cpu_port);
1801 	}
1802 
1803 	dev->dev_ops->cfg_port_member(dev, port, port_member | cpu_port);
1804 }
1805 
1806 static int ksz_sw_mdio_read(struct mii_bus *bus, int addr, int regnum)
1807 {
1808 	struct ksz_device *dev = bus->priv;
1809 	u16 val;
1810 	int ret;
1811 
1812 	ret = dev->dev_ops->r_phy(dev, addr, regnum, &val);
1813 	if (ret < 0)
1814 		return ret;
1815 
1816 	return val;
1817 }
1818 
1819 static int ksz_sw_mdio_write(struct mii_bus *bus, int addr, int regnum,
1820 			     u16 val)
1821 {
1822 	struct ksz_device *dev = bus->priv;
1823 
1824 	return dev->dev_ops->w_phy(dev, addr, regnum, val);
1825 }
1826 
1827 static int ksz_irq_phy_setup(struct ksz_device *dev)
1828 {
1829 	struct dsa_switch *ds = dev->ds;
1830 	int phy;
1831 	int irq;
1832 	int ret;
1833 
1834 	for (phy = 0; phy < KSZ_MAX_NUM_PORTS; phy++) {
1835 		if (BIT(phy) & ds->phys_mii_mask) {
1836 			irq = irq_find_mapping(dev->ports[phy].pirq.domain,
1837 					       PORT_SRC_PHY_INT);
1838 			if (irq < 0) {
1839 				ret = irq;
1840 				goto out;
1841 			}
1842 			ds->slave_mii_bus->irq[phy] = irq;
1843 		}
1844 	}
1845 	return 0;
1846 out:
1847 	while (phy--)
1848 		if (BIT(phy) & ds->phys_mii_mask)
1849 			irq_dispose_mapping(ds->slave_mii_bus->irq[phy]);
1850 
1851 	return ret;
1852 }
1853 
1854 static void ksz_irq_phy_free(struct ksz_device *dev)
1855 {
1856 	struct dsa_switch *ds = dev->ds;
1857 	int phy;
1858 
1859 	for (phy = 0; phy < KSZ_MAX_NUM_PORTS; phy++)
1860 		if (BIT(phy) & ds->phys_mii_mask)
1861 			irq_dispose_mapping(ds->slave_mii_bus->irq[phy]);
1862 }
1863 
1864 static int ksz_mdio_register(struct ksz_device *dev)
1865 {
1866 	struct dsa_switch *ds = dev->ds;
1867 	struct device_node *mdio_np;
1868 	struct mii_bus *bus;
1869 	int ret;
1870 
1871 	mdio_np = of_get_child_by_name(dev->dev->of_node, "mdio");
1872 	if (!mdio_np)
1873 		return 0;
1874 
1875 	bus = devm_mdiobus_alloc(ds->dev);
1876 	if (!bus) {
1877 		of_node_put(mdio_np);
1878 		return -ENOMEM;
1879 	}
1880 
1881 	bus->priv = dev;
1882 	bus->read = ksz_sw_mdio_read;
1883 	bus->write = ksz_sw_mdio_write;
1884 	bus->name = "ksz slave smi";
1885 	snprintf(bus->id, MII_BUS_ID_SIZE, "SMI-%d", ds->index);
1886 	bus->parent = ds->dev;
1887 	bus->phy_mask = ~ds->phys_mii_mask;
1888 
1889 	ds->slave_mii_bus = bus;
1890 
1891 	if (dev->irq > 0) {
1892 		ret = ksz_irq_phy_setup(dev);
1893 		if (ret) {
1894 			of_node_put(mdio_np);
1895 			return ret;
1896 		}
1897 	}
1898 
1899 	ret = devm_of_mdiobus_register(ds->dev, bus, mdio_np);
1900 	if (ret) {
1901 		dev_err(ds->dev, "unable to register MDIO bus %s\n",
1902 			bus->id);
1903 		if (dev->irq > 0)
1904 			ksz_irq_phy_free(dev);
1905 	}
1906 
1907 	of_node_put(mdio_np);
1908 
1909 	return ret;
1910 }
1911 
1912 static void ksz_irq_mask(struct irq_data *d)
1913 {
1914 	struct ksz_irq *kirq = irq_data_get_irq_chip_data(d);
1915 
1916 	kirq->masked |= BIT(d->hwirq);
1917 }
1918 
1919 static void ksz_irq_unmask(struct irq_data *d)
1920 {
1921 	struct ksz_irq *kirq = irq_data_get_irq_chip_data(d);
1922 
1923 	kirq->masked &= ~BIT(d->hwirq);
1924 }
1925 
1926 static void ksz_irq_bus_lock(struct irq_data *d)
1927 {
1928 	struct ksz_irq *kirq  = irq_data_get_irq_chip_data(d);
1929 
1930 	mutex_lock(&kirq->dev->lock_irq);
1931 }
1932 
1933 static void ksz_irq_bus_sync_unlock(struct irq_data *d)
1934 {
1935 	struct ksz_irq *kirq  = irq_data_get_irq_chip_data(d);
1936 	struct ksz_device *dev = kirq->dev;
1937 	int ret;
1938 
1939 	ret = ksz_write32(dev, kirq->reg_mask, kirq->masked);
1940 	if (ret)
1941 		dev_err(dev->dev, "failed to change IRQ mask\n");
1942 
1943 	mutex_unlock(&dev->lock_irq);
1944 }
1945 
1946 static const struct irq_chip ksz_irq_chip = {
1947 	.name			= "ksz-irq",
1948 	.irq_mask		= ksz_irq_mask,
1949 	.irq_unmask		= ksz_irq_unmask,
1950 	.irq_bus_lock		= ksz_irq_bus_lock,
1951 	.irq_bus_sync_unlock	= ksz_irq_bus_sync_unlock,
1952 };
1953 
1954 static int ksz_irq_domain_map(struct irq_domain *d,
1955 			      unsigned int irq, irq_hw_number_t hwirq)
1956 {
1957 	irq_set_chip_data(irq, d->host_data);
1958 	irq_set_chip_and_handler(irq, &ksz_irq_chip, handle_level_irq);
1959 	irq_set_noprobe(irq);
1960 
1961 	return 0;
1962 }
1963 
1964 static const struct irq_domain_ops ksz_irq_domain_ops = {
1965 	.map	= ksz_irq_domain_map,
1966 	.xlate	= irq_domain_xlate_twocell,
1967 };
1968 
1969 static void ksz_irq_free(struct ksz_irq *kirq)
1970 {
1971 	int irq, virq;
1972 
1973 	free_irq(kirq->irq_num, kirq);
1974 
1975 	for (irq = 0; irq < kirq->nirqs; irq++) {
1976 		virq = irq_find_mapping(kirq->domain, irq);
1977 		irq_dispose_mapping(virq);
1978 	}
1979 
1980 	irq_domain_remove(kirq->domain);
1981 }
1982 
1983 static irqreturn_t ksz_irq_thread_fn(int irq, void *dev_id)
1984 {
1985 	struct ksz_irq *kirq = dev_id;
1986 	unsigned int nhandled = 0;
1987 	struct ksz_device *dev;
1988 	unsigned int sub_irq;
1989 	u8 data;
1990 	int ret;
1991 	u8 n;
1992 
1993 	dev = kirq->dev;
1994 
1995 	/* Read interrupt status register */
1996 	ret = ksz_read8(dev, kirq->reg_status, &data);
1997 	if (ret)
1998 		goto out;
1999 
2000 	for (n = 0; n < kirq->nirqs; ++n) {
2001 		if (data & BIT(n)) {
2002 			sub_irq = irq_find_mapping(kirq->domain, n);
2003 			handle_nested_irq(sub_irq);
2004 			++nhandled;
2005 		}
2006 	}
2007 out:
2008 	return (nhandled > 0 ? IRQ_HANDLED : IRQ_NONE);
2009 }
2010 
2011 static int ksz_irq_common_setup(struct ksz_device *dev, struct ksz_irq *kirq)
2012 {
2013 	int ret, n;
2014 
2015 	kirq->dev = dev;
2016 	kirq->masked = ~0;
2017 
2018 	kirq->domain = irq_domain_add_simple(dev->dev->of_node, kirq->nirqs, 0,
2019 					     &ksz_irq_domain_ops, kirq);
2020 	if (!kirq->domain)
2021 		return -ENOMEM;
2022 
2023 	for (n = 0; n < kirq->nirqs; n++)
2024 		irq_create_mapping(kirq->domain, n);
2025 
2026 	ret = request_threaded_irq(kirq->irq_num, NULL, ksz_irq_thread_fn,
2027 				   IRQF_ONESHOT, kirq->name, kirq);
2028 	if (ret)
2029 		goto out;
2030 
2031 	return 0;
2032 
2033 out:
2034 	ksz_irq_free(kirq);
2035 
2036 	return ret;
2037 }
2038 
2039 static int ksz_girq_setup(struct ksz_device *dev)
2040 {
2041 	struct ksz_irq *girq = &dev->girq;
2042 
2043 	girq->nirqs = dev->info->port_cnt;
2044 	girq->reg_mask = REG_SW_PORT_INT_MASK__1;
2045 	girq->reg_status = REG_SW_PORT_INT_STATUS__1;
2046 	snprintf(girq->name, sizeof(girq->name), "global_port_irq");
2047 
2048 	girq->irq_num = dev->irq;
2049 
2050 	return ksz_irq_common_setup(dev, girq);
2051 }
2052 
2053 static int ksz_pirq_setup(struct ksz_device *dev, u8 p)
2054 {
2055 	struct ksz_irq *pirq = &dev->ports[p].pirq;
2056 
2057 	pirq->nirqs = dev->info->port_nirqs;
2058 	pirq->reg_mask = dev->dev_ops->get_port_addr(p, REG_PORT_INT_MASK);
2059 	pirq->reg_status = dev->dev_ops->get_port_addr(p, REG_PORT_INT_STATUS);
2060 	snprintf(pirq->name, sizeof(pirq->name), "port_irq-%d", p);
2061 
2062 	pirq->irq_num = irq_find_mapping(dev->girq.domain, p);
2063 	if (pirq->irq_num < 0)
2064 		return pirq->irq_num;
2065 
2066 	return ksz_irq_common_setup(dev, pirq);
2067 }
2068 
2069 static int ksz_setup(struct dsa_switch *ds)
2070 {
2071 	struct ksz_device *dev = ds->priv;
2072 	struct dsa_port *dp;
2073 	struct ksz_port *p;
2074 	const u16 *regs;
2075 	int ret;
2076 
2077 	regs = dev->info->regs;
2078 
2079 	dev->vlan_cache = devm_kcalloc(dev->dev, sizeof(struct vlan_table),
2080 				       dev->info->num_vlans, GFP_KERNEL);
2081 	if (!dev->vlan_cache)
2082 		return -ENOMEM;
2083 
2084 	ret = dev->dev_ops->reset(dev);
2085 	if (ret) {
2086 		dev_err(ds->dev, "failed to reset switch\n");
2087 		return ret;
2088 	}
2089 
2090 	/* set broadcast storm protection 10% rate */
2091 	regmap_update_bits(dev->regmap[1], regs[S_BROADCAST_CTRL],
2092 			   BROADCAST_STORM_RATE,
2093 			   (BROADCAST_STORM_VALUE *
2094 			   BROADCAST_STORM_PROT_RATE) / 100);
2095 
2096 	dev->dev_ops->config_cpu_port(ds);
2097 
2098 	dev->dev_ops->enable_stp_addr(dev);
2099 
2100 	ds->num_tx_queues = dev->info->num_tx_queues;
2101 
2102 	regmap_update_bits(dev->regmap[0], regs[S_MULTICAST_CTRL],
2103 			   MULTICAST_STORM_DISABLE, MULTICAST_STORM_DISABLE);
2104 
2105 	ksz_init_mib_timer(dev);
2106 
2107 	ds->configure_vlan_while_not_filtering = false;
2108 
2109 	if (dev->dev_ops->setup) {
2110 		ret = dev->dev_ops->setup(ds);
2111 		if (ret)
2112 			return ret;
2113 	}
2114 
2115 	/* Start with learning disabled on standalone user ports, and enabled
2116 	 * on the CPU port. In lack of other finer mechanisms, learning on the
2117 	 * CPU port will avoid flooding bridge local addresses on the network
2118 	 * in some cases.
2119 	 */
2120 	p = &dev->ports[dev->cpu_port];
2121 	p->learning = true;
2122 
2123 	if (dev->irq > 0) {
2124 		ret = ksz_girq_setup(dev);
2125 		if (ret)
2126 			return ret;
2127 
2128 		dsa_switch_for_each_user_port(dp, dev->ds) {
2129 			ret = ksz_pirq_setup(dev, dp->index);
2130 			if (ret)
2131 				goto out_girq;
2132 
2133 			ret = ksz_ptp_irq_setup(ds, dp->index);
2134 			if (ret)
2135 				goto out_pirq;
2136 		}
2137 	}
2138 
2139 	ret = ksz_ptp_clock_register(ds);
2140 	if (ret) {
2141 		dev_err(dev->dev, "Failed to register PTP clock: %d\n", ret);
2142 		goto out_ptpirq;
2143 	}
2144 
2145 	ret = ksz_mdio_register(dev);
2146 	if (ret < 0) {
2147 		dev_err(dev->dev, "failed to register the mdio");
2148 		goto out_ptp_clock_unregister;
2149 	}
2150 
2151 	/* start switch */
2152 	regmap_update_bits(dev->regmap[0], regs[S_START_CTRL],
2153 			   SW_START, SW_START);
2154 
2155 	return 0;
2156 
2157 out_ptp_clock_unregister:
2158 	ksz_ptp_clock_unregister(ds);
2159 out_ptpirq:
2160 	if (dev->irq > 0)
2161 		dsa_switch_for_each_user_port(dp, dev->ds)
2162 			ksz_ptp_irq_free(ds, dp->index);
2163 out_pirq:
2164 	if (dev->irq > 0)
2165 		dsa_switch_for_each_user_port(dp, dev->ds)
2166 			ksz_irq_free(&dev->ports[dp->index].pirq);
2167 out_girq:
2168 	if (dev->irq > 0)
2169 		ksz_irq_free(&dev->girq);
2170 
2171 	return ret;
2172 }
2173 
2174 static void ksz_teardown(struct dsa_switch *ds)
2175 {
2176 	struct ksz_device *dev = ds->priv;
2177 	struct dsa_port *dp;
2178 
2179 	ksz_ptp_clock_unregister(ds);
2180 
2181 	if (dev->irq > 0) {
2182 		dsa_switch_for_each_user_port(dp, dev->ds) {
2183 			ksz_ptp_irq_free(ds, dp->index);
2184 
2185 			ksz_irq_free(&dev->ports[dp->index].pirq);
2186 		}
2187 
2188 		ksz_irq_free(&dev->girq);
2189 	}
2190 
2191 	if (dev->dev_ops->teardown)
2192 		dev->dev_ops->teardown(ds);
2193 }
2194 
2195 static void port_r_cnt(struct ksz_device *dev, int port)
2196 {
2197 	struct ksz_port_mib *mib = &dev->ports[port].mib;
2198 	u64 *dropped;
2199 
2200 	/* Some ports may not have MIB counters before SWITCH_COUNTER_NUM. */
2201 	while (mib->cnt_ptr < dev->info->reg_mib_cnt) {
2202 		dev->dev_ops->r_mib_cnt(dev, port, mib->cnt_ptr,
2203 					&mib->counters[mib->cnt_ptr]);
2204 		++mib->cnt_ptr;
2205 	}
2206 
2207 	/* last one in storage */
2208 	dropped = &mib->counters[dev->info->mib_cnt];
2209 
2210 	/* Some ports may not have MIB counters after SWITCH_COUNTER_NUM. */
2211 	while (mib->cnt_ptr < dev->info->mib_cnt) {
2212 		dev->dev_ops->r_mib_pkt(dev, port, mib->cnt_ptr,
2213 					dropped, &mib->counters[mib->cnt_ptr]);
2214 		++mib->cnt_ptr;
2215 	}
2216 	mib->cnt_ptr = 0;
2217 }
2218 
2219 static void ksz_mib_read_work(struct work_struct *work)
2220 {
2221 	struct ksz_device *dev = container_of(work, struct ksz_device,
2222 					      mib_read.work);
2223 	struct ksz_port_mib *mib;
2224 	struct ksz_port *p;
2225 	int i;
2226 
2227 	for (i = 0; i < dev->info->port_cnt; i++) {
2228 		if (dsa_is_unused_port(dev->ds, i))
2229 			continue;
2230 
2231 		p = &dev->ports[i];
2232 		mib = &p->mib;
2233 		mutex_lock(&mib->cnt_mutex);
2234 
2235 		/* Only read MIB counters when the port is told to do.
2236 		 * If not, read only dropped counters when link is not up.
2237 		 */
2238 		if (!p->read) {
2239 			const struct dsa_port *dp = dsa_to_port(dev->ds, i);
2240 
2241 			if (!netif_carrier_ok(dp->slave))
2242 				mib->cnt_ptr = dev->info->reg_mib_cnt;
2243 		}
2244 		port_r_cnt(dev, i);
2245 		p->read = false;
2246 
2247 		if (dev->dev_ops->r_mib_stat64)
2248 			dev->dev_ops->r_mib_stat64(dev, i);
2249 
2250 		mutex_unlock(&mib->cnt_mutex);
2251 	}
2252 
2253 	schedule_delayed_work(&dev->mib_read, dev->mib_read_interval);
2254 }
2255 
2256 void ksz_init_mib_timer(struct ksz_device *dev)
2257 {
2258 	int i;
2259 
2260 	INIT_DELAYED_WORK(&dev->mib_read, ksz_mib_read_work);
2261 
2262 	for (i = 0; i < dev->info->port_cnt; i++) {
2263 		struct ksz_port_mib *mib = &dev->ports[i].mib;
2264 
2265 		dev->dev_ops->port_init_cnt(dev, i);
2266 
2267 		mib->cnt_ptr = 0;
2268 		memset(mib->counters, 0, dev->info->mib_cnt * sizeof(u64));
2269 	}
2270 }
2271 
2272 static int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg)
2273 {
2274 	struct ksz_device *dev = ds->priv;
2275 	u16 val = 0xffff;
2276 	int ret;
2277 
2278 	ret = dev->dev_ops->r_phy(dev, addr, reg, &val);
2279 	if (ret)
2280 		return ret;
2281 
2282 	return val;
2283 }
2284 
2285 static int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
2286 {
2287 	struct ksz_device *dev = ds->priv;
2288 	int ret;
2289 
2290 	ret = dev->dev_ops->w_phy(dev, addr, reg, val);
2291 	if (ret)
2292 		return ret;
2293 
2294 	return 0;
2295 }
2296 
2297 static u32 ksz_get_phy_flags(struct dsa_switch *ds, int port)
2298 {
2299 	struct ksz_device *dev = ds->priv;
2300 
2301 	if (dev->chip_id == KSZ8830_CHIP_ID) {
2302 		/* Silicon Errata Sheet (DS80000830A):
2303 		 * Port 1 does not work with LinkMD Cable-Testing.
2304 		 * Port 1 does not respond to received PAUSE control frames.
2305 		 */
2306 		if (!port)
2307 			return MICREL_KSZ8_P1_ERRATA;
2308 	}
2309 
2310 	return 0;
2311 }
2312 
2313 static void ksz_mac_link_down(struct dsa_switch *ds, int port,
2314 			      unsigned int mode, phy_interface_t interface)
2315 {
2316 	struct ksz_device *dev = ds->priv;
2317 	struct ksz_port *p = &dev->ports[port];
2318 
2319 	/* Read all MIB counters when the link is going down. */
2320 	p->read = true;
2321 	/* timer started */
2322 	if (dev->mib_read_interval)
2323 		schedule_delayed_work(&dev->mib_read, 0);
2324 }
2325 
2326 static int ksz_sset_count(struct dsa_switch *ds, int port, int sset)
2327 {
2328 	struct ksz_device *dev = ds->priv;
2329 
2330 	if (sset != ETH_SS_STATS)
2331 		return 0;
2332 
2333 	return dev->info->mib_cnt;
2334 }
2335 
2336 static void ksz_get_ethtool_stats(struct dsa_switch *ds, int port,
2337 				  uint64_t *buf)
2338 {
2339 	const struct dsa_port *dp = dsa_to_port(ds, port);
2340 	struct ksz_device *dev = ds->priv;
2341 	struct ksz_port_mib *mib;
2342 
2343 	mib = &dev->ports[port].mib;
2344 	mutex_lock(&mib->cnt_mutex);
2345 
2346 	/* Only read dropped counters if no link. */
2347 	if (!netif_carrier_ok(dp->slave))
2348 		mib->cnt_ptr = dev->info->reg_mib_cnt;
2349 	port_r_cnt(dev, port);
2350 	memcpy(buf, mib->counters, dev->info->mib_cnt * sizeof(u64));
2351 	mutex_unlock(&mib->cnt_mutex);
2352 }
2353 
2354 static int ksz_port_bridge_join(struct dsa_switch *ds, int port,
2355 				struct dsa_bridge bridge,
2356 				bool *tx_fwd_offload,
2357 				struct netlink_ext_ack *extack)
2358 {
2359 	/* port_stp_state_set() will be called after to put the port in
2360 	 * appropriate state so there is no need to do anything.
2361 	 */
2362 
2363 	return 0;
2364 }
2365 
2366 static void ksz_port_bridge_leave(struct dsa_switch *ds, int port,
2367 				  struct dsa_bridge bridge)
2368 {
2369 	/* port_stp_state_set() will be called after to put the port in
2370 	 * forwarding state so there is no need to do anything.
2371 	 */
2372 }
2373 
2374 static void ksz_port_fast_age(struct dsa_switch *ds, int port)
2375 {
2376 	struct ksz_device *dev = ds->priv;
2377 
2378 	dev->dev_ops->flush_dyn_mac_table(dev, port);
2379 }
2380 
2381 static int ksz_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
2382 {
2383 	struct ksz_device *dev = ds->priv;
2384 
2385 	if (!dev->dev_ops->set_ageing_time)
2386 		return -EOPNOTSUPP;
2387 
2388 	return dev->dev_ops->set_ageing_time(dev, msecs);
2389 }
2390 
2391 static int ksz_port_fdb_add(struct dsa_switch *ds, int port,
2392 			    const unsigned char *addr, u16 vid,
2393 			    struct dsa_db db)
2394 {
2395 	struct ksz_device *dev = ds->priv;
2396 
2397 	if (!dev->dev_ops->fdb_add)
2398 		return -EOPNOTSUPP;
2399 
2400 	return dev->dev_ops->fdb_add(dev, port, addr, vid, db);
2401 }
2402 
2403 static int ksz_port_fdb_del(struct dsa_switch *ds, int port,
2404 			    const unsigned char *addr,
2405 			    u16 vid, struct dsa_db db)
2406 {
2407 	struct ksz_device *dev = ds->priv;
2408 
2409 	if (!dev->dev_ops->fdb_del)
2410 		return -EOPNOTSUPP;
2411 
2412 	return dev->dev_ops->fdb_del(dev, port, addr, vid, db);
2413 }
2414 
2415 static int ksz_port_fdb_dump(struct dsa_switch *ds, int port,
2416 			     dsa_fdb_dump_cb_t *cb, void *data)
2417 {
2418 	struct ksz_device *dev = ds->priv;
2419 
2420 	if (!dev->dev_ops->fdb_dump)
2421 		return -EOPNOTSUPP;
2422 
2423 	return dev->dev_ops->fdb_dump(dev, port, cb, data);
2424 }
2425 
2426 static int ksz_port_mdb_add(struct dsa_switch *ds, int port,
2427 			    const struct switchdev_obj_port_mdb *mdb,
2428 			    struct dsa_db db)
2429 {
2430 	struct ksz_device *dev = ds->priv;
2431 
2432 	if (!dev->dev_ops->mdb_add)
2433 		return -EOPNOTSUPP;
2434 
2435 	return dev->dev_ops->mdb_add(dev, port, mdb, db);
2436 }
2437 
2438 static int ksz_port_mdb_del(struct dsa_switch *ds, int port,
2439 			    const struct switchdev_obj_port_mdb *mdb,
2440 			    struct dsa_db db)
2441 {
2442 	struct ksz_device *dev = ds->priv;
2443 
2444 	if (!dev->dev_ops->mdb_del)
2445 		return -EOPNOTSUPP;
2446 
2447 	return dev->dev_ops->mdb_del(dev, port, mdb, db);
2448 }
2449 
2450 static int ksz_enable_port(struct dsa_switch *ds, int port,
2451 			   struct phy_device *phy)
2452 {
2453 	struct ksz_device *dev = ds->priv;
2454 
2455 	if (!dsa_is_user_port(ds, port))
2456 		return 0;
2457 
2458 	/* setup slave port */
2459 	dev->dev_ops->port_setup(dev, port, false);
2460 
2461 	/* port_stp_state_set() will be called after to enable the port so
2462 	 * there is no need to do anything.
2463 	 */
2464 
2465 	return 0;
2466 }
2467 
2468 void ksz_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
2469 {
2470 	struct ksz_device *dev = ds->priv;
2471 	struct ksz_port *p;
2472 	const u16 *regs;
2473 	u8 data;
2474 
2475 	regs = dev->info->regs;
2476 
2477 	ksz_pread8(dev, port, regs[P_STP_CTRL], &data);
2478 	data &= ~(PORT_TX_ENABLE | PORT_RX_ENABLE | PORT_LEARN_DISABLE);
2479 
2480 	p = &dev->ports[port];
2481 
2482 	switch (state) {
2483 	case BR_STATE_DISABLED:
2484 		data |= PORT_LEARN_DISABLE;
2485 		break;
2486 	case BR_STATE_LISTENING:
2487 		data |= (PORT_RX_ENABLE | PORT_LEARN_DISABLE);
2488 		break;
2489 	case BR_STATE_LEARNING:
2490 		data |= PORT_RX_ENABLE;
2491 		if (!p->learning)
2492 			data |= PORT_LEARN_DISABLE;
2493 		break;
2494 	case BR_STATE_FORWARDING:
2495 		data |= (PORT_TX_ENABLE | PORT_RX_ENABLE);
2496 		if (!p->learning)
2497 			data |= PORT_LEARN_DISABLE;
2498 		break;
2499 	case BR_STATE_BLOCKING:
2500 		data |= PORT_LEARN_DISABLE;
2501 		break;
2502 	default:
2503 		dev_err(ds->dev, "invalid STP state: %d\n", state);
2504 		return;
2505 	}
2506 
2507 	ksz_pwrite8(dev, port, regs[P_STP_CTRL], data);
2508 
2509 	p->stp_state = state;
2510 
2511 	ksz_update_port_member(dev, port);
2512 }
2513 
2514 static int ksz_port_pre_bridge_flags(struct dsa_switch *ds, int port,
2515 				     struct switchdev_brport_flags flags,
2516 				     struct netlink_ext_ack *extack)
2517 {
2518 	if (flags.mask & ~BR_LEARNING)
2519 		return -EINVAL;
2520 
2521 	return 0;
2522 }
2523 
2524 static int ksz_port_bridge_flags(struct dsa_switch *ds, int port,
2525 				 struct switchdev_brport_flags flags,
2526 				 struct netlink_ext_ack *extack)
2527 {
2528 	struct ksz_device *dev = ds->priv;
2529 	struct ksz_port *p = &dev->ports[port];
2530 
2531 	if (flags.mask & BR_LEARNING) {
2532 		p->learning = !!(flags.val & BR_LEARNING);
2533 
2534 		/* Make the change take effect immediately */
2535 		ksz_port_stp_state_set(ds, port, p->stp_state);
2536 	}
2537 
2538 	return 0;
2539 }
2540 
2541 static enum dsa_tag_protocol ksz_get_tag_protocol(struct dsa_switch *ds,
2542 						  int port,
2543 						  enum dsa_tag_protocol mp)
2544 {
2545 	struct ksz_device *dev = ds->priv;
2546 	enum dsa_tag_protocol proto = DSA_TAG_PROTO_NONE;
2547 
2548 	if (dev->chip_id == KSZ8795_CHIP_ID ||
2549 	    dev->chip_id == KSZ8794_CHIP_ID ||
2550 	    dev->chip_id == KSZ8765_CHIP_ID)
2551 		proto = DSA_TAG_PROTO_KSZ8795;
2552 
2553 	if (dev->chip_id == KSZ8830_CHIP_ID ||
2554 	    dev->chip_id == KSZ8563_CHIP_ID ||
2555 	    dev->chip_id == KSZ9893_CHIP_ID ||
2556 	    dev->chip_id == KSZ9563_CHIP_ID)
2557 		proto = DSA_TAG_PROTO_KSZ9893;
2558 
2559 	if (dev->chip_id == KSZ9477_CHIP_ID ||
2560 	    dev->chip_id == KSZ9896_CHIP_ID ||
2561 	    dev->chip_id == KSZ9897_CHIP_ID ||
2562 	    dev->chip_id == KSZ9567_CHIP_ID)
2563 		proto = DSA_TAG_PROTO_KSZ9477;
2564 
2565 	if (is_lan937x(dev))
2566 		proto = DSA_TAG_PROTO_LAN937X_VALUE;
2567 
2568 	return proto;
2569 }
2570 
2571 static int ksz_connect_tag_protocol(struct dsa_switch *ds,
2572 				    enum dsa_tag_protocol proto)
2573 {
2574 	struct ksz_tagger_data *tagger_data;
2575 
2576 	tagger_data = ksz_tagger_data(ds);
2577 	tagger_data->xmit_work_fn = ksz_port_deferred_xmit;
2578 
2579 	return 0;
2580 }
2581 
2582 static int ksz_port_vlan_filtering(struct dsa_switch *ds, int port,
2583 				   bool flag, struct netlink_ext_ack *extack)
2584 {
2585 	struct ksz_device *dev = ds->priv;
2586 
2587 	if (!dev->dev_ops->vlan_filtering)
2588 		return -EOPNOTSUPP;
2589 
2590 	return dev->dev_ops->vlan_filtering(dev, port, flag, extack);
2591 }
2592 
2593 static int ksz_port_vlan_add(struct dsa_switch *ds, int port,
2594 			     const struct switchdev_obj_port_vlan *vlan,
2595 			     struct netlink_ext_ack *extack)
2596 {
2597 	struct ksz_device *dev = ds->priv;
2598 
2599 	if (!dev->dev_ops->vlan_add)
2600 		return -EOPNOTSUPP;
2601 
2602 	return dev->dev_ops->vlan_add(dev, port, vlan, extack);
2603 }
2604 
2605 static int ksz_port_vlan_del(struct dsa_switch *ds, int port,
2606 			     const struct switchdev_obj_port_vlan *vlan)
2607 {
2608 	struct ksz_device *dev = ds->priv;
2609 
2610 	if (!dev->dev_ops->vlan_del)
2611 		return -EOPNOTSUPP;
2612 
2613 	return dev->dev_ops->vlan_del(dev, port, vlan);
2614 }
2615 
2616 static int ksz_port_mirror_add(struct dsa_switch *ds, int port,
2617 			       struct dsa_mall_mirror_tc_entry *mirror,
2618 			       bool ingress, struct netlink_ext_ack *extack)
2619 {
2620 	struct ksz_device *dev = ds->priv;
2621 
2622 	if (!dev->dev_ops->mirror_add)
2623 		return -EOPNOTSUPP;
2624 
2625 	return dev->dev_ops->mirror_add(dev, port, mirror, ingress, extack);
2626 }
2627 
2628 static void ksz_port_mirror_del(struct dsa_switch *ds, int port,
2629 				struct dsa_mall_mirror_tc_entry *mirror)
2630 {
2631 	struct ksz_device *dev = ds->priv;
2632 
2633 	if (dev->dev_ops->mirror_del)
2634 		dev->dev_ops->mirror_del(dev, port, mirror);
2635 }
2636 
2637 static int ksz_change_mtu(struct dsa_switch *ds, int port, int mtu)
2638 {
2639 	struct ksz_device *dev = ds->priv;
2640 
2641 	if (!dev->dev_ops->change_mtu)
2642 		return -EOPNOTSUPP;
2643 
2644 	return dev->dev_ops->change_mtu(dev, port, mtu);
2645 }
2646 
2647 static int ksz_max_mtu(struct dsa_switch *ds, int port)
2648 {
2649 	struct ksz_device *dev = ds->priv;
2650 
2651 	switch (dev->chip_id) {
2652 	case KSZ8795_CHIP_ID:
2653 	case KSZ8794_CHIP_ID:
2654 	case KSZ8765_CHIP_ID:
2655 		return KSZ8795_HUGE_PACKET_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
2656 	case KSZ8830_CHIP_ID:
2657 		return KSZ8863_HUGE_PACKET_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
2658 	case KSZ8563_CHIP_ID:
2659 	case KSZ9477_CHIP_ID:
2660 	case KSZ9563_CHIP_ID:
2661 	case KSZ9567_CHIP_ID:
2662 	case KSZ9893_CHIP_ID:
2663 	case KSZ9896_CHIP_ID:
2664 	case KSZ9897_CHIP_ID:
2665 	case LAN9370_CHIP_ID:
2666 	case LAN9371_CHIP_ID:
2667 	case LAN9372_CHIP_ID:
2668 	case LAN9373_CHIP_ID:
2669 	case LAN9374_CHIP_ID:
2670 		return KSZ9477_MAX_FRAME_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
2671 	}
2672 
2673 	return -EOPNOTSUPP;
2674 }
2675 
2676 static int ksz_validate_eee(struct dsa_switch *ds, int port)
2677 {
2678 	struct ksz_device *dev = ds->priv;
2679 
2680 	if (!dev->info->internal_phy[port])
2681 		return -EOPNOTSUPP;
2682 
2683 	switch (dev->chip_id) {
2684 	case KSZ8563_CHIP_ID:
2685 	case KSZ9477_CHIP_ID:
2686 	case KSZ9563_CHIP_ID:
2687 	case KSZ9567_CHIP_ID:
2688 	case KSZ9893_CHIP_ID:
2689 	case KSZ9896_CHIP_ID:
2690 	case KSZ9897_CHIP_ID:
2691 		return 0;
2692 	}
2693 
2694 	return -EOPNOTSUPP;
2695 }
2696 
2697 static int ksz_get_mac_eee(struct dsa_switch *ds, int port,
2698 			   struct ethtool_eee *e)
2699 {
2700 	int ret;
2701 
2702 	ret = ksz_validate_eee(ds, port);
2703 	if (ret)
2704 		return ret;
2705 
2706 	/* There is no documented control of Tx LPI configuration. */
2707 	e->tx_lpi_enabled = true;
2708 
2709 	/* There is no documented control of Tx LPI timer. According to tests
2710 	 * Tx LPI timer seems to be set by default to minimal value.
2711 	 */
2712 	e->tx_lpi_timer = 0;
2713 
2714 	return 0;
2715 }
2716 
2717 static int ksz_set_mac_eee(struct dsa_switch *ds, int port,
2718 			   struct ethtool_eee *e)
2719 {
2720 	struct ksz_device *dev = ds->priv;
2721 	int ret;
2722 
2723 	ret = ksz_validate_eee(ds, port);
2724 	if (ret)
2725 		return ret;
2726 
2727 	if (!e->tx_lpi_enabled) {
2728 		dev_err(dev->dev, "Disabling EEE Tx LPI is not supported\n");
2729 		return -EINVAL;
2730 	}
2731 
2732 	if (e->tx_lpi_timer) {
2733 		dev_err(dev->dev, "Setting EEE Tx LPI timer is not supported\n");
2734 		return -EINVAL;
2735 	}
2736 
2737 	return 0;
2738 }
2739 
2740 static void ksz_set_xmii(struct ksz_device *dev, int port,
2741 			 phy_interface_t interface)
2742 {
2743 	const u8 *bitval = dev->info->xmii_ctrl1;
2744 	struct ksz_port *p = &dev->ports[port];
2745 	const u16 *regs = dev->info->regs;
2746 	u8 data8;
2747 
2748 	ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8);
2749 
2750 	data8 &= ~(P_MII_SEL_M | P_RGMII_ID_IG_ENABLE |
2751 		   P_RGMII_ID_EG_ENABLE);
2752 
2753 	switch (interface) {
2754 	case PHY_INTERFACE_MODE_MII:
2755 		data8 |= bitval[P_MII_SEL];
2756 		break;
2757 	case PHY_INTERFACE_MODE_RMII:
2758 		data8 |= bitval[P_RMII_SEL];
2759 		break;
2760 	case PHY_INTERFACE_MODE_GMII:
2761 		data8 |= bitval[P_GMII_SEL];
2762 		break;
2763 	case PHY_INTERFACE_MODE_RGMII:
2764 	case PHY_INTERFACE_MODE_RGMII_ID:
2765 	case PHY_INTERFACE_MODE_RGMII_TXID:
2766 	case PHY_INTERFACE_MODE_RGMII_RXID:
2767 		data8 |= bitval[P_RGMII_SEL];
2768 		/* On KSZ9893, disable RGMII in-band status support */
2769 		if (dev->chip_id == KSZ9893_CHIP_ID ||
2770 		    dev->chip_id == KSZ8563_CHIP_ID ||
2771 		    dev->chip_id == KSZ9563_CHIP_ID)
2772 			data8 &= ~P_MII_MAC_MODE;
2773 		break;
2774 	default:
2775 		dev_err(dev->dev, "Unsupported interface '%s' for port %d\n",
2776 			phy_modes(interface), port);
2777 		return;
2778 	}
2779 
2780 	if (p->rgmii_tx_val)
2781 		data8 |= P_RGMII_ID_EG_ENABLE;
2782 
2783 	if (p->rgmii_rx_val)
2784 		data8 |= P_RGMII_ID_IG_ENABLE;
2785 
2786 	/* Write the updated value */
2787 	ksz_pwrite8(dev, port, regs[P_XMII_CTRL_1], data8);
2788 }
2789 
2790 phy_interface_t ksz_get_xmii(struct ksz_device *dev, int port, bool gbit)
2791 {
2792 	const u8 *bitval = dev->info->xmii_ctrl1;
2793 	const u16 *regs = dev->info->regs;
2794 	phy_interface_t interface;
2795 	u8 data8;
2796 	u8 val;
2797 
2798 	ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8);
2799 
2800 	val = FIELD_GET(P_MII_SEL_M, data8);
2801 
2802 	if (val == bitval[P_MII_SEL]) {
2803 		if (gbit)
2804 			interface = PHY_INTERFACE_MODE_GMII;
2805 		else
2806 			interface = PHY_INTERFACE_MODE_MII;
2807 	} else if (val == bitval[P_RMII_SEL]) {
2808 		interface = PHY_INTERFACE_MODE_RGMII;
2809 	} else {
2810 		interface = PHY_INTERFACE_MODE_RGMII;
2811 		if (data8 & P_RGMII_ID_EG_ENABLE)
2812 			interface = PHY_INTERFACE_MODE_RGMII_TXID;
2813 		if (data8 & P_RGMII_ID_IG_ENABLE) {
2814 			interface = PHY_INTERFACE_MODE_RGMII_RXID;
2815 			if (data8 & P_RGMII_ID_EG_ENABLE)
2816 				interface = PHY_INTERFACE_MODE_RGMII_ID;
2817 		}
2818 	}
2819 
2820 	return interface;
2821 }
2822 
2823 static void ksz_phylink_mac_config(struct dsa_switch *ds, int port,
2824 				   unsigned int mode,
2825 				   const struct phylink_link_state *state)
2826 {
2827 	struct ksz_device *dev = ds->priv;
2828 
2829 	if (ksz_is_ksz88x3(dev))
2830 		return;
2831 
2832 	/* Internal PHYs */
2833 	if (dev->info->internal_phy[port])
2834 		return;
2835 
2836 	if (phylink_autoneg_inband(mode)) {
2837 		dev_err(dev->dev, "In-band AN not supported!\n");
2838 		return;
2839 	}
2840 
2841 	ksz_set_xmii(dev, port, state->interface);
2842 
2843 	if (dev->dev_ops->phylink_mac_config)
2844 		dev->dev_ops->phylink_mac_config(dev, port, mode, state);
2845 
2846 	if (dev->dev_ops->setup_rgmii_delay)
2847 		dev->dev_ops->setup_rgmii_delay(dev, port);
2848 }
2849 
2850 bool ksz_get_gbit(struct ksz_device *dev, int port)
2851 {
2852 	const u8 *bitval = dev->info->xmii_ctrl1;
2853 	const u16 *regs = dev->info->regs;
2854 	bool gbit = false;
2855 	u8 data8;
2856 	bool val;
2857 
2858 	ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8);
2859 
2860 	val = FIELD_GET(P_GMII_1GBIT_M, data8);
2861 
2862 	if (val == bitval[P_GMII_1GBIT])
2863 		gbit = true;
2864 
2865 	return gbit;
2866 }
2867 
2868 static void ksz_set_gbit(struct ksz_device *dev, int port, bool gbit)
2869 {
2870 	const u8 *bitval = dev->info->xmii_ctrl1;
2871 	const u16 *regs = dev->info->regs;
2872 	u8 data8;
2873 
2874 	ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8);
2875 
2876 	data8 &= ~P_GMII_1GBIT_M;
2877 
2878 	if (gbit)
2879 		data8 |= FIELD_PREP(P_GMII_1GBIT_M, bitval[P_GMII_1GBIT]);
2880 	else
2881 		data8 |= FIELD_PREP(P_GMII_1GBIT_M, bitval[P_GMII_NOT_1GBIT]);
2882 
2883 	/* Write the updated value */
2884 	ksz_pwrite8(dev, port, regs[P_XMII_CTRL_1], data8);
2885 }
2886 
2887 static void ksz_set_100_10mbit(struct ksz_device *dev, int port, int speed)
2888 {
2889 	const u8 *bitval = dev->info->xmii_ctrl0;
2890 	const u16 *regs = dev->info->regs;
2891 	u8 data8;
2892 
2893 	ksz_pread8(dev, port, regs[P_XMII_CTRL_0], &data8);
2894 
2895 	data8 &= ~P_MII_100MBIT_M;
2896 
2897 	if (speed == SPEED_100)
2898 		data8 |= FIELD_PREP(P_MII_100MBIT_M, bitval[P_MII_100MBIT]);
2899 	else
2900 		data8 |= FIELD_PREP(P_MII_100MBIT_M, bitval[P_MII_10MBIT]);
2901 
2902 	/* Write the updated value */
2903 	ksz_pwrite8(dev, port, regs[P_XMII_CTRL_0], data8);
2904 }
2905 
2906 static void ksz_port_set_xmii_speed(struct ksz_device *dev, int port, int speed)
2907 {
2908 	if (speed == SPEED_1000)
2909 		ksz_set_gbit(dev, port, true);
2910 	else
2911 		ksz_set_gbit(dev, port, false);
2912 
2913 	if (speed == SPEED_100 || speed == SPEED_10)
2914 		ksz_set_100_10mbit(dev, port, speed);
2915 }
2916 
2917 static void ksz_duplex_flowctrl(struct ksz_device *dev, int port, int duplex,
2918 				bool tx_pause, bool rx_pause)
2919 {
2920 	const u8 *bitval = dev->info->xmii_ctrl0;
2921 	const u32 *masks = dev->info->masks;
2922 	const u16 *regs = dev->info->regs;
2923 	u8 mask;
2924 	u8 val;
2925 
2926 	mask = P_MII_DUPLEX_M | masks[P_MII_TX_FLOW_CTRL] |
2927 	       masks[P_MII_RX_FLOW_CTRL];
2928 
2929 	if (duplex == DUPLEX_FULL)
2930 		val = FIELD_PREP(P_MII_DUPLEX_M, bitval[P_MII_FULL_DUPLEX]);
2931 	else
2932 		val = FIELD_PREP(P_MII_DUPLEX_M, bitval[P_MII_HALF_DUPLEX]);
2933 
2934 	if (tx_pause)
2935 		val |= masks[P_MII_TX_FLOW_CTRL];
2936 
2937 	if (rx_pause)
2938 		val |= masks[P_MII_RX_FLOW_CTRL];
2939 
2940 	ksz_prmw8(dev, port, regs[P_XMII_CTRL_0], mask, val);
2941 }
2942 
2943 static void ksz9477_phylink_mac_link_up(struct ksz_device *dev, int port,
2944 					unsigned int mode,
2945 					phy_interface_t interface,
2946 					struct phy_device *phydev, int speed,
2947 					int duplex, bool tx_pause,
2948 					bool rx_pause)
2949 {
2950 	struct ksz_port *p;
2951 
2952 	p = &dev->ports[port];
2953 
2954 	/* Internal PHYs */
2955 	if (dev->info->internal_phy[port])
2956 		return;
2957 
2958 	p->phydev.speed = speed;
2959 
2960 	ksz_port_set_xmii_speed(dev, port, speed);
2961 
2962 	ksz_duplex_flowctrl(dev, port, duplex, tx_pause, rx_pause);
2963 }
2964 
2965 static void ksz_phylink_mac_link_up(struct dsa_switch *ds, int port,
2966 				    unsigned int mode,
2967 				    phy_interface_t interface,
2968 				    struct phy_device *phydev, int speed,
2969 				    int duplex, bool tx_pause, bool rx_pause)
2970 {
2971 	struct ksz_device *dev = ds->priv;
2972 
2973 	if (dev->dev_ops->phylink_mac_link_up)
2974 		dev->dev_ops->phylink_mac_link_up(dev, port, mode, interface,
2975 						  phydev, speed, duplex,
2976 						  tx_pause, rx_pause);
2977 }
2978 
2979 static int ksz_switch_detect(struct ksz_device *dev)
2980 {
2981 	u8 id1, id2, id4;
2982 	u16 id16;
2983 	u32 id32;
2984 	int ret;
2985 
2986 	/* read chip id */
2987 	ret = ksz_read16(dev, REG_CHIP_ID0, &id16);
2988 	if (ret)
2989 		return ret;
2990 
2991 	id1 = FIELD_GET(SW_FAMILY_ID_M, id16);
2992 	id2 = FIELD_GET(SW_CHIP_ID_M, id16);
2993 
2994 	switch (id1) {
2995 	case KSZ87_FAMILY_ID:
2996 		if (id2 == KSZ87_CHIP_ID_95) {
2997 			u8 val;
2998 
2999 			dev->chip_id = KSZ8795_CHIP_ID;
3000 
3001 			ksz_read8(dev, KSZ8_PORT_STATUS_0, &val);
3002 			if (val & KSZ8_PORT_FIBER_MODE)
3003 				dev->chip_id = KSZ8765_CHIP_ID;
3004 		} else if (id2 == KSZ87_CHIP_ID_94) {
3005 			dev->chip_id = KSZ8794_CHIP_ID;
3006 		} else {
3007 			return -ENODEV;
3008 		}
3009 		break;
3010 	case KSZ88_FAMILY_ID:
3011 		if (id2 == KSZ88_CHIP_ID_63)
3012 			dev->chip_id = KSZ8830_CHIP_ID;
3013 		else
3014 			return -ENODEV;
3015 		break;
3016 	default:
3017 		ret = ksz_read32(dev, REG_CHIP_ID0, &id32);
3018 		if (ret)
3019 			return ret;
3020 
3021 		dev->chip_rev = FIELD_GET(SW_REV_ID_M, id32);
3022 		id32 &= ~0xFF;
3023 
3024 		switch (id32) {
3025 		case KSZ9477_CHIP_ID:
3026 		case KSZ9896_CHIP_ID:
3027 		case KSZ9897_CHIP_ID:
3028 		case KSZ9567_CHIP_ID:
3029 		case LAN9370_CHIP_ID:
3030 		case LAN9371_CHIP_ID:
3031 		case LAN9372_CHIP_ID:
3032 		case LAN9373_CHIP_ID:
3033 		case LAN9374_CHIP_ID:
3034 			dev->chip_id = id32;
3035 			break;
3036 		case KSZ9893_CHIP_ID:
3037 			ret = ksz_read8(dev, REG_CHIP_ID4,
3038 					&id4);
3039 			if (ret)
3040 				return ret;
3041 
3042 			if (id4 == SKU_ID_KSZ8563)
3043 				dev->chip_id = KSZ8563_CHIP_ID;
3044 			else if (id4 == SKU_ID_KSZ9563)
3045 				dev->chip_id = KSZ9563_CHIP_ID;
3046 			else
3047 				dev->chip_id = KSZ9893_CHIP_ID;
3048 
3049 			break;
3050 		default:
3051 			dev_err(dev->dev,
3052 				"unsupported switch detected %x)\n", id32);
3053 			return -ENODEV;
3054 		}
3055 	}
3056 	return 0;
3057 }
3058 
3059 /* Bandwidth is calculated by idle slope/transmission speed. Then the Bandwidth
3060  * is converted to Hex-decimal using the successive multiplication method. On
3061  * every step, integer part is taken and decimal part is carry forwarded.
3062  */
3063 static int cinc_cal(s32 idle_slope, s32 send_slope, u32 *bw)
3064 {
3065 	u32 cinc = 0;
3066 	u32 txrate;
3067 	u32 rate;
3068 	u8 temp;
3069 	u8 i;
3070 
3071 	txrate = idle_slope - send_slope;
3072 
3073 	if (!txrate)
3074 		return -EINVAL;
3075 
3076 	rate = idle_slope;
3077 
3078 	/* 24 bit register */
3079 	for (i = 0; i < 6; i++) {
3080 		rate = rate * 16;
3081 
3082 		temp = rate / txrate;
3083 
3084 		rate %= txrate;
3085 
3086 		cinc = ((cinc << 4) | temp);
3087 	}
3088 
3089 	*bw = cinc;
3090 
3091 	return 0;
3092 }
3093 
3094 static int ksz_setup_tc_cbs(struct dsa_switch *ds, int port,
3095 			    struct tc_cbs_qopt_offload *qopt)
3096 {
3097 	struct ksz_device *dev = ds->priv;
3098 	int ret;
3099 	u32 bw;
3100 
3101 	if (!dev->info->tc_cbs_supported)
3102 		return -EOPNOTSUPP;
3103 
3104 	if (qopt->queue > dev->info->num_tx_queues)
3105 		return -EINVAL;
3106 
3107 	/* Queue Selection */
3108 	ret = ksz_pwrite32(dev, port, REG_PORT_MTI_QUEUE_INDEX__4, qopt->queue);
3109 	if (ret)
3110 		return ret;
3111 
3112 	if (!qopt->enable)
3113 		return ksz_pwrite8(dev, port, REG_PORT_MTI_QUEUE_CTRL_0,
3114 				   KSZ_CBS_DISABLE);
3115 
3116 	/* High Credit */
3117 	ret = ksz_pwrite16(dev, port, REG_PORT_MTI_HI_WATER_MARK,
3118 			   qopt->hicredit);
3119 	if (ret)
3120 		return ret;
3121 
3122 	/* Low Credit */
3123 	ret = ksz_pwrite16(dev, port, REG_PORT_MTI_LO_WATER_MARK,
3124 			   qopt->locredit);
3125 	if (ret)
3126 		return ret;
3127 
3128 	/* Credit Increment Register */
3129 	ret = cinc_cal(qopt->idleslope, qopt->sendslope, &bw);
3130 	if (ret)
3131 		return ret;
3132 
3133 	if (dev->dev_ops->tc_cbs_set_cinc) {
3134 		ret = dev->dev_ops->tc_cbs_set_cinc(dev, port, bw);
3135 		if (ret)
3136 			return ret;
3137 	}
3138 
3139 	return ksz_pwrite8(dev, port, REG_PORT_MTI_QUEUE_CTRL_0,
3140 			   KSZ_CBS_ENABLE);
3141 }
3142 
3143 static int ksz_setup_tc(struct dsa_switch *ds, int port,
3144 			enum tc_setup_type type, void *type_data)
3145 {
3146 	switch (type) {
3147 	case TC_SETUP_QDISC_CBS:
3148 		return ksz_setup_tc_cbs(ds, port, type_data);
3149 	default:
3150 		return -EOPNOTSUPP;
3151 	}
3152 }
3153 
3154 static const struct dsa_switch_ops ksz_switch_ops = {
3155 	.get_tag_protocol	= ksz_get_tag_protocol,
3156 	.connect_tag_protocol   = ksz_connect_tag_protocol,
3157 	.get_phy_flags		= ksz_get_phy_flags,
3158 	.setup			= ksz_setup,
3159 	.teardown		= ksz_teardown,
3160 	.phy_read		= ksz_phy_read16,
3161 	.phy_write		= ksz_phy_write16,
3162 	.phylink_get_caps	= ksz_phylink_get_caps,
3163 	.phylink_mac_config	= ksz_phylink_mac_config,
3164 	.phylink_mac_link_up	= ksz_phylink_mac_link_up,
3165 	.phylink_mac_link_down	= ksz_mac_link_down,
3166 	.port_enable		= ksz_enable_port,
3167 	.set_ageing_time	= ksz_set_ageing_time,
3168 	.get_strings		= ksz_get_strings,
3169 	.get_ethtool_stats	= ksz_get_ethtool_stats,
3170 	.get_sset_count		= ksz_sset_count,
3171 	.port_bridge_join	= ksz_port_bridge_join,
3172 	.port_bridge_leave	= ksz_port_bridge_leave,
3173 	.port_stp_state_set	= ksz_port_stp_state_set,
3174 	.port_pre_bridge_flags	= ksz_port_pre_bridge_flags,
3175 	.port_bridge_flags	= ksz_port_bridge_flags,
3176 	.port_fast_age		= ksz_port_fast_age,
3177 	.port_vlan_filtering	= ksz_port_vlan_filtering,
3178 	.port_vlan_add		= ksz_port_vlan_add,
3179 	.port_vlan_del		= ksz_port_vlan_del,
3180 	.port_fdb_dump		= ksz_port_fdb_dump,
3181 	.port_fdb_add		= ksz_port_fdb_add,
3182 	.port_fdb_del		= ksz_port_fdb_del,
3183 	.port_mdb_add           = ksz_port_mdb_add,
3184 	.port_mdb_del           = ksz_port_mdb_del,
3185 	.port_mirror_add	= ksz_port_mirror_add,
3186 	.port_mirror_del	= ksz_port_mirror_del,
3187 	.get_stats64		= ksz_get_stats64,
3188 	.get_pause_stats	= ksz_get_pause_stats,
3189 	.port_change_mtu	= ksz_change_mtu,
3190 	.port_max_mtu		= ksz_max_mtu,
3191 	.get_ts_info		= ksz_get_ts_info,
3192 	.port_hwtstamp_get	= ksz_hwtstamp_get,
3193 	.port_hwtstamp_set	= ksz_hwtstamp_set,
3194 	.port_txtstamp		= ksz_port_txtstamp,
3195 	.port_rxtstamp		= ksz_port_rxtstamp,
3196 	.port_setup_tc		= ksz_setup_tc,
3197 	.get_mac_eee		= ksz_get_mac_eee,
3198 	.set_mac_eee		= ksz_set_mac_eee,
3199 };
3200 
3201 struct ksz_device *ksz_switch_alloc(struct device *base, void *priv)
3202 {
3203 	struct dsa_switch *ds;
3204 	struct ksz_device *swdev;
3205 
3206 	ds = devm_kzalloc(base, sizeof(*ds), GFP_KERNEL);
3207 	if (!ds)
3208 		return NULL;
3209 
3210 	ds->dev = base;
3211 	ds->num_ports = DSA_MAX_PORTS;
3212 	ds->ops = &ksz_switch_ops;
3213 
3214 	swdev = devm_kzalloc(base, sizeof(*swdev), GFP_KERNEL);
3215 	if (!swdev)
3216 		return NULL;
3217 
3218 	ds->priv = swdev;
3219 	swdev->dev = base;
3220 
3221 	swdev->ds = ds;
3222 	swdev->priv = priv;
3223 
3224 	return swdev;
3225 }
3226 EXPORT_SYMBOL(ksz_switch_alloc);
3227 
3228 static void ksz_parse_rgmii_delay(struct ksz_device *dev, int port_num,
3229 				  struct device_node *port_dn)
3230 {
3231 	phy_interface_t phy_mode = dev->ports[port_num].interface;
3232 	int rx_delay = -1, tx_delay = -1;
3233 
3234 	if (!phy_interface_mode_is_rgmii(phy_mode))
3235 		return;
3236 
3237 	of_property_read_u32(port_dn, "rx-internal-delay-ps", &rx_delay);
3238 	of_property_read_u32(port_dn, "tx-internal-delay-ps", &tx_delay);
3239 
3240 	if (rx_delay == -1 && tx_delay == -1) {
3241 		dev_warn(dev->dev,
3242 			 "Port %d interpreting RGMII delay settings based on \"phy-mode\" property, "
3243 			 "please update device tree to specify \"rx-internal-delay-ps\" and "
3244 			 "\"tx-internal-delay-ps\"",
3245 			 port_num);
3246 
3247 		if (phy_mode == PHY_INTERFACE_MODE_RGMII_RXID ||
3248 		    phy_mode == PHY_INTERFACE_MODE_RGMII_ID)
3249 			rx_delay = 2000;
3250 
3251 		if (phy_mode == PHY_INTERFACE_MODE_RGMII_TXID ||
3252 		    phy_mode == PHY_INTERFACE_MODE_RGMII_ID)
3253 			tx_delay = 2000;
3254 	}
3255 
3256 	if (rx_delay < 0)
3257 		rx_delay = 0;
3258 	if (tx_delay < 0)
3259 		tx_delay = 0;
3260 
3261 	dev->ports[port_num].rgmii_rx_val = rx_delay;
3262 	dev->ports[port_num].rgmii_tx_val = tx_delay;
3263 }
3264 
3265 int ksz_switch_register(struct ksz_device *dev)
3266 {
3267 	const struct ksz_chip_data *info;
3268 	struct device_node *port, *ports;
3269 	phy_interface_t interface;
3270 	unsigned int port_num;
3271 	int ret;
3272 	int i;
3273 
3274 	if (dev->pdata)
3275 		dev->chip_id = dev->pdata->chip_id;
3276 
3277 	dev->reset_gpio = devm_gpiod_get_optional(dev->dev, "reset",
3278 						  GPIOD_OUT_LOW);
3279 	if (IS_ERR(dev->reset_gpio))
3280 		return PTR_ERR(dev->reset_gpio);
3281 
3282 	if (dev->reset_gpio) {
3283 		gpiod_set_value_cansleep(dev->reset_gpio, 1);
3284 		usleep_range(10000, 12000);
3285 		gpiod_set_value_cansleep(dev->reset_gpio, 0);
3286 		msleep(100);
3287 	}
3288 
3289 	mutex_init(&dev->dev_mutex);
3290 	mutex_init(&dev->regmap_mutex);
3291 	mutex_init(&dev->alu_mutex);
3292 	mutex_init(&dev->vlan_mutex);
3293 
3294 	ret = ksz_switch_detect(dev);
3295 	if (ret)
3296 		return ret;
3297 
3298 	info = ksz_lookup_info(dev->chip_id);
3299 	if (!info)
3300 		return -ENODEV;
3301 
3302 	/* Update the compatible info with the probed one */
3303 	dev->info = info;
3304 
3305 	dev_info(dev->dev, "found switch: %s, rev %i\n",
3306 		 dev->info->dev_name, dev->chip_rev);
3307 
3308 	ret = ksz_check_device_id(dev);
3309 	if (ret)
3310 		return ret;
3311 
3312 	dev->dev_ops = dev->info->ops;
3313 
3314 	ret = dev->dev_ops->init(dev);
3315 	if (ret)
3316 		return ret;
3317 
3318 	dev->ports = devm_kzalloc(dev->dev,
3319 				  dev->info->port_cnt * sizeof(struct ksz_port),
3320 				  GFP_KERNEL);
3321 	if (!dev->ports)
3322 		return -ENOMEM;
3323 
3324 	for (i = 0; i < dev->info->port_cnt; i++) {
3325 		spin_lock_init(&dev->ports[i].mib.stats64_lock);
3326 		mutex_init(&dev->ports[i].mib.cnt_mutex);
3327 		dev->ports[i].mib.counters =
3328 			devm_kzalloc(dev->dev,
3329 				     sizeof(u64) * (dev->info->mib_cnt + 1),
3330 				     GFP_KERNEL);
3331 		if (!dev->ports[i].mib.counters)
3332 			return -ENOMEM;
3333 
3334 		dev->ports[i].ksz_dev = dev;
3335 		dev->ports[i].num = i;
3336 	}
3337 
3338 	/* set the real number of ports */
3339 	dev->ds->num_ports = dev->info->port_cnt;
3340 
3341 	/* Host port interface will be self detected, or specifically set in
3342 	 * device tree.
3343 	 */
3344 	for (port_num = 0; port_num < dev->info->port_cnt; ++port_num)
3345 		dev->ports[port_num].interface = PHY_INTERFACE_MODE_NA;
3346 	if (dev->dev->of_node) {
3347 		ret = of_get_phy_mode(dev->dev->of_node, &interface);
3348 		if (ret == 0)
3349 			dev->compat_interface = interface;
3350 		ports = of_get_child_by_name(dev->dev->of_node, "ethernet-ports");
3351 		if (!ports)
3352 			ports = of_get_child_by_name(dev->dev->of_node, "ports");
3353 		if (ports) {
3354 			for_each_available_child_of_node(ports, port) {
3355 				if (of_property_read_u32(port, "reg",
3356 							 &port_num))
3357 					continue;
3358 				if (!(dev->port_mask & BIT(port_num))) {
3359 					of_node_put(port);
3360 					of_node_put(ports);
3361 					return -EINVAL;
3362 				}
3363 				of_get_phy_mode(port,
3364 						&dev->ports[port_num].interface);
3365 
3366 				ksz_parse_rgmii_delay(dev, port_num, port);
3367 			}
3368 			of_node_put(ports);
3369 		}
3370 		dev->synclko_125 = of_property_read_bool(dev->dev->of_node,
3371 							 "microchip,synclko-125");
3372 		dev->synclko_disable = of_property_read_bool(dev->dev->of_node,
3373 							     "microchip,synclko-disable");
3374 		if (dev->synclko_125 && dev->synclko_disable) {
3375 			dev_err(dev->dev, "inconsistent synclko settings\n");
3376 			return -EINVAL;
3377 		}
3378 	}
3379 
3380 	ret = dsa_register_switch(dev->ds);
3381 	if (ret) {
3382 		dev->dev_ops->exit(dev);
3383 		return ret;
3384 	}
3385 
3386 	/* Read MIB counters every 30 seconds to avoid overflow. */
3387 	dev->mib_read_interval = msecs_to_jiffies(5000);
3388 
3389 	/* Start the MIB timer. */
3390 	schedule_delayed_work(&dev->mib_read, 0);
3391 
3392 	return ret;
3393 }
3394 EXPORT_SYMBOL(ksz_switch_register);
3395 
3396 void ksz_switch_remove(struct ksz_device *dev)
3397 {
3398 	/* timer started */
3399 	if (dev->mib_read_interval) {
3400 		dev->mib_read_interval = 0;
3401 		cancel_delayed_work_sync(&dev->mib_read);
3402 	}
3403 
3404 	dev->dev_ops->exit(dev);
3405 	dsa_unregister_switch(dev->ds);
3406 
3407 	if (dev->reset_gpio)
3408 		gpiod_set_value_cansleep(dev->reset_gpio, 1);
3409 
3410 }
3411 EXPORT_SYMBOL(ksz_switch_remove);
3412 
3413 MODULE_AUTHOR("Woojung Huh <Woojung.Huh@microchip.com>");
3414 MODULE_DESCRIPTION("Microchip KSZ Series Switch DSA Driver");
3415 MODULE_LICENSE("GPL");
3416