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 MIB_COUNTER_NUM 0x20
36 
37 struct ksz_stats_raw {
38 	u64 rx_hi;
39 	u64 rx_undersize;
40 	u64 rx_fragments;
41 	u64 rx_oversize;
42 	u64 rx_jabbers;
43 	u64 rx_symbol_err;
44 	u64 rx_crc_err;
45 	u64 rx_align_err;
46 	u64 rx_mac_ctrl;
47 	u64 rx_pause;
48 	u64 rx_bcast;
49 	u64 rx_mcast;
50 	u64 rx_ucast;
51 	u64 rx_64_or_less;
52 	u64 rx_65_127;
53 	u64 rx_128_255;
54 	u64 rx_256_511;
55 	u64 rx_512_1023;
56 	u64 rx_1024_1522;
57 	u64 rx_1523_2000;
58 	u64 rx_2001;
59 	u64 tx_hi;
60 	u64 tx_late_col;
61 	u64 tx_pause;
62 	u64 tx_bcast;
63 	u64 tx_mcast;
64 	u64 tx_ucast;
65 	u64 tx_deferred;
66 	u64 tx_total_col;
67 	u64 tx_exc_col;
68 	u64 tx_single_col;
69 	u64 tx_mult_col;
70 	u64 rx_total;
71 	u64 tx_total;
72 	u64 rx_discards;
73 	u64 tx_discards;
74 };
75 
76 struct ksz88xx_stats_raw {
77 	u64 rx;
78 	u64 rx_hi;
79 	u64 rx_undersize;
80 	u64 rx_fragments;
81 	u64 rx_oversize;
82 	u64 rx_jabbers;
83 	u64 rx_symbol_err;
84 	u64 rx_crc_err;
85 	u64 rx_align_err;
86 	u64 rx_mac_ctrl;
87 	u64 rx_pause;
88 	u64 rx_bcast;
89 	u64 rx_mcast;
90 	u64 rx_ucast;
91 	u64 rx_64_or_less;
92 	u64 rx_65_127;
93 	u64 rx_128_255;
94 	u64 rx_256_511;
95 	u64 rx_512_1023;
96 	u64 rx_1024_1522;
97 	u64 tx;
98 	u64 tx_hi;
99 	u64 tx_late_col;
100 	u64 tx_pause;
101 	u64 tx_bcast;
102 	u64 tx_mcast;
103 	u64 tx_ucast;
104 	u64 tx_deferred;
105 	u64 tx_total_col;
106 	u64 tx_exc_col;
107 	u64 tx_single_col;
108 	u64 tx_mult_col;
109 	u64 rx_discards;
110 	u64 tx_discards;
111 };
112 
113 static const struct ksz_mib_names ksz88xx_mib_names[] = {
114 	{ 0x00, "rx" },
115 	{ 0x01, "rx_hi" },
116 	{ 0x02, "rx_undersize" },
117 	{ 0x03, "rx_fragments" },
118 	{ 0x04, "rx_oversize" },
119 	{ 0x05, "rx_jabbers" },
120 	{ 0x06, "rx_symbol_err" },
121 	{ 0x07, "rx_crc_err" },
122 	{ 0x08, "rx_align_err" },
123 	{ 0x09, "rx_mac_ctrl" },
124 	{ 0x0a, "rx_pause" },
125 	{ 0x0b, "rx_bcast" },
126 	{ 0x0c, "rx_mcast" },
127 	{ 0x0d, "rx_ucast" },
128 	{ 0x0e, "rx_64_or_less" },
129 	{ 0x0f, "rx_65_127" },
130 	{ 0x10, "rx_128_255" },
131 	{ 0x11, "rx_256_511" },
132 	{ 0x12, "rx_512_1023" },
133 	{ 0x13, "rx_1024_1522" },
134 	{ 0x14, "tx" },
135 	{ 0x15, "tx_hi" },
136 	{ 0x16, "tx_late_col" },
137 	{ 0x17, "tx_pause" },
138 	{ 0x18, "tx_bcast" },
139 	{ 0x19, "tx_mcast" },
140 	{ 0x1a, "tx_ucast" },
141 	{ 0x1b, "tx_deferred" },
142 	{ 0x1c, "tx_total_col" },
143 	{ 0x1d, "tx_exc_col" },
144 	{ 0x1e, "tx_single_col" },
145 	{ 0x1f, "tx_mult_col" },
146 	{ 0x100, "rx_discards" },
147 	{ 0x101, "tx_discards" },
148 };
149 
150 static const struct ksz_mib_names ksz9477_mib_names[] = {
151 	{ 0x00, "rx_hi" },
152 	{ 0x01, "rx_undersize" },
153 	{ 0x02, "rx_fragments" },
154 	{ 0x03, "rx_oversize" },
155 	{ 0x04, "rx_jabbers" },
156 	{ 0x05, "rx_symbol_err" },
157 	{ 0x06, "rx_crc_err" },
158 	{ 0x07, "rx_align_err" },
159 	{ 0x08, "rx_mac_ctrl" },
160 	{ 0x09, "rx_pause" },
161 	{ 0x0A, "rx_bcast" },
162 	{ 0x0B, "rx_mcast" },
163 	{ 0x0C, "rx_ucast" },
164 	{ 0x0D, "rx_64_or_less" },
165 	{ 0x0E, "rx_65_127" },
166 	{ 0x0F, "rx_128_255" },
167 	{ 0x10, "rx_256_511" },
168 	{ 0x11, "rx_512_1023" },
169 	{ 0x12, "rx_1024_1522" },
170 	{ 0x13, "rx_1523_2000" },
171 	{ 0x14, "rx_2001" },
172 	{ 0x15, "tx_hi" },
173 	{ 0x16, "tx_late_col" },
174 	{ 0x17, "tx_pause" },
175 	{ 0x18, "tx_bcast" },
176 	{ 0x19, "tx_mcast" },
177 	{ 0x1A, "tx_ucast" },
178 	{ 0x1B, "tx_deferred" },
179 	{ 0x1C, "tx_total_col" },
180 	{ 0x1D, "tx_exc_col" },
181 	{ 0x1E, "tx_single_col" },
182 	{ 0x1F, "tx_mult_col" },
183 	{ 0x80, "rx_total" },
184 	{ 0x81, "tx_total" },
185 	{ 0x82, "rx_discards" },
186 	{ 0x83, "tx_discards" },
187 };
188 
189 static const struct ksz_dev_ops ksz8_dev_ops = {
190 	.setup = ksz8_setup,
191 	.get_port_addr = ksz8_get_port_addr,
192 	.cfg_port_member = ksz8_cfg_port_member,
193 	.flush_dyn_mac_table = ksz8_flush_dyn_mac_table,
194 	.port_setup = ksz8_port_setup,
195 	.r_phy = ksz8_r_phy,
196 	.w_phy = ksz8_w_phy,
197 	.r_mib_cnt = ksz8_r_mib_cnt,
198 	.r_mib_pkt = ksz8_r_mib_pkt,
199 	.r_mib_stat64 = ksz88xx_r_mib_stats64,
200 	.freeze_mib = ksz8_freeze_mib,
201 	.port_init_cnt = ksz8_port_init_cnt,
202 	.fdb_dump = ksz8_fdb_dump,
203 	.fdb_add = ksz8_fdb_add,
204 	.fdb_del = ksz8_fdb_del,
205 	.mdb_add = ksz8_mdb_add,
206 	.mdb_del = ksz8_mdb_del,
207 	.vlan_filtering = ksz8_port_vlan_filtering,
208 	.vlan_add = ksz8_port_vlan_add,
209 	.vlan_del = ksz8_port_vlan_del,
210 	.mirror_add = ksz8_port_mirror_add,
211 	.mirror_del = ksz8_port_mirror_del,
212 	.get_caps = ksz8_get_caps,
213 	.config_cpu_port = ksz8_config_cpu_port,
214 	.enable_stp_addr = ksz8_enable_stp_addr,
215 	.reset = ksz8_reset_switch,
216 	.init = ksz8_switch_init,
217 	.exit = ksz8_switch_exit,
218 	.change_mtu = ksz8_change_mtu,
219 };
220 
221 static void ksz9477_phylink_mac_link_up(struct ksz_device *dev, int port,
222 					unsigned int mode,
223 					phy_interface_t interface,
224 					struct phy_device *phydev, int speed,
225 					int duplex, bool tx_pause,
226 					bool rx_pause);
227 
228 static const struct ksz_dev_ops ksz9477_dev_ops = {
229 	.setup = ksz9477_setup,
230 	.get_port_addr = ksz9477_get_port_addr,
231 	.cfg_port_member = ksz9477_cfg_port_member,
232 	.flush_dyn_mac_table = ksz9477_flush_dyn_mac_table,
233 	.port_setup = ksz9477_port_setup,
234 	.set_ageing_time = ksz9477_set_ageing_time,
235 	.r_phy = ksz9477_r_phy,
236 	.w_phy = ksz9477_w_phy,
237 	.r_mib_cnt = ksz9477_r_mib_cnt,
238 	.r_mib_pkt = ksz9477_r_mib_pkt,
239 	.r_mib_stat64 = ksz_r_mib_stats64,
240 	.freeze_mib = ksz9477_freeze_mib,
241 	.port_init_cnt = ksz9477_port_init_cnt,
242 	.vlan_filtering = ksz9477_port_vlan_filtering,
243 	.vlan_add = ksz9477_port_vlan_add,
244 	.vlan_del = ksz9477_port_vlan_del,
245 	.mirror_add = ksz9477_port_mirror_add,
246 	.mirror_del = ksz9477_port_mirror_del,
247 	.get_caps = ksz9477_get_caps,
248 	.fdb_dump = ksz9477_fdb_dump,
249 	.fdb_add = ksz9477_fdb_add,
250 	.fdb_del = ksz9477_fdb_del,
251 	.mdb_add = ksz9477_mdb_add,
252 	.mdb_del = ksz9477_mdb_del,
253 	.change_mtu = ksz9477_change_mtu,
254 	.phylink_mac_link_up = ksz9477_phylink_mac_link_up,
255 	.config_cpu_port = ksz9477_config_cpu_port,
256 	.tc_cbs_set_cinc = ksz9477_tc_cbs_set_cinc,
257 	.enable_stp_addr = ksz9477_enable_stp_addr,
258 	.reset = ksz9477_reset_switch,
259 	.init = ksz9477_switch_init,
260 	.exit = ksz9477_switch_exit,
261 };
262 
263 static const struct ksz_dev_ops lan937x_dev_ops = {
264 	.setup = lan937x_setup,
265 	.teardown = lan937x_teardown,
266 	.get_port_addr = ksz9477_get_port_addr,
267 	.cfg_port_member = ksz9477_cfg_port_member,
268 	.flush_dyn_mac_table = ksz9477_flush_dyn_mac_table,
269 	.port_setup = lan937x_port_setup,
270 	.set_ageing_time = lan937x_set_ageing_time,
271 	.r_phy = lan937x_r_phy,
272 	.w_phy = lan937x_w_phy,
273 	.r_mib_cnt = ksz9477_r_mib_cnt,
274 	.r_mib_pkt = ksz9477_r_mib_pkt,
275 	.r_mib_stat64 = ksz_r_mib_stats64,
276 	.freeze_mib = ksz9477_freeze_mib,
277 	.port_init_cnt = ksz9477_port_init_cnt,
278 	.vlan_filtering = ksz9477_port_vlan_filtering,
279 	.vlan_add = ksz9477_port_vlan_add,
280 	.vlan_del = ksz9477_port_vlan_del,
281 	.mirror_add = ksz9477_port_mirror_add,
282 	.mirror_del = ksz9477_port_mirror_del,
283 	.get_caps = lan937x_phylink_get_caps,
284 	.setup_rgmii_delay = lan937x_setup_rgmii_delay,
285 	.fdb_dump = ksz9477_fdb_dump,
286 	.fdb_add = ksz9477_fdb_add,
287 	.fdb_del = ksz9477_fdb_del,
288 	.mdb_add = ksz9477_mdb_add,
289 	.mdb_del = ksz9477_mdb_del,
290 	.change_mtu = lan937x_change_mtu,
291 	.phylink_mac_link_up = ksz9477_phylink_mac_link_up,
292 	.config_cpu_port = lan937x_config_cpu_port,
293 	.tc_cbs_set_cinc = lan937x_tc_cbs_set_cinc,
294 	.enable_stp_addr = ksz9477_enable_stp_addr,
295 	.reset = lan937x_reset_switch,
296 	.init = lan937x_switch_init,
297 	.exit = lan937x_switch_exit,
298 };
299 
300 static const u16 ksz8795_regs[] = {
301 	[REG_IND_CTRL_0]		= 0x6E,
302 	[REG_IND_DATA_8]		= 0x70,
303 	[REG_IND_DATA_CHECK]		= 0x72,
304 	[REG_IND_DATA_HI]		= 0x71,
305 	[REG_IND_DATA_LO]		= 0x75,
306 	[REG_IND_MIB_CHECK]		= 0x74,
307 	[REG_IND_BYTE]			= 0xA0,
308 	[P_FORCE_CTRL]			= 0x0C,
309 	[P_LINK_STATUS]			= 0x0E,
310 	[P_LOCAL_CTRL]			= 0x07,
311 	[P_NEG_RESTART_CTRL]		= 0x0D,
312 	[P_REMOTE_STATUS]		= 0x08,
313 	[P_SPEED_STATUS]		= 0x09,
314 	[S_TAIL_TAG_CTRL]		= 0x0C,
315 	[P_STP_CTRL]			= 0x02,
316 	[S_START_CTRL]			= 0x01,
317 	[S_BROADCAST_CTRL]		= 0x06,
318 	[S_MULTICAST_CTRL]		= 0x04,
319 	[P_XMII_CTRL_0]			= 0x06,
320 	[P_XMII_CTRL_1]			= 0x06,
321 };
322 
323 static const u32 ksz8795_masks[] = {
324 	[PORT_802_1P_REMAPPING]		= BIT(7),
325 	[SW_TAIL_TAG_ENABLE]		= BIT(1),
326 	[MIB_COUNTER_OVERFLOW]		= BIT(6),
327 	[MIB_COUNTER_VALID]		= BIT(5),
328 	[VLAN_TABLE_FID]		= GENMASK(6, 0),
329 	[VLAN_TABLE_MEMBERSHIP]		= GENMASK(11, 7),
330 	[VLAN_TABLE_VALID]		= BIT(12),
331 	[STATIC_MAC_TABLE_VALID]	= BIT(21),
332 	[STATIC_MAC_TABLE_USE_FID]	= BIT(23),
333 	[STATIC_MAC_TABLE_FID]		= GENMASK(30, 24),
334 	[STATIC_MAC_TABLE_OVERRIDE]	= BIT(26),
335 	[STATIC_MAC_TABLE_FWD_PORTS]	= GENMASK(24, 20),
336 	[DYNAMIC_MAC_TABLE_ENTRIES_H]	= GENMASK(6, 0),
337 	[DYNAMIC_MAC_TABLE_MAC_EMPTY]	= BIT(8),
338 	[DYNAMIC_MAC_TABLE_NOT_READY]	= BIT(7),
339 	[DYNAMIC_MAC_TABLE_ENTRIES]	= GENMASK(31, 29),
340 	[DYNAMIC_MAC_TABLE_FID]		= GENMASK(26, 20),
341 	[DYNAMIC_MAC_TABLE_SRC_PORT]	= GENMASK(26, 24),
342 	[DYNAMIC_MAC_TABLE_TIMESTAMP]	= GENMASK(28, 27),
343 	[P_MII_TX_FLOW_CTRL]		= BIT(5),
344 	[P_MII_RX_FLOW_CTRL]		= BIT(5),
345 };
346 
347 static const u8 ksz8795_xmii_ctrl0[] = {
348 	[P_MII_100MBIT]			= 0,
349 	[P_MII_10MBIT]			= 1,
350 	[P_MII_FULL_DUPLEX]		= 0,
351 	[P_MII_HALF_DUPLEX]		= 1,
352 };
353 
354 static const u8 ksz8795_xmii_ctrl1[] = {
355 	[P_RGMII_SEL]			= 3,
356 	[P_GMII_SEL]			= 2,
357 	[P_RMII_SEL]			= 1,
358 	[P_MII_SEL]			= 0,
359 	[P_GMII_1GBIT]			= 1,
360 	[P_GMII_NOT_1GBIT]		= 0,
361 };
362 
363 static const u8 ksz8795_shifts[] = {
364 	[VLAN_TABLE_MEMBERSHIP_S]	= 7,
365 	[VLAN_TABLE]			= 16,
366 	[STATIC_MAC_FWD_PORTS]		= 16,
367 	[STATIC_MAC_FID]		= 24,
368 	[DYNAMIC_MAC_ENTRIES_H]		= 3,
369 	[DYNAMIC_MAC_ENTRIES]		= 29,
370 	[DYNAMIC_MAC_FID]		= 16,
371 	[DYNAMIC_MAC_TIMESTAMP]		= 27,
372 	[DYNAMIC_MAC_SRC_PORT]		= 24,
373 };
374 
375 static const u16 ksz8863_regs[] = {
376 	[REG_IND_CTRL_0]		= 0x79,
377 	[REG_IND_DATA_8]		= 0x7B,
378 	[REG_IND_DATA_CHECK]		= 0x7B,
379 	[REG_IND_DATA_HI]		= 0x7C,
380 	[REG_IND_DATA_LO]		= 0x80,
381 	[REG_IND_MIB_CHECK]		= 0x80,
382 	[P_FORCE_CTRL]			= 0x0C,
383 	[P_LINK_STATUS]			= 0x0E,
384 	[P_LOCAL_CTRL]			= 0x0C,
385 	[P_NEG_RESTART_CTRL]		= 0x0D,
386 	[P_REMOTE_STATUS]		= 0x0E,
387 	[P_SPEED_STATUS]		= 0x0F,
388 	[S_TAIL_TAG_CTRL]		= 0x03,
389 	[P_STP_CTRL]			= 0x02,
390 	[S_START_CTRL]			= 0x01,
391 	[S_BROADCAST_CTRL]		= 0x06,
392 	[S_MULTICAST_CTRL]		= 0x04,
393 };
394 
395 static const u32 ksz8863_masks[] = {
396 	[PORT_802_1P_REMAPPING]		= BIT(3),
397 	[SW_TAIL_TAG_ENABLE]		= BIT(6),
398 	[MIB_COUNTER_OVERFLOW]		= BIT(7),
399 	[MIB_COUNTER_VALID]		= BIT(6),
400 	[VLAN_TABLE_FID]		= GENMASK(15, 12),
401 	[VLAN_TABLE_MEMBERSHIP]		= GENMASK(18, 16),
402 	[VLAN_TABLE_VALID]		= BIT(19),
403 	[STATIC_MAC_TABLE_VALID]	= BIT(19),
404 	[STATIC_MAC_TABLE_USE_FID]	= BIT(21),
405 	[STATIC_MAC_TABLE_FID]		= GENMASK(25, 22),
406 	[STATIC_MAC_TABLE_OVERRIDE]	= BIT(20),
407 	[STATIC_MAC_TABLE_FWD_PORTS]	= GENMASK(18, 16),
408 	[DYNAMIC_MAC_TABLE_ENTRIES_H]	= GENMASK(1, 0),
409 	[DYNAMIC_MAC_TABLE_MAC_EMPTY]	= BIT(2),
410 	[DYNAMIC_MAC_TABLE_NOT_READY]	= BIT(7),
411 	[DYNAMIC_MAC_TABLE_ENTRIES]	= GENMASK(31, 24),
412 	[DYNAMIC_MAC_TABLE_FID]		= GENMASK(19, 16),
413 	[DYNAMIC_MAC_TABLE_SRC_PORT]	= GENMASK(21, 20),
414 	[DYNAMIC_MAC_TABLE_TIMESTAMP]	= GENMASK(23, 22),
415 };
416 
417 static u8 ksz8863_shifts[] = {
418 	[VLAN_TABLE_MEMBERSHIP_S]	= 16,
419 	[STATIC_MAC_FWD_PORTS]		= 16,
420 	[STATIC_MAC_FID]		= 22,
421 	[DYNAMIC_MAC_ENTRIES_H]		= 8,
422 	[DYNAMIC_MAC_ENTRIES]		= 24,
423 	[DYNAMIC_MAC_FID]		= 16,
424 	[DYNAMIC_MAC_TIMESTAMP]		= 22,
425 	[DYNAMIC_MAC_SRC_PORT]		= 20,
426 };
427 
428 static const u16 ksz9477_regs[] = {
429 	[P_STP_CTRL]			= 0x0B04,
430 	[S_START_CTRL]			= 0x0300,
431 	[S_BROADCAST_CTRL]		= 0x0332,
432 	[S_MULTICAST_CTRL]		= 0x0331,
433 	[P_XMII_CTRL_0]			= 0x0300,
434 	[P_XMII_CTRL_1]			= 0x0301,
435 };
436 
437 static const u32 ksz9477_masks[] = {
438 	[ALU_STAT_WRITE]		= 0,
439 	[ALU_STAT_READ]			= 1,
440 	[P_MII_TX_FLOW_CTRL]		= BIT(5),
441 	[P_MII_RX_FLOW_CTRL]		= BIT(3),
442 };
443 
444 static const u8 ksz9477_shifts[] = {
445 	[ALU_STAT_INDEX]		= 16,
446 };
447 
448 static const u8 ksz9477_xmii_ctrl0[] = {
449 	[P_MII_100MBIT]			= 1,
450 	[P_MII_10MBIT]			= 0,
451 	[P_MII_FULL_DUPLEX]		= 1,
452 	[P_MII_HALF_DUPLEX]		= 0,
453 };
454 
455 static const u8 ksz9477_xmii_ctrl1[] = {
456 	[P_RGMII_SEL]			= 0,
457 	[P_RMII_SEL]			= 1,
458 	[P_GMII_SEL]			= 2,
459 	[P_MII_SEL]			= 3,
460 	[P_GMII_1GBIT]			= 0,
461 	[P_GMII_NOT_1GBIT]		= 1,
462 };
463 
464 static const u32 lan937x_masks[] = {
465 	[ALU_STAT_WRITE]		= 1,
466 	[ALU_STAT_READ]			= 2,
467 	[P_MII_TX_FLOW_CTRL]		= BIT(5),
468 	[P_MII_RX_FLOW_CTRL]		= BIT(3),
469 };
470 
471 static const u8 lan937x_shifts[] = {
472 	[ALU_STAT_INDEX]		= 8,
473 };
474 
475 static const struct regmap_range ksz8563_valid_regs[] = {
476 	regmap_reg_range(0x0000, 0x0003),
477 	regmap_reg_range(0x0006, 0x0006),
478 	regmap_reg_range(0x000f, 0x001f),
479 	regmap_reg_range(0x0100, 0x0100),
480 	regmap_reg_range(0x0104, 0x0107),
481 	regmap_reg_range(0x010d, 0x010d),
482 	regmap_reg_range(0x0110, 0x0113),
483 	regmap_reg_range(0x0120, 0x012b),
484 	regmap_reg_range(0x0201, 0x0201),
485 	regmap_reg_range(0x0210, 0x0213),
486 	regmap_reg_range(0x0300, 0x0300),
487 	regmap_reg_range(0x0302, 0x031b),
488 	regmap_reg_range(0x0320, 0x032b),
489 	regmap_reg_range(0x0330, 0x0336),
490 	regmap_reg_range(0x0338, 0x033e),
491 	regmap_reg_range(0x0340, 0x035f),
492 	regmap_reg_range(0x0370, 0x0370),
493 	regmap_reg_range(0x0378, 0x0378),
494 	regmap_reg_range(0x037c, 0x037d),
495 	regmap_reg_range(0x0390, 0x0393),
496 	regmap_reg_range(0x0400, 0x040e),
497 	regmap_reg_range(0x0410, 0x042f),
498 	regmap_reg_range(0x0500, 0x0519),
499 	regmap_reg_range(0x0520, 0x054b),
500 	regmap_reg_range(0x0550, 0x05b3),
501 
502 	/* port 1 */
503 	regmap_reg_range(0x1000, 0x1001),
504 	regmap_reg_range(0x1004, 0x100b),
505 	regmap_reg_range(0x1013, 0x1013),
506 	regmap_reg_range(0x1017, 0x1017),
507 	regmap_reg_range(0x101b, 0x101b),
508 	regmap_reg_range(0x101f, 0x1021),
509 	regmap_reg_range(0x1030, 0x1030),
510 	regmap_reg_range(0x1100, 0x1111),
511 	regmap_reg_range(0x111a, 0x111d),
512 	regmap_reg_range(0x1122, 0x1127),
513 	regmap_reg_range(0x112a, 0x112b),
514 	regmap_reg_range(0x1136, 0x1139),
515 	regmap_reg_range(0x113e, 0x113f),
516 	regmap_reg_range(0x1400, 0x1401),
517 	regmap_reg_range(0x1403, 0x1403),
518 	regmap_reg_range(0x1410, 0x1417),
519 	regmap_reg_range(0x1420, 0x1423),
520 	regmap_reg_range(0x1500, 0x1507),
521 	regmap_reg_range(0x1600, 0x1612),
522 	regmap_reg_range(0x1800, 0x180f),
523 	regmap_reg_range(0x1900, 0x1907),
524 	regmap_reg_range(0x1914, 0x191b),
525 	regmap_reg_range(0x1a00, 0x1a03),
526 	regmap_reg_range(0x1a04, 0x1a08),
527 	regmap_reg_range(0x1b00, 0x1b01),
528 	regmap_reg_range(0x1b04, 0x1b04),
529 	regmap_reg_range(0x1c00, 0x1c05),
530 	regmap_reg_range(0x1c08, 0x1c1b),
531 
532 	/* port 2 */
533 	regmap_reg_range(0x2000, 0x2001),
534 	regmap_reg_range(0x2004, 0x200b),
535 	regmap_reg_range(0x2013, 0x2013),
536 	regmap_reg_range(0x2017, 0x2017),
537 	regmap_reg_range(0x201b, 0x201b),
538 	regmap_reg_range(0x201f, 0x2021),
539 	regmap_reg_range(0x2030, 0x2030),
540 	regmap_reg_range(0x2100, 0x2111),
541 	regmap_reg_range(0x211a, 0x211d),
542 	regmap_reg_range(0x2122, 0x2127),
543 	regmap_reg_range(0x212a, 0x212b),
544 	regmap_reg_range(0x2136, 0x2139),
545 	regmap_reg_range(0x213e, 0x213f),
546 	regmap_reg_range(0x2400, 0x2401),
547 	regmap_reg_range(0x2403, 0x2403),
548 	regmap_reg_range(0x2410, 0x2417),
549 	regmap_reg_range(0x2420, 0x2423),
550 	regmap_reg_range(0x2500, 0x2507),
551 	regmap_reg_range(0x2600, 0x2612),
552 	regmap_reg_range(0x2800, 0x280f),
553 	regmap_reg_range(0x2900, 0x2907),
554 	regmap_reg_range(0x2914, 0x291b),
555 	regmap_reg_range(0x2a00, 0x2a03),
556 	regmap_reg_range(0x2a04, 0x2a08),
557 	regmap_reg_range(0x2b00, 0x2b01),
558 	regmap_reg_range(0x2b04, 0x2b04),
559 	regmap_reg_range(0x2c00, 0x2c05),
560 	regmap_reg_range(0x2c08, 0x2c1b),
561 
562 	/* port 3 */
563 	regmap_reg_range(0x3000, 0x3001),
564 	regmap_reg_range(0x3004, 0x300b),
565 	regmap_reg_range(0x3013, 0x3013),
566 	regmap_reg_range(0x3017, 0x3017),
567 	regmap_reg_range(0x301b, 0x301b),
568 	regmap_reg_range(0x301f, 0x3021),
569 	regmap_reg_range(0x3030, 0x3030),
570 	regmap_reg_range(0x3300, 0x3301),
571 	regmap_reg_range(0x3303, 0x3303),
572 	regmap_reg_range(0x3400, 0x3401),
573 	regmap_reg_range(0x3403, 0x3403),
574 	regmap_reg_range(0x3410, 0x3417),
575 	regmap_reg_range(0x3420, 0x3423),
576 	regmap_reg_range(0x3500, 0x3507),
577 	regmap_reg_range(0x3600, 0x3612),
578 	regmap_reg_range(0x3800, 0x380f),
579 	regmap_reg_range(0x3900, 0x3907),
580 	regmap_reg_range(0x3914, 0x391b),
581 	regmap_reg_range(0x3a00, 0x3a03),
582 	regmap_reg_range(0x3a04, 0x3a08),
583 	regmap_reg_range(0x3b00, 0x3b01),
584 	regmap_reg_range(0x3b04, 0x3b04),
585 	regmap_reg_range(0x3c00, 0x3c05),
586 	regmap_reg_range(0x3c08, 0x3c1b),
587 };
588 
589 static const struct regmap_access_table ksz8563_register_set = {
590 	.yes_ranges = ksz8563_valid_regs,
591 	.n_yes_ranges = ARRAY_SIZE(ksz8563_valid_regs),
592 };
593 
594 static const struct regmap_range ksz9477_valid_regs[] = {
595 	regmap_reg_range(0x0000, 0x0003),
596 	regmap_reg_range(0x0006, 0x0006),
597 	regmap_reg_range(0x0010, 0x001f),
598 	regmap_reg_range(0x0100, 0x0100),
599 	regmap_reg_range(0x0103, 0x0107),
600 	regmap_reg_range(0x010d, 0x010d),
601 	regmap_reg_range(0x0110, 0x0113),
602 	regmap_reg_range(0x0120, 0x012b),
603 	regmap_reg_range(0x0201, 0x0201),
604 	regmap_reg_range(0x0210, 0x0213),
605 	regmap_reg_range(0x0300, 0x0300),
606 	regmap_reg_range(0x0302, 0x031b),
607 	regmap_reg_range(0x0320, 0x032b),
608 	regmap_reg_range(0x0330, 0x0336),
609 	regmap_reg_range(0x0338, 0x033b),
610 	regmap_reg_range(0x033e, 0x033e),
611 	regmap_reg_range(0x0340, 0x035f),
612 	regmap_reg_range(0x0370, 0x0370),
613 	regmap_reg_range(0x0378, 0x0378),
614 	regmap_reg_range(0x037c, 0x037d),
615 	regmap_reg_range(0x0390, 0x0393),
616 	regmap_reg_range(0x0400, 0x040e),
617 	regmap_reg_range(0x0410, 0x042f),
618 	regmap_reg_range(0x0444, 0x044b),
619 	regmap_reg_range(0x0450, 0x046f),
620 	regmap_reg_range(0x0500, 0x0519),
621 	regmap_reg_range(0x0520, 0x054b),
622 	regmap_reg_range(0x0550, 0x05b3),
623 	regmap_reg_range(0x0604, 0x060b),
624 	regmap_reg_range(0x0610, 0x0612),
625 	regmap_reg_range(0x0614, 0x062c),
626 	regmap_reg_range(0x0640, 0x0645),
627 	regmap_reg_range(0x0648, 0x064d),
628 
629 	/* port 1 */
630 	regmap_reg_range(0x1000, 0x1001),
631 	regmap_reg_range(0x1013, 0x1013),
632 	regmap_reg_range(0x1017, 0x1017),
633 	regmap_reg_range(0x101b, 0x101b),
634 	regmap_reg_range(0x101f, 0x1020),
635 	regmap_reg_range(0x1030, 0x1030),
636 	regmap_reg_range(0x1100, 0x1115),
637 	regmap_reg_range(0x111a, 0x111f),
638 	regmap_reg_range(0x1122, 0x1127),
639 	regmap_reg_range(0x112a, 0x112b),
640 	regmap_reg_range(0x1136, 0x1139),
641 	regmap_reg_range(0x113e, 0x113f),
642 	regmap_reg_range(0x1400, 0x1401),
643 	regmap_reg_range(0x1403, 0x1403),
644 	regmap_reg_range(0x1410, 0x1417),
645 	regmap_reg_range(0x1420, 0x1423),
646 	regmap_reg_range(0x1500, 0x1507),
647 	regmap_reg_range(0x1600, 0x1613),
648 	regmap_reg_range(0x1800, 0x180f),
649 	regmap_reg_range(0x1820, 0x1827),
650 	regmap_reg_range(0x1830, 0x1837),
651 	regmap_reg_range(0x1840, 0x184b),
652 	regmap_reg_range(0x1900, 0x1907),
653 	regmap_reg_range(0x1914, 0x191b),
654 	regmap_reg_range(0x1920, 0x1920),
655 	regmap_reg_range(0x1923, 0x1927),
656 	regmap_reg_range(0x1a00, 0x1a03),
657 	regmap_reg_range(0x1a04, 0x1a07),
658 	regmap_reg_range(0x1b00, 0x1b01),
659 	regmap_reg_range(0x1b04, 0x1b04),
660 	regmap_reg_range(0x1c00, 0x1c05),
661 	regmap_reg_range(0x1c08, 0x1c1b),
662 
663 	/* port 2 */
664 	regmap_reg_range(0x2000, 0x2001),
665 	regmap_reg_range(0x2013, 0x2013),
666 	regmap_reg_range(0x2017, 0x2017),
667 	regmap_reg_range(0x201b, 0x201b),
668 	regmap_reg_range(0x201f, 0x2020),
669 	regmap_reg_range(0x2030, 0x2030),
670 	regmap_reg_range(0x2100, 0x2115),
671 	regmap_reg_range(0x211a, 0x211f),
672 	regmap_reg_range(0x2122, 0x2127),
673 	regmap_reg_range(0x212a, 0x212b),
674 	regmap_reg_range(0x2136, 0x2139),
675 	regmap_reg_range(0x213e, 0x213f),
676 	regmap_reg_range(0x2400, 0x2401),
677 	regmap_reg_range(0x2403, 0x2403),
678 	regmap_reg_range(0x2410, 0x2417),
679 	regmap_reg_range(0x2420, 0x2423),
680 	regmap_reg_range(0x2500, 0x2507),
681 	regmap_reg_range(0x2600, 0x2613),
682 	regmap_reg_range(0x2800, 0x280f),
683 	regmap_reg_range(0x2820, 0x2827),
684 	regmap_reg_range(0x2830, 0x2837),
685 	regmap_reg_range(0x2840, 0x284b),
686 	regmap_reg_range(0x2900, 0x2907),
687 	regmap_reg_range(0x2914, 0x291b),
688 	regmap_reg_range(0x2920, 0x2920),
689 	regmap_reg_range(0x2923, 0x2927),
690 	regmap_reg_range(0x2a00, 0x2a03),
691 	regmap_reg_range(0x2a04, 0x2a07),
692 	regmap_reg_range(0x2b00, 0x2b01),
693 	regmap_reg_range(0x2b04, 0x2b04),
694 	regmap_reg_range(0x2c00, 0x2c05),
695 	regmap_reg_range(0x2c08, 0x2c1b),
696 
697 	/* port 3 */
698 	regmap_reg_range(0x3000, 0x3001),
699 	regmap_reg_range(0x3013, 0x3013),
700 	regmap_reg_range(0x3017, 0x3017),
701 	regmap_reg_range(0x301b, 0x301b),
702 	regmap_reg_range(0x301f, 0x3020),
703 	regmap_reg_range(0x3030, 0x3030),
704 	regmap_reg_range(0x3100, 0x3115),
705 	regmap_reg_range(0x311a, 0x311f),
706 	regmap_reg_range(0x3122, 0x3127),
707 	regmap_reg_range(0x312a, 0x312b),
708 	regmap_reg_range(0x3136, 0x3139),
709 	regmap_reg_range(0x313e, 0x313f),
710 	regmap_reg_range(0x3400, 0x3401),
711 	regmap_reg_range(0x3403, 0x3403),
712 	regmap_reg_range(0x3410, 0x3417),
713 	regmap_reg_range(0x3420, 0x3423),
714 	regmap_reg_range(0x3500, 0x3507),
715 	regmap_reg_range(0x3600, 0x3613),
716 	regmap_reg_range(0x3800, 0x380f),
717 	regmap_reg_range(0x3820, 0x3827),
718 	regmap_reg_range(0x3830, 0x3837),
719 	regmap_reg_range(0x3840, 0x384b),
720 	regmap_reg_range(0x3900, 0x3907),
721 	regmap_reg_range(0x3914, 0x391b),
722 	regmap_reg_range(0x3920, 0x3920),
723 	regmap_reg_range(0x3923, 0x3927),
724 	regmap_reg_range(0x3a00, 0x3a03),
725 	regmap_reg_range(0x3a04, 0x3a07),
726 	regmap_reg_range(0x3b00, 0x3b01),
727 	regmap_reg_range(0x3b04, 0x3b04),
728 	regmap_reg_range(0x3c00, 0x3c05),
729 	regmap_reg_range(0x3c08, 0x3c1b),
730 
731 	/* port 4 */
732 	regmap_reg_range(0x4000, 0x4001),
733 	regmap_reg_range(0x4013, 0x4013),
734 	regmap_reg_range(0x4017, 0x4017),
735 	regmap_reg_range(0x401b, 0x401b),
736 	regmap_reg_range(0x401f, 0x4020),
737 	regmap_reg_range(0x4030, 0x4030),
738 	regmap_reg_range(0x4100, 0x4115),
739 	regmap_reg_range(0x411a, 0x411f),
740 	regmap_reg_range(0x4122, 0x4127),
741 	regmap_reg_range(0x412a, 0x412b),
742 	regmap_reg_range(0x4136, 0x4139),
743 	regmap_reg_range(0x413e, 0x413f),
744 	regmap_reg_range(0x4400, 0x4401),
745 	regmap_reg_range(0x4403, 0x4403),
746 	regmap_reg_range(0x4410, 0x4417),
747 	regmap_reg_range(0x4420, 0x4423),
748 	regmap_reg_range(0x4500, 0x4507),
749 	regmap_reg_range(0x4600, 0x4613),
750 	regmap_reg_range(0x4800, 0x480f),
751 	regmap_reg_range(0x4820, 0x4827),
752 	regmap_reg_range(0x4830, 0x4837),
753 	regmap_reg_range(0x4840, 0x484b),
754 	regmap_reg_range(0x4900, 0x4907),
755 	regmap_reg_range(0x4914, 0x491b),
756 	regmap_reg_range(0x4920, 0x4920),
757 	regmap_reg_range(0x4923, 0x4927),
758 	regmap_reg_range(0x4a00, 0x4a03),
759 	regmap_reg_range(0x4a04, 0x4a07),
760 	regmap_reg_range(0x4b00, 0x4b01),
761 	regmap_reg_range(0x4b04, 0x4b04),
762 	regmap_reg_range(0x4c00, 0x4c05),
763 	regmap_reg_range(0x4c08, 0x4c1b),
764 
765 	/* port 5 */
766 	regmap_reg_range(0x5000, 0x5001),
767 	regmap_reg_range(0x5013, 0x5013),
768 	regmap_reg_range(0x5017, 0x5017),
769 	regmap_reg_range(0x501b, 0x501b),
770 	regmap_reg_range(0x501f, 0x5020),
771 	regmap_reg_range(0x5030, 0x5030),
772 	regmap_reg_range(0x5100, 0x5115),
773 	regmap_reg_range(0x511a, 0x511f),
774 	regmap_reg_range(0x5122, 0x5127),
775 	regmap_reg_range(0x512a, 0x512b),
776 	regmap_reg_range(0x5136, 0x5139),
777 	regmap_reg_range(0x513e, 0x513f),
778 	regmap_reg_range(0x5400, 0x5401),
779 	regmap_reg_range(0x5403, 0x5403),
780 	regmap_reg_range(0x5410, 0x5417),
781 	regmap_reg_range(0x5420, 0x5423),
782 	regmap_reg_range(0x5500, 0x5507),
783 	regmap_reg_range(0x5600, 0x5613),
784 	regmap_reg_range(0x5800, 0x580f),
785 	regmap_reg_range(0x5820, 0x5827),
786 	regmap_reg_range(0x5830, 0x5837),
787 	regmap_reg_range(0x5840, 0x584b),
788 	regmap_reg_range(0x5900, 0x5907),
789 	regmap_reg_range(0x5914, 0x591b),
790 	regmap_reg_range(0x5920, 0x5920),
791 	regmap_reg_range(0x5923, 0x5927),
792 	regmap_reg_range(0x5a00, 0x5a03),
793 	regmap_reg_range(0x5a04, 0x5a07),
794 	regmap_reg_range(0x5b00, 0x5b01),
795 	regmap_reg_range(0x5b04, 0x5b04),
796 	regmap_reg_range(0x5c00, 0x5c05),
797 	regmap_reg_range(0x5c08, 0x5c1b),
798 
799 	/* port 6 */
800 	regmap_reg_range(0x6000, 0x6001),
801 	regmap_reg_range(0x6013, 0x6013),
802 	regmap_reg_range(0x6017, 0x6017),
803 	regmap_reg_range(0x601b, 0x601b),
804 	regmap_reg_range(0x601f, 0x6020),
805 	regmap_reg_range(0x6030, 0x6030),
806 	regmap_reg_range(0x6300, 0x6301),
807 	regmap_reg_range(0x6400, 0x6401),
808 	regmap_reg_range(0x6403, 0x6403),
809 	regmap_reg_range(0x6410, 0x6417),
810 	regmap_reg_range(0x6420, 0x6423),
811 	regmap_reg_range(0x6500, 0x6507),
812 	regmap_reg_range(0x6600, 0x6613),
813 	regmap_reg_range(0x6800, 0x680f),
814 	regmap_reg_range(0x6820, 0x6827),
815 	regmap_reg_range(0x6830, 0x6837),
816 	regmap_reg_range(0x6840, 0x684b),
817 	regmap_reg_range(0x6900, 0x6907),
818 	regmap_reg_range(0x6914, 0x691b),
819 	regmap_reg_range(0x6920, 0x6920),
820 	regmap_reg_range(0x6923, 0x6927),
821 	regmap_reg_range(0x6a00, 0x6a03),
822 	regmap_reg_range(0x6a04, 0x6a07),
823 	regmap_reg_range(0x6b00, 0x6b01),
824 	regmap_reg_range(0x6b04, 0x6b04),
825 	regmap_reg_range(0x6c00, 0x6c05),
826 	regmap_reg_range(0x6c08, 0x6c1b),
827 
828 	/* port 7 */
829 	regmap_reg_range(0x7000, 0x7001),
830 	regmap_reg_range(0x7013, 0x7013),
831 	regmap_reg_range(0x7017, 0x7017),
832 	regmap_reg_range(0x701b, 0x701b),
833 	regmap_reg_range(0x701f, 0x7020),
834 	regmap_reg_range(0x7030, 0x7030),
835 	regmap_reg_range(0x7200, 0x7203),
836 	regmap_reg_range(0x7206, 0x7207),
837 	regmap_reg_range(0x7300, 0x7301),
838 	regmap_reg_range(0x7400, 0x7401),
839 	regmap_reg_range(0x7403, 0x7403),
840 	regmap_reg_range(0x7410, 0x7417),
841 	regmap_reg_range(0x7420, 0x7423),
842 	regmap_reg_range(0x7500, 0x7507),
843 	regmap_reg_range(0x7600, 0x7613),
844 	regmap_reg_range(0x7800, 0x780f),
845 	regmap_reg_range(0x7820, 0x7827),
846 	regmap_reg_range(0x7830, 0x7837),
847 	regmap_reg_range(0x7840, 0x784b),
848 	regmap_reg_range(0x7900, 0x7907),
849 	regmap_reg_range(0x7914, 0x791b),
850 	regmap_reg_range(0x7920, 0x7920),
851 	regmap_reg_range(0x7923, 0x7927),
852 	regmap_reg_range(0x7a00, 0x7a03),
853 	regmap_reg_range(0x7a04, 0x7a07),
854 	regmap_reg_range(0x7b00, 0x7b01),
855 	regmap_reg_range(0x7b04, 0x7b04),
856 	regmap_reg_range(0x7c00, 0x7c05),
857 	regmap_reg_range(0x7c08, 0x7c1b),
858 };
859 
860 static const struct regmap_access_table ksz9477_register_set = {
861 	.yes_ranges = ksz9477_valid_regs,
862 	.n_yes_ranges = ARRAY_SIZE(ksz9477_valid_regs),
863 };
864 
865 static const struct regmap_range ksz9896_valid_regs[] = {
866 	regmap_reg_range(0x0000, 0x0003),
867 	regmap_reg_range(0x0006, 0x0006),
868 	regmap_reg_range(0x0010, 0x001f),
869 	regmap_reg_range(0x0100, 0x0100),
870 	regmap_reg_range(0x0103, 0x0107),
871 	regmap_reg_range(0x010d, 0x010d),
872 	regmap_reg_range(0x0110, 0x0113),
873 	regmap_reg_range(0x0120, 0x0127),
874 	regmap_reg_range(0x0201, 0x0201),
875 	regmap_reg_range(0x0210, 0x0213),
876 	regmap_reg_range(0x0300, 0x0300),
877 	regmap_reg_range(0x0302, 0x030b),
878 	regmap_reg_range(0x0310, 0x031b),
879 	regmap_reg_range(0x0320, 0x032b),
880 	regmap_reg_range(0x0330, 0x0336),
881 	regmap_reg_range(0x0338, 0x033b),
882 	regmap_reg_range(0x033e, 0x033e),
883 	regmap_reg_range(0x0340, 0x035f),
884 	regmap_reg_range(0x0370, 0x0370),
885 	regmap_reg_range(0x0378, 0x0378),
886 	regmap_reg_range(0x037c, 0x037d),
887 	regmap_reg_range(0x0390, 0x0393),
888 	regmap_reg_range(0x0400, 0x040e),
889 	regmap_reg_range(0x0410, 0x042f),
890 
891 	/* port 1 */
892 	regmap_reg_range(0x1000, 0x1001),
893 	regmap_reg_range(0x1013, 0x1013),
894 	regmap_reg_range(0x1017, 0x1017),
895 	regmap_reg_range(0x101b, 0x101b),
896 	regmap_reg_range(0x101f, 0x1020),
897 	regmap_reg_range(0x1030, 0x1030),
898 	regmap_reg_range(0x1100, 0x1115),
899 	regmap_reg_range(0x111a, 0x111f),
900 	regmap_reg_range(0x1122, 0x1127),
901 	regmap_reg_range(0x112a, 0x112b),
902 	regmap_reg_range(0x1136, 0x1139),
903 	regmap_reg_range(0x113e, 0x113f),
904 	regmap_reg_range(0x1400, 0x1401),
905 	regmap_reg_range(0x1403, 0x1403),
906 	regmap_reg_range(0x1410, 0x1417),
907 	regmap_reg_range(0x1420, 0x1423),
908 	regmap_reg_range(0x1500, 0x1507),
909 	regmap_reg_range(0x1600, 0x1612),
910 	regmap_reg_range(0x1800, 0x180f),
911 	regmap_reg_range(0x1820, 0x1827),
912 	regmap_reg_range(0x1830, 0x1837),
913 	regmap_reg_range(0x1840, 0x184b),
914 	regmap_reg_range(0x1900, 0x1907),
915 	regmap_reg_range(0x1914, 0x1915),
916 	regmap_reg_range(0x1a00, 0x1a03),
917 	regmap_reg_range(0x1a04, 0x1a07),
918 	regmap_reg_range(0x1b00, 0x1b01),
919 	regmap_reg_range(0x1b04, 0x1b04),
920 
921 	/* port 2 */
922 	regmap_reg_range(0x2000, 0x2001),
923 	regmap_reg_range(0x2013, 0x2013),
924 	regmap_reg_range(0x2017, 0x2017),
925 	regmap_reg_range(0x201b, 0x201b),
926 	regmap_reg_range(0x201f, 0x2020),
927 	regmap_reg_range(0x2030, 0x2030),
928 	regmap_reg_range(0x2100, 0x2115),
929 	regmap_reg_range(0x211a, 0x211f),
930 	regmap_reg_range(0x2122, 0x2127),
931 	regmap_reg_range(0x212a, 0x212b),
932 	regmap_reg_range(0x2136, 0x2139),
933 	regmap_reg_range(0x213e, 0x213f),
934 	regmap_reg_range(0x2400, 0x2401),
935 	regmap_reg_range(0x2403, 0x2403),
936 	regmap_reg_range(0x2410, 0x2417),
937 	regmap_reg_range(0x2420, 0x2423),
938 	regmap_reg_range(0x2500, 0x2507),
939 	regmap_reg_range(0x2600, 0x2612),
940 	regmap_reg_range(0x2800, 0x280f),
941 	regmap_reg_range(0x2820, 0x2827),
942 	regmap_reg_range(0x2830, 0x2837),
943 	regmap_reg_range(0x2840, 0x284b),
944 	regmap_reg_range(0x2900, 0x2907),
945 	regmap_reg_range(0x2914, 0x2915),
946 	regmap_reg_range(0x2a00, 0x2a03),
947 	regmap_reg_range(0x2a04, 0x2a07),
948 	regmap_reg_range(0x2b00, 0x2b01),
949 	regmap_reg_range(0x2b04, 0x2b04),
950 
951 	/* port 3 */
952 	regmap_reg_range(0x3000, 0x3001),
953 	regmap_reg_range(0x3013, 0x3013),
954 	regmap_reg_range(0x3017, 0x3017),
955 	regmap_reg_range(0x301b, 0x301b),
956 	regmap_reg_range(0x301f, 0x3020),
957 	regmap_reg_range(0x3030, 0x3030),
958 	regmap_reg_range(0x3100, 0x3115),
959 	regmap_reg_range(0x311a, 0x311f),
960 	regmap_reg_range(0x3122, 0x3127),
961 	regmap_reg_range(0x312a, 0x312b),
962 	regmap_reg_range(0x3136, 0x3139),
963 	regmap_reg_range(0x313e, 0x313f),
964 	regmap_reg_range(0x3400, 0x3401),
965 	regmap_reg_range(0x3403, 0x3403),
966 	regmap_reg_range(0x3410, 0x3417),
967 	regmap_reg_range(0x3420, 0x3423),
968 	regmap_reg_range(0x3500, 0x3507),
969 	regmap_reg_range(0x3600, 0x3612),
970 	regmap_reg_range(0x3800, 0x380f),
971 	regmap_reg_range(0x3820, 0x3827),
972 	regmap_reg_range(0x3830, 0x3837),
973 	regmap_reg_range(0x3840, 0x384b),
974 	regmap_reg_range(0x3900, 0x3907),
975 	regmap_reg_range(0x3914, 0x3915),
976 	regmap_reg_range(0x3a00, 0x3a03),
977 	regmap_reg_range(0x3a04, 0x3a07),
978 	regmap_reg_range(0x3b00, 0x3b01),
979 	regmap_reg_range(0x3b04, 0x3b04),
980 
981 	/* port 4 */
982 	regmap_reg_range(0x4000, 0x4001),
983 	regmap_reg_range(0x4013, 0x4013),
984 	regmap_reg_range(0x4017, 0x4017),
985 	regmap_reg_range(0x401b, 0x401b),
986 	regmap_reg_range(0x401f, 0x4020),
987 	regmap_reg_range(0x4030, 0x4030),
988 	regmap_reg_range(0x4100, 0x4115),
989 	regmap_reg_range(0x411a, 0x411f),
990 	regmap_reg_range(0x4122, 0x4127),
991 	regmap_reg_range(0x412a, 0x412b),
992 	regmap_reg_range(0x4136, 0x4139),
993 	regmap_reg_range(0x413e, 0x413f),
994 	regmap_reg_range(0x4400, 0x4401),
995 	regmap_reg_range(0x4403, 0x4403),
996 	regmap_reg_range(0x4410, 0x4417),
997 	regmap_reg_range(0x4420, 0x4423),
998 	regmap_reg_range(0x4500, 0x4507),
999 	regmap_reg_range(0x4600, 0x4612),
1000 	regmap_reg_range(0x4800, 0x480f),
1001 	regmap_reg_range(0x4820, 0x4827),
1002 	regmap_reg_range(0x4830, 0x4837),
1003 	regmap_reg_range(0x4840, 0x484b),
1004 	regmap_reg_range(0x4900, 0x4907),
1005 	regmap_reg_range(0x4914, 0x4915),
1006 	regmap_reg_range(0x4a00, 0x4a03),
1007 	regmap_reg_range(0x4a04, 0x4a07),
1008 	regmap_reg_range(0x4b00, 0x4b01),
1009 	regmap_reg_range(0x4b04, 0x4b04),
1010 
1011 	/* port 5 */
1012 	regmap_reg_range(0x5000, 0x5001),
1013 	regmap_reg_range(0x5013, 0x5013),
1014 	regmap_reg_range(0x5017, 0x5017),
1015 	regmap_reg_range(0x501b, 0x501b),
1016 	regmap_reg_range(0x501f, 0x5020),
1017 	regmap_reg_range(0x5030, 0x5030),
1018 	regmap_reg_range(0x5100, 0x5115),
1019 	regmap_reg_range(0x511a, 0x511f),
1020 	regmap_reg_range(0x5122, 0x5127),
1021 	regmap_reg_range(0x512a, 0x512b),
1022 	regmap_reg_range(0x5136, 0x5139),
1023 	regmap_reg_range(0x513e, 0x513f),
1024 	regmap_reg_range(0x5400, 0x5401),
1025 	regmap_reg_range(0x5403, 0x5403),
1026 	regmap_reg_range(0x5410, 0x5417),
1027 	regmap_reg_range(0x5420, 0x5423),
1028 	regmap_reg_range(0x5500, 0x5507),
1029 	regmap_reg_range(0x5600, 0x5612),
1030 	regmap_reg_range(0x5800, 0x580f),
1031 	regmap_reg_range(0x5820, 0x5827),
1032 	regmap_reg_range(0x5830, 0x5837),
1033 	regmap_reg_range(0x5840, 0x584b),
1034 	regmap_reg_range(0x5900, 0x5907),
1035 	regmap_reg_range(0x5914, 0x5915),
1036 	regmap_reg_range(0x5a00, 0x5a03),
1037 	regmap_reg_range(0x5a04, 0x5a07),
1038 	regmap_reg_range(0x5b00, 0x5b01),
1039 	regmap_reg_range(0x5b04, 0x5b04),
1040 
1041 	/* port 6 */
1042 	regmap_reg_range(0x6000, 0x6001),
1043 	regmap_reg_range(0x6013, 0x6013),
1044 	regmap_reg_range(0x6017, 0x6017),
1045 	regmap_reg_range(0x601b, 0x601b),
1046 	regmap_reg_range(0x601f, 0x6020),
1047 	regmap_reg_range(0x6030, 0x6030),
1048 	regmap_reg_range(0x6100, 0x6115),
1049 	regmap_reg_range(0x611a, 0x611f),
1050 	regmap_reg_range(0x6122, 0x6127),
1051 	regmap_reg_range(0x612a, 0x612b),
1052 	regmap_reg_range(0x6136, 0x6139),
1053 	regmap_reg_range(0x613e, 0x613f),
1054 	regmap_reg_range(0x6300, 0x6301),
1055 	regmap_reg_range(0x6400, 0x6401),
1056 	regmap_reg_range(0x6403, 0x6403),
1057 	regmap_reg_range(0x6410, 0x6417),
1058 	regmap_reg_range(0x6420, 0x6423),
1059 	regmap_reg_range(0x6500, 0x6507),
1060 	regmap_reg_range(0x6600, 0x6612),
1061 	regmap_reg_range(0x6800, 0x680f),
1062 	regmap_reg_range(0x6820, 0x6827),
1063 	regmap_reg_range(0x6830, 0x6837),
1064 	regmap_reg_range(0x6840, 0x684b),
1065 	regmap_reg_range(0x6900, 0x6907),
1066 	regmap_reg_range(0x6914, 0x6915),
1067 	regmap_reg_range(0x6a00, 0x6a03),
1068 	regmap_reg_range(0x6a04, 0x6a07),
1069 	regmap_reg_range(0x6b00, 0x6b01),
1070 	regmap_reg_range(0x6b04, 0x6b04),
1071 };
1072 
1073 static const struct regmap_access_table ksz9896_register_set = {
1074 	.yes_ranges = ksz9896_valid_regs,
1075 	.n_yes_ranges = ARRAY_SIZE(ksz9896_valid_regs),
1076 };
1077 
1078 static const struct regmap_range ksz8873_valid_regs[] = {
1079 	regmap_reg_range(0x00, 0x01),
1080 	/* global control register */
1081 	regmap_reg_range(0x02, 0x0f),
1082 
1083 	/* port registers */
1084 	regmap_reg_range(0x10, 0x1d),
1085 	regmap_reg_range(0x1e, 0x1f),
1086 	regmap_reg_range(0x20, 0x2d),
1087 	regmap_reg_range(0x2e, 0x2f),
1088 	regmap_reg_range(0x30, 0x39),
1089 	regmap_reg_range(0x3f, 0x3f),
1090 
1091 	/* advanced control registers */
1092 	regmap_reg_range(0x60, 0x6f),
1093 	regmap_reg_range(0x70, 0x75),
1094 	regmap_reg_range(0x76, 0x78),
1095 	regmap_reg_range(0x79, 0x7a),
1096 	regmap_reg_range(0x7b, 0x83),
1097 	regmap_reg_range(0x8e, 0x99),
1098 	regmap_reg_range(0x9a, 0xa5),
1099 	regmap_reg_range(0xa6, 0xa6),
1100 	regmap_reg_range(0xa7, 0xaa),
1101 	regmap_reg_range(0xab, 0xae),
1102 	regmap_reg_range(0xaf, 0xba),
1103 	regmap_reg_range(0xbb, 0xbc),
1104 	regmap_reg_range(0xbd, 0xbd),
1105 	regmap_reg_range(0xc0, 0xc0),
1106 	regmap_reg_range(0xc2, 0xc2),
1107 	regmap_reg_range(0xc3, 0xc3),
1108 	regmap_reg_range(0xc4, 0xc4),
1109 	regmap_reg_range(0xc6, 0xc6),
1110 };
1111 
1112 static const struct regmap_access_table ksz8873_register_set = {
1113 	.yes_ranges = ksz8873_valid_regs,
1114 	.n_yes_ranges = ARRAY_SIZE(ksz8873_valid_regs),
1115 };
1116 
1117 const struct ksz_chip_data ksz_switch_chips[] = {
1118 	[KSZ8563] = {
1119 		.chip_id = KSZ8563_CHIP_ID,
1120 		.dev_name = "KSZ8563",
1121 		.num_vlans = 4096,
1122 		.num_alus = 4096,
1123 		.num_statics = 16,
1124 		.cpu_ports = 0x07,	/* can be configured as cpu port */
1125 		.port_cnt = 3,		/* total port count */
1126 		.port_nirqs = 3,
1127 		.num_tx_queues = 4,
1128 		.tc_cbs_supported = true,
1129 		.tc_ets_supported = true,
1130 		.ops = &ksz9477_dev_ops,
1131 		.mib_names = ksz9477_mib_names,
1132 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1133 		.reg_mib_cnt = MIB_COUNTER_NUM,
1134 		.regs = ksz9477_regs,
1135 		.masks = ksz9477_masks,
1136 		.shifts = ksz9477_shifts,
1137 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1138 		.xmii_ctrl1 = ksz8795_xmii_ctrl1, /* Same as ksz8795 */
1139 		.supports_mii = {false, false, true},
1140 		.supports_rmii = {false, false, true},
1141 		.supports_rgmii = {false, false, true},
1142 		.internal_phy = {true, true, false},
1143 		.gbit_capable = {false, false, true},
1144 		.wr_table = &ksz8563_register_set,
1145 		.rd_table = &ksz8563_register_set,
1146 	},
1147 
1148 	[KSZ8795] = {
1149 		.chip_id = KSZ8795_CHIP_ID,
1150 		.dev_name = "KSZ8795",
1151 		.num_vlans = 4096,
1152 		.num_alus = 0,
1153 		.num_statics = 8,
1154 		.cpu_ports = 0x10,	/* can be configured as cpu port */
1155 		.port_cnt = 5,		/* total cpu and user ports */
1156 		.num_tx_queues = 4,
1157 		.ops = &ksz8_dev_ops,
1158 		.ksz87xx_eee_link_erratum = true,
1159 		.mib_names = ksz9477_mib_names,
1160 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1161 		.reg_mib_cnt = MIB_COUNTER_NUM,
1162 		.regs = ksz8795_regs,
1163 		.masks = ksz8795_masks,
1164 		.shifts = ksz8795_shifts,
1165 		.xmii_ctrl0 = ksz8795_xmii_ctrl0,
1166 		.xmii_ctrl1 = ksz8795_xmii_ctrl1,
1167 		.supports_mii = {false, false, false, false, true},
1168 		.supports_rmii = {false, false, false, false, true},
1169 		.supports_rgmii = {false, false, false, false, true},
1170 		.internal_phy = {true, true, true, true, false},
1171 	},
1172 
1173 	[KSZ8794] = {
1174 		/* WARNING
1175 		 * =======
1176 		 * KSZ8794 is similar to KSZ8795, except the port map
1177 		 * contains a gap between external and CPU ports, the
1178 		 * port map is NOT continuous. The per-port register
1179 		 * map is shifted accordingly too, i.e. registers at
1180 		 * offset 0x40 are NOT used on KSZ8794 and they ARE
1181 		 * used on KSZ8795 for external port 3.
1182 		 *           external  cpu
1183 		 * KSZ8794   0,1,2      4
1184 		 * KSZ8795   0,1,2,3    4
1185 		 * KSZ8765   0,1,2,3    4
1186 		 * port_cnt is configured as 5, even though it is 4
1187 		 */
1188 		.chip_id = KSZ8794_CHIP_ID,
1189 		.dev_name = "KSZ8794",
1190 		.num_vlans = 4096,
1191 		.num_alus = 0,
1192 		.num_statics = 8,
1193 		.cpu_ports = 0x10,	/* can be configured as cpu port */
1194 		.port_cnt = 5,		/* total cpu and user ports */
1195 		.num_tx_queues = 4,
1196 		.ops = &ksz8_dev_ops,
1197 		.ksz87xx_eee_link_erratum = true,
1198 		.mib_names = ksz9477_mib_names,
1199 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1200 		.reg_mib_cnt = MIB_COUNTER_NUM,
1201 		.regs = ksz8795_regs,
1202 		.masks = ksz8795_masks,
1203 		.shifts = ksz8795_shifts,
1204 		.xmii_ctrl0 = ksz8795_xmii_ctrl0,
1205 		.xmii_ctrl1 = ksz8795_xmii_ctrl1,
1206 		.supports_mii = {false, false, false, false, true},
1207 		.supports_rmii = {false, false, false, false, true},
1208 		.supports_rgmii = {false, false, false, false, true},
1209 		.internal_phy = {true, true, true, false, false},
1210 	},
1211 
1212 	[KSZ8765] = {
1213 		.chip_id = KSZ8765_CHIP_ID,
1214 		.dev_name = "KSZ8765",
1215 		.num_vlans = 4096,
1216 		.num_alus = 0,
1217 		.num_statics = 8,
1218 		.cpu_ports = 0x10,	/* can be configured as cpu port */
1219 		.port_cnt = 5,		/* total cpu and user ports */
1220 		.num_tx_queues = 4,
1221 		.ops = &ksz8_dev_ops,
1222 		.ksz87xx_eee_link_erratum = true,
1223 		.mib_names = ksz9477_mib_names,
1224 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1225 		.reg_mib_cnt = MIB_COUNTER_NUM,
1226 		.regs = ksz8795_regs,
1227 		.masks = ksz8795_masks,
1228 		.shifts = ksz8795_shifts,
1229 		.xmii_ctrl0 = ksz8795_xmii_ctrl0,
1230 		.xmii_ctrl1 = ksz8795_xmii_ctrl1,
1231 		.supports_mii = {false, false, false, false, true},
1232 		.supports_rmii = {false, false, false, false, true},
1233 		.supports_rgmii = {false, false, false, false, true},
1234 		.internal_phy = {true, true, true, true, false},
1235 	},
1236 
1237 	[KSZ8830] = {
1238 		.chip_id = KSZ8830_CHIP_ID,
1239 		.dev_name = "KSZ8863/KSZ8873",
1240 		.num_vlans = 16,
1241 		.num_alus = 0,
1242 		.num_statics = 8,
1243 		.cpu_ports = 0x4,	/* can be configured as cpu port */
1244 		.port_cnt = 3,
1245 		.num_tx_queues = 4,
1246 		.ops = &ksz8_dev_ops,
1247 		.mib_names = ksz88xx_mib_names,
1248 		.mib_cnt = ARRAY_SIZE(ksz88xx_mib_names),
1249 		.reg_mib_cnt = MIB_COUNTER_NUM,
1250 		.regs = ksz8863_regs,
1251 		.masks = ksz8863_masks,
1252 		.shifts = ksz8863_shifts,
1253 		.supports_mii = {false, false, true},
1254 		.supports_rmii = {false, false, true},
1255 		.internal_phy = {true, true, false},
1256 		.wr_table = &ksz8873_register_set,
1257 		.rd_table = &ksz8873_register_set,
1258 	},
1259 
1260 	[KSZ9477] = {
1261 		.chip_id = KSZ9477_CHIP_ID,
1262 		.dev_name = "KSZ9477",
1263 		.num_vlans = 4096,
1264 		.num_alus = 4096,
1265 		.num_statics = 16,
1266 		.cpu_ports = 0x7F,	/* can be configured as cpu port */
1267 		.port_cnt = 7,		/* total physical port count */
1268 		.port_nirqs = 4,
1269 		.num_tx_queues = 4,
1270 		.tc_cbs_supported = true,
1271 		.tc_ets_supported = true,
1272 		.ops = &ksz9477_dev_ops,
1273 		.mib_names = ksz9477_mib_names,
1274 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1275 		.reg_mib_cnt = MIB_COUNTER_NUM,
1276 		.regs = ksz9477_regs,
1277 		.masks = ksz9477_masks,
1278 		.shifts = ksz9477_shifts,
1279 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1280 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1281 		.supports_mii	= {false, false, false, false,
1282 				   false, true, false},
1283 		.supports_rmii	= {false, false, false, false,
1284 				   false, true, false},
1285 		.supports_rgmii = {false, false, false, false,
1286 				   false, true, false},
1287 		.internal_phy	= {true, true, true, true,
1288 				   true, false, false},
1289 		.gbit_capable	= {true, true, true, true, true, true, true},
1290 		.wr_table = &ksz9477_register_set,
1291 		.rd_table = &ksz9477_register_set,
1292 	},
1293 
1294 	[KSZ9896] = {
1295 		.chip_id = KSZ9896_CHIP_ID,
1296 		.dev_name = "KSZ9896",
1297 		.num_vlans = 4096,
1298 		.num_alus = 4096,
1299 		.num_statics = 16,
1300 		.cpu_ports = 0x3F,	/* can be configured as cpu port */
1301 		.port_cnt = 6,		/* total physical port count */
1302 		.port_nirqs = 2,
1303 		.num_tx_queues = 4,
1304 		.ops = &ksz9477_dev_ops,
1305 		.mib_names = ksz9477_mib_names,
1306 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1307 		.reg_mib_cnt = MIB_COUNTER_NUM,
1308 		.regs = ksz9477_regs,
1309 		.masks = ksz9477_masks,
1310 		.shifts = ksz9477_shifts,
1311 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1312 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1313 		.supports_mii	= {false, false, false, false,
1314 				   false, true},
1315 		.supports_rmii	= {false, false, false, false,
1316 				   false, true},
1317 		.supports_rgmii = {false, false, false, false,
1318 				   false, true},
1319 		.internal_phy	= {true, true, true, true,
1320 				   true, false},
1321 		.gbit_capable	= {true, true, true, true, true, true},
1322 		.wr_table = &ksz9896_register_set,
1323 		.rd_table = &ksz9896_register_set,
1324 	},
1325 
1326 	[KSZ9897] = {
1327 		.chip_id = KSZ9897_CHIP_ID,
1328 		.dev_name = "KSZ9897",
1329 		.num_vlans = 4096,
1330 		.num_alus = 4096,
1331 		.num_statics = 16,
1332 		.cpu_ports = 0x7F,	/* can be configured as cpu port */
1333 		.port_cnt = 7,		/* total physical port count */
1334 		.port_nirqs = 2,
1335 		.num_tx_queues = 4,
1336 		.ops = &ksz9477_dev_ops,
1337 		.mib_names = ksz9477_mib_names,
1338 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1339 		.reg_mib_cnt = MIB_COUNTER_NUM,
1340 		.regs = ksz9477_regs,
1341 		.masks = ksz9477_masks,
1342 		.shifts = ksz9477_shifts,
1343 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1344 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1345 		.supports_mii	= {false, false, false, false,
1346 				   false, true, true},
1347 		.supports_rmii	= {false, false, false, false,
1348 				   false, true, true},
1349 		.supports_rgmii = {false, false, false, false,
1350 				   false, true, true},
1351 		.internal_phy	= {true, true, true, true,
1352 				   true, false, false},
1353 		.gbit_capable	= {true, true, true, true, true, true, true},
1354 	},
1355 
1356 	[KSZ9893] = {
1357 		.chip_id = KSZ9893_CHIP_ID,
1358 		.dev_name = "KSZ9893",
1359 		.num_vlans = 4096,
1360 		.num_alus = 4096,
1361 		.num_statics = 16,
1362 		.cpu_ports = 0x07,	/* can be configured as cpu port */
1363 		.port_cnt = 3,		/* total port count */
1364 		.port_nirqs = 2,
1365 		.num_tx_queues = 4,
1366 		.ops = &ksz9477_dev_ops,
1367 		.mib_names = ksz9477_mib_names,
1368 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1369 		.reg_mib_cnt = MIB_COUNTER_NUM,
1370 		.regs = ksz9477_regs,
1371 		.masks = ksz9477_masks,
1372 		.shifts = ksz9477_shifts,
1373 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1374 		.xmii_ctrl1 = ksz8795_xmii_ctrl1, /* Same as ksz8795 */
1375 		.supports_mii = {false, false, true},
1376 		.supports_rmii = {false, false, true},
1377 		.supports_rgmii = {false, false, true},
1378 		.internal_phy = {true, true, false},
1379 		.gbit_capable = {true, true, true},
1380 	},
1381 
1382 	[KSZ9563] = {
1383 		.chip_id = KSZ9563_CHIP_ID,
1384 		.dev_name = "KSZ9563",
1385 		.num_vlans = 4096,
1386 		.num_alus = 4096,
1387 		.num_statics = 16,
1388 		.cpu_ports = 0x07,	/* can be configured as cpu port */
1389 		.port_cnt = 3,		/* total port count */
1390 		.port_nirqs = 3,
1391 		.num_tx_queues = 4,
1392 		.tc_cbs_supported = true,
1393 		.tc_ets_supported = true,
1394 		.ops = &ksz9477_dev_ops,
1395 		.mib_names = ksz9477_mib_names,
1396 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1397 		.reg_mib_cnt = MIB_COUNTER_NUM,
1398 		.regs = ksz9477_regs,
1399 		.masks = ksz9477_masks,
1400 		.shifts = ksz9477_shifts,
1401 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1402 		.xmii_ctrl1 = ksz8795_xmii_ctrl1, /* Same as ksz8795 */
1403 		.supports_mii = {false, false, true},
1404 		.supports_rmii = {false, false, true},
1405 		.supports_rgmii = {false, false, true},
1406 		.internal_phy = {true, true, false},
1407 		.gbit_capable = {true, true, true},
1408 	},
1409 
1410 	[KSZ9567] = {
1411 		.chip_id = KSZ9567_CHIP_ID,
1412 		.dev_name = "KSZ9567",
1413 		.num_vlans = 4096,
1414 		.num_alus = 4096,
1415 		.num_statics = 16,
1416 		.cpu_ports = 0x7F,	/* can be configured as cpu port */
1417 		.port_cnt = 7,		/* total physical port count */
1418 		.port_nirqs = 3,
1419 		.num_tx_queues = 4,
1420 		.tc_cbs_supported = true,
1421 		.tc_ets_supported = true,
1422 		.ops = &ksz9477_dev_ops,
1423 		.mib_names = ksz9477_mib_names,
1424 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1425 		.reg_mib_cnt = MIB_COUNTER_NUM,
1426 		.regs = ksz9477_regs,
1427 		.masks = ksz9477_masks,
1428 		.shifts = ksz9477_shifts,
1429 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1430 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1431 		.supports_mii	= {false, false, false, false,
1432 				   false, true, true},
1433 		.supports_rmii	= {false, false, false, false,
1434 				   false, true, true},
1435 		.supports_rgmii = {false, false, false, false,
1436 				   false, true, true},
1437 		.internal_phy	= {true, true, true, true,
1438 				   true, false, false},
1439 		.gbit_capable	= {true, true, true, true, true, true, true},
1440 	},
1441 
1442 	[LAN9370] = {
1443 		.chip_id = LAN9370_CHIP_ID,
1444 		.dev_name = "LAN9370",
1445 		.num_vlans = 4096,
1446 		.num_alus = 1024,
1447 		.num_statics = 256,
1448 		.cpu_ports = 0x10,	/* can be configured as cpu port */
1449 		.port_cnt = 5,		/* total physical port count */
1450 		.port_nirqs = 6,
1451 		.num_tx_queues = 8,
1452 		.tc_cbs_supported = true,
1453 		.tc_ets_supported = true,
1454 		.ops = &lan937x_dev_ops,
1455 		.mib_names = ksz9477_mib_names,
1456 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1457 		.reg_mib_cnt = MIB_COUNTER_NUM,
1458 		.regs = ksz9477_regs,
1459 		.masks = lan937x_masks,
1460 		.shifts = lan937x_shifts,
1461 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1462 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1463 		.supports_mii = {false, false, false, false, true},
1464 		.supports_rmii = {false, false, false, false, true},
1465 		.supports_rgmii = {false, false, false, false, true},
1466 		.internal_phy = {true, true, true, true, false},
1467 	},
1468 
1469 	[LAN9371] = {
1470 		.chip_id = LAN9371_CHIP_ID,
1471 		.dev_name = "LAN9371",
1472 		.num_vlans = 4096,
1473 		.num_alus = 1024,
1474 		.num_statics = 256,
1475 		.cpu_ports = 0x30,	/* can be configured as cpu port */
1476 		.port_cnt = 6,		/* total physical port count */
1477 		.port_nirqs = 6,
1478 		.num_tx_queues = 8,
1479 		.tc_cbs_supported = true,
1480 		.tc_ets_supported = true,
1481 		.ops = &lan937x_dev_ops,
1482 		.mib_names = ksz9477_mib_names,
1483 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1484 		.reg_mib_cnt = MIB_COUNTER_NUM,
1485 		.regs = ksz9477_regs,
1486 		.masks = lan937x_masks,
1487 		.shifts = lan937x_shifts,
1488 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1489 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1490 		.supports_mii = {false, false, false, false, true, true},
1491 		.supports_rmii = {false, false, false, false, true, true},
1492 		.supports_rgmii = {false, false, false, false, true, true},
1493 		.internal_phy = {true, true, true, true, false, false},
1494 	},
1495 
1496 	[LAN9372] = {
1497 		.chip_id = LAN9372_CHIP_ID,
1498 		.dev_name = "LAN9372",
1499 		.num_vlans = 4096,
1500 		.num_alus = 1024,
1501 		.num_statics = 256,
1502 		.cpu_ports = 0x30,	/* can be configured as cpu port */
1503 		.port_cnt = 8,		/* total physical port count */
1504 		.port_nirqs = 6,
1505 		.num_tx_queues = 8,
1506 		.tc_cbs_supported = true,
1507 		.tc_ets_supported = true,
1508 		.ops = &lan937x_dev_ops,
1509 		.mib_names = ksz9477_mib_names,
1510 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1511 		.reg_mib_cnt = MIB_COUNTER_NUM,
1512 		.regs = ksz9477_regs,
1513 		.masks = lan937x_masks,
1514 		.shifts = lan937x_shifts,
1515 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1516 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1517 		.supports_mii	= {false, false, false, false,
1518 				   true, true, false, false},
1519 		.supports_rmii	= {false, false, false, false,
1520 				   true, true, false, false},
1521 		.supports_rgmii = {false, false, false, false,
1522 				   true, true, false, false},
1523 		.internal_phy	= {true, true, true, true,
1524 				   false, false, true, true},
1525 	},
1526 
1527 	[LAN9373] = {
1528 		.chip_id = LAN9373_CHIP_ID,
1529 		.dev_name = "LAN9373",
1530 		.num_vlans = 4096,
1531 		.num_alus = 1024,
1532 		.num_statics = 256,
1533 		.cpu_ports = 0x38,	/* can be configured as cpu port */
1534 		.port_cnt = 5,		/* total physical port count */
1535 		.port_nirqs = 6,
1536 		.num_tx_queues = 8,
1537 		.tc_cbs_supported = true,
1538 		.tc_ets_supported = true,
1539 		.ops = &lan937x_dev_ops,
1540 		.mib_names = ksz9477_mib_names,
1541 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1542 		.reg_mib_cnt = MIB_COUNTER_NUM,
1543 		.regs = ksz9477_regs,
1544 		.masks = lan937x_masks,
1545 		.shifts = lan937x_shifts,
1546 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1547 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1548 		.supports_mii	= {false, false, false, false,
1549 				   true, true, false, false},
1550 		.supports_rmii	= {false, false, false, false,
1551 				   true, true, false, false},
1552 		.supports_rgmii = {false, false, false, false,
1553 				   true, true, false, false},
1554 		.internal_phy	= {true, true, true, false,
1555 				   false, false, true, true},
1556 	},
1557 
1558 	[LAN9374] = {
1559 		.chip_id = LAN9374_CHIP_ID,
1560 		.dev_name = "LAN9374",
1561 		.num_vlans = 4096,
1562 		.num_alus = 1024,
1563 		.num_statics = 256,
1564 		.cpu_ports = 0x30,	/* can be configured as cpu port */
1565 		.port_cnt = 8,		/* total physical port count */
1566 		.port_nirqs = 6,
1567 		.num_tx_queues = 8,
1568 		.tc_cbs_supported = true,
1569 		.tc_ets_supported = true,
1570 		.ops = &lan937x_dev_ops,
1571 		.mib_names = ksz9477_mib_names,
1572 		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
1573 		.reg_mib_cnt = MIB_COUNTER_NUM,
1574 		.regs = ksz9477_regs,
1575 		.masks = lan937x_masks,
1576 		.shifts = lan937x_shifts,
1577 		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
1578 		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
1579 		.supports_mii	= {false, false, false, false,
1580 				   true, true, false, false},
1581 		.supports_rmii	= {false, false, false, false,
1582 				   true, true, false, false},
1583 		.supports_rgmii = {false, false, false, false,
1584 				   true, true, false, false},
1585 		.internal_phy	= {true, true, true, true,
1586 				   false, false, true, true},
1587 	},
1588 };
1589 EXPORT_SYMBOL_GPL(ksz_switch_chips);
1590 
1591 static const struct ksz_chip_data *ksz_lookup_info(unsigned int prod_num)
1592 {
1593 	int i;
1594 
1595 	for (i = 0; i < ARRAY_SIZE(ksz_switch_chips); i++) {
1596 		const struct ksz_chip_data *chip = &ksz_switch_chips[i];
1597 
1598 		if (chip->chip_id == prod_num)
1599 			return chip;
1600 	}
1601 
1602 	return NULL;
1603 }
1604 
1605 static int ksz_check_device_id(struct ksz_device *dev)
1606 {
1607 	const struct ksz_chip_data *dt_chip_data;
1608 
1609 	dt_chip_data = of_device_get_match_data(dev->dev);
1610 
1611 	/* Check for Device Tree and Chip ID */
1612 	if (dt_chip_data->chip_id != dev->chip_id) {
1613 		dev_err(dev->dev,
1614 			"Device tree specifies chip %s but found %s, please fix it!\n",
1615 			dt_chip_data->dev_name, dev->info->dev_name);
1616 		return -ENODEV;
1617 	}
1618 
1619 	return 0;
1620 }
1621 
1622 static void ksz_phylink_get_caps(struct dsa_switch *ds, int port,
1623 				 struct phylink_config *config)
1624 {
1625 	struct ksz_device *dev = ds->priv;
1626 
1627 	config->legacy_pre_march2020 = false;
1628 
1629 	if (dev->info->supports_mii[port])
1630 		__set_bit(PHY_INTERFACE_MODE_MII, config->supported_interfaces);
1631 
1632 	if (dev->info->supports_rmii[port])
1633 		__set_bit(PHY_INTERFACE_MODE_RMII,
1634 			  config->supported_interfaces);
1635 
1636 	if (dev->info->supports_rgmii[port])
1637 		phy_interface_set_rgmii(config->supported_interfaces);
1638 
1639 	if (dev->info->internal_phy[port]) {
1640 		__set_bit(PHY_INTERFACE_MODE_INTERNAL,
1641 			  config->supported_interfaces);
1642 		/* Compatibility for phylib's default interface type when the
1643 		 * phy-mode property is absent
1644 		 */
1645 		__set_bit(PHY_INTERFACE_MODE_GMII,
1646 			  config->supported_interfaces);
1647 	}
1648 
1649 	if (dev->dev_ops->get_caps)
1650 		dev->dev_ops->get_caps(dev, port, config);
1651 }
1652 
1653 void ksz_r_mib_stats64(struct ksz_device *dev, int port)
1654 {
1655 	struct ethtool_pause_stats *pstats;
1656 	struct rtnl_link_stats64 *stats;
1657 	struct ksz_stats_raw *raw;
1658 	struct ksz_port_mib *mib;
1659 
1660 	mib = &dev->ports[port].mib;
1661 	stats = &mib->stats64;
1662 	pstats = &mib->pause_stats;
1663 	raw = (struct ksz_stats_raw *)mib->counters;
1664 
1665 	spin_lock(&mib->stats64_lock);
1666 
1667 	stats->rx_packets = raw->rx_bcast + raw->rx_mcast + raw->rx_ucast +
1668 		raw->rx_pause;
1669 	stats->tx_packets = raw->tx_bcast + raw->tx_mcast + raw->tx_ucast +
1670 		raw->tx_pause;
1671 
1672 	/* HW counters are counting bytes + FCS which is not acceptable
1673 	 * for rtnl_link_stats64 interface
1674 	 */
1675 	stats->rx_bytes = raw->rx_total - stats->rx_packets * ETH_FCS_LEN;
1676 	stats->tx_bytes = raw->tx_total - stats->tx_packets * ETH_FCS_LEN;
1677 
1678 	stats->rx_length_errors = raw->rx_undersize + raw->rx_fragments +
1679 		raw->rx_oversize;
1680 
1681 	stats->rx_crc_errors = raw->rx_crc_err;
1682 	stats->rx_frame_errors = raw->rx_align_err;
1683 	stats->rx_dropped = raw->rx_discards;
1684 	stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
1685 		stats->rx_frame_errors  + stats->rx_dropped;
1686 
1687 	stats->tx_window_errors = raw->tx_late_col;
1688 	stats->tx_fifo_errors = raw->tx_discards;
1689 	stats->tx_aborted_errors = raw->tx_exc_col;
1690 	stats->tx_errors = stats->tx_window_errors + stats->tx_fifo_errors +
1691 		stats->tx_aborted_errors;
1692 
1693 	stats->multicast = raw->rx_mcast;
1694 	stats->collisions = raw->tx_total_col;
1695 
1696 	pstats->tx_pause_frames = raw->tx_pause;
1697 	pstats->rx_pause_frames = raw->rx_pause;
1698 
1699 	spin_unlock(&mib->stats64_lock);
1700 }
1701 
1702 void ksz88xx_r_mib_stats64(struct ksz_device *dev, int port)
1703 {
1704 	struct ethtool_pause_stats *pstats;
1705 	struct rtnl_link_stats64 *stats;
1706 	struct ksz88xx_stats_raw *raw;
1707 	struct ksz_port_mib *mib;
1708 
1709 	mib = &dev->ports[port].mib;
1710 	stats = &mib->stats64;
1711 	pstats = &mib->pause_stats;
1712 	raw = (struct ksz88xx_stats_raw *)mib->counters;
1713 
1714 	spin_lock(&mib->stats64_lock);
1715 
1716 	stats->rx_packets = raw->rx_bcast + raw->rx_mcast + raw->rx_ucast +
1717 		raw->rx_pause;
1718 	stats->tx_packets = raw->tx_bcast + raw->tx_mcast + raw->tx_ucast +
1719 		raw->tx_pause;
1720 
1721 	/* HW counters are counting bytes + FCS which is not acceptable
1722 	 * for rtnl_link_stats64 interface
1723 	 */
1724 	stats->rx_bytes = raw->rx + raw->rx_hi - stats->rx_packets * ETH_FCS_LEN;
1725 	stats->tx_bytes = raw->tx + raw->tx_hi - stats->tx_packets * ETH_FCS_LEN;
1726 
1727 	stats->rx_length_errors = raw->rx_undersize + raw->rx_fragments +
1728 		raw->rx_oversize;
1729 
1730 	stats->rx_crc_errors = raw->rx_crc_err;
1731 	stats->rx_frame_errors = raw->rx_align_err;
1732 	stats->rx_dropped = raw->rx_discards;
1733 	stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
1734 		stats->rx_frame_errors  + stats->rx_dropped;
1735 
1736 	stats->tx_window_errors = raw->tx_late_col;
1737 	stats->tx_fifo_errors = raw->tx_discards;
1738 	stats->tx_aborted_errors = raw->tx_exc_col;
1739 	stats->tx_errors = stats->tx_window_errors + stats->tx_fifo_errors +
1740 		stats->tx_aborted_errors;
1741 
1742 	stats->multicast = raw->rx_mcast;
1743 	stats->collisions = raw->tx_total_col;
1744 
1745 	pstats->tx_pause_frames = raw->tx_pause;
1746 	pstats->rx_pause_frames = raw->rx_pause;
1747 
1748 	spin_unlock(&mib->stats64_lock);
1749 }
1750 
1751 static void ksz_get_stats64(struct dsa_switch *ds, int port,
1752 			    struct rtnl_link_stats64 *s)
1753 {
1754 	struct ksz_device *dev = ds->priv;
1755 	struct ksz_port_mib *mib;
1756 
1757 	mib = &dev->ports[port].mib;
1758 
1759 	spin_lock(&mib->stats64_lock);
1760 	memcpy(s, &mib->stats64, sizeof(*s));
1761 	spin_unlock(&mib->stats64_lock);
1762 }
1763 
1764 static void ksz_get_pause_stats(struct dsa_switch *ds, int port,
1765 				struct ethtool_pause_stats *pause_stats)
1766 {
1767 	struct ksz_device *dev = ds->priv;
1768 	struct ksz_port_mib *mib;
1769 
1770 	mib = &dev->ports[port].mib;
1771 
1772 	spin_lock(&mib->stats64_lock);
1773 	memcpy(pause_stats, &mib->pause_stats, sizeof(*pause_stats));
1774 	spin_unlock(&mib->stats64_lock);
1775 }
1776 
1777 static void ksz_get_strings(struct dsa_switch *ds, int port,
1778 			    u32 stringset, uint8_t *buf)
1779 {
1780 	struct ksz_device *dev = ds->priv;
1781 	int i;
1782 
1783 	if (stringset != ETH_SS_STATS)
1784 		return;
1785 
1786 	for (i = 0; i < dev->info->mib_cnt; i++) {
1787 		memcpy(buf + i * ETH_GSTRING_LEN,
1788 		       dev->info->mib_names[i].string, ETH_GSTRING_LEN);
1789 	}
1790 }
1791 
1792 static void ksz_update_port_member(struct ksz_device *dev, int port)
1793 {
1794 	struct ksz_port *p = &dev->ports[port];
1795 	struct dsa_switch *ds = dev->ds;
1796 	u8 port_member = 0, cpu_port;
1797 	const struct dsa_port *dp;
1798 	int i, j;
1799 
1800 	if (!dsa_is_user_port(ds, port))
1801 		return;
1802 
1803 	dp = dsa_to_port(ds, port);
1804 	cpu_port = BIT(dsa_upstream_port(ds, port));
1805 
1806 	for (i = 0; i < ds->num_ports; i++) {
1807 		const struct dsa_port *other_dp = dsa_to_port(ds, i);
1808 		struct ksz_port *other_p = &dev->ports[i];
1809 		u8 val = 0;
1810 
1811 		if (!dsa_is_user_port(ds, i))
1812 			continue;
1813 		if (port == i)
1814 			continue;
1815 		if (!dsa_port_bridge_same(dp, other_dp))
1816 			continue;
1817 		if (other_p->stp_state != BR_STATE_FORWARDING)
1818 			continue;
1819 
1820 		if (p->stp_state == BR_STATE_FORWARDING) {
1821 			val |= BIT(port);
1822 			port_member |= BIT(i);
1823 		}
1824 
1825 		/* Retain port [i]'s relationship to other ports than [port] */
1826 		for (j = 0; j < ds->num_ports; j++) {
1827 			const struct dsa_port *third_dp;
1828 			struct ksz_port *third_p;
1829 
1830 			if (j == i)
1831 				continue;
1832 			if (j == port)
1833 				continue;
1834 			if (!dsa_is_user_port(ds, j))
1835 				continue;
1836 			third_p = &dev->ports[j];
1837 			if (third_p->stp_state != BR_STATE_FORWARDING)
1838 				continue;
1839 			third_dp = dsa_to_port(ds, j);
1840 			if (dsa_port_bridge_same(other_dp, third_dp))
1841 				val |= BIT(j);
1842 		}
1843 
1844 		dev->dev_ops->cfg_port_member(dev, i, val | cpu_port);
1845 	}
1846 
1847 	dev->dev_ops->cfg_port_member(dev, port, port_member | cpu_port);
1848 }
1849 
1850 static int ksz_sw_mdio_read(struct mii_bus *bus, int addr, int regnum)
1851 {
1852 	struct ksz_device *dev = bus->priv;
1853 	u16 val;
1854 	int ret;
1855 
1856 	ret = dev->dev_ops->r_phy(dev, addr, regnum, &val);
1857 	if (ret < 0)
1858 		return ret;
1859 
1860 	return val;
1861 }
1862 
1863 static int ksz_sw_mdio_write(struct mii_bus *bus, int addr, int regnum,
1864 			     u16 val)
1865 {
1866 	struct ksz_device *dev = bus->priv;
1867 
1868 	return dev->dev_ops->w_phy(dev, addr, regnum, val);
1869 }
1870 
1871 static int ksz_irq_phy_setup(struct ksz_device *dev)
1872 {
1873 	struct dsa_switch *ds = dev->ds;
1874 	int phy;
1875 	int irq;
1876 	int ret;
1877 
1878 	for (phy = 0; phy < KSZ_MAX_NUM_PORTS; phy++) {
1879 		if (BIT(phy) & ds->phys_mii_mask) {
1880 			irq = irq_find_mapping(dev->ports[phy].pirq.domain,
1881 					       PORT_SRC_PHY_INT);
1882 			if (irq < 0) {
1883 				ret = irq;
1884 				goto out;
1885 			}
1886 			ds->slave_mii_bus->irq[phy] = irq;
1887 		}
1888 	}
1889 	return 0;
1890 out:
1891 	while (phy--)
1892 		if (BIT(phy) & ds->phys_mii_mask)
1893 			irq_dispose_mapping(ds->slave_mii_bus->irq[phy]);
1894 
1895 	return ret;
1896 }
1897 
1898 static void ksz_irq_phy_free(struct ksz_device *dev)
1899 {
1900 	struct dsa_switch *ds = dev->ds;
1901 	int phy;
1902 
1903 	for (phy = 0; phy < KSZ_MAX_NUM_PORTS; phy++)
1904 		if (BIT(phy) & ds->phys_mii_mask)
1905 			irq_dispose_mapping(ds->slave_mii_bus->irq[phy]);
1906 }
1907 
1908 static int ksz_mdio_register(struct ksz_device *dev)
1909 {
1910 	struct dsa_switch *ds = dev->ds;
1911 	struct device_node *mdio_np;
1912 	struct mii_bus *bus;
1913 	int ret;
1914 
1915 	mdio_np = of_get_child_by_name(dev->dev->of_node, "mdio");
1916 	if (!mdio_np)
1917 		return 0;
1918 
1919 	bus = devm_mdiobus_alloc(ds->dev);
1920 	if (!bus) {
1921 		of_node_put(mdio_np);
1922 		return -ENOMEM;
1923 	}
1924 
1925 	bus->priv = dev;
1926 	bus->read = ksz_sw_mdio_read;
1927 	bus->write = ksz_sw_mdio_write;
1928 	bus->name = "ksz slave smi";
1929 	snprintf(bus->id, MII_BUS_ID_SIZE, "SMI-%d", ds->index);
1930 	bus->parent = ds->dev;
1931 	bus->phy_mask = ~ds->phys_mii_mask;
1932 
1933 	ds->slave_mii_bus = bus;
1934 
1935 	if (dev->irq > 0) {
1936 		ret = ksz_irq_phy_setup(dev);
1937 		if (ret) {
1938 			of_node_put(mdio_np);
1939 			return ret;
1940 		}
1941 	}
1942 
1943 	ret = devm_of_mdiobus_register(ds->dev, bus, mdio_np);
1944 	if (ret) {
1945 		dev_err(ds->dev, "unable to register MDIO bus %s\n",
1946 			bus->id);
1947 		if (dev->irq > 0)
1948 			ksz_irq_phy_free(dev);
1949 	}
1950 
1951 	of_node_put(mdio_np);
1952 
1953 	return ret;
1954 }
1955 
1956 static void ksz_irq_mask(struct irq_data *d)
1957 {
1958 	struct ksz_irq *kirq = irq_data_get_irq_chip_data(d);
1959 
1960 	kirq->masked |= BIT(d->hwirq);
1961 }
1962 
1963 static void ksz_irq_unmask(struct irq_data *d)
1964 {
1965 	struct ksz_irq *kirq = irq_data_get_irq_chip_data(d);
1966 
1967 	kirq->masked &= ~BIT(d->hwirq);
1968 }
1969 
1970 static void ksz_irq_bus_lock(struct irq_data *d)
1971 {
1972 	struct ksz_irq *kirq  = irq_data_get_irq_chip_data(d);
1973 
1974 	mutex_lock(&kirq->dev->lock_irq);
1975 }
1976 
1977 static void ksz_irq_bus_sync_unlock(struct irq_data *d)
1978 {
1979 	struct ksz_irq *kirq  = irq_data_get_irq_chip_data(d);
1980 	struct ksz_device *dev = kirq->dev;
1981 	int ret;
1982 
1983 	ret = ksz_write32(dev, kirq->reg_mask, kirq->masked);
1984 	if (ret)
1985 		dev_err(dev->dev, "failed to change IRQ mask\n");
1986 
1987 	mutex_unlock(&dev->lock_irq);
1988 }
1989 
1990 static const struct irq_chip ksz_irq_chip = {
1991 	.name			= "ksz-irq",
1992 	.irq_mask		= ksz_irq_mask,
1993 	.irq_unmask		= ksz_irq_unmask,
1994 	.irq_bus_lock		= ksz_irq_bus_lock,
1995 	.irq_bus_sync_unlock	= ksz_irq_bus_sync_unlock,
1996 };
1997 
1998 static int ksz_irq_domain_map(struct irq_domain *d,
1999 			      unsigned int irq, irq_hw_number_t hwirq)
2000 {
2001 	irq_set_chip_data(irq, d->host_data);
2002 	irq_set_chip_and_handler(irq, &ksz_irq_chip, handle_level_irq);
2003 	irq_set_noprobe(irq);
2004 
2005 	return 0;
2006 }
2007 
2008 static const struct irq_domain_ops ksz_irq_domain_ops = {
2009 	.map	= ksz_irq_domain_map,
2010 	.xlate	= irq_domain_xlate_twocell,
2011 };
2012 
2013 static void ksz_irq_free(struct ksz_irq *kirq)
2014 {
2015 	int irq, virq;
2016 
2017 	free_irq(kirq->irq_num, kirq);
2018 
2019 	for (irq = 0; irq < kirq->nirqs; irq++) {
2020 		virq = irq_find_mapping(kirq->domain, irq);
2021 		irq_dispose_mapping(virq);
2022 	}
2023 
2024 	irq_domain_remove(kirq->domain);
2025 }
2026 
2027 static irqreturn_t ksz_irq_thread_fn(int irq, void *dev_id)
2028 {
2029 	struct ksz_irq *kirq = dev_id;
2030 	unsigned int nhandled = 0;
2031 	struct ksz_device *dev;
2032 	unsigned int sub_irq;
2033 	u8 data;
2034 	int ret;
2035 	u8 n;
2036 
2037 	dev = kirq->dev;
2038 
2039 	/* Read interrupt status register */
2040 	ret = ksz_read8(dev, kirq->reg_status, &data);
2041 	if (ret)
2042 		goto out;
2043 
2044 	for (n = 0; n < kirq->nirqs; ++n) {
2045 		if (data & BIT(n)) {
2046 			sub_irq = irq_find_mapping(kirq->domain, n);
2047 			handle_nested_irq(sub_irq);
2048 			++nhandled;
2049 		}
2050 	}
2051 out:
2052 	return (nhandled > 0 ? IRQ_HANDLED : IRQ_NONE);
2053 }
2054 
2055 static int ksz_irq_common_setup(struct ksz_device *dev, struct ksz_irq *kirq)
2056 {
2057 	int ret, n;
2058 
2059 	kirq->dev = dev;
2060 	kirq->masked = ~0;
2061 
2062 	kirq->domain = irq_domain_add_simple(dev->dev->of_node, kirq->nirqs, 0,
2063 					     &ksz_irq_domain_ops, kirq);
2064 	if (!kirq->domain)
2065 		return -ENOMEM;
2066 
2067 	for (n = 0; n < kirq->nirqs; n++)
2068 		irq_create_mapping(kirq->domain, n);
2069 
2070 	ret = request_threaded_irq(kirq->irq_num, NULL, ksz_irq_thread_fn,
2071 				   IRQF_ONESHOT, kirq->name, kirq);
2072 	if (ret)
2073 		goto out;
2074 
2075 	return 0;
2076 
2077 out:
2078 	ksz_irq_free(kirq);
2079 
2080 	return ret;
2081 }
2082 
2083 static int ksz_girq_setup(struct ksz_device *dev)
2084 {
2085 	struct ksz_irq *girq = &dev->girq;
2086 
2087 	girq->nirqs = dev->info->port_cnt;
2088 	girq->reg_mask = REG_SW_PORT_INT_MASK__1;
2089 	girq->reg_status = REG_SW_PORT_INT_STATUS__1;
2090 	snprintf(girq->name, sizeof(girq->name), "global_port_irq");
2091 
2092 	girq->irq_num = dev->irq;
2093 
2094 	return ksz_irq_common_setup(dev, girq);
2095 }
2096 
2097 static int ksz_pirq_setup(struct ksz_device *dev, u8 p)
2098 {
2099 	struct ksz_irq *pirq = &dev->ports[p].pirq;
2100 
2101 	pirq->nirqs = dev->info->port_nirqs;
2102 	pirq->reg_mask = dev->dev_ops->get_port_addr(p, REG_PORT_INT_MASK);
2103 	pirq->reg_status = dev->dev_ops->get_port_addr(p, REG_PORT_INT_STATUS);
2104 	snprintf(pirq->name, sizeof(pirq->name), "port_irq-%d", p);
2105 
2106 	pirq->irq_num = irq_find_mapping(dev->girq.domain, p);
2107 	if (pirq->irq_num < 0)
2108 		return pirq->irq_num;
2109 
2110 	return ksz_irq_common_setup(dev, pirq);
2111 }
2112 
2113 static int ksz_setup(struct dsa_switch *ds)
2114 {
2115 	struct ksz_device *dev = ds->priv;
2116 	struct dsa_port *dp;
2117 	struct ksz_port *p;
2118 	const u16 *regs;
2119 	int ret;
2120 
2121 	regs = dev->info->regs;
2122 
2123 	dev->vlan_cache = devm_kcalloc(dev->dev, sizeof(struct vlan_table),
2124 				       dev->info->num_vlans, GFP_KERNEL);
2125 	if (!dev->vlan_cache)
2126 		return -ENOMEM;
2127 
2128 	ret = dev->dev_ops->reset(dev);
2129 	if (ret) {
2130 		dev_err(ds->dev, "failed to reset switch\n");
2131 		return ret;
2132 	}
2133 
2134 	/* set broadcast storm protection 10% rate */
2135 	regmap_update_bits(ksz_regmap_16(dev), regs[S_BROADCAST_CTRL],
2136 			   BROADCAST_STORM_RATE,
2137 			   (BROADCAST_STORM_VALUE *
2138 			   BROADCAST_STORM_PROT_RATE) / 100);
2139 
2140 	dev->dev_ops->config_cpu_port(ds);
2141 
2142 	dev->dev_ops->enable_stp_addr(dev);
2143 
2144 	ds->num_tx_queues = dev->info->num_tx_queues;
2145 
2146 	regmap_update_bits(ksz_regmap_8(dev), regs[S_MULTICAST_CTRL],
2147 			   MULTICAST_STORM_DISABLE, MULTICAST_STORM_DISABLE);
2148 
2149 	ksz_init_mib_timer(dev);
2150 
2151 	ds->configure_vlan_while_not_filtering = false;
2152 
2153 	if (dev->dev_ops->setup) {
2154 		ret = dev->dev_ops->setup(ds);
2155 		if (ret)
2156 			return ret;
2157 	}
2158 
2159 	/* Start with learning disabled on standalone user ports, and enabled
2160 	 * on the CPU port. In lack of other finer mechanisms, learning on the
2161 	 * CPU port will avoid flooding bridge local addresses on the network
2162 	 * in some cases.
2163 	 */
2164 	p = &dev->ports[dev->cpu_port];
2165 	p->learning = true;
2166 
2167 	if (dev->irq > 0) {
2168 		ret = ksz_girq_setup(dev);
2169 		if (ret)
2170 			return ret;
2171 
2172 		dsa_switch_for_each_user_port(dp, dev->ds) {
2173 			ret = ksz_pirq_setup(dev, dp->index);
2174 			if (ret)
2175 				goto out_girq;
2176 
2177 			ret = ksz_ptp_irq_setup(ds, dp->index);
2178 			if (ret)
2179 				goto out_pirq;
2180 		}
2181 	}
2182 
2183 	ret = ksz_ptp_clock_register(ds);
2184 	if (ret) {
2185 		dev_err(dev->dev, "Failed to register PTP clock: %d\n", ret);
2186 		goto out_ptpirq;
2187 	}
2188 
2189 	ret = ksz_mdio_register(dev);
2190 	if (ret < 0) {
2191 		dev_err(dev->dev, "failed to register the mdio");
2192 		goto out_ptp_clock_unregister;
2193 	}
2194 
2195 	/* start switch */
2196 	regmap_update_bits(ksz_regmap_8(dev), regs[S_START_CTRL],
2197 			   SW_START, SW_START);
2198 
2199 	return 0;
2200 
2201 out_ptp_clock_unregister:
2202 	ksz_ptp_clock_unregister(ds);
2203 out_ptpirq:
2204 	if (dev->irq > 0)
2205 		dsa_switch_for_each_user_port(dp, dev->ds)
2206 			ksz_ptp_irq_free(ds, dp->index);
2207 out_pirq:
2208 	if (dev->irq > 0)
2209 		dsa_switch_for_each_user_port(dp, dev->ds)
2210 			ksz_irq_free(&dev->ports[dp->index].pirq);
2211 out_girq:
2212 	if (dev->irq > 0)
2213 		ksz_irq_free(&dev->girq);
2214 
2215 	return ret;
2216 }
2217 
2218 static void ksz_teardown(struct dsa_switch *ds)
2219 {
2220 	struct ksz_device *dev = ds->priv;
2221 	struct dsa_port *dp;
2222 
2223 	ksz_ptp_clock_unregister(ds);
2224 
2225 	if (dev->irq > 0) {
2226 		dsa_switch_for_each_user_port(dp, dev->ds) {
2227 			ksz_ptp_irq_free(ds, dp->index);
2228 
2229 			ksz_irq_free(&dev->ports[dp->index].pirq);
2230 		}
2231 
2232 		ksz_irq_free(&dev->girq);
2233 	}
2234 
2235 	if (dev->dev_ops->teardown)
2236 		dev->dev_ops->teardown(ds);
2237 }
2238 
2239 static void port_r_cnt(struct ksz_device *dev, int port)
2240 {
2241 	struct ksz_port_mib *mib = &dev->ports[port].mib;
2242 	u64 *dropped;
2243 
2244 	/* Some ports may not have MIB counters before SWITCH_COUNTER_NUM. */
2245 	while (mib->cnt_ptr < dev->info->reg_mib_cnt) {
2246 		dev->dev_ops->r_mib_cnt(dev, port, mib->cnt_ptr,
2247 					&mib->counters[mib->cnt_ptr]);
2248 		++mib->cnt_ptr;
2249 	}
2250 
2251 	/* last one in storage */
2252 	dropped = &mib->counters[dev->info->mib_cnt];
2253 
2254 	/* Some ports may not have MIB counters after SWITCH_COUNTER_NUM. */
2255 	while (mib->cnt_ptr < dev->info->mib_cnt) {
2256 		dev->dev_ops->r_mib_pkt(dev, port, mib->cnt_ptr,
2257 					dropped, &mib->counters[mib->cnt_ptr]);
2258 		++mib->cnt_ptr;
2259 	}
2260 	mib->cnt_ptr = 0;
2261 }
2262 
2263 static void ksz_mib_read_work(struct work_struct *work)
2264 {
2265 	struct ksz_device *dev = container_of(work, struct ksz_device,
2266 					      mib_read.work);
2267 	struct ksz_port_mib *mib;
2268 	struct ksz_port *p;
2269 	int i;
2270 
2271 	for (i = 0; i < dev->info->port_cnt; i++) {
2272 		if (dsa_is_unused_port(dev->ds, i))
2273 			continue;
2274 
2275 		p = &dev->ports[i];
2276 		mib = &p->mib;
2277 		mutex_lock(&mib->cnt_mutex);
2278 
2279 		/* Only read MIB counters when the port is told to do.
2280 		 * If not, read only dropped counters when link is not up.
2281 		 */
2282 		if (!p->read) {
2283 			const struct dsa_port *dp = dsa_to_port(dev->ds, i);
2284 
2285 			if (!netif_carrier_ok(dp->slave))
2286 				mib->cnt_ptr = dev->info->reg_mib_cnt;
2287 		}
2288 		port_r_cnt(dev, i);
2289 		p->read = false;
2290 
2291 		if (dev->dev_ops->r_mib_stat64)
2292 			dev->dev_ops->r_mib_stat64(dev, i);
2293 
2294 		mutex_unlock(&mib->cnt_mutex);
2295 	}
2296 
2297 	schedule_delayed_work(&dev->mib_read, dev->mib_read_interval);
2298 }
2299 
2300 void ksz_init_mib_timer(struct ksz_device *dev)
2301 {
2302 	int i;
2303 
2304 	INIT_DELAYED_WORK(&dev->mib_read, ksz_mib_read_work);
2305 
2306 	for (i = 0; i < dev->info->port_cnt; i++) {
2307 		struct ksz_port_mib *mib = &dev->ports[i].mib;
2308 
2309 		dev->dev_ops->port_init_cnt(dev, i);
2310 
2311 		mib->cnt_ptr = 0;
2312 		memset(mib->counters, 0, dev->info->mib_cnt * sizeof(u64));
2313 	}
2314 }
2315 
2316 static int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg)
2317 {
2318 	struct ksz_device *dev = ds->priv;
2319 	u16 val = 0xffff;
2320 	int ret;
2321 
2322 	ret = dev->dev_ops->r_phy(dev, addr, reg, &val);
2323 	if (ret)
2324 		return ret;
2325 
2326 	return val;
2327 }
2328 
2329 static int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
2330 {
2331 	struct ksz_device *dev = ds->priv;
2332 	int ret;
2333 
2334 	ret = dev->dev_ops->w_phy(dev, addr, reg, val);
2335 	if (ret)
2336 		return ret;
2337 
2338 	return 0;
2339 }
2340 
2341 static u32 ksz_get_phy_flags(struct dsa_switch *ds, int port)
2342 {
2343 	struct ksz_device *dev = ds->priv;
2344 
2345 	if (dev->chip_id == KSZ8830_CHIP_ID) {
2346 		/* Silicon Errata Sheet (DS80000830A):
2347 		 * Port 1 does not work with LinkMD Cable-Testing.
2348 		 * Port 1 does not respond to received PAUSE control frames.
2349 		 */
2350 		if (!port)
2351 			return MICREL_KSZ8_P1_ERRATA;
2352 	}
2353 
2354 	return 0;
2355 }
2356 
2357 static void ksz_mac_link_down(struct dsa_switch *ds, int port,
2358 			      unsigned int mode, phy_interface_t interface)
2359 {
2360 	struct ksz_device *dev = ds->priv;
2361 	struct ksz_port *p = &dev->ports[port];
2362 
2363 	/* Read all MIB counters when the link is going down. */
2364 	p->read = true;
2365 	/* timer started */
2366 	if (dev->mib_read_interval)
2367 		schedule_delayed_work(&dev->mib_read, 0);
2368 }
2369 
2370 static int ksz_sset_count(struct dsa_switch *ds, int port, int sset)
2371 {
2372 	struct ksz_device *dev = ds->priv;
2373 
2374 	if (sset != ETH_SS_STATS)
2375 		return 0;
2376 
2377 	return dev->info->mib_cnt;
2378 }
2379 
2380 static void ksz_get_ethtool_stats(struct dsa_switch *ds, int port,
2381 				  uint64_t *buf)
2382 {
2383 	const struct dsa_port *dp = dsa_to_port(ds, port);
2384 	struct ksz_device *dev = ds->priv;
2385 	struct ksz_port_mib *mib;
2386 
2387 	mib = &dev->ports[port].mib;
2388 	mutex_lock(&mib->cnt_mutex);
2389 
2390 	/* Only read dropped counters if no link. */
2391 	if (!netif_carrier_ok(dp->slave))
2392 		mib->cnt_ptr = dev->info->reg_mib_cnt;
2393 	port_r_cnt(dev, port);
2394 	memcpy(buf, mib->counters, dev->info->mib_cnt * sizeof(u64));
2395 	mutex_unlock(&mib->cnt_mutex);
2396 }
2397 
2398 static int ksz_port_bridge_join(struct dsa_switch *ds, int port,
2399 				struct dsa_bridge bridge,
2400 				bool *tx_fwd_offload,
2401 				struct netlink_ext_ack *extack)
2402 {
2403 	/* port_stp_state_set() will be called after to put the port in
2404 	 * appropriate state so there is no need to do anything.
2405 	 */
2406 
2407 	return 0;
2408 }
2409 
2410 static void ksz_port_bridge_leave(struct dsa_switch *ds, int port,
2411 				  struct dsa_bridge bridge)
2412 {
2413 	/* port_stp_state_set() will be called after to put the port in
2414 	 * forwarding state so there is no need to do anything.
2415 	 */
2416 }
2417 
2418 static void ksz_port_fast_age(struct dsa_switch *ds, int port)
2419 {
2420 	struct ksz_device *dev = ds->priv;
2421 
2422 	dev->dev_ops->flush_dyn_mac_table(dev, port);
2423 }
2424 
2425 static int ksz_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
2426 {
2427 	struct ksz_device *dev = ds->priv;
2428 
2429 	if (!dev->dev_ops->set_ageing_time)
2430 		return -EOPNOTSUPP;
2431 
2432 	return dev->dev_ops->set_ageing_time(dev, msecs);
2433 }
2434 
2435 static int ksz_port_fdb_add(struct dsa_switch *ds, int port,
2436 			    const unsigned char *addr, u16 vid,
2437 			    struct dsa_db db)
2438 {
2439 	struct ksz_device *dev = ds->priv;
2440 
2441 	if (!dev->dev_ops->fdb_add)
2442 		return -EOPNOTSUPP;
2443 
2444 	return dev->dev_ops->fdb_add(dev, port, addr, vid, db);
2445 }
2446 
2447 static int ksz_port_fdb_del(struct dsa_switch *ds, int port,
2448 			    const unsigned char *addr,
2449 			    u16 vid, struct dsa_db db)
2450 {
2451 	struct ksz_device *dev = ds->priv;
2452 
2453 	if (!dev->dev_ops->fdb_del)
2454 		return -EOPNOTSUPP;
2455 
2456 	return dev->dev_ops->fdb_del(dev, port, addr, vid, db);
2457 }
2458 
2459 static int ksz_port_fdb_dump(struct dsa_switch *ds, int port,
2460 			     dsa_fdb_dump_cb_t *cb, void *data)
2461 {
2462 	struct ksz_device *dev = ds->priv;
2463 
2464 	if (!dev->dev_ops->fdb_dump)
2465 		return -EOPNOTSUPP;
2466 
2467 	return dev->dev_ops->fdb_dump(dev, port, cb, data);
2468 }
2469 
2470 static int ksz_port_mdb_add(struct dsa_switch *ds, int port,
2471 			    const struct switchdev_obj_port_mdb *mdb,
2472 			    struct dsa_db db)
2473 {
2474 	struct ksz_device *dev = ds->priv;
2475 
2476 	if (!dev->dev_ops->mdb_add)
2477 		return -EOPNOTSUPP;
2478 
2479 	return dev->dev_ops->mdb_add(dev, port, mdb, db);
2480 }
2481 
2482 static int ksz_port_mdb_del(struct dsa_switch *ds, int port,
2483 			    const struct switchdev_obj_port_mdb *mdb,
2484 			    struct dsa_db db)
2485 {
2486 	struct ksz_device *dev = ds->priv;
2487 
2488 	if (!dev->dev_ops->mdb_del)
2489 		return -EOPNOTSUPP;
2490 
2491 	return dev->dev_ops->mdb_del(dev, port, mdb, db);
2492 }
2493 
2494 static int ksz_enable_port(struct dsa_switch *ds, int port,
2495 			   struct phy_device *phy)
2496 {
2497 	struct ksz_device *dev = ds->priv;
2498 
2499 	if (!dsa_is_user_port(ds, port))
2500 		return 0;
2501 
2502 	/* setup slave port */
2503 	dev->dev_ops->port_setup(dev, port, false);
2504 
2505 	/* port_stp_state_set() will be called after to enable the port so
2506 	 * there is no need to do anything.
2507 	 */
2508 
2509 	return 0;
2510 }
2511 
2512 void ksz_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
2513 {
2514 	struct ksz_device *dev = ds->priv;
2515 	struct ksz_port *p;
2516 	const u16 *regs;
2517 	u8 data;
2518 
2519 	regs = dev->info->regs;
2520 
2521 	ksz_pread8(dev, port, regs[P_STP_CTRL], &data);
2522 	data &= ~(PORT_TX_ENABLE | PORT_RX_ENABLE | PORT_LEARN_DISABLE);
2523 
2524 	p = &dev->ports[port];
2525 
2526 	switch (state) {
2527 	case BR_STATE_DISABLED:
2528 		data |= PORT_LEARN_DISABLE;
2529 		break;
2530 	case BR_STATE_LISTENING:
2531 		data |= (PORT_RX_ENABLE | PORT_LEARN_DISABLE);
2532 		break;
2533 	case BR_STATE_LEARNING:
2534 		data |= PORT_RX_ENABLE;
2535 		if (!p->learning)
2536 			data |= PORT_LEARN_DISABLE;
2537 		break;
2538 	case BR_STATE_FORWARDING:
2539 		data |= (PORT_TX_ENABLE | PORT_RX_ENABLE);
2540 		if (!p->learning)
2541 			data |= PORT_LEARN_DISABLE;
2542 		break;
2543 	case BR_STATE_BLOCKING:
2544 		data |= PORT_LEARN_DISABLE;
2545 		break;
2546 	default:
2547 		dev_err(ds->dev, "invalid STP state: %d\n", state);
2548 		return;
2549 	}
2550 
2551 	ksz_pwrite8(dev, port, regs[P_STP_CTRL], data);
2552 
2553 	p->stp_state = state;
2554 
2555 	ksz_update_port_member(dev, port);
2556 }
2557 
2558 static int ksz_port_pre_bridge_flags(struct dsa_switch *ds, int port,
2559 				     struct switchdev_brport_flags flags,
2560 				     struct netlink_ext_ack *extack)
2561 {
2562 	if (flags.mask & ~BR_LEARNING)
2563 		return -EINVAL;
2564 
2565 	return 0;
2566 }
2567 
2568 static int ksz_port_bridge_flags(struct dsa_switch *ds, int port,
2569 				 struct switchdev_brport_flags flags,
2570 				 struct netlink_ext_ack *extack)
2571 {
2572 	struct ksz_device *dev = ds->priv;
2573 	struct ksz_port *p = &dev->ports[port];
2574 
2575 	if (flags.mask & BR_LEARNING) {
2576 		p->learning = !!(flags.val & BR_LEARNING);
2577 
2578 		/* Make the change take effect immediately */
2579 		ksz_port_stp_state_set(ds, port, p->stp_state);
2580 	}
2581 
2582 	return 0;
2583 }
2584 
2585 static enum dsa_tag_protocol ksz_get_tag_protocol(struct dsa_switch *ds,
2586 						  int port,
2587 						  enum dsa_tag_protocol mp)
2588 {
2589 	struct ksz_device *dev = ds->priv;
2590 	enum dsa_tag_protocol proto = DSA_TAG_PROTO_NONE;
2591 
2592 	if (dev->chip_id == KSZ8795_CHIP_ID ||
2593 	    dev->chip_id == KSZ8794_CHIP_ID ||
2594 	    dev->chip_id == KSZ8765_CHIP_ID)
2595 		proto = DSA_TAG_PROTO_KSZ8795;
2596 
2597 	if (dev->chip_id == KSZ8830_CHIP_ID ||
2598 	    dev->chip_id == KSZ8563_CHIP_ID ||
2599 	    dev->chip_id == KSZ9893_CHIP_ID ||
2600 	    dev->chip_id == KSZ9563_CHIP_ID)
2601 		proto = DSA_TAG_PROTO_KSZ9893;
2602 
2603 	if (dev->chip_id == KSZ9477_CHIP_ID ||
2604 	    dev->chip_id == KSZ9896_CHIP_ID ||
2605 	    dev->chip_id == KSZ9897_CHIP_ID ||
2606 	    dev->chip_id == KSZ9567_CHIP_ID)
2607 		proto = DSA_TAG_PROTO_KSZ9477;
2608 
2609 	if (is_lan937x(dev))
2610 		proto = DSA_TAG_PROTO_LAN937X_VALUE;
2611 
2612 	return proto;
2613 }
2614 
2615 static int ksz_connect_tag_protocol(struct dsa_switch *ds,
2616 				    enum dsa_tag_protocol proto)
2617 {
2618 	struct ksz_tagger_data *tagger_data;
2619 
2620 	tagger_data = ksz_tagger_data(ds);
2621 	tagger_data->xmit_work_fn = ksz_port_deferred_xmit;
2622 
2623 	return 0;
2624 }
2625 
2626 static int ksz_port_vlan_filtering(struct dsa_switch *ds, int port,
2627 				   bool flag, struct netlink_ext_ack *extack)
2628 {
2629 	struct ksz_device *dev = ds->priv;
2630 
2631 	if (!dev->dev_ops->vlan_filtering)
2632 		return -EOPNOTSUPP;
2633 
2634 	return dev->dev_ops->vlan_filtering(dev, port, flag, extack);
2635 }
2636 
2637 static int ksz_port_vlan_add(struct dsa_switch *ds, int port,
2638 			     const struct switchdev_obj_port_vlan *vlan,
2639 			     struct netlink_ext_ack *extack)
2640 {
2641 	struct ksz_device *dev = ds->priv;
2642 
2643 	if (!dev->dev_ops->vlan_add)
2644 		return -EOPNOTSUPP;
2645 
2646 	return dev->dev_ops->vlan_add(dev, port, vlan, extack);
2647 }
2648 
2649 static int ksz_port_vlan_del(struct dsa_switch *ds, int port,
2650 			     const struct switchdev_obj_port_vlan *vlan)
2651 {
2652 	struct ksz_device *dev = ds->priv;
2653 
2654 	if (!dev->dev_ops->vlan_del)
2655 		return -EOPNOTSUPP;
2656 
2657 	return dev->dev_ops->vlan_del(dev, port, vlan);
2658 }
2659 
2660 static int ksz_port_mirror_add(struct dsa_switch *ds, int port,
2661 			       struct dsa_mall_mirror_tc_entry *mirror,
2662 			       bool ingress, struct netlink_ext_ack *extack)
2663 {
2664 	struct ksz_device *dev = ds->priv;
2665 
2666 	if (!dev->dev_ops->mirror_add)
2667 		return -EOPNOTSUPP;
2668 
2669 	return dev->dev_ops->mirror_add(dev, port, mirror, ingress, extack);
2670 }
2671 
2672 static void ksz_port_mirror_del(struct dsa_switch *ds, int port,
2673 				struct dsa_mall_mirror_tc_entry *mirror)
2674 {
2675 	struct ksz_device *dev = ds->priv;
2676 
2677 	if (dev->dev_ops->mirror_del)
2678 		dev->dev_ops->mirror_del(dev, port, mirror);
2679 }
2680 
2681 static int ksz_change_mtu(struct dsa_switch *ds, int port, int mtu)
2682 {
2683 	struct ksz_device *dev = ds->priv;
2684 
2685 	if (!dev->dev_ops->change_mtu)
2686 		return -EOPNOTSUPP;
2687 
2688 	return dev->dev_ops->change_mtu(dev, port, mtu);
2689 }
2690 
2691 static int ksz_max_mtu(struct dsa_switch *ds, int port)
2692 {
2693 	struct ksz_device *dev = ds->priv;
2694 
2695 	switch (dev->chip_id) {
2696 	case KSZ8795_CHIP_ID:
2697 	case KSZ8794_CHIP_ID:
2698 	case KSZ8765_CHIP_ID:
2699 		return KSZ8795_HUGE_PACKET_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
2700 	case KSZ8830_CHIP_ID:
2701 		return KSZ8863_HUGE_PACKET_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
2702 	case KSZ8563_CHIP_ID:
2703 	case KSZ9477_CHIP_ID:
2704 	case KSZ9563_CHIP_ID:
2705 	case KSZ9567_CHIP_ID:
2706 	case KSZ9893_CHIP_ID:
2707 	case KSZ9896_CHIP_ID:
2708 	case KSZ9897_CHIP_ID:
2709 	case LAN9370_CHIP_ID:
2710 	case LAN9371_CHIP_ID:
2711 	case LAN9372_CHIP_ID:
2712 	case LAN9373_CHIP_ID:
2713 	case LAN9374_CHIP_ID:
2714 		return KSZ9477_MAX_FRAME_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
2715 	}
2716 
2717 	return -EOPNOTSUPP;
2718 }
2719 
2720 static int ksz_validate_eee(struct dsa_switch *ds, int port)
2721 {
2722 	struct ksz_device *dev = ds->priv;
2723 
2724 	if (!dev->info->internal_phy[port])
2725 		return -EOPNOTSUPP;
2726 
2727 	switch (dev->chip_id) {
2728 	case KSZ8563_CHIP_ID:
2729 	case KSZ9477_CHIP_ID:
2730 	case KSZ9563_CHIP_ID:
2731 	case KSZ9567_CHIP_ID:
2732 	case KSZ9893_CHIP_ID:
2733 	case KSZ9896_CHIP_ID:
2734 	case KSZ9897_CHIP_ID:
2735 		return 0;
2736 	}
2737 
2738 	return -EOPNOTSUPP;
2739 }
2740 
2741 static int ksz_get_mac_eee(struct dsa_switch *ds, int port,
2742 			   struct ethtool_eee *e)
2743 {
2744 	int ret;
2745 
2746 	ret = ksz_validate_eee(ds, port);
2747 	if (ret)
2748 		return ret;
2749 
2750 	/* There is no documented control of Tx LPI configuration. */
2751 	e->tx_lpi_enabled = true;
2752 
2753 	/* There is no documented control of Tx LPI timer. According to tests
2754 	 * Tx LPI timer seems to be set by default to minimal value.
2755 	 */
2756 	e->tx_lpi_timer = 0;
2757 
2758 	return 0;
2759 }
2760 
2761 static int ksz_set_mac_eee(struct dsa_switch *ds, int port,
2762 			   struct ethtool_eee *e)
2763 {
2764 	struct ksz_device *dev = ds->priv;
2765 	int ret;
2766 
2767 	ret = ksz_validate_eee(ds, port);
2768 	if (ret)
2769 		return ret;
2770 
2771 	if (!e->tx_lpi_enabled) {
2772 		dev_err(dev->dev, "Disabling EEE Tx LPI is not supported\n");
2773 		return -EINVAL;
2774 	}
2775 
2776 	if (e->tx_lpi_timer) {
2777 		dev_err(dev->dev, "Setting EEE Tx LPI timer is not supported\n");
2778 		return -EINVAL;
2779 	}
2780 
2781 	return 0;
2782 }
2783 
2784 static void ksz_set_xmii(struct ksz_device *dev, int port,
2785 			 phy_interface_t interface)
2786 {
2787 	const u8 *bitval = dev->info->xmii_ctrl1;
2788 	struct ksz_port *p = &dev->ports[port];
2789 	const u16 *regs = dev->info->regs;
2790 	u8 data8;
2791 
2792 	ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8);
2793 
2794 	data8 &= ~(P_MII_SEL_M | P_RGMII_ID_IG_ENABLE |
2795 		   P_RGMII_ID_EG_ENABLE);
2796 
2797 	switch (interface) {
2798 	case PHY_INTERFACE_MODE_MII:
2799 		data8 |= bitval[P_MII_SEL];
2800 		break;
2801 	case PHY_INTERFACE_MODE_RMII:
2802 		data8 |= bitval[P_RMII_SEL];
2803 		break;
2804 	case PHY_INTERFACE_MODE_GMII:
2805 		data8 |= bitval[P_GMII_SEL];
2806 		break;
2807 	case PHY_INTERFACE_MODE_RGMII:
2808 	case PHY_INTERFACE_MODE_RGMII_ID:
2809 	case PHY_INTERFACE_MODE_RGMII_TXID:
2810 	case PHY_INTERFACE_MODE_RGMII_RXID:
2811 		data8 |= bitval[P_RGMII_SEL];
2812 		/* On KSZ9893, disable RGMII in-band status support */
2813 		if (dev->chip_id == KSZ9893_CHIP_ID ||
2814 		    dev->chip_id == KSZ8563_CHIP_ID ||
2815 		    dev->chip_id == KSZ9563_CHIP_ID)
2816 			data8 &= ~P_MII_MAC_MODE;
2817 		break;
2818 	default:
2819 		dev_err(dev->dev, "Unsupported interface '%s' for port %d\n",
2820 			phy_modes(interface), port);
2821 		return;
2822 	}
2823 
2824 	if (p->rgmii_tx_val)
2825 		data8 |= P_RGMII_ID_EG_ENABLE;
2826 
2827 	if (p->rgmii_rx_val)
2828 		data8 |= P_RGMII_ID_IG_ENABLE;
2829 
2830 	/* Write the updated value */
2831 	ksz_pwrite8(dev, port, regs[P_XMII_CTRL_1], data8);
2832 }
2833 
2834 phy_interface_t ksz_get_xmii(struct ksz_device *dev, int port, bool gbit)
2835 {
2836 	const u8 *bitval = dev->info->xmii_ctrl1;
2837 	const u16 *regs = dev->info->regs;
2838 	phy_interface_t interface;
2839 	u8 data8;
2840 	u8 val;
2841 
2842 	ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8);
2843 
2844 	val = FIELD_GET(P_MII_SEL_M, data8);
2845 
2846 	if (val == bitval[P_MII_SEL]) {
2847 		if (gbit)
2848 			interface = PHY_INTERFACE_MODE_GMII;
2849 		else
2850 			interface = PHY_INTERFACE_MODE_MII;
2851 	} else if (val == bitval[P_RMII_SEL]) {
2852 		interface = PHY_INTERFACE_MODE_RGMII;
2853 	} else {
2854 		interface = PHY_INTERFACE_MODE_RGMII;
2855 		if (data8 & P_RGMII_ID_EG_ENABLE)
2856 			interface = PHY_INTERFACE_MODE_RGMII_TXID;
2857 		if (data8 & P_RGMII_ID_IG_ENABLE) {
2858 			interface = PHY_INTERFACE_MODE_RGMII_RXID;
2859 			if (data8 & P_RGMII_ID_EG_ENABLE)
2860 				interface = PHY_INTERFACE_MODE_RGMII_ID;
2861 		}
2862 	}
2863 
2864 	return interface;
2865 }
2866 
2867 static void ksz_phylink_mac_config(struct dsa_switch *ds, int port,
2868 				   unsigned int mode,
2869 				   const struct phylink_link_state *state)
2870 {
2871 	struct ksz_device *dev = ds->priv;
2872 
2873 	if (ksz_is_ksz88x3(dev))
2874 		return;
2875 
2876 	/* Internal PHYs */
2877 	if (dev->info->internal_phy[port])
2878 		return;
2879 
2880 	if (phylink_autoneg_inband(mode)) {
2881 		dev_err(dev->dev, "In-band AN not supported!\n");
2882 		return;
2883 	}
2884 
2885 	ksz_set_xmii(dev, port, state->interface);
2886 
2887 	if (dev->dev_ops->phylink_mac_config)
2888 		dev->dev_ops->phylink_mac_config(dev, port, mode, state);
2889 
2890 	if (dev->dev_ops->setup_rgmii_delay)
2891 		dev->dev_ops->setup_rgmii_delay(dev, port);
2892 }
2893 
2894 bool ksz_get_gbit(struct ksz_device *dev, int port)
2895 {
2896 	const u8 *bitval = dev->info->xmii_ctrl1;
2897 	const u16 *regs = dev->info->regs;
2898 	bool gbit = false;
2899 	u8 data8;
2900 	bool val;
2901 
2902 	ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8);
2903 
2904 	val = FIELD_GET(P_GMII_1GBIT_M, data8);
2905 
2906 	if (val == bitval[P_GMII_1GBIT])
2907 		gbit = true;
2908 
2909 	return gbit;
2910 }
2911 
2912 static void ksz_set_gbit(struct ksz_device *dev, int port, bool gbit)
2913 {
2914 	const u8 *bitval = dev->info->xmii_ctrl1;
2915 	const u16 *regs = dev->info->regs;
2916 	u8 data8;
2917 
2918 	ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8);
2919 
2920 	data8 &= ~P_GMII_1GBIT_M;
2921 
2922 	if (gbit)
2923 		data8 |= FIELD_PREP(P_GMII_1GBIT_M, bitval[P_GMII_1GBIT]);
2924 	else
2925 		data8 |= FIELD_PREP(P_GMII_1GBIT_M, bitval[P_GMII_NOT_1GBIT]);
2926 
2927 	/* Write the updated value */
2928 	ksz_pwrite8(dev, port, regs[P_XMII_CTRL_1], data8);
2929 }
2930 
2931 static void ksz_set_100_10mbit(struct ksz_device *dev, int port, int speed)
2932 {
2933 	const u8 *bitval = dev->info->xmii_ctrl0;
2934 	const u16 *regs = dev->info->regs;
2935 	u8 data8;
2936 
2937 	ksz_pread8(dev, port, regs[P_XMII_CTRL_0], &data8);
2938 
2939 	data8 &= ~P_MII_100MBIT_M;
2940 
2941 	if (speed == SPEED_100)
2942 		data8 |= FIELD_PREP(P_MII_100MBIT_M, bitval[P_MII_100MBIT]);
2943 	else
2944 		data8 |= FIELD_PREP(P_MII_100MBIT_M, bitval[P_MII_10MBIT]);
2945 
2946 	/* Write the updated value */
2947 	ksz_pwrite8(dev, port, regs[P_XMII_CTRL_0], data8);
2948 }
2949 
2950 static void ksz_port_set_xmii_speed(struct ksz_device *dev, int port, int speed)
2951 {
2952 	if (speed == SPEED_1000)
2953 		ksz_set_gbit(dev, port, true);
2954 	else
2955 		ksz_set_gbit(dev, port, false);
2956 
2957 	if (speed == SPEED_100 || speed == SPEED_10)
2958 		ksz_set_100_10mbit(dev, port, speed);
2959 }
2960 
2961 static void ksz_duplex_flowctrl(struct ksz_device *dev, int port, int duplex,
2962 				bool tx_pause, bool rx_pause)
2963 {
2964 	const u8 *bitval = dev->info->xmii_ctrl0;
2965 	const u32 *masks = dev->info->masks;
2966 	const u16 *regs = dev->info->regs;
2967 	u8 mask;
2968 	u8 val;
2969 
2970 	mask = P_MII_DUPLEX_M | masks[P_MII_TX_FLOW_CTRL] |
2971 	       masks[P_MII_RX_FLOW_CTRL];
2972 
2973 	if (duplex == DUPLEX_FULL)
2974 		val = FIELD_PREP(P_MII_DUPLEX_M, bitval[P_MII_FULL_DUPLEX]);
2975 	else
2976 		val = FIELD_PREP(P_MII_DUPLEX_M, bitval[P_MII_HALF_DUPLEX]);
2977 
2978 	if (tx_pause)
2979 		val |= masks[P_MII_TX_FLOW_CTRL];
2980 
2981 	if (rx_pause)
2982 		val |= masks[P_MII_RX_FLOW_CTRL];
2983 
2984 	ksz_prmw8(dev, port, regs[P_XMII_CTRL_0], mask, val);
2985 }
2986 
2987 static void ksz9477_phylink_mac_link_up(struct ksz_device *dev, int port,
2988 					unsigned int mode,
2989 					phy_interface_t interface,
2990 					struct phy_device *phydev, int speed,
2991 					int duplex, bool tx_pause,
2992 					bool rx_pause)
2993 {
2994 	struct ksz_port *p;
2995 
2996 	p = &dev->ports[port];
2997 
2998 	/* Internal PHYs */
2999 	if (dev->info->internal_phy[port])
3000 		return;
3001 
3002 	p->phydev.speed = speed;
3003 
3004 	ksz_port_set_xmii_speed(dev, port, speed);
3005 
3006 	ksz_duplex_flowctrl(dev, port, duplex, tx_pause, rx_pause);
3007 }
3008 
3009 static void ksz_phylink_mac_link_up(struct dsa_switch *ds, int port,
3010 				    unsigned int mode,
3011 				    phy_interface_t interface,
3012 				    struct phy_device *phydev, int speed,
3013 				    int duplex, bool tx_pause, bool rx_pause)
3014 {
3015 	struct ksz_device *dev = ds->priv;
3016 
3017 	if (dev->dev_ops->phylink_mac_link_up)
3018 		dev->dev_ops->phylink_mac_link_up(dev, port, mode, interface,
3019 						  phydev, speed, duplex,
3020 						  tx_pause, rx_pause);
3021 }
3022 
3023 static int ksz_switch_detect(struct ksz_device *dev)
3024 {
3025 	u8 id1, id2, id4;
3026 	u16 id16;
3027 	u32 id32;
3028 	int ret;
3029 
3030 	/* read chip id */
3031 	ret = ksz_read16(dev, REG_CHIP_ID0, &id16);
3032 	if (ret)
3033 		return ret;
3034 
3035 	id1 = FIELD_GET(SW_FAMILY_ID_M, id16);
3036 	id2 = FIELD_GET(SW_CHIP_ID_M, id16);
3037 
3038 	switch (id1) {
3039 	case KSZ87_FAMILY_ID:
3040 		if (id2 == KSZ87_CHIP_ID_95) {
3041 			u8 val;
3042 
3043 			dev->chip_id = KSZ8795_CHIP_ID;
3044 
3045 			ksz_read8(dev, KSZ8_PORT_STATUS_0, &val);
3046 			if (val & KSZ8_PORT_FIBER_MODE)
3047 				dev->chip_id = KSZ8765_CHIP_ID;
3048 		} else if (id2 == KSZ87_CHIP_ID_94) {
3049 			dev->chip_id = KSZ8794_CHIP_ID;
3050 		} else {
3051 			return -ENODEV;
3052 		}
3053 		break;
3054 	case KSZ88_FAMILY_ID:
3055 		if (id2 == KSZ88_CHIP_ID_63)
3056 			dev->chip_id = KSZ8830_CHIP_ID;
3057 		else
3058 			return -ENODEV;
3059 		break;
3060 	default:
3061 		ret = ksz_read32(dev, REG_CHIP_ID0, &id32);
3062 		if (ret)
3063 			return ret;
3064 
3065 		dev->chip_rev = FIELD_GET(SW_REV_ID_M, id32);
3066 		id32 &= ~0xFF;
3067 
3068 		switch (id32) {
3069 		case KSZ9477_CHIP_ID:
3070 		case KSZ9896_CHIP_ID:
3071 		case KSZ9897_CHIP_ID:
3072 		case KSZ9567_CHIP_ID:
3073 		case LAN9370_CHIP_ID:
3074 		case LAN9371_CHIP_ID:
3075 		case LAN9372_CHIP_ID:
3076 		case LAN9373_CHIP_ID:
3077 		case LAN9374_CHIP_ID:
3078 			dev->chip_id = id32;
3079 			break;
3080 		case KSZ9893_CHIP_ID:
3081 			ret = ksz_read8(dev, REG_CHIP_ID4,
3082 					&id4);
3083 			if (ret)
3084 				return ret;
3085 
3086 			if (id4 == SKU_ID_KSZ8563)
3087 				dev->chip_id = KSZ8563_CHIP_ID;
3088 			else if (id4 == SKU_ID_KSZ9563)
3089 				dev->chip_id = KSZ9563_CHIP_ID;
3090 			else
3091 				dev->chip_id = KSZ9893_CHIP_ID;
3092 
3093 			break;
3094 		default:
3095 			dev_err(dev->dev,
3096 				"unsupported switch detected %x)\n", id32);
3097 			return -ENODEV;
3098 		}
3099 	}
3100 	return 0;
3101 }
3102 
3103 /* Bandwidth is calculated by idle slope/transmission speed. Then the Bandwidth
3104  * is converted to Hex-decimal using the successive multiplication method. On
3105  * every step, integer part is taken and decimal part is carry forwarded.
3106  */
3107 static int cinc_cal(s32 idle_slope, s32 send_slope, u32 *bw)
3108 {
3109 	u32 cinc = 0;
3110 	u32 txrate;
3111 	u32 rate;
3112 	u8 temp;
3113 	u8 i;
3114 
3115 	txrate = idle_slope - send_slope;
3116 
3117 	if (!txrate)
3118 		return -EINVAL;
3119 
3120 	rate = idle_slope;
3121 
3122 	/* 24 bit register */
3123 	for (i = 0; i < 6; i++) {
3124 		rate = rate * 16;
3125 
3126 		temp = rate / txrate;
3127 
3128 		rate %= txrate;
3129 
3130 		cinc = ((cinc << 4) | temp);
3131 	}
3132 
3133 	*bw = cinc;
3134 
3135 	return 0;
3136 }
3137 
3138 static int ksz_setup_tc_mode(struct ksz_device *dev, int port, u8 scheduler,
3139 			     u8 shaper)
3140 {
3141 	return ksz_pwrite8(dev, port, REG_PORT_MTI_QUEUE_CTRL_0,
3142 			   FIELD_PREP(MTI_SCHEDULE_MODE_M, scheduler) |
3143 			   FIELD_PREP(MTI_SHAPING_M, shaper));
3144 }
3145 
3146 static int ksz_setup_tc_cbs(struct dsa_switch *ds, int port,
3147 			    struct tc_cbs_qopt_offload *qopt)
3148 {
3149 	struct ksz_device *dev = ds->priv;
3150 	int ret;
3151 	u32 bw;
3152 
3153 	if (!dev->info->tc_cbs_supported)
3154 		return -EOPNOTSUPP;
3155 
3156 	if (qopt->queue > dev->info->num_tx_queues)
3157 		return -EINVAL;
3158 
3159 	/* Queue Selection */
3160 	ret = ksz_pwrite32(dev, port, REG_PORT_MTI_QUEUE_INDEX__4, qopt->queue);
3161 	if (ret)
3162 		return ret;
3163 
3164 	if (!qopt->enable)
3165 		return ksz_setup_tc_mode(dev, port, MTI_SCHEDULE_WRR,
3166 					 MTI_SHAPING_OFF);
3167 
3168 	/* High Credit */
3169 	ret = ksz_pwrite16(dev, port, REG_PORT_MTI_HI_WATER_MARK,
3170 			   qopt->hicredit);
3171 	if (ret)
3172 		return ret;
3173 
3174 	/* Low Credit */
3175 	ret = ksz_pwrite16(dev, port, REG_PORT_MTI_LO_WATER_MARK,
3176 			   qopt->locredit);
3177 	if (ret)
3178 		return ret;
3179 
3180 	/* Credit Increment Register */
3181 	ret = cinc_cal(qopt->idleslope, qopt->sendslope, &bw);
3182 	if (ret)
3183 		return ret;
3184 
3185 	if (dev->dev_ops->tc_cbs_set_cinc) {
3186 		ret = dev->dev_ops->tc_cbs_set_cinc(dev, port, bw);
3187 		if (ret)
3188 			return ret;
3189 	}
3190 
3191 	return ksz_setup_tc_mode(dev, port, MTI_SCHEDULE_STRICT_PRIO,
3192 				 MTI_SHAPING_SRP);
3193 }
3194 
3195 static int ksz_disable_egress_rate_limit(struct ksz_device *dev, int port)
3196 {
3197 	int queue, ret;
3198 
3199 	/* Configuration will not take effect until the last Port Queue X
3200 	 * Egress Limit Control Register is written.
3201 	 */
3202 	for (queue = 0; queue < dev->info->num_tx_queues; queue++) {
3203 		ret = ksz_pwrite8(dev, port, KSZ9477_REG_PORT_OUT_RATE_0 + queue,
3204 				  KSZ9477_OUT_RATE_NO_LIMIT);
3205 		if (ret)
3206 			return ret;
3207 	}
3208 
3209 	return 0;
3210 }
3211 
3212 static int ksz_ets_band_to_queue(struct tc_ets_qopt_offload_replace_params *p,
3213 				 int band)
3214 {
3215 	/* Compared to queues, bands prioritize packets differently. In strict
3216 	 * priority mode, the lowest priority is assigned to Queue 0 while the
3217 	 * highest priority is given to Band 0.
3218 	 */
3219 	return p->bands - 1 - band;
3220 }
3221 
3222 static int ksz_queue_set_strict(struct ksz_device *dev, int port, int queue)
3223 {
3224 	int ret;
3225 
3226 	ret = ksz_pwrite32(dev, port, REG_PORT_MTI_QUEUE_INDEX__4, queue);
3227 	if (ret)
3228 		return ret;
3229 
3230 	return ksz_setup_tc_mode(dev, port, MTI_SCHEDULE_STRICT_PRIO,
3231 				 MTI_SHAPING_OFF);
3232 }
3233 
3234 static int ksz_queue_set_wrr(struct ksz_device *dev, int port, int queue,
3235 			     int weight)
3236 {
3237 	int ret;
3238 
3239 	ret = ksz_pwrite32(dev, port, REG_PORT_MTI_QUEUE_INDEX__4, queue);
3240 	if (ret)
3241 		return ret;
3242 
3243 	ret = ksz_setup_tc_mode(dev, port, MTI_SCHEDULE_WRR,
3244 				MTI_SHAPING_OFF);
3245 	if (ret)
3246 		return ret;
3247 
3248 	return ksz_pwrite8(dev, port, KSZ9477_PORT_MTI_QUEUE_CTRL_1, weight);
3249 }
3250 
3251 static int ksz_tc_ets_add(struct ksz_device *dev, int port,
3252 			  struct tc_ets_qopt_offload_replace_params *p)
3253 {
3254 	int ret, band, tc_prio;
3255 	u32 queue_map = 0;
3256 
3257 	/* In order to ensure proper prioritization, it is necessary to set the
3258 	 * rate limit for the related queue to zero. Otherwise strict priority
3259 	 * or WRR mode will not work. This is a hardware limitation.
3260 	 */
3261 	ret = ksz_disable_egress_rate_limit(dev, port);
3262 	if (ret)
3263 		return ret;
3264 
3265 	/* Configure queue scheduling mode for all bands. Currently only strict
3266 	 * prio mode is supported.
3267 	 */
3268 	for (band = 0; band < p->bands; band++) {
3269 		int queue = ksz_ets_band_to_queue(p, band);
3270 
3271 		ret = ksz_queue_set_strict(dev, port, queue);
3272 		if (ret)
3273 			return ret;
3274 	}
3275 
3276 	/* Configure the mapping between traffic classes and queues. Note:
3277 	 * priomap variable support 16 traffic classes, but the chip can handle
3278 	 * only 8 classes.
3279 	 */
3280 	for (tc_prio = 0; tc_prio < ARRAY_SIZE(p->priomap); tc_prio++) {
3281 		int queue;
3282 
3283 		if (tc_prio > KSZ9477_MAX_TC_PRIO)
3284 			break;
3285 
3286 		queue = ksz_ets_band_to_queue(p, p->priomap[tc_prio]);
3287 		queue_map |= queue << (tc_prio * KSZ9477_PORT_TC_MAP_S);
3288 	}
3289 
3290 	return ksz_pwrite32(dev, port, KSZ9477_PORT_MRI_TC_MAP__4, queue_map);
3291 }
3292 
3293 static int ksz_tc_ets_del(struct ksz_device *dev, int port)
3294 {
3295 	int ret, queue, tc_prio, s;
3296 	u32 queue_map = 0;
3297 
3298 	/* To restore the default chip configuration, set all queues to use the
3299 	 * WRR scheduler with a weight of 1.
3300 	 */
3301 	for (queue = 0; queue < dev->info->num_tx_queues; queue++) {
3302 		ret = ksz_queue_set_wrr(dev, port, queue,
3303 					KSZ9477_DEFAULT_WRR_WEIGHT);
3304 		if (ret)
3305 			return ret;
3306 	}
3307 
3308 	switch (dev->info->num_tx_queues) {
3309 	case 2:
3310 		s = 2;
3311 		break;
3312 	case 4:
3313 		s = 1;
3314 		break;
3315 	case 8:
3316 		s = 0;
3317 		break;
3318 	default:
3319 		return -EINVAL;
3320 	}
3321 
3322 	/* Revert the queue mapping for TC-priority to its default setting on
3323 	 * the chip.
3324 	 */
3325 	for (tc_prio = 0; tc_prio <= KSZ9477_MAX_TC_PRIO; tc_prio++) {
3326 		int queue;
3327 
3328 		queue = tc_prio >> s;
3329 		queue_map |= queue << (tc_prio * KSZ9477_PORT_TC_MAP_S);
3330 	}
3331 
3332 	return ksz_pwrite32(dev, port, KSZ9477_PORT_MRI_TC_MAP__4, queue_map);
3333 }
3334 
3335 static int ksz_tc_ets_validate(struct ksz_device *dev, int port,
3336 			       struct tc_ets_qopt_offload_replace_params *p)
3337 {
3338 	int band;
3339 
3340 	/* Since it is not feasible to share one port among multiple qdisc,
3341 	 * the user must configure all available queues appropriately.
3342 	 */
3343 	if (p->bands != dev->info->num_tx_queues) {
3344 		dev_err(dev->dev, "Not supported amount of bands. It should be %d\n",
3345 			dev->info->num_tx_queues);
3346 		return -EOPNOTSUPP;
3347 	}
3348 
3349 	for (band = 0; band < p->bands; ++band) {
3350 		/* The KSZ switches utilize a weighted round robin configuration
3351 		 * where a certain number of packets can be transmitted from a
3352 		 * queue before the next queue is serviced. For more information
3353 		 * on this, refer to section 5.2.8.4 of the KSZ8565R
3354 		 * documentation on the Port Transmit Queue Control 1 Register.
3355 		 * However, the current ETS Qdisc implementation (as of February
3356 		 * 2023) assigns a weight to each queue based on the number of
3357 		 * bytes or extrapolated bandwidth in percentages. Since this
3358 		 * differs from the KSZ switches' method and we don't want to
3359 		 * fake support by converting bytes to packets, it is better to
3360 		 * return an error instead.
3361 		 */
3362 		if (p->quanta[band]) {
3363 			dev_err(dev->dev, "Quanta/weights configuration is not supported.\n");
3364 			return -EOPNOTSUPP;
3365 		}
3366 	}
3367 
3368 	return 0;
3369 }
3370 
3371 static int ksz_tc_setup_qdisc_ets(struct dsa_switch *ds, int port,
3372 				  struct tc_ets_qopt_offload *qopt)
3373 {
3374 	struct ksz_device *dev = ds->priv;
3375 	int ret;
3376 
3377 	if (!dev->info->tc_ets_supported)
3378 		return -EOPNOTSUPP;
3379 
3380 	if (qopt->parent != TC_H_ROOT) {
3381 		dev_err(dev->dev, "Parent should be \"root\"\n");
3382 		return -EOPNOTSUPP;
3383 	}
3384 
3385 	switch (qopt->command) {
3386 	case TC_ETS_REPLACE:
3387 		ret = ksz_tc_ets_validate(dev, port, &qopt->replace_params);
3388 		if (ret)
3389 			return ret;
3390 
3391 		return ksz_tc_ets_add(dev, port, &qopt->replace_params);
3392 	case TC_ETS_DESTROY:
3393 		return ksz_tc_ets_del(dev, port);
3394 	case TC_ETS_STATS:
3395 	case TC_ETS_GRAFT:
3396 		return -EOPNOTSUPP;
3397 	}
3398 
3399 	return -EOPNOTSUPP;
3400 }
3401 
3402 static int ksz_setup_tc(struct dsa_switch *ds, int port,
3403 			enum tc_setup_type type, void *type_data)
3404 {
3405 	switch (type) {
3406 	case TC_SETUP_QDISC_CBS:
3407 		return ksz_setup_tc_cbs(ds, port, type_data);
3408 	case TC_SETUP_QDISC_ETS:
3409 		return ksz_tc_setup_qdisc_ets(ds, port, type_data);
3410 	default:
3411 		return -EOPNOTSUPP;
3412 	}
3413 }
3414 
3415 static const struct dsa_switch_ops ksz_switch_ops = {
3416 	.get_tag_protocol	= ksz_get_tag_protocol,
3417 	.connect_tag_protocol   = ksz_connect_tag_protocol,
3418 	.get_phy_flags		= ksz_get_phy_flags,
3419 	.setup			= ksz_setup,
3420 	.teardown		= ksz_teardown,
3421 	.phy_read		= ksz_phy_read16,
3422 	.phy_write		= ksz_phy_write16,
3423 	.phylink_get_caps	= ksz_phylink_get_caps,
3424 	.phylink_mac_config	= ksz_phylink_mac_config,
3425 	.phylink_mac_link_up	= ksz_phylink_mac_link_up,
3426 	.phylink_mac_link_down	= ksz_mac_link_down,
3427 	.port_enable		= ksz_enable_port,
3428 	.set_ageing_time	= ksz_set_ageing_time,
3429 	.get_strings		= ksz_get_strings,
3430 	.get_ethtool_stats	= ksz_get_ethtool_stats,
3431 	.get_sset_count		= ksz_sset_count,
3432 	.port_bridge_join	= ksz_port_bridge_join,
3433 	.port_bridge_leave	= ksz_port_bridge_leave,
3434 	.port_stp_state_set	= ksz_port_stp_state_set,
3435 	.port_pre_bridge_flags	= ksz_port_pre_bridge_flags,
3436 	.port_bridge_flags	= ksz_port_bridge_flags,
3437 	.port_fast_age		= ksz_port_fast_age,
3438 	.port_vlan_filtering	= ksz_port_vlan_filtering,
3439 	.port_vlan_add		= ksz_port_vlan_add,
3440 	.port_vlan_del		= ksz_port_vlan_del,
3441 	.port_fdb_dump		= ksz_port_fdb_dump,
3442 	.port_fdb_add		= ksz_port_fdb_add,
3443 	.port_fdb_del		= ksz_port_fdb_del,
3444 	.port_mdb_add           = ksz_port_mdb_add,
3445 	.port_mdb_del           = ksz_port_mdb_del,
3446 	.port_mirror_add	= ksz_port_mirror_add,
3447 	.port_mirror_del	= ksz_port_mirror_del,
3448 	.get_stats64		= ksz_get_stats64,
3449 	.get_pause_stats	= ksz_get_pause_stats,
3450 	.port_change_mtu	= ksz_change_mtu,
3451 	.port_max_mtu		= ksz_max_mtu,
3452 	.get_ts_info		= ksz_get_ts_info,
3453 	.port_hwtstamp_get	= ksz_hwtstamp_get,
3454 	.port_hwtstamp_set	= ksz_hwtstamp_set,
3455 	.port_txtstamp		= ksz_port_txtstamp,
3456 	.port_rxtstamp		= ksz_port_rxtstamp,
3457 	.port_setup_tc		= ksz_setup_tc,
3458 	.get_mac_eee		= ksz_get_mac_eee,
3459 	.set_mac_eee		= ksz_set_mac_eee,
3460 };
3461 
3462 struct ksz_device *ksz_switch_alloc(struct device *base, void *priv)
3463 {
3464 	struct dsa_switch *ds;
3465 	struct ksz_device *swdev;
3466 
3467 	ds = devm_kzalloc(base, sizeof(*ds), GFP_KERNEL);
3468 	if (!ds)
3469 		return NULL;
3470 
3471 	ds->dev = base;
3472 	ds->num_ports = DSA_MAX_PORTS;
3473 	ds->ops = &ksz_switch_ops;
3474 
3475 	swdev = devm_kzalloc(base, sizeof(*swdev), GFP_KERNEL);
3476 	if (!swdev)
3477 		return NULL;
3478 
3479 	ds->priv = swdev;
3480 	swdev->dev = base;
3481 
3482 	swdev->ds = ds;
3483 	swdev->priv = priv;
3484 
3485 	return swdev;
3486 }
3487 EXPORT_SYMBOL(ksz_switch_alloc);
3488 
3489 static void ksz_parse_rgmii_delay(struct ksz_device *dev, int port_num,
3490 				  struct device_node *port_dn)
3491 {
3492 	phy_interface_t phy_mode = dev->ports[port_num].interface;
3493 	int rx_delay = -1, tx_delay = -1;
3494 
3495 	if (!phy_interface_mode_is_rgmii(phy_mode))
3496 		return;
3497 
3498 	of_property_read_u32(port_dn, "rx-internal-delay-ps", &rx_delay);
3499 	of_property_read_u32(port_dn, "tx-internal-delay-ps", &tx_delay);
3500 
3501 	if (rx_delay == -1 && tx_delay == -1) {
3502 		dev_warn(dev->dev,
3503 			 "Port %d interpreting RGMII delay settings based on \"phy-mode\" property, "
3504 			 "please update device tree to specify \"rx-internal-delay-ps\" and "
3505 			 "\"tx-internal-delay-ps\"",
3506 			 port_num);
3507 
3508 		if (phy_mode == PHY_INTERFACE_MODE_RGMII_RXID ||
3509 		    phy_mode == PHY_INTERFACE_MODE_RGMII_ID)
3510 			rx_delay = 2000;
3511 
3512 		if (phy_mode == PHY_INTERFACE_MODE_RGMII_TXID ||
3513 		    phy_mode == PHY_INTERFACE_MODE_RGMII_ID)
3514 			tx_delay = 2000;
3515 	}
3516 
3517 	if (rx_delay < 0)
3518 		rx_delay = 0;
3519 	if (tx_delay < 0)
3520 		tx_delay = 0;
3521 
3522 	dev->ports[port_num].rgmii_rx_val = rx_delay;
3523 	dev->ports[port_num].rgmii_tx_val = tx_delay;
3524 }
3525 
3526 int ksz_switch_register(struct ksz_device *dev)
3527 {
3528 	const struct ksz_chip_data *info;
3529 	struct device_node *port, *ports;
3530 	phy_interface_t interface;
3531 	unsigned int port_num;
3532 	int ret;
3533 	int i;
3534 
3535 	if (dev->pdata)
3536 		dev->chip_id = dev->pdata->chip_id;
3537 
3538 	dev->reset_gpio = devm_gpiod_get_optional(dev->dev, "reset",
3539 						  GPIOD_OUT_LOW);
3540 	if (IS_ERR(dev->reset_gpio))
3541 		return PTR_ERR(dev->reset_gpio);
3542 
3543 	if (dev->reset_gpio) {
3544 		gpiod_set_value_cansleep(dev->reset_gpio, 1);
3545 		usleep_range(10000, 12000);
3546 		gpiod_set_value_cansleep(dev->reset_gpio, 0);
3547 		msleep(100);
3548 	}
3549 
3550 	mutex_init(&dev->dev_mutex);
3551 	mutex_init(&dev->regmap_mutex);
3552 	mutex_init(&dev->alu_mutex);
3553 	mutex_init(&dev->vlan_mutex);
3554 
3555 	ret = ksz_switch_detect(dev);
3556 	if (ret)
3557 		return ret;
3558 
3559 	info = ksz_lookup_info(dev->chip_id);
3560 	if (!info)
3561 		return -ENODEV;
3562 
3563 	/* Update the compatible info with the probed one */
3564 	dev->info = info;
3565 
3566 	dev_info(dev->dev, "found switch: %s, rev %i\n",
3567 		 dev->info->dev_name, dev->chip_rev);
3568 
3569 	ret = ksz_check_device_id(dev);
3570 	if (ret)
3571 		return ret;
3572 
3573 	dev->dev_ops = dev->info->ops;
3574 
3575 	ret = dev->dev_ops->init(dev);
3576 	if (ret)
3577 		return ret;
3578 
3579 	dev->ports = devm_kzalloc(dev->dev,
3580 				  dev->info->port_cnt * sizeof(struct ksz_port),
3581 				  GFP_KERNEL);
3582 	if (!dev->ports)
3583 		return -ENOMEM;
3584 
3585 	for (i = 0; i < dev->info->port_cnt; i++) {
3586 		spin_lock_init(&dev->ports[i].mib.stats64_lock);
3587 		mutex_init(&dev->ports[i].mib.cnt_mutex);
3588 		dev->ports[i].mib.counters =
3589 			devm_kzalloc(dev->dev,
3590 				     sizeof(u64) * (dev->info->mib_cnt + 1),
3591 				     GFP_KERNEL);
3592 		if (!dev->ports[i].mib.counters)
3593 			return -ENOMEM;
3594 
3595 		dev->ports[i].ksz_dev = dev;
3596 		dev->ports[i].num = i;
3597 	}
3598 
3599 	/* set the real number of ports */
3600 	dev->ds->num_ports = dev->info->port_cnt;
3601 
3602 	/* Host port interface will be self detected, or specifically set in
3603 	 * device tree.
3604 	 */
3605 	for (port_num = 0; port_num < dev->info->port_cnt; ++port_num)
3606 		dev->ports[port_num].interface = PHY_INTERFACE_MODE_NA;
3607 	if (dev->dev->of_node) {
3608 		ret = of_get_phy_mode(dev->dev->of_node, &interface);
3609 		if (ret == 0)
3610 			dev->compat_interface = interface;
3611 		ports = of_get_child_by_name(dev->dev->of_node, "ethernet-ports");
3612 		if (!ports)
3613 			ports = of_get_child_by_name(dev->dev->of_node, "ports");
3614 		if (ports) {
3615 			for_each_available_child_of_node(ports, port) {
3616 				if (of_property_read_u32(port, "reg",
3617 							 &port_num))
3618 					continue;
3619 				if (!(dev->port_mask & BIT(port_num))) {
3620 					of_node_put(port);
3621 					of_node_put(ports);
3622 					return -EINVAL;
3623 				}
3624 				of_get_phy_mode(port,
3625 						&dev->ports[port_num].interface);
3626 
3627 				ksz_parse_rgmii_delay(dev, port_num, port);
3628 			}
3629 			of_node_put(ports);
3630 		}
3631 		dev->synclko_125 = of_property_read_bool(dev->dev->of_node,
3632 							 "microchip,synclko-125");
3633 		dev->synclko_disable = of_property_read_bool(dev->dev->of_node,
3634 							     "microchip,synclko-disable");
3635 		if (dev->synclko_125 && dev->synclko_disable) {
3636 			dev_err(dev->dev, "inconsistent synclko settings\n");
3637 			return -EINVAL;
3638 		}
3639 	}
3640 
3641 	ret = dsa_register_switch(dev->ds);
3642 	if (ret) {
3643 		dev->dev_ops->exit(dev);
3644 		return ret;
3645 	}
3646 
3647 	/* Read MIB counters every 30 seconds to avoid overflow. */
3648 	dev->mib_read_interval = msecs_to_jiffies(5000);
3649 
3650 	/* Start the MIB timer. */
3651 	schedule_delayed_work(&dev->mib_read, 0);
3652 
3653 	return ret;
3654 }
3655 EXPORT_SYMBOL(ksz_switch_register);
3656 
3657 void ksz_switch_remove(struct ksz_device *dev)
3658 {
3659 	/* timer started */
3660 	if (dev->mib_read_interval) {
3661 		dev->mib_read_interval = 0;
3662 		cancel_delayed_work_sync(&dev->mib_read);
3663 	}
3664 
3665 	dev->dev_ops->exit(dev);
3666 	dsa_unregister_switch(dev->ds);
3667 
3668 	if (dev->reset_gpio)
3669 		gpiod_set_value_cansleep(dev->reset_gpio, 1);
3670 
3671 }
3672 EXPORT_SYMBOL(ksz_switch_remove);
3673 
3674 MODULE_AUTHOR("Woojung Huh <Woojung.Huh@microchip.com>");
3675 MODULE_DESCRIPTION("Microchip KSZ Series Switch DSA Driver");
3676 MODULE_LICENSE("GPL");
3677