1 // SPDX-License-Identifier: GPL-2.0
3 * Microchip KSZ9477 switch driver main logic
5 * Copyright (C) 2017-2019 Microchip Technology Inc.
8 #include <linux/kernel.h>
9 #include <linux/module.h>
10 #include <linux/iopoll.h>
11 #include <linux/platform_data/microchip-ksz.h>
12 #include <linux/phy.h>
13 #include <linux/if_bridge.h>
15 #include <net/switchdev.h>
17 #include "ksz9477_reg.h"
18 #include "ksz_common.h"
20 /* Used with variable features to indicate capabilities. */
21 #define GBIT_SUPPORT BIT(0)
22 #define NEW_XMII BIT(1)
23 #define IS_9893 BIT(2)
27 char string[ETH_GSTRING_LEN];
28 } ksz9477_mib_names[TOTAL_SWITCH_COUNTER_NUM] = {
30 { 0x01, "rx_undersize" },
31 { 0x02, "rx_fragments" },
32 { 0x03, "rx_oversize" },
33 { 0x04, "rx_jabbers" },
34 { 0x05, "rx_symbol_err" },
35 { 0x06, "rx_crc_err" },
36 { 0x07, "rx_align_err" },
37 { 0x08, "rx_mac_ctrl" },
42 { 0x0D, "rx_64_or_less" },
43 { 0x0E, "rx_65_127" },
44 { 0x0F, "rx_128_255" },
45 { 0x10, "rx_256_511" },
46 { 0x11, "rx_512_1023" },
47 { 0x12, "rx_1024_1522" },
48 { 0x13, "rx_1523_2000" },
51 { 0x16, "tx_late_col" },
56 { 0x1B, "tx_deferred" },
57 { 0x1C, "tx_total_col" },
58 { 0x1D, "tx_exc_col" },
59 { 0x1E, "tx_single_col" },
60 { 0x1F, "tx_mult_col" },
63 { 0x82, "rx_discards" },
64 { 0x83, "tx_discards" },
67 static void ksz_cfg(struct ksz_device *dev, u32 addr, u8 bits, bool set)
69 regmap_update_bits(dev->regmap[0], addr, bits, set ? bits : 0);
72 static void ksz_port_cfg(struct ksz_device *dev, int port, int offset, u8 bits,
75 regmap_update_bits(dev->regmap[0], PORT_CTRL_ADDR(port, offset),
76 bits, set ? bits : 0);
79 static void ksz9477_cfg32(struct ksz_device *dev, u32 addr, u32 bits, bool set)
81 regmap_update_bits(dev->regmap[2], addr, bits, set ? bits : 0);
84 static void ksz9477_port_cfg32(struct ksz_device *dev, int port, int offset,
87 regmap_update_bits(dev->regmap[2], PORT_CTRL_ADDR(port, offset),
88 bits, set ? bits : 0);
91 static int ksz9477_wait_vlan_ctrl_ready(struct ksz_device *dev)
95 return regmap_read_poll_timeout(dev->regmap[0], REG_SW_VLAN_CTRL,
96 val, !(val & VLAN_START), 10, 1000);
99 static int ksz9477_get_vlan_table(struct ksz_device *dev, u16 vid,
104 mutex_lock(&dev->vlan_mutex);
106 ksz_write16(dev, REG_SW_VLAN_ENTRY_INDEX__2, vid & VLAN_INDEX_M);
107 ksz_write8(dev, REG_SW_VLAN_CTRL, VLAN_READ | VLAN_START);
109 /* wait to be cleared */
110 ret = ksz9477_wait_vlan_ctrl_ready(dev);
112 dev_dbg(dev->dev, "Failed to read vlan table\n");
116 ksz_read32(dev, REG_SW_VLAN_ENTRY__4, &vlan_table[0]);
117 ksz_read32(dev, REG_SW_VLAN_ENTRY_UNTAG__4, &vlan_table[1]);
118 ksz_read32(dev, REG_SW_VLAN_ENTRY_PORTS__4, &vlan_table[2]);
120 ksz_write8(dev, REG_SW_VLAN_CTRL, 0);
123 mutex_unlock(&dev->vlan_mutex);
128 static int ksz9477_set_vlan_table(struct ksz_device *dev, u16 vid,
133 mutex_lock(&dev->vlan_mutex);
135 ksz_write32(dev, REG_SW_VLAN_ENTRY__4, vlan_table[0]);
136 ksz_write32(dev, REG_SW_VLAN_ENTRY_UNTAG__4, vlan_table[1]);
137 ksz_write32(dev, REG_SW_VLAN_ENTRY_PORTS__4, vlan_table[2]);
139 ksz_write16(dev, REG_SW_VLAN_ENTRY_INDEX__2, vid & VLAN_INDEX_M);
140 ksz_write8(dev, REG_SW_VLAN_CTRL, VLAN_START | VLAN_WRITE);
142 /* wait to be cleared */
143 ret = ksz9477_wait_vlan_ctrl_ready(dev);
145 dev_dbg(dev->dev, "Failed to write vlan table\n");
149 ksz_write8(dev, REG_SW_VLAN_CTRL, 0);
151 /* update vlan cache table */
152 dev->vlan_cache[vid].table[0] = vlan_table[0];
153 dev->vlan_cache[vid].table[1] = vlan_table[1];
154 dev->vlan_cache[vid].table[2] = vlan_table[2];
157 mutex_unlock(&dev->vlan_mutex);
162 static void ksz9477_read_table(struct ksz_device *dev, u32 *table)
164 ksz_read32(dev, REG_SW_ALU_VAL_A, &table[0]);
165 ksz_read32(dev, REG_SW_ALU_VAL_B, &table[1]);
166 ksz_read32(dev, REG_SW_ALU_VAL_C, &table[2]);
167 ksz_read32(dev, REG_SW_ALU_VAL_D, &table[3]);
170 static void ksz9477_write_table(struct ksz_device *dev, u32 *table)
172 ksz_write32(dev, REG_SW_ALU_VAL_A, table[0]);
173 ksz_write32(dev, REG_SW_ALU_VAL_B, table[1]);
174 ksz_write32(dev, REG_SW_ALU_VAL_C, table[2]);
175 ksz_write32(dev, REG_SW_ALU_VAL_D, table[3]);
178 static int ksz9477_wait_alu_ready(struct ksz_device *dev)
182 return regmap_read_poll_timeout(dev->regmap[2], REG_SW_ALU_CTRL__4,
183 val, !(val & ALU_START), 10, 1000);
186 static int ksz9477_wait_alu_sta_ready(struct ksz_device *dev)
190 return regmap_read_poll_timeout(dev->regmap[2],
191 REG_SW_ALU_STAT_CTRL__4,
192 val, !(val & ALU_STAT_START),
196 static int ksz9477_reset_switch(struct ksz_device *dev)
202 ksz_cfg(dev, REG_SW_OPERATION, SW_RESET, true);
204 /* turn off SPI DO Edge select */
205 regmap_update_bits(dev->regmap[0], REG_SW_GLOBAL_SERIAL_CTRL_0,
206 SPI_AUTO_EDGE_DETECTION, 0);
208 /* default configuration */
209 ksz_read8(dev, REG_SW_LUE_CTRL_1, &data8);
210 data8 = SW_AGING_ENABLE | SW_LINK_AUTO_AGING |
211 SW_SRC_ADDR_FILTER | SW_FLUSH_STP_TABLE | SW_FLUSH_MSTP_TABLE;
212 ksz_write8(dev, REG_SW_LUE_CTRL_1, data8);
214 /* disable interrupts */
215 ksz_write32(dev, REG_SW_INT_MASK__4, SWITCH_INT_MASK);
216 ksz_write32(dev, REG_SW_PORT_INT_MASK__4, 0x7F);
217 ksz_read32(dev, REG_SW_PORT_INT_STATUS__4, &data32);
219 /* set broadcast storm protection 10% rate */
220 regmap_update_bits(dev->regmap[1], REG_SW_MAC_CTRL_2,
221 BROADCAST_STORM_RATE,
222 (BROADCAST_STORM_VALUE *
223 BROADCAST_STORM_PROT_RATE) / 100);
225 if (dev->synclko_125)
226 ksz_write8(dev, REG_SW_GLOBAL_OUTPUT_CTRL__1,
227 SW_ENABLE_REFCLKO | SW_REFCLKO_IS_125MHZ);
232 static void ksz9477_r_mib_cnt(struct ksz_device *dev, int port, u16 addr,
235 struct ksz_port *p = &dev->ports[port];
240 /* retain the flush/freeze bit */
241 data = p->freeze ? MIB_COUNTER_FLUSH_FREEZE : 0;
242 data |= MIB_COUNTER_READ;
243 data |= (addr << MIB_COUNTER_INDEX_S);
244 ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, data);
246 ret = regmap_read_poll_timeout(dev->regmap[2],
247 PORT_CTRL_ADDR(port, REG_PORT_MIB_CTRL_STAT__4),
248 val, !(val & MIB_COUNTER_READ), 10, 1000);
249 /* failed to read MIB. get out of loop */
251 dev_dbg(dev->dev, "Failed to get MIB\n");
255 /* count resets upon read */
256 ksz_pread32(dev, port, REG_PORT_MIB_DATA, &data);
260 static void ksz9477_r_mib_pkt(struct ksz_device *dev, int port, u16 addr,
261 u64 *dropped, u64 *cnt)
263 addr = ksz9477_mib_names[addr].index;
264 ksz9477_r_mib_cnt(dev, port, addr, cnt);
267 static void ksz9477_freeze_mib(struct ksz_device *dev, int port, bool freeze)
269 u32 val = freeze ? MIB_COUNTER_FLUSH_FREEZE : 0;
270 struct ksz_port *p = &dev->ports[port];
272 /* enable/disable the port for flush/freeze function */
273 mutex_lock(&p->mib.cnt_mutex);
274 ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, val);
276 /* used by MIB counter reading code to know freeze is enabled */
278 mutex_unlock(&p->mib.cnt_mutex);
281 static void ksz9477_port_init_cnt(struct ksz_device *dev, int port)
283 struct ksz_port_mib *mib = &dev->ports[port].mib;
285 /* flush all enabled port MIB counters */
286 mutex_lock(&mib->cnt_mutex);
287 ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4,
288 MIB_COUNTER_FLUSH_FREEZE);
289 ksz_write8(dev, REG_SW_MAC_CTRL_6, SW_MIB_COUNTER_FLUSH);
290 ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, 0);
291 mutex_unlock(&mib->cnt_mutex);
294 memset(mib->counters, 0, dev->mib_cnt * sizeof(u64));
297 static enum dsa_tag_protocol ksz9477_get_tag_protocol(struct dsa_switch *ds,
299 enum dsa_tag_protocol mp)
301 enum dsa_tag_protocol proto = DSA_TAG_PROTO_KSZ9477;
302 struct ksz_device *dev = ds->priv;
304 if (dev->features & IS_9893)
305 proto = DSA_TAG_PROTO_KSZ9893;
309 static int ksz9477_phy_read16(struct dsa_switch *ds, int addr, int reg)
311 struct ksz_device *dev = ds->priv;
314 /* No real PHY after this. Simulate the PHY.
315 * A fixed PHY can be setup in the device tree, but this function is
316 * still called for that port during initialization.
317 * For RGMII PHY there is no way to access it so the fixed PHY should
318 * be used. For SGMII PHY the supporting code will be added later.
320 if (addr >= dev->phy_port_cnt) {
321 struct ksz_port *p = &dev->ports[addr];
346 if (p->phydev.speed == SPEED_1000)
353 ksz_pread16(dev, addr, 0x100 + (reg << 1), &val);
359 static int ksz9477_phy_write16(struct dsa_switch *ds, int addr, int reg,
362 struct ksz_device *dev = ds->priv;
364 /* No real PHY after this. */
365 if (addr >= dev->phy_port_cnt)
368 /* No gigabit support. Do not write to this register. */
369 if (!(dev->features & GBIT_SUPPORT) && reg == MII_CTRL1000)
371 ksz_pwrite16(dev, addr, 0x100 + (reg << 1), val);
376 static void ksz9477_get_strings(struct dsa_switch *ds, int port,
377 u32 stringset, uint8_t *buf)
381 if (stringset != ETH_SS_STATS)
384 for (i = 0; i < TOTAL_SWITCH_COUNTER_NUM; i++) {
385 memcpy(buf + i * ETH_GSTRING_LEN, ksz9477_mib_names[i].string,
390 static void ksz9477_cfg_port_member(struct ksz_device *dev, int port,
393 ksz_pwrite32(dev, port, REG_PORT_VLAN_MEMBERSHIP__4, member);
394 dev->ports[port].member = member;
397 static void ksz9477_port_stp_state_set(struct dsa_switch *ds, int port,
400 struct ksz_device *dev = ds->priv;
401 struct ksz_port *p = &dev->ports[port];
404 int forward = dev->member;
406 ksz_pread8(dev, port, P_STP_CTRL, &data);
407 data &= ~(PORT_TX_ENABLE | PORT_RX_ENABLE | PORT_LEARN_DISABLE);
410 case BR_STATE_DISABLED:
411 data |= PORT_LEARN_DISABLE;
412 if (port != dev->cpu_port)
415 case BR_STATE_LISTENING:
416 data |= (PORT_RX_ENABLE | PORT_LEARN_DISABLE);
417 if (port != dev->cpu_port &&
418 p->stp_state == BR_STATE_DISABLED)
419 member = dev->host_mask | p->vid_member;
421 case BR_STATE_LEARNING:
422 data |= PORT_RX_ENABLE;
424 case BR_STATE_FORWARDING:
425 data |= (PORT_TX_ENABLE | PORT_RX_ENABLE);
427 /* This function is also used internally. */
428 if (port == dev->cpu_port)
431 member = dev->host_mask | p->vid_member;
432 mutex_lock(&dev->dev_mutex);
434 /* Port is a member of a bridge. */
435 if (dev->br_member & (1 << port)) {
436 dev->member |= (1 << port);
437 member = dev->member;
439 mutex_unlock(&dev->dev_mutex);
441 case BR_STATE_BLOCKING:
442 data |= PORT_LEARN_DISABLE;
443 if (port != dev->cpu_port &&
444 p->stp_state == BR_STATE_DISABLED)
445 member = dev->host_mask | p->vid_member;
448 dev_err(ds->dev, "invalid STP state: %d\n", state);
452 ksz_pwrite8(dev, port, P_STP_CTRL, data);
453 p->stp_state = state;
454 mutex_lock(&dev->dev_mutex);
455 /* Port membership may share register with STP state. */
456 if (member >= 0 && member != p->member)
457 ksz9477_cfg_port_member(dev, port, (u8)member);
459 /* Check if forwarding needs to be updated. */
460 if (state != BR_STATE_FORWARDING) {
461 if (dev->br_member & (1 << port))
462 dev->member &= ~(1 << port);
465 /* When topology has changed the function ksz_update_port_member
466 * should be called to modify port forwarding behavior.
468 if (forward != dev->member)
469 ksz_update_port_member(dev, port);
470 mutex_unlock(&dev->dev_mutex);
473 static void ksz9477_flush_dyn_mac_table(struct ksz_device *dev, int port)
477 regmap_update_bits(dev->regmap[0], REG_SW_LUE_CTRL_2,
478 SW_FLUSH_OPTION_M << SW_FLUSH_OPTION_S,
479 SW_FLUSH_OPTION_DYN_MAC << SW_FLUSH_OPTION_S);
481 if (port < dev->mib_port_cnt) {
482 /* flush individual port */
483 ksz_pread8(dev, port, P_STP_CTRL, &data);
484 if (!(data & PORT_LEARN_DISABLE))
485 ksz_pwrite8(dev, port, P_STP_CTRL,
486 data | PORT_LEARN_DISABLE);
487 ksz_cfg(dev, S_FLUSH_TABLE_CTRL, SW_FLUSH_DYN_MAC_TABLE, true);
488 ksz_pwrite8(dev, port, P_STP_CTRL, data);
491 ksz_cfg(dev, S_FLUSH_TABLE_CTRL, SW_FLUSH_STP_TABLE, true);
495 static int ksz9477_port_vlan_filtering(struct dsa_switch *ds, int port,
497 struct switchdev_trans *trans)
499 struct ksz_device *dev = ds->priv;
501 if (switchdev_trans_ph_prepare(trans))
505 ksz_port_cfg(dev, port, REG_PORT_LUE_CTRL,
506 PORT_VLAN_LOOKUP_VID_0, true);
507 ksz_cfg(dev, REG_SW_LUE_CTRL_0, SW_VLAN_ENABLE, true);
509 ksz_cfg(dev, REG_SW_LUE_CTRL_0, SW_VLAN_ENABLE, false);
510 ksz_port_cfg(dev, port, REG_PORT_LUE_CTRL,
511 PORT_VLAN_LOOKUP_VID_0, false);
517 static void ksz9477_port_vlan_add(struct dsa_switch *ds, int port,
518 const struct switchdev_obj_port_vlan *vlan)
520 struct ksz_device *dev = ds->priv;
523 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
525 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
526 if (ksz9477_get_vlan_table(dev, vid, vlan_table)) {
527 dev_dbg(dev->dev, "Failed to get vlan table\n");
531 vlan_table[0] = VLAN_VALID | (vid & VLAN_FID_M);
533 vlan_table[1] |= BIT(port);
535 vlan_table[1] &= ~BIT(port);
536 vlan_table[1] &= ~(BIT(dev->cpu_port));
538 vlan_table[2] |= BIT(port) | BIT(dev->cpu_port);
540 if (ksz9477_set_vlan_table(dev, vid, vlan_table)) {
541 dev_dbg(dev->dev, "Failed to set vlan table\n");
546 if (vlan->flags & BRIDGE_VLAN_INFO_PVID)
547 ksz_pwrite16(dev, port, REG_PORT_DEFAULT_VID, vid);
551 static int ksz9477_port_vlan_del(struct dsa_switch *ds, int port,
552 const struct switchdev_obj_port_vlan *vlan)
554 struct ksz_device *dev = ds->priv;
555 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
560 ksz_pread16(dev, port, REG_PORT_DEFAULT_VID, &pvid);
563 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
564 if (ksz9477_get_vlan_table(dev, vid, vlan_table)) {
565 dev_dbg(dev->dev, "Failed to get vlan table\n");
569 vlan_table[2] &= ~BIT(port);
575 vlan_table[1] &= ~BIT(port);
577 if (ksz9477_set_vlan_table(dev, vid, vlan_table)) {
578 dev_dbg(dev->dev, "Failed to set vlan table\n");
583 ksz_pwrite16(dev, port, REG_PORT_DEFAULT_VID, pvid);
588 static int ksz9477_port_fdb_add(struct dsa_switch *ds, int port,
589 const unsigned char *addr, u16 vid)
591 struct ksz_device *dev = ds->priv;
596 mutex_lock(&dev->alu_mutex);
598 /* find any entry with mac & vid */
599 data = vid << ALU_FID_INDEX_S;
600 data |= ((addr[0] << 8) | addr[1]);
601 ksz_write32(dev, REG_SW_ALU_INDEX_0, data);
603 data = ((addr[2] << 24) | (addr[3] << 16));
604 data |= ((addr[4] << 8) | addr[5]);
605 ksz_write32(dev, REG_SW_ALU_INDEX_1, data);
607 /* start read operation */
608 ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_READ | ALU_START);
610 /* wait to be finished */
611 ret = ksz9477_wait_alu_ready(dev);
613 dev_dbg(dev->dev, "Failed to read ALU\n");
618 ksz9477_read_table(dev, alu_table);
620 /* update ALU entry */
621 alu_table[0] = ALU_V_STATIC_VALID;
622 alu_table[1] |= BIT(port);
624 alu_table[1] |= ALU_V_USE_FID;
625 alu_table[2] = (vid << ALU_V_FID_S);
626 alu_table[2] |= ((addr[0] << 8) | addr[1]);
627 alu_table[3] = ((addr[2] << 24) | (addr[3] << 16));
628 alu_table[3] |= ((addr[4] << 8) | addr[5]);
630 ksz9477_write_table(dev, alu_table);
632 ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_WRITE | ALU_START);
634 /* wait to be finished */
635 ret = ksz9477_wait_alu_ready(dev);
637 dev_dbg(dev->dev, "Failed to write ALU\n");
640 mutex_unlock(&dev->alu_mutex);
645 static int ksz9477_port_fdb_del(struct dsa_switch *ds, int port,
646 const unsigned char *addr, u16 vid)
648 struct ksz_device *dev = ds->priv;
653 mutex_lock(&dev->alu_mutex);
655 /* read any entry with mac & vid */
656 data = vid << ALU_FID_INDEX_S;
657 data |= ((addr[0] << 8) | addr[1]);
658 ksz_write32(dev, REG_SW_ALU_INDEX_0, data);
660 data = ((addr[2] << 24) | (addr[3] << 16));
661 data |= ((addr[4] << 8) | addr[5]);
662 ksz_write32(dev, REG_SW_ALU_INDEX_1, data);
664 /* start read operation */
665 ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_READ | ALU_START);
667 /* wait to be finished */
668 ret = ksz9477_wait_alu_ready(dev);
670 dev_dbg(dev->dev, "Failed to read ALU\n");
674 ksz_read32(dev, REG_SW_ALU_VAL_A, &alu_table[0]);
675 if (alu_table[0] & ALU_V_STATIC_VALID) {
676 ksz_read32(dev, REG_SW_ALU_VAL_B, &alu_table[1]);
677 ksz_read32(dev, REG_SW_ALU_VAL_C, &alu_table[2]);
678 ksz_read32(dev, REG_SW_ALU_VAL_D, &alu_table[3]);
680 /* clear forwarding port */
681 alu_table[2] &= ~BIT(port);
683 /* if there is no port to forward, clear table */
684 if ((alu_table[2] & ALU_V_PORT_MAP) == 0) {
697 ksz9477_write_table(dev, alu_table);
699 ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_WRITE | ALU_START);
701 /* wait to be finished */
702 ret = ksz9477_wait_alu_ready(dev);
704 dev_dbg(dev->dev, "Failed to write ALU\n");
707 mutex_unlock(&dev->alu_mutex);
712 static void ksz9477_convert_alu(struct alu_struct *alu, u32 *alu_table)
714 alu->is_static = !!(alu_table[0] & ALU_V_STATIC_VALID);
715 alu->is_src_filter = !!(alu_table[0] & ALU_V_SRC_FILTER);
716 alu->is_dst_filter = !!(alu_table[0] & ALU_V_DST_FILTER);
717 alu->prio_age = (alu_table[0] >> ALU_V_PRIO_AGE_CNT_S) &
718 ALU_V_PRIO_AGE_CNT_M;
719 alu->mstp = alu_table[0] & ALU_V_MSTP_M;
721 alu->is_override = !!(alu_table[1] & ALU_V_OVERRIDE);
722 alu->is_use_fid = !!(alu_table[1] & ALU_V_USE_FID);
723 alu->port_forward = alu_table[1] & ALU_V_PORT_MAP;
725 alu->fid = (alu_table[2] >> ALU_V_FID_S) & ALU_V_FID_M;
727 alu->mac[0] = (alu_table[2] >> 8) & 0xFF;
728 alu->mac[1] = alu_table[2] & 0xFF;
729 alu->mac[2] = (alu_table[3] >> 24) & 0xFF;
730 alu->mac[3] = (alu_table[3] >> 16) & 0xFF;
731 alu->mac[4] = (alu_table[3] >> 8) & 0xFF;
732 alu->mac[5] = alu_table[3] & 0xFF;
735 static int ksz9477_port_fdb_dump(struct dsa_switch *ds, int port,
736 dsa_fdb_dump_cb_t *cb, void *data)
738 struct ksz_device *dev = ds->priv;
742 struct alu_struct alu;
745 mutex_lock(&dev->alu_mutex);
747 /* start ALU search */
748 ksz_write32(dev, REG_SW_ALU_CTRL__4, ALU_START | ALU_SEARCH);
753 ksz_read32(dev, REG_SW_ALU_CTRL__4, &ksz_data);
754 if ((ksz_data & ALU_VALID) || !(ksz_data & ALU_START))
757 } while (timeout-- > 0);
760 dev_dbg(dev->dev, "Failed to search ALU\n");
765 if (!(ksz_data & ALU_VALID))
769 ksz9477_read_table(dev, alu_table);
771 ksz9477_convert_alu(&alu, alu_table);
773 if (alu.port_forward & BIT(port)) {
774 ret = cb(alu.mac, alu.fid, alu.is_static, data);
778 } while (ksz_data & ALU_START);
782 /* stop ALU search */
783 ksz_write32(dev, REG_SW_ALU_CTRL__4, 0);
785 mutex_unlock(&dev->alu_mutex);
790 static void ksz9477_port_mdb_add(struct dsa_switch *ds, int port,
791 const struct switchdev_obj_port_mdb *mdb)
793 struct ksz_device *dev = ds->priv;
799 mac_hi = ((mdb->addr[0] << 8) | mdb->addr[1]);
800 mac_lo = ((mdb->addr[2] << 24) | (mdb->addr[3] << 16));
801 mac_lo |= ((mdb->addr[4] << 8) | mdb->addr[5]);
803 mutex_lock(&dev->alu_mutex);
805 for (index = 0; index < dev->num_statics; index++) {
806 /* find empty slot first */
807 data = (index << ALU_STAT_INDEX_S) |
808 ALU_STAT_READ | ALU_STAT_START;
809 ksz_write32(dev, REG_SW_ALU_STAT_CTRL__4, data);
811 /* wait to be finished */
812 if (ksz9477_wait_alu_sta_ready(dev)) {
813 dev_dbg(dev->dev, "Failed to read ALU STATIC\n");
817 /* read ALU static table */
818 ksz9477_read_table(dev, static_table);
820 if (static_table[0] & ALU_V_STATIC_VALID) {
821 /* check this has same vid & mac address */
822 if (((static_table[2] >> ALU_V_FID_S) == mdb->vid) &&
823 ((static_table[2] & ALU_V_MAC_ADDR_HI) == mac_hi) &&
824 static_table[3] == mac_lo) {
825 /* found matching one */
829 /* found empty one */
834 /* no available entry */
835 if (index == dev->num_statics)
839 static_table[0] = ALU_V_STATIC_VALID;
840 static_table[1] |= BIT(port);
842 static_table[1] |= ALU_V_USE_FID;
843 static_table[2] = (mdb->vid << ALU_V_FID_S);
844 static_table[2] |= mac_hi;
845 static_table[3] = mac_lo;
847 ksz9477_write_table(dev, static_table);
849 data = (index << ALU_STAT_INDEX_S) | ALU_STAT_START;
850 ksz_write32(dev, REG_SW_ALU_STAT_CTRL__4, data);
852 /* wait to be finished */
853 if (ksz9477_wait_alu_sta_ready(dev))
854 dev_dbg(dev->dev, "Failed to read ALU STATIC\n");
857 mutex_unlock(&dev->alu_mutex);
860 static int ksz9477_port_mdb_del(struct dsa_switch *ds, int port,
861 const struct switchdev_obj_port_mdb *mdb)
863 struct ksz_device *dev = ds->priv;
870 mac_hi = ((mdb->addr[0] << 8) | mdb->addr[1]);
871 mac_lo = ((mdb->addr[2] << 24) | (mdb->addr[3] << 16));
872 mac_lo |= ((mdb->addr[4] << 8) | mdb->addr[5]);
874 mutex_lock(&dev->alu_mutex);
876 for (index = 0; index < dev->num_statics; index++) {
877 /* find empty slot first */
878 data = (index << ALU_STAT_INDEX_S) |
879 ALU_STAT_READ | ALU_STAT_START;
880 ksz_write32(dev, REG_SW_ALU_STAT_CTRL__4, data);
882 /* wait to be finished */
883 ret = ksz9477_wait_alu_sta_ready(dev);
885 dev_dbg(dev->dev, "Failed to read ALU STATIC\n");
889 /* read ALU static table */
890 ksz9477_read_table(dev, static_table);
892 if (static_table[0] & ALU_V_STATIC_VALID) {
893 /* check this has same vid & mac address */
895 if (((static_table[2] >> ALU_V_FID_S) == mdb->vid) &&
896 ((static_table[2] & ALU_V_MAC_ADDR_HI) == mac_hi) &&
897 static_table[3] == mac_lo) {
898 /* found matching one */
904 /* no available entry */
905 if (index == dev->num_statics)
909 static_table[1] &= ~BIT(port);
911 if ((static_table[1] & ALU_V_PORT_MAP) == 0) {
919 ksz9477_write_table(dev, static_table);
921 data = (index << ALU_STAT_INDEX_S) | ALU_STAT_START;
922 ksz_write32(dev, REG_SW_ALU_STAT_CTRL__4, data);
924 /* wait to be finished */
925 ret = ksz9477_wait_alu_sta_ready(dev);
927 dev_dbg(dev->dev, "Failed to read ALU STATIC\n");
930 mutex_unlock(&dev->alu_mutex);
935 static int ksz9477_port_mirror_add(struct dsa_switch *ds, int port,
936 struct dsa_mall_mirror_tc_entry *mirror,
939 struct ksz_device *dev = ds->priv;
942 ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_RX, true);
944 ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_TX, true);
946 ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_SNIFFER, false);
948 /* configure mirror port */
949 ksz_port_cfg(dev, mirror->to_local_port, P_MIRROR_CTRL,
950 PORT_MIRROR_SNIFFER, true);
952 ksz_cfg(dev, S_MIRROR_CTRL, SW_MIRROR_RX_TX, false);
957 static void ksz9477_port_mirror_del(struct dsa_switch *ds, int port,
958 struct dsa_mall_mirror_tc_entry *mirror)
960 struct ksz_device *dev = ds->priv;
964 ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_RX, false);
966 ksz_port_cfg(dev, port, P_MIRROR_CTRL, PORT_MIRROR_TX, false);
968 ksz_pread8(dev, port, P_MIRROR_CTRL, &data);
970 if (!(data & (PORT_MIRROR_RX | PORT_MIRROR_TX)))
971 ksz_port_cfg(dev, mirror->to_local_port, P_MIRROR_CTRL,
972 PORT_MIRROR_SNIFFER, false);
975 static bool ksz9477_get_gbit(struct ksz_device *dev, u8 data)
979 if (dev->features & NEW_XMII)
980 gbit = !(data & PORT_MII_NOT_1GBIT);
982 gbit = !!(data & PORT_MII_1000MBIT_S1);
986 static void ksz9477_set_gbit(struct ksz_device *dev, bool gbit, u8 *data)
988 if (dev->features & NEW_XMII) {
990 *data &= ~PORT_MII_NOT_1GBIT;
992 *data |= PORT_MII_NOT_1GBIT;
995 *data |= PORT_MII_1000MBIT_S1;
997 *data &= ~PORT_MII_1000MBIT_S1;
1001 static int ksz9477_get_xmii(struct ksz_device *dev, u8 data)
1005 if (dev->features & NEW_XMII) {
1006 switch (data & PORT_MII_SEL_M) {
1020 switch (data & PORT_MII_SEL_M) {
1021 case PORT_MII_SEL_S1:
1024 case PORT_RMII_SEL_S1:
1027 case PORT_GMII_SEL_S1:
1037 static void ksz9477_set_xmii(struct ksz_device *dev, int mode, u8 *data)
1041 if (dev->features & NEW_XMII) {
1044 xmii = PORT_MII_SEL;
1047 xmii = PORT_RMII_SEL;
1050 xmii = PORT_GMII_SEL;
1053 xmii = PORT_RGMII_SEL;
1059 xmii = PORT_MII_SEL_S1;
1062 xmii = PORT_RMII_SEL_S1;
1065 xmii = PORT_GMII_SEL_S1;
1068 xmii = PORT_RGMII_SEL_S1;
1072 *data &= ~PORT_MII_SEL_M;
1076 static phy_interface_t ksz9477_get_interface(struct ksz_device *dev, int port)
1078 phy_interface_t interface;
1083 if (port < dev->phy_port_cnt)
1084 return PHY_INTERFACE_MODE_NA;
1085 ksz_pread8(dev, port, REG_PORT_XMII_CTRL_1, &data8);
1086 gbit = ksz9477_get_gbit(dev, data8);
1087 mode = ksz9477_get_xmii(dev, data8);
1090 interface = PHY_INTERFACE_MODE_GMII;
1095 interface = PHY_INTERFACE_MODE_MII;
1098 interface = PHY_INTERFACE_MODE_RMII;
1101 interface = PHY_INTERFACE_MODE_RGMII;
1102 if (data8 & PORT_RGMII_ID_EG_ENABLE)
1103 interface = PHY_INTERFACE_MODE_RGMII_TXID;
1104 if (data8 & PORT_RGMII_ID_IG_ENABLE) {
1105 interface = PHY_INTERFACE_MODE_RGMII_RXID;
1106 if (data8 & PORT_RGMII_ID_EG_ENABLE)
1107 interface = PHY_INTERFACE_MODE_RGMII_ID;
1114 static void ksz9477_port_mmd_write(struct ksz_device *dev, int port,
1115 u8 dev_addr, u16 reg_addr, u16 val)
1117 ksz_pwrite16(dev, port, REG_PORT_PHY_MMD_SETUP,
1118 MMD_SETUP(PORT_MMD_OP_INDEX, dev_addr));
1119 ksz_pwrite16(dev, port, REG_PORT_PHY_MMD_INDEX_DATA, reg_addr);
1120 ksz_pwrite16(dev, port, REG_PORT_PHY_MMD_SETUP,
1121 MMD_SETUP(PORT_MMD_OP_DATA_NO_INCR, dev_addr));
1122 ksz_pwrite16(dev, port, REG_PORT_PHY_MMD_INDEX_DATA, val);
1125 static void ksz9477_phy_errata_setup(struct ksz_device *dev, int port)
1127 /* Apply PHY settings to address errata listed in
1128 * KSZ9477, KSZ9897, KSZ9896, KSZ9567, KSZ8565
1129 * Silicon Errata and Data Sheet Clarification documents:
1131 * Register settings are needed to improve PHY receive performance
1133 ksz9477_port_mmd_write(dev, port, 0x01, 0x6f, 0xdd0b);
1134 ksz9477_port_mmd_write(dev, port, 0x01, 0x8f, 0x6032);
1135 ksz9477_port_mmd_write(dev, port, 0x01, 0x9d, 0x248c);
1136 ksz9477_port_mmd_write(dev, port, 0x01, 0x75, 0x0060);
1137 ksz9477_port_mmd_write(dev, port, 0x01, 0xd3, 0x7777);
1138 ksz9477_port_mmd_write(dev, port, 0x1c, 0x06, 0x3008);
1139 ksz9477_port_mmd_write(dev, port, 0x1c, 0x08, 0x2001);
1141 /* Transmit waveform amplitude can be improved
1142 * (1000BASE-T, 100BASE-TX, 10BASE-Te)
1144 ksz9477_port_mmd_write(dev, port, 0x1c, 0x04, 0x00d0);
1146 /* Energy Efficient Ethernet (EEE) feature select must
1147 * be manually disabled (except on KSZ8565 which is 100Mbit)
1149 if (dev->features & GBIT_SUPPORT)
1150 ksz9477_port_mmd_write(dev, port, 0x07, 0x3c, 0x0000);
1152 /* Register settings are required to meet data sheet
1153 * supply current specifications
1155 ksz9477_port_mmd_write(dev, port, 0x1c, 0x13, 0x6eff);
1156 ksz9477_port_mmd_write(dev, port, 0x1c, 0x14, 0xe6ff);
1157 ksz9477_port_mmd_write(dev, port, 0x1c, 0x15, 0x6eff);
1158 ksz9477_port_mmd_write(dev, port, 0x1c, 0x16, 0xe6ff);
1159 ksz9477_port_mmd_write(dev, port, 0x1c, 0x17, 0x00ff);
1160 ksz9477_port_mmd_write(dev, port, 0x1c, 0x18, 0x43ff);
1161 ksz9477_port_mmd_write(dev, port, 0x1c, 0x19, 0xc3ff);
1162 ksz9477_port_mmd_write(dev, port, 0x1c, 0x1a, 0x6fff);
1163 ksz9477_port_mmd_write(dev, port, 0x1c, 0x1b, 0x07ff);
1164 ksz9477_port_mmd_write(dev, port, 0x1c, 0x1c, 0x0fff);
1165 ksz9477_port_mmd_write(dev, port, 0x1c, 0x1d, 0xe7ff);
1166 ksz9477_port_mmd_write(dev, port, 0x1c, 0x1e, 0xefff);
1167 ksz9477_port_mmd_write(dev, port, 0x1c, 0x20, 0xeeee);
1170 static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
1175 struct ksz_port *p = &dev->ports[port];
1177 /* enable tag tail for host port */
1179 ksz_port_cfg(dev, port, REG_PORT_CTRL_0, PORT_TAIL_TAG_ENABLE,
1182 ksz_port_cfg(dev, port, REG_PORT_CTRL_0, PORT_MAC_LOOPBACK, false);
1184 /* set back pressure */
1185 ksz_port_cfg(dev, port, REG_PORT_MAC_CTRL_1, PORT_BACK_PRESSURE, true);
1187 /* enable broadcast storm limit */
1188 ksz_port_cfg(dev, port, P_BCAST_STORM_CTRL, PORT_BROADCAST_STORM, true);
1190 /* disable DiffServ priority */
1191 ksz_port_cfg(dev, port, P_PRIO_CTRL, PORT_DIFFSERV_PRIO_ENABLE, false);
1193 /* replace priority */
1194 ksz_port_cfg(dev, port, REG_PORT_MRI_MAC_CTRL, PORT_USER_PRIO_CEILING,
1196 ksz9477_port_cfg32(dev, port, REG_PORT_MTI_QUEUE_CTRL_0__4,
1197 MTI_PVID_REPLACE, false);
1199 /* enable 802.1p priority */
1200 ksz_port_cfg(dev, port, P_PRIO_CTRL, PORT_802_1P_PRIO_ENABLE, true);
1202 if (port < dev->phy_port_cnt) {
1203 /* do not force flow control */
1204 ksz_port_cfg(dev, port, REG_PORT_CTRL_0,
1205 PORT_FORCE_TX_FLOW_CTRL | PORT_FORCE_RX_FLOW_CTRL,
1208 if (dev->phy_errata_9477)
1209 ksz9477_phy_errata_setup(dev, port);
1211 /* force flow control */
1212 ksz_port_cfg(dev, port, REG_PORT_CTRL_0,
1213 PORT_FORCE_TX_FLOW_CTRL | PORT_FORCE_RX_FLOW_CTRL,
1216 /* configure MAC to 1G & RGMII mode */
1217 ksz_pread8(dev, port, REG_PORT_XMII_CTRL_1, &data8);
1218 switch (p->interface) {
1219 case PHY_INTERFACE_MODE_MII:
1220 ksz9477_set_xmii(dev, 0, &data8);
1221 ksz9477_set_gbit(dev, false, &data8);
1222 p->phydev.speed = SPEED_100;
1224 case PHY_INTERFACE_MODE_RMII:
1225 ksz9477_set_xmii(dev, 1, &data8);
1226 ksz9477_set_gbit(dev, false, &data8);
1227 p->phydev.speed = SPEED_100;
1229 case PHY_INTERFACE_MODE_GMII:
1230 ksz9477_set_xmii(dev, 2, &data8);
1231 ksz9477_set_gbit(dev, true, &data8);
1232 p->phydev.speed = SPEED_1000;
1235 ksz9477_set_xmii(dev, 3, &data8);
1236 ksz9477_set_gbit(dev, true, &data8);
1237 data8 &= ~PORT_RGMII_ID_IG_ENABLE;
1238 data8 &= ~PORT_RGMII_ID_EG_ENABLE;
1239 if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
1240 p->interface == PHY_INTERFACE_MODE_RGMII_RXID)
1241 data8 |= PORT_RGMII_ID_IG_ENABLE;
1242 if (p->interface == PHY_INTERFACE_MODE_RGMII_ID ||
1243 p->interface == PHY_INTERFACE_MODE_RGMII_TXID)
1244 data8 |= PORT_RGMII_ID_EG_ENABLE;
1245 /* On KSZ9893, disable RGMII in-band status support */
1246 if (dev->features & IS_9893)
1247 data8 &= ~PORT_MII_MAC_MODE;
1248 p->phydev.speed = SPEED_1000;
1251 ksz_pwrite8(dev, port, REG_PORT_XMII_CTRL_1, data8);
1252 p->phydev.duplex = 1;
1254 mutex_lock(&dev->dev_mutex);
1256 member = dev->port_mask;
1258 member = dev->host_mask | p->vid_member;
1259 mutex_unlock(&dev->dev_mutex);
1260 ksz9477_cfg_port_member(dev, port, member);
1262 /* clear pending interrupts */
1263 if (port < dev->phy_port_cnt)
1264 ksz_pread16(dev, port, REG_PORT_PHY_INT_ENABLE, &data16);
1267 static void ksz9477_config_cpu_port(struct dsa_switch *ds)
1269 struct ksz_device *dev = ds->priv;
1273 ds->num_ports = dev->port_cnt;
1275 for (i = 0; i < dev->port_cnt; i++) {
1276 if (dsa_is_cpu_port(ds, i) && (dev->cpu_ports & (1 << i))) {
1277 phy_interface_t interface;
1278 const char *prev_msg;
1279 const char *prev_mode;
1282 dev->host_mask = (1 << dev->cpu_port);
1283 dev->port_mask |= dev->host_mask;
1286 /* Read from XMII register to determine host port
1287 * interface. If set specifically in device tree
1288 * note the difference to help debugging.
1290 interface = ksz9477_get_interface(dev, i);
1291 if (!p->interface) {
1292 if (dev->compat_interface) {
1294 "Using legacy switch \"phy-mode\" property, because it is missing on port %d node. "
1295 "Please update your device tree.\n",
1297 p->interface = dev->compat_interface;
1299 p->interface = interface;
1302 if (interface && interface != p->interface) {
1303 prev_msg = " instead of ";
1304 prev_mode = phy_modes(interface);
1310 "Port%d: using phy mode %s%s%s\n",
1312 phy_modes(p->interface),
1316 /* enable cpu port */
1317 ksz9477_port_setup(dev, i, true);
1318 p->vid_member = dev->port_mask;
1323 dev->member = dev->host_mask;
1325 for (i = 0; i < dev->mib_port_cnt; i++) {
1326 if (i == dev->cpu_port)
1330 /* Initialize to non-zero so that ksz_cfg_port_member() will
1333 p->vid_member = (1 << i);
1334 p->member = dev->port_mask;
1335 ksz9477_port_stp_state_set(ds, i, BR_STATE_DISABLED);
1337 if (i < dev->phy_port_cnt)
1339 if (dev->chip_id == 0x00947700 && i == 6) {
1342 /* SGMII PHY detection code is not implemented yet. */
1348 static int ksz9477_setup(struct dsa_switch *ds)
1350 struct ksz_device *dev = ds->priv;
1353 dev->vlan_cache = devm_kcalloc(dev->dev, sizeof(struct vlan_table),
1354 dev->num_vlans, GFP_KERNEL);
1355 if (!dev->vlan_cache)
1358 ret = ksz9477_reset_switch(dev);
1360 dev_err(ds->dev, "failed to reset switch\n");
1364 /* Required for port partitioning. */
1365 ksz9477_cfg32(dev, REG_SW_QM_CTRL__4, UNICAST_VLAN_BOUNDARY,
1368 /* Do not work correctly with tail tagging. */
1369 ksz_cfg(dev, REG_SW_MAC_CTRL_0, SW_CHECK_LENGTH, false);
1371 /* accept packet up to 2000bytes */
1372 ksz_cfg(dev, REG_SW_MAC_CTRL_1, SW_LEGAL_PACKET_DISABLE, true);
1374 ksz9477_config_cpu_port(ds);
1376 ksz_cfg(dev, REG_SW_MAC_CTRL_1, MULTICAST_STORM_DISABLE, true);
1378 /* queue based egress rate limit */
1379 ksz_cfg(dev, REG_SW_MAC_CTRL_5, SW_OUT_RATE_LIMIT_QUEUE_BASED, true);
1381 /* enable global MIB counter freeze function */
1382 ksz_cfg(dev, REG_SW_MAC_CTRL_6, SW_MIB_COUNTER_FREEZE, true);
1385 ksz_cfg(dev, REG_SW_OPERATION, SW_START, true);
1387 ksz_init_mib_timer(dev);
1392 static const struct dsa_switch_ops ksz9477_switch_ops = {
1393 .get_tag_protocol = ksz9477_get_tag_protocol,
1394 .setup = ksz9477_setup,
1395 .phy_read = ksz9477_phy_read16,
1396 .phy_write = ksz9477_phy_write16,
1397 .phylink_mac_link_down = ksz_mac_link_down,
1398 .port_enable = ksz_enable_port,
1399 .get_strings = ksz9477_get_strings,
1400 .get_ethtool_stats = ksz_get_ethtool_stats,
1401 .get_sset_count = ksz_sset_count,
1402 .port_bridge_join = ksz_port_bridge_join,
1403 .port_bridge_leave = ksz_port_bridge_leave,
1404 .port_stp_state_set = ksz9477_port_stp_state_set,
1405 .port_fast_age = ksz_port_fast_age,
1406 .port_vlan_filtering = ksz9477_port_vlan_filtering,
1407 .port_vlan_prepare = ksz_port_vlan_prepare,
1408 .port_vlan_add = ksz9477_port_vlan_add,
1409 .port_vlan_del = ksz9477_port_vlan_del,
1410 .port_fdb_dump = ksz9477_port_fdb_dump,
1411 .port_fdb_add = ksz9477_port_fdb_add,
1412 .port_fdb_del = ksz9477_port_fdb_del,
1413 .port_mdb_prepare = ksz_port_mdb_prepare,
1414 .port_mdb_add = ksz9477_port_mdb_add,
1415 .port_mdb_del = ksz9477_port_mdb_del,
1416 .port_mirror_add = ksz9477_port_mirror_add,
1417 .port_mirror_del = ksz9477_port_mirror_del,
1420 static u32 ksz9477_get_port_addr(int port, int offset)
1422 return PORT_CTRL_ADDR(port, offset);
1425 static int ksz9477_switch_detect(struct ksz_device *dev)
1433 /* turn off SPI DO Edge select */
1434 ret = ksz_read8(dev, REG_SW_GLOBAL_SERIAL_CTRL_0, &data8);
1438 data8 &= ~SPI_AUTO_EDGE_DETECTION;
1439 ret = ksz_write8(dev, REG_SW_GLOBAL_SERIAL_CTRL_0, data8);
1444 ret = ksz_read32(dev, REG_CHIP_ID0__1, &id32);
1447 ret = ksz_read8(dev, REG_GLOBAL_OPTIONS, &data8);
1451 /* Number of ports can be reduced depending on chip. */
1452 dev->mib_port_cnt = TOTAL_PORT_NUM;
1453 dev->phy_port_cnt = 5;
1455 /* Default capability is gigabit capable. */
1456 dev->features = GBIT_SUPPORT;
1458 dev_dbg(dev->dev, "Switch detect: ID=%08x%02x\n", id32, data8);
1459 id_hi = (u8)(id32 >> 16);
1460 id_lo = (u8)(id32 >> 8);
1461 if ((id_lo & 0xf) == 3) {
1462 /* Chip is from KSZ9893 design. */
1463 dev_info(dev->dev, "Found KSZ9893\n");
1464 dev->features |= IS_9893;
1466 /* Chip does not support gigabit. */
1467 if (data8 & SW_QW_ABLE)
1468 dev->features &= ~GBIT_SUPPORT;
1469 dev->mib_port_cnt = 3;
1470 dev->phy_port_cnt = 2;
1472 dev_info(dev->dev, "Found KSZ9477 or compatible\n");
1473 /* Chip uses new XMII register definitions. */
1474 dev->features |= NEW_XMII;
1476 /* Chip does not support gigabit. */
1477 if (!(data8 & SW_GIGABIT_ABLE))
1478 dev->features &= ~GBIT_SUPPORT;
1481 /* Change chip id to known ones so it can be matched against them. */
1482 id32 = (id_hi << 16) | (id_lo << 8);
1484 dev->chip_id = id32;
1489 struct ksz_chip_data {
1491 const char *dev_name;
1497 bool phy_errata_9477;
1500 static const struct ksz_chip_data ksz9477_switch_chips[] = {
1502 .chip_id = 0x00947700,
1503 .dev_name = "KSZ9477",
1507 .cpu_ports = 0x7F, /* can be configured as cpu port */
1508 .port_cnt = 7, /* total physical port count */
1509 .phy_errata_9477 = true,
1512 .chip_id = 0x00989700,
1513 .dev_name = "KSZ9897",
1517 .cpu_ports = 0x7F, /* can be configured as cpu port */
1518 .port_cnt = 7, /* total physical port count */
1519 .phy_errata_9477 = true,
1522 .chip_id = 0x00989300,
1523 .dev_name = "KSZ9893",
1527 .cpu_ports = 0x07, /* can be configured as cpu port */
1528 .port_cnt = 3, /* total port count */
1531 .chip_id = 0x00956700,
1532 .dev_name = "KSZ9567",
1536 .cpu_ports = 0x7F, /* can be configured as cpu port */
1537 .port_cnt = 7, /* total physical port count */
1538 .phy_errata_9477 = true,
1542 static int ksz9477_switch_init(struct ksz_device *dev)
1546 dev->ds->ops = &ksz9477_switch_ops;
1548 for (i = 0; i < ARRAY_SIZE(ksz9477_switch_chips); i++) {
1549 const struct ksz_chip_data *chip = &ksz9477_switch_chips[i];
1551 if (dev->chip_id == chip->chip_id) {
1552 dev->name = chip->dev_name;
1553 dev->num_vlans = chip->num_vlans;
1554 dev->num_alus = chip->num_alus;
1555 dev->num_statics = chip->num_statics;
1556 dev->port_cnt = chip->port_cnt;
1557 dev->cpu_ports = chip->cpu_ports;
1558 dev->phy_errata_9477 = chip->phy_errata_9477;
1564 /* no switch found */
1568 dev->port_mask = (1 << dev->port_cnt) - 1;
1570 dev->reg_mib_cnt = SWITCH_COUNTER_NUM;
1571 dev->mib_cnt = TOTAL_SWITCH_COUNTER_NUM;
1573 i = dev->mib_port_cnt;
1574 dev->ports = devm_kzalloc(dev->dev, sizeof(struct ksz_port) * i,
1578 for (i = 0; i < dev->mib_port_cnt; i++) {
1579 mutex_init(&dev->ports[i].mib.cnt_mutex);
1580 dev->ports[i].mib.counters =
1581 devm_kzalloc(dev->dev,
1583 (TOTAL_SWITCH_COUNTER_NUM + 1),
1585 if (!dev->ports[i].mib.counters)
1589 /* set the real number of ports */
1590 dev->ds->num_ports = dev->port_cnt;
1595 static void ksz9477_switch_exit(struct ksz_device *dev)
1597 ksz9477_reset_switch(dev);
1600 static const struct ksz_dev_ops ksz9477_dev_ops = {
1601 .get_port_addr = ksz9477_get_port_addr,
1602 .cfg_port_member = ksz9477_cfg_port_member,
1603 .flush_dyn_mac_table = ksz9477_flush_dyn_mac_table,
1604 .port_setup = ksz9477_port_setup,
1605 .r_mib_cnt = ksz9477_r_mib_cnt,
1606 .r_mib_pkt = ksz9477_r_mib_pkt,
1607 .freeze_mib = ksz9477_freeze_mib,
1608 .port_init_cnt = ksz9477_port_init_cnt,
1609 .shutdown = ksz9477_reset_switch,
1610 .detect = ksz9477_switch_detect,
1611 .init = ksz9477_switch_init,
1612 .exit = ksz9477_switch_exit,
1615 int ksz9477_switch_register(struct ksz_device *dev)
1618 struct phy_device *phydev;
1620 ret = ksz_switch_register(dev, &ksz9477_dev_ops);
1624 for (i = 0; i < dev->phy_port_cnt; ++i) {
1625 if (!dsa_is_user_port(dev->ds, i))
1628 phydev = dsa_to_port(dev->ds, i)->slave->phydev;
1630 /* The MAC actually cannot run in 1000 half-duplex mode. */
1631 phy_remove_link_mode(phydev,
1632 ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
1634 /* PHY does not support gigabit. */
1635 if (!(dev->features & GBIT_SUPPORT))
1636 phy_remove_link_mode(phydev,
1637 ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
1641 EXPORT_SYMBOL(ksz9477_switch_register);
1643 MODULE_AUTHOR("Woojung Huh <Woojung.Huh@microchip.com>");
1644 MODULE_DESCRIPTION("Microchip KSZ9477 Series Switch DSA Driver");
1645 MODULE_LICENSE("GPL");