2 * ar8216.c: AR8216 switch driver
4 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
5 * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
19 #include <linux/module.h>
20 #include <linux/init.h>
21 #include <linux/list.h>
22 #include <linux/if_ether.h>
23 #include <linux/skbuff.h>
24 #include <linux/netdevice.h>
25 #include <linux/netlink.h>
26 #include <linux/bitops.h>
27 #include <net/genetlink.h>
28 #include <linux/switch.h>
29 #include <linux/delay.h>
30 #include <linux/phy.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/lockdep.h>
34 #include <linux/ar8216_platform.h>
35 #include <linux/workqueue.h>
38 /* size of the vlan table */
39 #define AR8X16_MAX_VLANS 128
40 #define AR8X16_PROBE_RETRIES 10
41 #define AR8X16_MAX_PORTS 8
43 #define AR8XXX_MIB_WORK_DELAY 2000 /* msecs */
47 #define AR8XXX_CAP_GIGE BIT(0)
48 #define AR8XXX_CAP_MIB_COUNTERS BIT(1)
51 AR8XXX_VER_AR8216 = 0x01,
52 AR8XXX_VER_AR8236 = 0x03,
53 AR8XXX_VER_AR8316 = 0x10,
54 AR8XXX_VER_AR8327 = 0x12,
57 struct ar8xxx_mib_desc {
66 int (*hw_init)(struct ar8216_priv *priv);
67 void (*init_globals)(struct ar8216_priv *priv);
68 void (*init_port)(struct ar8216_priv *priv, int port);
69 void (*setup_port)(struct ar8216_priv *priv, int port, u32 egress,
70 u32 ingress, u32 members, u32 pvid);
71 u32 (*read_port_status)(struct ar8216_priv *priv, int port);
72 int (*atu_flush)(struct ar8216_priv *priv);
73 void (*vtu_flush)(struct ar8216_priv *priv);
74 void (*vtu_load_vlan)(struct ar8216_priv *priv, u32 vid, u32 port_mask);
76 const struct ar8xxx_mib_desc *mib_decs;
81 struct switch_dev dev;
82 struct phy_device *phy;
83 u32 (*read)(struct ar8216_priv *priv, int reg);
84 void (*write)(struct ar8216_priv *priv, int reg, u32 val);
85 const struct net_device_ops *ndo_old;
86 struct net_device_ops ndo;
87 struct mutex reg_mutex;
90 const struct ar8xxx_chip *chip;
98 struct mutex mib_lock;
99 struct delayed_work mib_work;
103 /* all fields below are cleared on reset */
105 u16 vlan_id[AR8X16_MAX_VLANS];
106 u8 vlan_table[AR8X16_MAX_VLANS];
108 u16 pvid[AR8X16_MAX_PORTS];
111 #define MIB_DESC(_s , _o, _n) \
118 static const struct ar8xxx_mib_desc ar8216_mibs[] = {
119 MIB_DESC(1, AR8216_STATS_RXBROAD, "RxBroad"),
120 MIB_DESC(1, AR8216_STATS_RXPAUSE, "RxPause"),
121 MIB_DESC(1, AR8216_STATS_RXMULTI, "RxMulti"),
122 MIB_DESC(1, AR8216_STATS_RXFCSERR, "RxFcsErr"),
123 MIB_DESC(1, AR8216_STATS_RXALIGNERR, "RxAlignErr"),
124 MIB_DESC(1, AR8216_STATS_RXRUNT, "RxRunt"),
125 MIB_DESC(1, AR8216_STATS_RXFRAGMENT, "RxFragment"),
126 MIB_DESC(1, AR8216_STATS_RX64BYTE, "Rx64Byte"),
127 MIB_DESC(1, AR8216_STATS_RX128BYTE, "Rx128Byte"),
128 MIB_DESC(1, AR8216_STATS_RX256BYTE, "Rx256Byte"),
129 MIB_DESC(1, AR8216_STATS_RX512BYTE, "Rx512Byte"),
130 MIB_DESC(1, AR8216_STATS_RX1024BYTE, "Rx1024Byte"),
131 MIB_DESC(1, AR8216_STATS_RXMAXBYTE, "RxMaxByte"),
132 MIB_DESC(1, AR8216_STATS_RXTOOLONG, "RxTooLong"),
133 MIB_DESC(2, AR8216_STATS_RXGOODBYTE, "RxGoodByte"),
134 MIB_DESC(2, AR8216_STATS_RXBADBYTE, "RxBadByte"),
135 MIB_DESC(1, AR8216_STATS_RXOVERFLOW, "RxOverFlow"),
136 MIB_DESC(1, AR8216_STATS_FILTERED, "Filtered"),
137 MIB_DESC(1, AR8216_STATS_TXBROAD, "TxBroad"),
138 MIB_DESC(1, AR8216_STATS_TXPAUSE, "TxPause"),
139 MIB_DESC(1, AR8216_STATS_TXMULTI, "TxMulti"),
140 MIB_DESC(1, AR8216_STATS_TXUNDERRUN, "TxUnderRun"),
141 MIB_DESC(1, AR8216_STATS_TX64BYTE, "Tx64Byte"),
142 MIB_DESC(1, AR8216_STATS_TX128BYTE, "Tx128Byte"),
143 MIB_DESC(1, AR8216_STATS_TX256BYTE, "Tx256Byte"),
144 MIB_DESC(1, AR8216_STATS_TX512BYTE, "Tx512Byte"),
145 MIB_DESC(1, AR8216_STATS_TX1024BYTE, "Tx1024Byte"),
146 MIB_DESC(1, AR8216_STATS_TXMAXBYTE, "TxMaxByte"),
147 MIB_DESC(1, AR8216_STATS_TXOVERSIZE, "TxOverSize"),
148 MIB_DESC(2, AR8216_STATS_TXBYTE, "TxByte"),
149 MIB_DESC(1, AR8216_STATS_TXCOLLISION, "TxCollision"),
150 MIB_DESC(1, AR8216_STATS_TXABORTCOL, "TxAbortCol"),
151 MIB_DESC(1, AR8216_STATS_TXMULTICOL, "TxMultiCol"),
152 MIB_DESC(1, AR8216_STATS_TXSINGLECOL, "TxSingleCol"),
153 MIB_DESC(1, AR8216_STATS_TXEXCDEFER, "TxExcDefer"),
154 MIB_DESC(1, AR8216_STATS_TXDEFER, "TxDefer"),
155 MIB_DESC(1, AR8216_STATS_TXLATECOL, "TxLateCol"),
158 static const struct ar8xxx_mib_desc ar8236_mibs[] = {
159 MIB_DESC(1, AR8236_STATS_RXBROAD, "RxBroad"),
160 MIB_DESC(1, AR8236_STATS_RXPAUSE, "RxPause"),
161 MIB_DESC(1, AR8236_STATS_RXMULTI, "RxMulti"),
162 MIB_DESC(1, AR8236_STATS_RXFCSERR, "RxFcsErr"),
163 MIB_DESC(1, AR8236_STATS_RXALIGNERR, "RxAlignErr"),
164 MIB_DESC(1, AR8236_STATS_RXRUNT, "RxRunt"),
165 MIB_DESC(1, AR8236_STATS_RXFRAGMENT, "RxFragment"),
166 MIB_DESC(1, AR8236_STATS_RX64BYTE, "Rx64Byte"),
167 MIB_DESC(1, AR8236_STATS_RX128BYTE, "Rx128Byte"),
168 MIB_DESC(1, AR8236_STATS_RX256BYTE, "Rx256Byte"),
169 MIB_DESC(1, AR8236_STATS_RX512BYTE, "Rx512Byte"),
170 MIB_DESC(1, AR8236_STATS_RX1024BYTE, "Rx1024Byte"),
171 MIB_DESC(1, AR8236_STATS_RX1518BYTE, "Rx1518Byte"),
172 MIB_DESC(1, AR8236_STATS_RXMAXBYTE, "RxMaxByte"),
173 MIB_DESC(1, AR8236_STATS_RXTOOLONG, "RxTooLong"),
174 MIB_DESC(2, AR8236_STATS_RXGOODBYTE, "RxGoodByte"),
175 MIB_DESC(2, AR8236_STATS_RXBADBYTE, "RxBadByte"),
176 MIB_DESC(1, AR8236_STATS_RXOVERFLOW, "RxOverFlow"),
177 MIB_DESC(1, AR8236_STATS_FILTERED, "Filtered"),
178 MIB_DESC(1, AR8236_STATS_TXBROAD, "TxBroad"),
179 MIB_DESC(1, AR8236_STATS_TXPAUSE, "TxPause"),
180 MIB_DESC(1, AR8236_STATS_TXMULTI, "TxMulti"),
181 MIB_DESC(1, AR8236_STATS_TXUNDERRUN, "TxUnderRun"),
182 MIB_DESC(1, AR8236_STATS_TX64BYTE, "Tx64Byte"),
183 MIB_DESC(1, AR8236_STATS_TX128BYTE, "Tx128Byte"),
184 MIB_DESC(1, AR8236_STATS_TX256BYTE, "Tx256Byte"),
185 MIB_DESC(1, AR8236_STATS_TX512BYTE, "Tx512Byte"),
186 MIB_DESC(1, AR8236_STATS_TX1024BYTE, "Tx1024Byte"),
187 MIB_DESC(1, AR8236_STATS_TX1518BYTE, "Tx1518Byte"),
188 MIB_DESC(1, AR8236_STATS_TXMAXBYTE, "TxMaxByte"),
189 MIB_DESC(1, AR8236_STATS_TXOVERSIZE, "TxOverSize"),
190 MIB_DESC(2, AR8236_STATS_TXBYTE, "TxByte"),
191 MIB_DESC(1, AR8236_STATS_TXCOLLISION, "TxCollision"),
192 MIB_DESC(1, AR8236_STATS_TXABORTCOL, "TxAbortCol"),
193 MIB_DESC(1, AR8236_STATS_TXMULTICOL, "TxMultiCol"),
194 MIB_DESC(1, AR8236_STATS_TXSINGLECOL, "TxSingleCol"),
195 MIB_DESC(1, AR8236_STATS_TXEXCDEFER, "TxExcDefer"),
196 MIB_DESC(1, AR8236_STATS_TXDEFER, "TxDefer"),
197 MIB_DESC(1, AR8236_STATS_TXLATECOL, "TxLateCol"),
200 #define to_ar8216(_dev) container_of(_dev, struct ar8216_priv, dev)
202 static inline bool ar8xxx_has_gige(struct ar8216_priv *priv)
204 return priv->chip->caps & AR8XXX_CAP_GIGE;
207 static inline bool ar8xxx_has_mib_counters(struct ar8216_priv *priv)
209 return priv->chip->caps & AR8XXX_CAP_MIB_COUNTERS;
212 static inline bool chip_is_ar8216(struct ar8216_priv *priv)
214 return priv->chip_ver == AR8XXX_VER_AR8216;
217 static inline bool chip_is_ar8236(struct ar8216_priv *priv)
219 return priv->chip_ver == AR8XXX_VER_AR8236;
222 static inline bool chip_is_ar8316(struct ar8216_priv *priv)
224 return priv->chip_ver == AR8XXX_VER_AR8316;
227 static inline bool chip_is_ar8327(struct ar8216_priv *priv)
229 return priv->chip_ver == AR8XXX_VER_AR8327;
233 split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page)
236 *r1 = regaddr & 0x1e;
242 *page = regaddr & 0x1ff;
246 ar8216_mii_read(struct ar8216_priv *priv, int reg)
248 struct phy_device *phy = priv->phy;
249 struct mii_bus *bus = phy->bus;
253 split_addr((u32) reg, &r1, &r2, &page);
255 mutex_lock(&bus->mdio_lock);
257 bus->write(bus, 0x18, 0, page);
258 usleep_range(1000, 2000); /* wait for the page switch to propagate */
259 lo = bus->read(bus, 0x10 | r2, r1);
260 hi = bus->read(bus, 0x10 | r2, r1 + 1);
262 mutex_unlock(&bus->mdio_lock);
264 return (hi << 16) | lo;
268 ar8216_mii_write(struct ar8216_priv *priv, int reg, u32 val)
270 struct phy_device *phy = priv->phy;
271 struct mii_bus *bus = phy->bus;
275 split_addr((u32) reg, &r1, &r2, &r3);
277 hi = (u16) (val >> 16);
279 mutex_lock(&bus->mdio_lock);
281 bus->write(bus, 0x18, 0, r3);
282 usleep_range(1000, 2000); /* wait for the page switch to propagate */
283 if (priv->mii_lo_first) {
284 bus->write(bus, 0x10 | r2, r1, lo);
285 bus->write(bus, 0x10 | r2, r1 + 1, hi);
287 bus->write(bus, 0x10 | r2, r1 + 1, hi);
288 bus->write(bus, 0x10 | r2, r1, lo);
291 mutex_unlock(&bus->mdio_lock);
295 ar8216_phy_dbg_write(struct ar8216_priv *priv, int phy_addr,
296 u16 dbg_addr, u16 dbg_data)
298 struct mii_bus *bus = priv->phy->bus;
300 mutex_lock(&bus->mdio_lock);
301 bus->write(bus, phy_addr, MII_ATH_DBG_ADDR, dbg_addr);
302 bus->write(bus, phy_addr, MII_ATH_DBG_DATA, dbg_data);
303 mutex_unlock(&bus->mdio_lock);
307 ar8216_phy_mmd_write(struct ar8216_priv *priv, int phy_addr, u16 addr, u16 data)
309 struct mii_bus *bus = priv->phy->bus;
311 mutex_lock(&bus->mdio_lock);
312 bus->write(bus, phy_addr, MII_ATH_MMD_ADDR, addr);
313 bus->write(bus, phy_addr, MII_ATH_MMD_DATA, data);
314 mutex_unlock(&bus->mdio_lock);
318 ar8216_rmw(struct ar8216_priv *priv, int reg, u32 mask, u32 val)
322 lockdep_assert_held(&priv->reg_mutex);
324 v = priv->read(priv, reg);
327 priv->write(priv, reg, v);
333 ar8216_reg_set(struct ar8216_priv *priv, int reg, u32 val)
337 lockdep_assert_held(&priv->reg_mutex);
339 v = priv->read(priv, reg);
341 priv->write(priv, reg, v);
345 ar8216_reg_wait(struct ar8216_priv *priv, u32 reg, u32 mask, u32 val,
350 for (i = 0; i < timeout; i++) {
353 t = priv->read(priv, reg);
354 if ((t & mask) == val)
357 usleep_range(1000, 2000);
364 ar8216_mib_op(struct ar8216_priv *priv, u32 op)
369 lockdep_assert_held(&priv->mib_lock);
371 if (chip_is_ar8327(priv))
372 mib_func = AR8327_REG_MIB_FUNC;
374 mib_func = AR8216_REG_MIB_FUNC;
376 mutex_lock(&priv->reg_mutex);
377 /* Capture the hardware statistics for all ports */
378 ar8216_rmw(priv, mib_func, AR8216_MIB_FUNC, (op << AR8216_MIB_FUNC_S));
379 mutex_unlock(&priv->reg_mutex);
381 /* Wait for the capturing to complete. */
382 ret = ar8216_reg_wait(priv, mib_func, AR8216_MIB_BUSY, 0, 10);
393 ar8216_mib_capture(struct ar8216_priv *priv)
395 return ar8216_mib_op(priv, AR8216_MIB_FUNC_CAPTURE);
399 ar8216_mib_flush(struct ar8216_priv *priv)
401 return ar8216_mib_op(priv, AR8216_MIB_FUNC_FLUSH);
405 ar8216_mib_fetch_port_stat(struct ar8216_priv *priv, int port, bool flush)
411 WARN_ON(port >= priv->dev.ports);
413 lockdep_assert_held(&priv->mib_lock);
415 if (chip_is_ar8327(priv))
416 base = AR8327_REG_PORT_STATS_BASE(port);
417 else if (chip_is_ar8236(priv) ||
418 chip_is_ar8316(priv))
419 base = AR8236_REG_PORT_STATS_BASE(port);
421 base = AR8216_REG_PORT_STATS_BASE(port);
423 mib_stats = &priv->mib_stats[port * priv->chip->num_mibs];
424 for (i = 0; i < priv->chip->num_mibs; i++) {
425 const struct ar8xxx_mib_desc *mib;
428 mib = &priv->chip->mib_decs[i];
429 t = priv->read(priv, base + mib->offset);
430 if (mib->size == 2) {
433 hi = priv->read(priv, base + mib->offset + 4);
445 ar8216_read_port_link(struct ar8216_priv *priv, int port,
446 struct switch_port_link *link)
451 memset(link, '\0', sizeof(*link));
453 status = priv->chip->read_port_status(priv, port);
455 link->aneg = !!(status & AR8216_PORT_STATUS_LINK_AUTO);
457 link->link = !!(status & AR8216_PORT_STATUS_LINK_UP);
464 link->duplex = !!(status & AR8216_PORT_STATUS_DUPLEX);
465 link->tx_flow = !!(status & AR8216_PORT_STATUS_TXFLOW);
466 link->rx_flow = !!(status & AR8216_PORT_STATUS_RXFLOW);
468 speed = (status & AR8216_PORT_STATUS_SPEED) >>
469 AR8216_PORT_STATUS_SPEED_S;
472 case AR8216_PORT_SPEED_10M:
473 link->speed = SWITCH_PORT_SPEED_10;
475 case AR8216_PORT_SPEED_100M:
476 link->speed = SWITCH_PORT_SPEED_100;
478 case AR8216_PORT_SPEED_1000M:
479 link->speed = SWITCH_PORT_SPEED_1000;
482 link->speed = SWITCH_PORT_SPEED_UNKNOWN;
487 static struct sk_buff *
488 ar8216_mangle_tx(struct net_device *dev, struct sk_buff *skb)
490 struct ar8216_priv *priv = dev->phy_ptr;
499 if (unlikely(skb_headroom(skb) < 2)) {
500 if (pskb_expand_head(skb, 2, 0, GFP_ATOMIC) < 0)
504 buf = skb_push(skb, 2);
512 dev_kfree_skb_any(skb);
517 ar8216_mangle_rx(struct net_device *dev, struct sk_buff *skb)
519 struct ar8216_priv *priv;
527 /* don't strip the header if vlan mode is disabled */
531 /* strip header, get vlan id */
535 /* check for vlan header presence */
536 if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00))
541 /* no need to fix up packets coming from a tagged source */
542 if (priv->vlan_tagged & (1 << port))
545 /* lookup port vid from local table, the switch passes an invalid vlan id */
546 vlan = priv->vlan_id[priv->pvid[port]];
549 buf[14 + 2] |= vlan >> 8;
550 buf[15 + 2] = vlan & 0xff;
554 ar8216_wait_bit(struct ar8216_priv *priv, int reg, u32 mask, u32 val)
560 t = priv->read(priv, reg);
561 if ((t & mask) == val)
570 pr_err("ar8216: timeout on reg %08x: %08x & %08x != %08x\n",
571 (unsigned int) reg, t, mask, val);
576 ar8216_vtu_op(struct ar8216_priv *priv, u32 op, u32 val)
578 if (ar8216_wait_bit(priv, AR8216_REG_VTU, AR8216_VTU_ACTIVE, 0))
580 if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) {
581 val &= AR8216_VTUDATA_MEMBER;
582 val |= AR8216_VTUDATA_VALID;
583 priv->write(priv, AR8216_REG_VTU_DATA, val);
585 op |= AR8216_VTU_ACTIVE;
586 priv->write(priv, AR8216_REG_VTU, op);
590 ar8216_vtu_flush(struct ar8216_priv *priv)
592 ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
596 ar8216_vtu_load_vlan(struct ar8216_priv *priv, u32 vid, u32 port_mask)
600 op = AR8216_VTU_OP_LOAD | (vid << AR8216_VTU_VID_S);
601 ar8216_vtu_op(priv, op, port_mask);
605 ar8216_atu_flush(struct ar8216_priv *priv)
609 ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0);
611 priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH);
617 ar8216_read_port_status(struct ar8216_priv *priv, int port)
619 return priv->read(priv, AR8216_REG_PORT_STATUS(port));
623 ar8216_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
624 u32 members, u32 pvid)
628 if (chip_is_ar8216(priv) && priv->vlan && port == AR8216_PORT_CPU)
629 header = AR8216_PORT_CTRL_HEADER;
633 ar8216_rmw(priv, AR8216_REG_PORT_CTRL(port),
634 AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
635 AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
636 AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
637 AR8216_PORT_CTRL_LEARN | header |
638 (egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
639 (AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
641 ar8216_rmw(priv, AR8216_REG_PORT_VLAN(port),
642 AR8216_PORT_VLAN_DEST_PORTS | AR8216_PORT_VLAN_MODE |
643 AR8216_PORT_VLAN_DEFAULT_ID,
644 (members << AR8216_PORT_VLAN_DEST_PORTS_S) |
645 (ingress << AR8216_PORT_VLAN_MODE_S) |
646 (pvid << AR8216_PORT_VLAN_DEFAULT_ID_S));
650 ar8216_hw_init(struct ar8216_priv *priv)
656 ar8216_init_globals(struct ar8216_priv *priv)
658 /* standard atheros magic */
659 priv->write(priv, 0x38, 0xc000050e);
661 ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
662 AR8216_GCTRL_MTU, 1518 + 8 + 2);
666 ar8216_init_port(struct ar8216_priv *priv, int port)
668 /* Enable port learning and tx */
669 priv->write(priv, AR8216_REG_PORT_CTRL(port),
670 AR8216_PORT_CTRL_LEARN |
671 (4 << AR8216_PORT_CTRL_STATE_S));
673 priv->write(priv, AR8216_REG_PORT_VLAN(port), 0);
675 if (port == AR8216_PORT_CPU) {
676 priv->write(priv, AR8216_REG_PORT_STATUS(port),
677 AR8216_PORT_STATUS_LINK_UP |
678 (ar8xxx_has_gige(priv) ?
679 AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) |
680 AR8216_PORT_STATUS_TXMAC |
681 AR8216_PORT_STATUS_RXMAC |
682 (chip_is_ar8316(priv) ? AR8216_PORT_STATUS_RXFLOW : 0) |
683 (chip_is_ar8316(priv) ? AR8216_PORT_STATUS_TXFLOW : 0) |
684 AR8216_PORT_STATUS_DUPLEX);
686 priv->write(priv, AR8216_REG_PORT_STATUS(port),
687 AR8216_PORT_STATUS_LINK_AUTO);
691 static const struct ar8xxx_chip ar8216_chip = {
692 .caps = AR8XXX_CAP_MIB_COUNTERS,
694 .hw_init = ar8216_hw_init,
695 .init_globals = ar8216_init_globals,
696 .init_port = ar8216_init_port,
697 .setup_port = ar8216_setup_port,
698 .read_port_status = ar8216_read_port_status,
699 .atu_flush = ar8216_atu_flush,
700 .vtu_flush = ar8216_vtu_flush,
701 .vtu_load_vlan = ar8216_vtu_load_vlan,
703 .num_mibs = ARRAY_SIZE(ar8216_mibs),
704 .mib_decs = ar8216_mibs,
708 ar8236_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
709 u32 members, u32 pvid)
711 ar8216_rmw(priv, AR8216_REG_PORT_CTRL(port),
712 AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
713 AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
714 AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
715 AR8216_PORT_CTRL_LEARN |
716 (egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
717 (AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
719 ar8216_rmw(priv, AR8236_REG_PORT_VLAN(port),
720 AR8236_PORT_VLAN_DEFAULT_ID,
721 (pvid << AR8236_PORT_VLAN_DEFAULT_ID_S));
723 ar8216_rmw(priv, AR8236_REG_PORT_VLAN2(port),
724 AR8236_PORT_VLAN2_VLAN_MODE |
725 AR8236_PORT_VLAN2_MEMBER,
726 (ingress << AR8236_PORT_VLAN2_VLAN_MODE_S) |
727 (members << AR8236_PORT_VLAN2_MEMBER_S));
731 ar8236_hw_init(struct ar8216_priv *priv)
736 if (priv->initialized)
739 /* Initialize the PHYs */
740 bus = priv->phy->bus;
741 for (i = 0; i < 5; i++) {
742 mdiobus_write(bus, i, MII_ADVERTISE,
743 ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
744 ADVERTISE_PAUSE_ASYM);
745 mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
749 priv->initialized = true;
754 ar8236_init_globals(struct ar8216_priv *priv)
756 /* enable jumbo frames */
757 ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
758 AR8316_GCTRL_MTU, 9018 + 8 + 2);
760 /* Enable MIB counters */
761 ar8216_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN,
762 (AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) |
766 static const struct ar8xxx_chip ar8236_chip = {
767 .caps = AR8XXX_CAP_MIB_COUNTERS,
768 .hw_init = ar8236_hw_init,
769 .init_globals = ar8236_init_globals,
770 .init_port = ar8216_init_port,
771 .setup_port = ar8236_setup_port,
772 .read_port_status = ar8216_read_port_status,
773 .atu_flush = ar8216_atu_flush,
774 .vtu_flush = ar8216_vtu_flush,
775 .vtu_load_vlan = ar8216_vtu_load_vlan,
777 .num_mibs = ARRAY_SIZE(ar8236_mibs),
778 .mib_decs = ar8236_mibs,
782 ar8316_hw_init(struct ar8216_priv *priv)
788 val = priv->read(priv, 0x8);
790 if (priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
791 if (priv->port4_phy) {
792 /* value taken from Ubiquiti RouterStation Pro */
794 printk(KERN_INFO "ar8316: Using port 4 as PHY\n");
797 printk(KERN_INFO "ar8316: Using port 4 as switch port\n");
799 } else if (priv->phy->interface == PHY_INTERFACE_MODE_GMII) {
800 /* value taken from AVM Fritz!Box 7390 sources */
803 /* no known value for phy interface */
804 printk(KERN_ERR "ar8316: unsupported mii mode: %d.\n",
805 priv->phy->interface);
812 priv->write(priv, 0x8, newval);
814 /* Initialize the ports */
815 bus = priv->phy->bus;
816 for (i = 0; i < 5; i++) {
817 if ((i == 4) && priv->port4_phy &&
818 priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
819 /* work around for phy4 rgmii mode */
820 ar8216_phy_dbg_write(priv, i, 0x12, 0x480c);
822 ar8216_phy_dbg_write(priv, i, 0x0, 0x824e);
824 ar8216_phy_dbg_write(priv, i, 0x5, 0x3d47);
828 /* initialize the port itself */
829 mdiobus_write(bus, i, MII_ADVERTISE,
830 ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
831 mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
832 mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
837 priv->initialized = true;
842 ar8316_init_globals(struct ar8216_priv *priv)
844 /* standard atheros magic */
845 priv->write(priv, 0x38, 0xc000050e);
847 /* enable cpu port to receive multicast and broadcast frames */
848 priv->write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f);
850 /* enable jumbo frames */
851 ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
852 AR8316_GCTRL_MTU, 9018 + 8 + 2);
854 /* Enable MIB counters */
855 ar8216_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN,
856 (AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) |
860 static const struct ar8xxx_chip ar8316_chip = {
861 .caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
862 .hw_init = ar8316_hw_init,
863 .init_globals = ar8316_init_globals,
864 .init_port = ar8216_init_port,
865 .setup_port = ar8216_setup_port,
866 .read_port_status = ar8216_read_port_status,
867 .atu_flush = ar8216_atu_flush,
868 .vtu_flush = ar8216_vtu_flush,
869 .vtu_load_vlan = ar8216_vtu_load_vlan,
871 .num_mibs = ARRAY_SIZE(ar8236_mibs),
872 .mib_decs = ar8236_mibs,
876 ar8327_get_pad_cfg(struct ar8327_pad_cfg *cfg)
888 case AR8327_PAD_MAC2MAC_MII:
889 t = AR8327_PAD_MAC_MII_EN;
891 t |= AR8327_PAD_MAC_MII_RXCLK_SEL;
893 t |= AR8327_PAD_MAC_MII_TXCLK_SEL;
896 case AR8327_PAD_MAC2MAC_GMII:
897 t = AR8327_PAD_MAC_GMII_EN;
899 t |= AR8327_PAD_MAC_GMII_RXCLK_SEL;
901 t |= AR8327_PAD_MAC_GMII_TXCLK_SEL;
904 case AR8327_PAD_MAC_SGMII:
905 t = AR8327_PAD_SGMII_EN;
908 * WAR for the QUalcomm Atheros AP136 board.
909 * It seems that RGMII TX/RX delay settings needs to be
910 * applied for SGMII mode as well, The ethernet is not
911 * reliable without this.
913 t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S;
914 t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S;
915 if (cfg->rxclk_delay_en)
916 t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN;
917 if (cfg->txclk_delay_en)
918 t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN;
922 case AR8327_PAD_MAC2PHY_MII:
923 t = AR8327_PAD_PHY_MII_EN;
925 t |= AR8327_PAD_PHY_MII_RXCLK_SEL;
927 t |= AR8327_PAD_PHY_MII_TXCLK_SEL;
930 case AR8327_PAD_MAC2PHY_GMII:
931 t = AR8327_PAD_PHY_GMII_EN;
932 if (cfg->pipe_rxclk_sel)
933 t |= AR8327_PAD_PHY_GMII_PIPE_RXCLK_SEL;
935 t |= AR8327_PAD_PHY_GMII_RXCLK_SEL;
937 t |= AR8327_PAD_PHY_GMII_TXCLK_SEL;
940 case AR8327_PAD_MAC_RGMII:
941 t = AR8327_PAD_RGMII_EN;
942 t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S;
943 t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S;
944 if (cfg->rxclk_delay_en)
945 t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN;
946 if (cfg->txclk_delay_en)
947 t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN;
950 case AR8327_PAD_PHY_GMII:
951 t = AR8327_PAD_PHYX_GMII_EN;
954 case AR8327_PAD_PHY_RGMII:
955 t = AR8327_PAD_PHYX_RGMII_EN;
958 case AR8327_PAD_PHY_MII:
959 t = AR8327_PAD_PHYX_MII_EN;
967 ar8327_phy_fixup(struct ar8216_priv *priv, int phy)
969 switch (priv->chip_rev) {
971 /* For 100M waveform */
972 ar8216_phy_dbg_write(priv, phy, 0, 0x02ea);
973 /* Turn on Gigabit clock */
974 ar8216_phy_dbg_write(priv, phy, 0x3d, 0x68a0);
978 ar8216_phy_mmd_write(priv, phy, 0x7, 0x3c);
979 ar8216_phy_mmd_write(priv, phy, 0x4007, 0x0);
982 ar8216_phy_mmd_write(priv, phy, 0x3, 0x800d);
983 ar8216_phy_mmd_write(priv, phy, 0x4003, 0x803f);
985 ar8216_phy_dbg_write(priv, phy, 0x3d, 0x6860);
986 ar8216_phy_dbg_write(priv, phy, 0x5, 0x2c46);
987 ar8216_phy_dbg_write(priv, phy, 0x3c, 0x6000);
993 ar8327_hw_init(struct ar8216_priv *priv)
995 struct ar8327_platform_data *pdata;
996 struct ar8327_led_cfg *led_cfg;
1002 pdata = priv->phy->dev.platform_data;
1006 t = ar8327_get_pad_cfg(pdata->pad0_cfg);
1007 priv->write(priv, AR8327_REG_PAD0_MODE, t);
1008 t = ar8327_get_pad_cfg(pdata->pad5_cfg);
1009 priv->write(priv, AR8327_REG_PAD5_MODE, t);
1010 t = ar8327_get_pad_cfg(pdata->pad6_cfg);
1011 priv->write(priv, AR8327_REG_PAD6_MODE, t);
1013 pos = priv->read(priv, AR8327_REG_POWER_ON_STRIP);
1016 led_cfg = pdata->led_cfg;
1018 if (led_cfg->open_drain)
1019 new_pos |= AR8327_POWER_ON_STRIP_LED_OPEN_EN;
1021 new_pos &= ~AR8327_POWER_ON_STRIP_LED_OPEN_EN;
1023 priv->write(priv, AR8327_REG_LED_CTRL0, led_cfg->led_ctrl0);
1024 priv->write(priv, AR8327_REG_LED_CTRL1, led_cfg->led_ctrl1);
1025 priv->write(priv, AR8327_REG_LED_CTRL2, led_cfg->led_ctrl2);
1026 priv->write(priv, AR8327_REG_LED_CTRL3, led_cfg->led_ctrl3);
1029 if (new_pos != pos) {
1030 new_pos |= AR8327_POWER_ON_STRIP_POWER_ON_SEL;
1031 priv->write(priv, AR8327_REG_POWER_ON_STRIP, new_pos);
1034 bus = priv->phy->bus;
1035 for (i = 0; i < AR8327_NUM_PHYS; i++) {
1036 ar8327_phy_fixup(priv, i);
1038 /* start aneg on the PHY */
1039 mdiobus_write(bus, i, MII_ADVERTISE, ADVERTISE_ALL |
1040 ADVERTISE_PAUSE_CAP |
1041 ADVERTISE_PAUSE_ASYM);
1042 mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
1043 mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
1052 ar8327_init_globals(struct ar8216_priv *priv)
1056 /* enable CPU port and disable mirror port */
1057 t = AR8327_FWD_CTRL0_CPU_PORT_EN |
1058 AR8327_FWD_CTRL0_MIRROR_PORT;
1059 priv->write(priv, AR8327_REG_FWD_CTRL0, t);
1061 /* forward multicast and broadcast frames to CPU */
1062 t = (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_UC_FLOOD_S) |
1063 (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_MC_FLOOD_S) |
1064 (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_BC_FLOOD_S);
1065 priv->write(priv, AR8327_REG_FWD_CTRL1, t);
1068 ar8216_rmw(priv, AR8327_REG_MAX_FRAME_SIZE,
1069 AR8327_MAX_FRAME_SIZE_MTU, 1518 + 8 + 2);
1071 /* Enable MIB counters */
1072 ar8216_reg_set(priv, AR8327_REG_MODULE_EN,
1073 AR8327_MODULE_EN_MIB);
1077 ar8327_config_port(struct ar8216_priv *priv, unsigned int port,
1078 struct ar8327_port_cfg *cfg)
1082 if (!cfg || !cfg->force_link) {
1083 priv->write(priv, AR8327_REG_PORT_STATUS(port),
1084 AR8216_PORT_STATUS_LINK_AUTO);
1088 t = AR8216_PORT_STATUS_TXMAC | AR8216_PORT_STATUS_RXMAC;
1089 t |= cfg->duplex ? AR8216_PORT_STATUS_DUPLEX : 0;
1090 t |= cfg->rxpause ? AR8216_PORT_STATUS_RXFLOW : 0;
1091 t |= cfg->txpause ? AR8216_PORT_STATUS_TXFLOW : 0;
1093 switch (cfg->speed) {
1094 case AR8327_PORT_SPEED_10:
1095 t |= AR8216_PORT_SPEED_10M;
1097 case AR8327_PORT_SPEED_100:
1098 t |= AR8216_PORT_SPEED_100M;
1100 case AR8327_PORT_SPEED_1000:
1101 t |= AR8216_PORT_SPEED_1000M;
1105 priv->write(priv, AR8327_REG_PORT_STATUS(port), t);
1109 ar8327_init_port(struct ar8216_priv *priv, int port)
1111 struct ar8327_platform_data *pdata;
1112 struct ar8327_port_cfg *cfg;
1115 pdata = priv->phy->dev.platform_data;
1117 if (pdata && port == AR8216_PORT_CPU)
1118 cfg = &pdata->port0_cfg;
1119 else if (pdata && port == 6)
1120 cfg = &pdata->port6_cfg;
1124 ar8327_config_port(priv, port, cfg);
1126 priv->write(priv, AR8327_REG_PORT_HEADER(port), 0);
1128 priv->write(priv, AR8327_REG_PORT_VLAN0(port), 0);
1130 t = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH << AR8327_PORT_VLAN1_OUT_MODE_S;
1131 priv->write(priv, AR8327_REG_PORT_VLAN1(port), t);
1133 t = AR8327_PORT_LOOKUP_LEARN;
1134 t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
1135 priv->write(priv, AR8327_REG_PORT_LOOKUP(port), t);
1139 ar8327_read_port_status(struct ar8216_priv *priv, int port)
1141 return priv->read(priv, AR8327_REG_PORT_STATUS(port));
1145 ar8327_atu_flush(struct ar8216_priv *priv)
1149 ret = ar8216_wait_bit(priv, AR8327_REG_ATU_FUNC,
1150 AR8327_ATU_FUNC_BUSY, 0);
1152 priv->write(priv, AR8327_REG_ATU_FUNC,
1153 AR8327_ATU_FUNC_OP_FLUSH);
1159 ar8327_vtu_op(struct ar8216_priv *priv, u32 op, u32 val)
1161 if (ar8216_wait_bit(priv, AR8327_REG_VTU_FUNC1,
1162 AR8327_VTU_FUNC1_BUSY, 0))
1165 if ((op & AR8327_VTU_FUNC1_OP) == AR8327_VTU_FUNC1_OP_LOAD)
1166 priv->write(priv, AR8327_REG_VTU_FUNC0, val);
1168 op |= AR8327_VTU_FUNC1_BUSY;
1169 priv->write(priv, AR8327_REG_VTU_FUNC1, op);
1173 ar8327_vtu_flush(struct ar8216_priv *priv)
1175 ar8327_vtu_op(priv, AR8327_VTU_FUNC1_OP_FLUSH, 0);
1179 ar8327_vtu_load_vlan(struct ar8216_priv *priv, u32 vid, u32 port_mask)
1185 op = AR8327_VTU_FUNC1_OP_LOAD | (vid << AR8327_VTU_FUNC1_VID_S);
1186 val = AR8327_VTU_FUNC0_VALID | AR8327_VTU_FUNC0_IVL;
1187 for (i = 0; i < AR8327_NUM_PORTS; i++) {
1190 if ((port_mask & BIT(i)) == 0)
1191 mode = AR8327_VTU_FUNC0_EG_MODE_NOT;
1192 else if (priv->vlan == 0)
1193 mode = AR8327_VTU_FUNC0_EG_MODE_KEEP;
1194 else if (priv->vlan_tagged & BIT(i))
1195 mode = AR8327_VTU_FUNC0_EG_MODE_TAG;
1197 mode = AR8327_VTU_FUNC0_EG_MODE_UNTAG;
1199 val |= mode << AR8327_VTU_FUNC0_EG_MODE_S(i);
1201 ar8327_vtu_op(priv, op, val);
1205 ar8327_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
1206 u32 members, u32 pvid)
1211 t = pvid << AR8327_PORT_VLAN0_DEF_SVID_S;
1212 t |= pvid << AR8327_PORT_VLAN0_DEF_CVID_S;
1213 priv->write(priv, AR8327_REG_PORT_VLAN0(port), t);
1215 mode = AR8327_PORT_VLAN1_OUT_MODE_UNMOD;
1217 case AR8216_OUT_KEEP:
1218 mode = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH;
1220 case AR8216_OUT_STRIP_VLAN:
1221 mode = AR8327_PORT_VLAN1_OUT_MODE_UNTAG;
1223 case AR8216_OUT_ADD_VLAN:
1224 mode = AR8327_PORT_VLAN1_OUT_MODE_TAG;
1228 t = AR8327_PORT_VLAN1_PORT_VLAN_PROP;
1229 t |= mode << AR8327_PORT_VLAN1_OUT_MODE_S;
1230 priv->write(priv, AR8327_REG_PORT_VLAN1(port), t);
1233 t |= AR8327_PORT_LOOKUP_LEARN;
1234 t |= ingress << AR8327_PORT_LOOKUP_IN_MODE_S;
1235 t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
1236 priv->write(priv, AR8327_REG_PORT_LOOKUP(port), t);
1239 static const struct ar8xxx_chip ar8327_chip = {
1240 .caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
1241 .hw_init = ar8327_hw_init,
1242 .init_globals = ar8327_init_globals,
1243 .init_port = ar8327_init_port,
1244 .setup_port = ar8327_setup_port,
1245 .read_port_status = ar8327_read_port_status,
1246 .atu_flush = ar8327_atu_flush,
1247 .vtu_flush = ar8327_vtu_flush,
1248 .vtu_load_vlan = ar8327_vtu_load_vlan,
1250 .num_mibs = ARRAY_SIZE(ar8236_mibs),
1251 .mib_decs = ar8236_mibs,
1255 ar8216_sw_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
1256 struct switch_val *val)
1258 struct ar8216_priv *priv = to_ar8216(dev);
1259 priv->vlan = !!val->value.i;
1264 ar8216_sw_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
1265 struct switch_val *val)
1267 struct ar8216_priv *priv = to_ar8216(dev);
1268 val->value.i = priv->vlan;
1274 ar8216_sw_set_pvid(struct switch_dev *dev, int port, int vlan)
1276 struct ar8216_priv *priv = to_ar8216(dev);
1278 /* make sure no invalid PVIDs get set */
1280 if (vlan >= dev->vlans)
1283 priv->pvid[port] = vlan;
1288 ar8216_sw_get_pvid(struct switch_dev *dev, int port, int *vlan)
1290 struct ar8216_priv *priv = to_ar8216(dev);
1291 *vlan = priv->pvid[port];
1296 ar8216_sw_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
1297 struct switch_val *val)
1299 struct ar8216_priv *priv = to_ar8216(dev);
1300 priv->vlan_id[val->port_vlan] = val->value.i;
1305 ar8216_sw_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
1306 struct switch_val *val)
1308 struct ar8216_priv *priv = to_ar8216(dev);
1309 val->value.i = priv->vlan_id[val->port_vlan];
1314 ar8216_sw_get_port_link(struct switch_dev *dev, int port,
1315 struct switch_port_link *link)
1317 struct ar8216_priv *priv = to_ar8216(dev);
1319 ar8216_read_port_link(priv, port, link);
1324 ar8216_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
1326 struct ar8216_priv *priv = to_ar8216(dev);
1327 u8 ports = priv->vlan_table[val->port_vlan];
1331 for (i = 0; i < dev->ports; i++) {
1332 struct switch_port *p;
1334 if (!(ports & (1 << i)))
1337 p = &val->value.ports[val->len++];
1339 if (priv->vlan_tagged & (1 << i))
1340 p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
1348 ar8216_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
1350 struct ar8216_priv *priv = to_ar8216(dev);
1351 u8 *vt = &priv->vlan_table[val->port_vlan];
1355 for (i = 0; i < val->len; i++) {
1356 struct switch_port *p = &val->value.ports[i];
1358 if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
1359 priv->vlan_tagged |= (1 << p->id);
1361 priv->vlan_tagged &= ~(1 << p->id);
1362 priv->pvid[p->id] = val->port_vlan;
1364 /* make sure that an untagged port does not
1365 * appear in other vlans */
1366 for (j = 0; j < AR8X16_MAX_VLANS; j++) {
1367 if (j == val->port_vlan)
1369 priv->vlan_table[j] &= ~(1 << p->id);
1379 ar8216_sw_hw_apply(struct switch_dev *dev)
1381 struct ar8216_priv *priv = to_ar8216(dev);
1382 u8 portmask[AR8X16_MAX_PORTS];
1385 mutex_lock(&priv->reg_mutex);
1386 /* flush all vlan translation unit entries */
1387 priv->chip->vtu_flush(priv);
1389 memset(portmask, 0, sizeof(portmask));
1391 /* calculate the port destination masks and load vlans
1392 * into the vlan translation unit */
1393 for (j = 0; j < AR8X16_MAX_VLANS; j++) {
1394 u8 vp = priv->vlan_table[j];
1399 for (i = 0; i < dev->ports; i++) {
1402 portmask[i] |= vp & ~mask;
1405 priv->chip->vtu_load_vlan(priv, priv->vlan_id[j],
1406 priv->vlan_table[j]);
1410 * isolate all ports, but connect them to the cpu port */
1411 for (i = 0; i < dev->ports; i++) {
1412 if (i == AR8216_PORT_CPU)
1415 portmask[i] = 1 << AR8216_PORT_CPU;
1416 portmask[AR8216_PORT_CPU] |= (1 << i);
1420 /* update the port destination mask registers and tag settings */
1421 for (i = 0; i < dev->ports; i++) {
1422 int egress, ingress;
1426 pvid = priv->vlan_id[priv->pvid[i]];
1427 if (priv->vlan_tagged & (1 << i))
1428 egress = AR8216_OUT_ADD_VLAN;
1430 egress = AR8216_OUT_STRIP_VLAN;
1431 ingress = AR8216_IN_SECURE;
1434 egress = AR8216_OUT_KEEP;
1435 ingress = AR8216_IN_PORT_ONLY;
1438 priv->chip->setup_port(priv, i, egress, ingress, portmask[i],
1441 mutex_unlock(&priv->reg_mutex);
1446 ar8216_sw_reset_switch(struct switch_dev *dev)
1448 struct ar8216_priv *priv = to_ar8216(dev);
1451 mutex_lock(&priv->reg_mutex);
1452 memset(&priv->vlan, 0, sizeof(struct ar8216_priv) -
1453 offsetof(struct ar8216_priv, vlan));
1455 for (i = 0; i < AR8X16_MAX_VLANS; i++)
1456 priv->vlan_id[i] = i;
1458 /* Configure all ports */
1459 for (i = 0; i < dev->ports; i++)
1460 priv->chip->init_port(priv, i);
1462 priv->chip->init_globals(priv);
1463 mutex_unlock(&priv->reg_mutex);
1465 return ar8216_sw_hw_apply(dev);
1469 ar8216_sw_set_reset_mibs(struct switch_dev *dev,
1470 const struct switch_attr *attr,
1471 struct switch_val *val)
1473 struct ar8216_priv *priv = to_ar8216(dev);
1477 if (!ar8xxx_has_mib_counters(priv))
1480 mutex_lock(&priv->mib_lock);
1482 len = priv->dev.ports * priv->chip->num_mibs *
1483 sizeof(*priv->mib_stats);
1484 memset(priv->mib_stats, '\0', len);
1485 ret = ar8216_mib_flush(priv);
1492 mutex_unlock(&priv->mib_lock);
1497 ar8216_sw_set_port_reset_mib(struct switch_dev *dev,
1498 const struct switch_attr *attr,
1499 struct switch_val *val)
1501 struct ar8216_priv *priv = to_ar8216(dev);
1505 if (!ar8xxx_has_mib_counters(priv))
1508 port = val->port_vlan;
1509 if (port >= dev->ports)
1512 mutex_lock(&priv->mib_lock);
1513 ret = ar8216_mib_capture(priv);
1517 ar8216_mib_fetch_port_stat(priv, port, true);
1522 mutex_unlock(&priv->mib_lock);
1527 ar8216_sw_get_port_mib(struct switch_dev *dev,
1528 const struct switch_attr *attr,
1529 struct switch_val *val)
1531 struct ar8216_priv *priv = to_ar8216(dev);
1532 const struct ar8xxx_chip *chip = priv->chip;
1536 char *buf = priv->buf;
1539 if (!ar8xxx_has_mib_counters(priv))
1542 port = val->port_vlan;
1543 if (port >= dev->ports)
1546 mutex_lock(&priv->mib_lock);
1547 ret = ar8216_mib_capture(priv);
1551 ar8216_mib_fetch_port_stat(priv, port, false);
1553 len += snprintf(buf + len, sizeof(priv->buf) - len,
1554 "Port %d MIB counters\n",
1557 mib_stats = &priv->mib_stats[port * chip->num_mibs];
1558 for (i = 0; i < chip->num_mibs; i++)
1559 len += snprintf(buf + len, sizeof(priv->buf) - len,
1561 chip->mib_decs[i].name,
1570 mutex_unlock(&priv->mib_lock);
1574 static struct switch_attr ar8216_globals[] = {
1576 .type = SWITCH_TYPE_INT,
1577 .name = "enable_vlan",
1578 .description = "Enable VLAN mode",
1579 .set = ar8216_sw_set_vlan,
1580 .get = ar8216_sw_get_vlan,
1584 .type = SWITCH_TYPE_NOVAL,
1585 .name = "reset_mibs",
1586 .description = "Reset all MIB counters",
1587 .set = ar8216_sw_set_reset_mibs,
1592 static struct switch_attr ar8216_port[] = {
1594 .type = SWITCH_TYPE_NOVAL,
1595 .name = "reset_mib",
1596 .description = "Reset single port MIB counters",
1597 .set = ar8216_sw_set_port_reset_mib,
1600 .type = SWITCH_TYPE_STRING,
1602 .description = "Get port's MIB counters",
1604 .get = ar8216_sw_get_port_mib,
1608 static struct switch_attr ar8216_vlan[] = {
1610 .type = SWITCH_TYPE_INT,
1612 .description = "VLAN ID (0-4094)",
1613 .set = ar8216_sw_set_vid,
1614 .get = ar8216_sw_get_vid,
1619 static const struct switch_dev_ops ar8216_sw_ops = {
1621 .attr = ar8216_globals,
1622 .n_attr = ARRAY_SIZE(ar8216_globals),
1625 .attr = ar8216_port,
1626 .n_attr = ARRAY_SIZE(ar8216_port),
1629 .attr = ar8216_vlan,
1630 .n_attr = ARRAY_SIZE(ar8216_vlan),
1632 .get_port_pvid = ar8216_sw_get_pvid,
1633 .set_port_pvid = ar8216_sw_set_pvid,
1634 .get_vlan_ports = ar8216_sw_get_ports,
1635 .set_vlan_ports = ar8216_sw_set_ports,
1636 .apply_config = ar8216_sw_hw_apply,
1637 .reset_switch = ar8216_sw_reset_switch,
1638 .get_port_link = ar8216_sw_get_port_link,
1642 ar8216_id_chip(struct ar8216_priv *priv)
1648 val = ar8216_mii_read(priv, AR8216_REG_CTRL);
1652 id = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
1653 for (i = 0; i < AR8X16_PROBE_RETRIES; i++) {
1656 val = ar8216_mii_read(priv, AR8216_REG_CTRL);
1660 t = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
1665 priv->chip_ver = (id & AR8216_CTRL_VERSION) >> AR8216_CTRL_VERSION_S;
1666 priv->chip_rev = (id & AR8216_CTRL_REVISION);
1668 switch (priv->chip_ver) {
1669 case AR8XXX_VER_AR8216:
1670 priv->chip = &ar8216_chip;
1672 case AR8XXX_VER_AR8236:
1673 priv->chip = &ar8236_chip;
1675 case AR8XXX_VER_AR8316:
1676 priv->chip = &ar8316_chip;
1678 case AR8XXX_VER_AR8327:
1679 priv->mii_lo_first = true;
1680 priv->chip = &ar8327_chip;
1684 "ar8216: Unknown Atheros device [ver=%d, rev=%d, phy_id=%04x%04x]\n",
1685 priv->chip_ver, priv->chip_rev,
1686 mdiobus_read(priv->phy->bus, priv->phy->addr, 2),
1687 mdiobus_read(priv->phy->bus, priv->phy->addr, 3));
1696 ar8xxx_mib_work_func(struct work_struct *work)
1698 struct ar8216_priv *priv;
1701 priv = container_of(work, struct ar8216_priv, mib_work.work);
1703 mutex_lock(&priv->mib_lock);
1705 err = ar8216_mib_capture(priv);
1709 ar8216_mib_fetch_port_stat(priv, priv->mib_next_port, false);
1712 priv->mib_next_port++;
1713 if (priv->mib_next_port >= priv->dev.ports)
1714 priv->mib_next_port = 0;
1716 mutex_unlock(&priv->mib_lock);
1717 schedule_delayed_work(&priv->mib_work,
1718 msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY));
1722 ar8xxx_mib_init(struct ar8216_priv *priv)
1726 if (!ar8xxx_has_mib_counters(priv))
1729 BUG_ON(!priv->chip->mib_decs || !priv->chip->num_mibs);
1731 len = priv->dev.ports * priv->chip->num_mibs *
1732 sizeof(*priv->mib_stats);
1733 priv->mib_stats = kzalloc(len, GFP_KERNEL);
1735 if (!priv->mib_stats)
1738 mutex_init(&priv->mib_lock);
1739 INIT_DELAYED_WORK(&priv->mib_work, ar8xxx_mib_work_func);
1745 ar8xxx_mib_start(struct ar8216_priv *priv)
1747 if (!ar8xxx_has_mib_counters(priv))
1750 schedule_delayed_work(&priv->mib_work,
1751 msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY));
1755 ar8xxx_mib_cleanup(struct ar8216_priv *priv)
1757 if (!ar8xxx_has_mib_counters(priv))
1760 cancel_delayed_work(&priv->mib_work);
1761 kfree(priv->mib_stats);
1765 ar8216_config_init(struct phy_device *pdev)
1767 struct ar8216_priv *priv = pdev->priv;
1768 struct net_device *dev = pdev->attached_dev;
1769 struct switch_dev *swdev;
1773 priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL);
1780 ret = ar8216_id_chip(priv);
1784 if (pdev->addr != 0) {
1785 if (ar8xxx_has_gige(priv)) {
1786 pdev->supported |= SUPPORTED_1000baseT_Full;
1787 pdev->advertising |= ADVERTISED_1000baseT_Full;
1790 if (chip_is_ar8316(priv)) {
1791 /* check if we're attaching to the switch twice */
1792 pdev = pdev->bus->phy_map[0];
1798 /* switch device has not been initialized, reuse priv */
1800 priv->port4_phy = true;
1807 /* switch device has been initialized, reinit */
1809 priv->dev.ports = (AR8216_NUM_PORTS - 1);
1810 priv->initialized = false;
1811 priv->port4_phy = true;
1812 ar8316_hw_init(priv);
1820 if (ar8xxx_has_gige(priv))
1821 pdev->supported = SUPPORTED_1000baseT_Full;
1823 pdev->supported = SUPPORTED_100baseT_Full;
1824 pdev->advertising = pdev->supported;
1826 mutex_init(&priv->reg_mutex);
1827 priv->read = ar8216_mii_read;
1828 priv->write = ar8216_mii_write;
1833 swdev->cpu_port = AR8216_PORT_CPU;
1834 swdev->ops = &ar8216_sw_ops;
1835 swdev->ports = AR8216_NUM_PORTS;
1837 if (chip_is_ar8316(priv)) {
1838 swdev->name = "Atheros AR8316";
1839 swdev->vlans = AR8X16_MAX_VLANS;
1841 if (priv->port4_phy) {
1842 /* port 5 connected to the other mac, therefore unusable */
1843 swdev->ports = (AR8216_NUM_PORTS - 1);
1845 } else if (chip_is_ar8236(priv)) {
1846 swdev->name = "Atheros AR8236";
1847 swdev->vlans = AR8216_NUM_VLANS;
1848 swdev->ports = AR8216_NUM_PORTS;
1849 } else if (chip_is_ar8327(priv)) {
1850 swdev->name = "Atheros AR8327";
1851 swdev->vlans = AR8X16_MAX_VLANS;
1852 swdev->ports = AR8327_NUM_PORTS;
1854 swdev->name = "Atheros AR8216";
1855 swdev->vlans = AR8216_NUM_VLANS;
1858 ret = ar8xxx_mib_init(priv);
1862 ret = register_switch(&priv->dev, pdev->attached_dev);
1864 goto err_cleanup_mib;
1866 printk(KERN_INFO "%s: %s switch driver attached.\n",
1867 pdev->attached_dev->name, swdev->name);
1871 ret = priv->chip->hw_init(priv);
1873 goto err_cleanup_mib;
1875 ret = ar8216_sw_reset_switch(&priv->dev);
1877 goto err_cleanup_mib;
1879 dev->phy_ptr = priv;
1881 /* VID fixup only needed on ar8216 */
1882 if (chip_is_ar8216(priv) && pdev->addr == 0) {
1883 dev->priv_flags |= IFF_NO_IP_ALIGN;
1884 dev->eth_mangle_rx = ar8216_mangle_rx;
1885 dev->eth_mangle_tx = ar8216_mangle_tx;
1890 ar8xxx_mib_start(priv);
1895 ar8xxx_mib_cleanup(priv);
1902 ar8216_read_status(struct phy_device *phydev)
1904 struct ar8216_priv *priv = phydev->priv;
1905 struct switch_port_link link;
1908 if (phydev->addr != 0)
1909 return genphy_read_status(phydev);
1911 ar8216_read_port_link(priv, phydev->addr, &link);
1912 phydev->link = !!link.link;
1916 switch (link.speed) {
1917 case SWITCH_PORT_SPEED_10:
1918 phydev->speed = SPEED_10;
1920 case SWITCH_PORT_SPEED_100:
1921 phydev->speed = SPEED_100;
1923 case SWITCH_PORT_SPEED_1000:
1924 phydev->speed = SPEED_1000;
1929 phydev->duplex = link.duplex ? DUPLEX_FULL : DUPLEX_HALF;
1931 /* flush the address translation unit */
1932 mutex_lock(&priv->reg_mutex);
1933 ret = priv->chip->atu_flush(priv);
1934 mutex_unlock(&priv->reg_mutex);
1936 phydev->state = PHY_RUNNING;
1937 netif_carrier_on(phydev->attached_dev);
1938 phydev->adjust_link(phydev->attached_dev);
1944 ar8216_config_aneg(struct phy_device *phydev)
1946 if (phydev->addr == 0)
1949 return genphy_config_aneg(phydev);
1953 ar8216_probe(struct phy_device *pdev)
1955 struct ar8216_priv *priv;
1958 priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL);
1964 ret = ar8216_id_chip(priv);
1971 ar8216_remove(struct phy_device *pdev)
1973 struct ar8216_priv *priv = pdev->priv;
1974 struct net_device *dev = pdev->attached_dev;
1979 dev->priv_flags &= ~IFF_NO_IP_ALIGN;
1980 dev->eth_mangle_rx = NULL;
1981 dev->eth_mangle_tx = NULL;
1983 if (pdev->addr == 0)
1984 unregister_switch(&priv->dev);
1986 ar8xxx_mib_cleanup(priv);
1990 static struct phy_driver ar8216_driver = {
1991 .phy_id = 0x004d0000,
1992 .name = "Atheros AR8216/AR8236/AR8316",
1993 .phy_id_mask = 0xffff0000,
1994 .features = PHY_BASIC_FEATURES,
1995 .probe = ar8216_probe,
1996 .remove = ar8216_remove,
1997 .config_init = &ar8216_config_init,
1998 .config_aneg = &ar8216_config_aneg,
1999 .read_status = &ar8216_read_status,
2000 .driver = { .owner = THIS_MODULE },
2006 return phy_driver_register(&ar8216_driver);
2012 phy_driver_unregister(&ar8216_driver);
2015 module_init(ar8216_init);
2016 module_exit(ar8216_exit);
2017 MODULE_LICENSE("GPL");