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_capture(struct ar8216_priv *priv)
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,
379 (AR8216_MIB_FUNC_CAPTURE << AR8216_MIB_FUNC_S));
380 mutex_unlock(&priv->reg_mutex);
382 /* Wait for the capturing to complete. */
383 ret = ar8216_reg_wait(priv, mib_func, AR8216_MIB_BUSY, 0, 10);
394 ar8216_mib_flush(struct ar8216_priv *priv)
399 lockdep_assert_held(&priv->mib_lock);
401 if (chip_is_ar8327(priv))
402 mib_func = AR8327_REG_MIB_FUNC;
404 mib_func = AR8216_REG_MIB_FUNC;
406 /* Flush hardware statistics for all ports */
407 ar8216_rmw(priv, mib_func, AR8216_MIB_FUNC,
408 (AR8216_MIB_FUNC_FLUSH << AR8216_MIB_FUNC_S));
410 /* Wait for the capturing to complete. */
411 ret = ar8216_reg_wait(priv, mib_func, AR8216_MIB_BUSY, 0, 10);
422 ar8216_mib_fetch_port_stat(struct ar8216_priv *priv, int port, bool flush)
428 WARN_ON(port >= priv->dev.ports);
430 lockdep_assert_held(&priv->mib_lock);
432 if (chip_is_ar8327(priv))
433 base = AR8327_REG_PORT_STATS_BASE(port);
434 else if (chip_is_ar8236(priv) ||
435 chip_is_ar8316(priv))
436 base = AR8236_REG_PORT_STATS_BASE(port);
438 base = AR8216_REG_PORT_STATS_BASE(port);
440 mib_stats = &priv->mib_stats[port * priv->chip->num_mibs];
441 for (i = 0; i < priv->chip->num_mibs; i++) {
442 const struct ar8xxx_mib_desc *mib;
445 mib = &priv->chip->mib_decs[i];
446 t = priv->read(priv, base + mib->offset);
447 if (mib->size == 2) {
450 hi = priv->read(priv, base + mib->offset + 4);
462 ar8216_read_port_link(struct ar8216_priv *priv, int port,
463 struct switch_port_link *link)
468 memset(link, '\0', sizeof(*link));
470 status = priv->chip->read_port_status(priv, port);
472 link->aneg = !!(status & AR8216_PORT_STATUS_LINK_AUTO);
474 link->link = !!(status & AR8216_PORT_STATUS_LINK_UP);
481 link->duplex = !!(status & AR8216_PORT_STATUS_DUPLEX);
482 link->tx_flow = !!(status & AR8216_PORT_STATUS_TXFLOW);
483 link->rx_flow = !!(status & AR8216_PORT_STATUS_RXFLOW);
485 speed = (status & AR8216_PORT_STATUS_SPEED) >>
486 AR8216_PORT_STATUS_SPEED_S;
489 case AR8216_PORT_SPEED_10M:
490 link->speed = SWITCH_PORT_SPEED_10;
492 case AR8216_PORT_SPEED_100M:
493 link->speed = SWITCH_PORT_SPEED_100;
495 case AR8216_PORT_SPEED_1000M:
496 link->speed = SWITCH_PORT_SPEED_1000;
499 link->speed = SWITCH_PORT_SPEED_UNKNOWN;
504 static struct sk_buff *
505 ar8216_mangle_tx(struct net_device *dev, struct sk_buff *skb)
507 struct ar8216_priv *priv = dev->phy_ptr;
516 if (unlikely(skb_headroom(skb) < 2)) {
517 if (pskb_expand_head(skb, 2, 0, GFP_ATOMIC) < 0)
521 buf = skb_push(skb, 2);
529 dev_kfree_skb_any(skb);
534 ar8216_mangle_rx(struct net_device *dev, struct sk_buff *skb)
536 struct ar8216_priv *priv;
544 /* don't strip the header if vlan mode is disabled */
548 /* strip header, get vlan id */
552 /* check for vlan header presence */
553 if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00))
558 /* no need to fix up packets coming from a tagged source */
559 if (priv->vlan_tagged & (1 << port))
562 /* lookup port vid from local table, the switch passes an invalid vlan id */
563 vlan = priv->vlan_id[priv->pvid[port]];
566 buf[14 + 2] |= vlan >> 8;
567 buf[15 + 2] = vlan & 0xff;
571 ar8216_wait_bit(struct ar8216_priv *priv, int reg, u32 mask, u32 val)
577 t = priv->read(priv, reg);
578 if ((t & mask) == val)
587 pr_err("ar8216: timeout on reg %08x: %08x & %08x != %08x\n",
588 (unsigned int) reg, t, mask, val);
593 ar8216_vtu_op(struct ar8216_priv *priv, u32 op, u32 val)
595 if (ar8216_wait_bit(priv, AR8216_REG_VTU, AR8216_VTU_ACTIVE, 0))
597 if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) {
598 val &= AR8216_VTUDATA_MEMBER;
599 val |= AR8216_VTUDATA_VALID;
600 priv->write(priv, AR8216_REG_VTU_DATA, val);
602 op |= AR8216_VTU_ACTIVE;
603 priv->write(priv, AR8216_REG_VTU, op);
607 ar8216_vtu_flush(struct ar8216_priv *priv)
609 ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
613 ar8216_vtu_load_vlan(struct ar8216_priv *priv, u32 vid, u32 port_mask)
617 op = AR8216_VTU_OP_LOAD | (vid << AR8216_VTU_VID_S);
618 ar8216_vtu_op(priv, op, port_mask);
622 ar8216_atu_flush(struct ar8216_priv *priv)
626 ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0);
628 priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH);
634 ar8216_read_port_status(struct ar8216_priv *priv, int port)
636 return priv->read(priv, AR8216_REG_PORT_STATUS(port));
640 ar8216_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
641 u32 members, u32 pvid)
645 if (chip_is_ar8216(priv) && priv->vlan && port == AR8216_PORT_CPU)
646 header = AR8216_PORT_CTRL_HEADER;
650 ar8216_rmw(priv, AR8216_REG_PORT_CTRL(port),
651 AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
652 AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
653 AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
654 AR8216_PORT_CTRL_LEARN | header |
655 (egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
656 (AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
658 ar8216_rmw(priv, AR8216_REG_PORT_VLAN(port),
659 AR8216_PORT_VLAN_DEST_PORTS | AR8216_PORT_VLAN_MODE |
660 AR8216_PORT_VLAN_DEFAULT_ID,
661 (members << AR8216_PORT_VLAN_DEST_PORTS_S) |
662 (ingress << AR8216_PORT_VLAN_MODE_S) |
663 (pvid << AR8216_PORT_VLAN_DEFAULT_ID_S));
667 ar8216_hw_init(struct ar8216_priv *priv)
673 ar8216_init_globals(struct ar8216_priv *priv)
675 /* standard atheros magic */
676 priv->write(priv, 0x38, 0xc000050e);
678 ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
679 AR8216_GCTRL_MTU, 1518 + 8 + 2);
683 ar8216_init_port(struct ar8216_priv *priv, int port)
685 /* Enable port learning and tx */
686 priv->write(priv, AR8216_REG_PORT_CTRL(port),
687 AR8216_PORT_CTRL_LEARN |
688 (4 << AR8216_PORT_CTRL_STATE_S));
690 priv->write(priv, AR8216_REG_PORT_VLAN(port), 0);
692 if (port == AR8216_PORT_CPU) {
693 priv->write(priv, AR8216_REG_PORT_STATUS(port),
694 AR8216_PORT_STATUS_LINK_UP |
695 (ar8xxx_has_gige(priv) ?
696 AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) |
697 AR8216_PORT_STATUS_TXMAC |
698 AR8216_PORT_STATUS_RXMAC |
699 (chip_is_ar8316(priv) ? AR8216_PORT_STATUS_RXFLOW : 0) |
700 (chip_is_ar8316(priv) ? AR8216_PORT_STATUS_TXFLOW : 0) |
701 AR8216_PORT_STATUS_DUPLEX);
703 priv->write(priv, AR8216_REG_PORT_STATUS(port),
704 AR8216_PORT_STATUS_LINK_AUTO);
708 static const struct ar8xxx_chip ar8216_chip = {
709 .caps = AR8XXX_CAP_MIB_COUNTERS,
711 .hw_init = ar8216_hw_init,
712 .init_globals = ar8216_init_globals,
713 .init_port = ar8216_init_port,
714 .setup_port = ar8216_setup_port,
715 .read_port_status = ar8216_read_port_status,
716 .atu_flush = ar8216_atu_flush,
717 .vtu_flush = ar8216_vtu_flush,
718 .vtu_load_vlan = ar8216_vtu_load_vlan,
720 .num_mibs = ARRAY_SIZE(ar8216_mibs),
721 .mib_decs = ar8216_mibs,
725 ar8236_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
726 u32 members, u32 pvid)
728 ar8216_rmw(priv, AR8216_REG_PORT_CTRL(port),
729 AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
730 AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
731 AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
732 AR8216_PORT_CTRL_LEARN |
733 (egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
734 (AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
736 ar8216_rmw(priv, AR8236_REG_PORT_VLAN(port),
737 AR8236_PORT_VLAN_DEFAULT_ID,
738 (pvid << AR8236_PORT_VLAN_DEFAULT_ID_S));
740 ar8216_rmw(priv, AR8236_REG_PORT_VLAN2(port),
741 AR8236_PORT_VLAN2_VLAN_MODE |
742 AR8236_PORT_VLAN2_MEMBER,
743 (ingress << AR8236_PORT_VLAN2_VLAN_MODE_S) |
744 (members << AR8236_PORT_VLAN2_MEMBER_S));
748 ar8236_hw_init(struct ar8216_priv *priv)
753 if (priv->initialized)
756 /* Initialize the PHYs */
757 bus = priv->phy->bus;
758 for (i = 0; i < 5; i++) {
759 mdiobus_write(bus, i, MII_ADVERTISE,
760 ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
761 ADVERTISE_PAUSE_ASYM);
762 mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
766 priv->initialized = true;
771 ar8236_init_globals(struct ar8216_priv *priv)
773 /* enable jumbo frames */
774 ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
775 AR8316_GCTRL_MTU, 9018 + 8 + 2);
777 /* Enable MIB counters */
778 ar8216_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN,
779 (AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) |
783 static const struct ar8xxx_chip ar8236_chip = {
784 .caps = AR8XXX_CAP_MIB_COUNTERS,
785 .hw_init = ar8236_hw_init,
786 .init_globals = ar8236_init_globals,
787 .init_port = ar8216_init_port,
788 .setup_port = ar8236_setup_port,
789 .read_port_status = ar8216_read_port_status,
790 .atu_flush = ar8216_atu_flush,
791 .vtu_flush = ar8216_vtu_flush,
792 .vtu_load_vlan = ar8216_vtu_load_vlan,
794 .num_mibs = ARRAY_SIZE(ar8236_mibs),
795 .mib_decs = ar8236_mibs,
799 ar8316_hw_init(struct ar8216_priv *priv)
805 val = priv->read(priv, 0x8);
807 if (priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
808 if (priv->port4_phy) {
809 /* value taken from Ubiquiti RouterStation Pro */
811 printk(KERN_INFO "ar8316: Using port 4 as PHY\n");
814 printk(KERN_INFO "ar8316: Using port 4 as switch port\n");
816 } else if (priv->phy->interface == PHY_INTERFACE_MODE_GMII) {
817 /* value taken from AVM Fritz!Box 7390 sources */
820 /* no known value for phy interface */
821 printk(KERN_ERR "ar8316: unsupported mii mode: %d.\n",
822 priv->phy->interface);
829 priv->write(priv, 0x8, newval);
831 /* Initialize the ports */
832 bus = priv->phy->bus;
833 for (i = 0; i < 5; i++) {
834 if ((i == 4) && priv->port4_phy &&
835 priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
836 /* work around for phy4 rgmii mode */
837 ar8216_phy_dbg_write(priv, i, 0x12, 0x480c);
839 ar8216_phy_dbg_write(priv, i, 0x0, 0x824e);
841 ar8216_phy_dbg_write(priv, i, 0x5, 0x3d47);
845 /* initialize the port itself */
846 mdiobus_write(bus, i, MII_ADVERTISE,
847 ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
848 mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
849 mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
854 priv->initialized = true;
859 ar8316_init_globals(struct ar8216_priv *priv)
861 /* standard atheros magic */
862 priv->write(priv, 0x38, 0xc000050e);
864 /* enable cpu port to receive multicast and broadcast frames */
865 priv->write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f);
867 /* enable jumbo frames */
868 ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
869 AR8316_GCTRL_MTU, 9018 + 8 + 2);
871 /* Enable MIB counters */
872 ar8216_rmw(priv, AR8216_REG_MIB_FUNC, AR8216_MIB_FUNC | AR8236_MIB_EN,
873 (AR8216_MIB_FUNC_NO_OP << AR8216_MIB_FUNC_S) |
877 static const struct ar8xxx_chip ar8316_chip = {
878 .caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
879 .hw_init = ar8316_hw_init,
880 .init_globals = ar8316_init_globals,
881 .init_port = ar8216_init_port,
882 .setup_port = ar8216_setup_port,
883 .read_port_status = ar8216_read_port_status,
884 .atu_flush = ar8216_atu_flush,
885 .vtu_flush = ar8216_vtu_flush,
886 .vtu_load_vlan = ar8216_vtu_load_vlan,
888 .num_mibs = ARRAY_SIZE(ar8236_mibs),
889 .mib_decs = ar8236_mibs,
893 ar8327_get_pad_cfg(struct ar8327_pad_cfg *cfg)
905 case AR8327_PAD_MAC2MAC_MII:
906 t = AR8327_PAD_MAC_MII_EN;
908 t |= AR8327_PAD_MAC_MII_RXCLK_SEL;
910 t |= AR8327_PAD_MAC_MII_TXCLK_SEL;
913 case AR8327_PAD_MAC2MAC_GMII:
914 t = AR8327_PAD_MAC_GMII_EN;
916 t |= AR8327_PAD_MAC_GMII_RXCLK_SEL;
918 t |= AR8327_PAD_MAC_GMII_TXCLK_SEL;
921 case AR8327_PAD_MAC_SGMII:
922 t = AR8327_PAD_SGMII_EN;
925 case AR8327_PAD_MAC2PHY_MII:
926 t = AR8327_PAD_PHY_MII_EN;
928 t |= AR8327_PAD_PHY_MII_RXCLK_SEL;
930 t |= AR8327_PAD_PHY_MII_TXCLK_SEL;
933 case AR8327_PAD_MAC2PHY_GMII:
934 t = AR8327_PAD_PHY_GMII_EN;
935 if (cfg->pipe_rxclk_sel)
936 t |= AR8327_PAD_PHY_GMII_PIPE_RXCLK_SEL;
938 t |= AR8327_PAD_PHY_GMII_RXCLK_SEL;
940 t |= AR8327_PAD_PHY_GMII_TXCLK_SEL;
943 case AR8327_PAD_MAC_RGMII:
944 t = AR8327_PAD_RGMII_EN;
945 t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S;
946 t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S;
947 if (cfg->rxclk_delay_en)
948 t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN;
949 if (cfg->txclk_delay_en)
950 t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN;
953 case AR8327_PAD_PHY_GMII:
954 t = AR8327_PAD_PHYX_GMII_EN;
957 case AR8327_PAD_PHY_RGMII:
958 t = AR8327_PAD_PHYX_RGMII_EN;
961 case AR8327_PAD_PHY_MII:
962 t = AR8327_PAD_PHYX_MII_EN;
970 ar8327_phy_fixup(struct ar8216_priv *priv, int phy)
972 switch (priv->chip_rev) {
974 /* For 100M waveform */
975 ar8216_phy_dbg_write(priv, phy, 0, 0x02ea);
976 /* Turn on Gigabit clock */
977 ar8216_phy_dbg_write(priv, phy, 0x3d, 0x68a0);
981 ar8216_phy_mmd_write(priv, phy, 0x7, 0x3c);
982 ar8216_phy_mmd_write(priv, phy, 0x4007, 0x0);
985 ar8216_phy_mmd_write(priv, phy, 0x3, 0x800d);
986 ar8216_phy_mmd_write(priv, phy, 0x4003, 0x803f);
988 ar8216_phy_dbg_write(priv, phy, 0x3d, 0x6860);
989 ar8216_phy_dbg_write(priv, phy, 0x5, 0x2c46);
990 ar8216_phy_dbg_write(priv, phy, 0x3c, 0x6000);
996 ar8327_hw_init(struct ar8216_priv *priv)
998 struct ar8327_platform_data *pdata;
999 struct ar8327_led_cfg *led_cfg;
1000 struct mii_bus *bus;
1005 pdata = priv->phy->dev.platform_data;
1009 t = ar8327_get_pad_cfg(pdata->pad0_cfg);
1010 priv->write(priv, AR8327_REG_PAD0_MODE, t);
1011 t = ar8327_get_pad_cfg(pdata->pad5_cfg);
1012 priv->write(priv, AR8327_REG_PAD5_MODE, t);
1013 t = ar8327_get_pad_cfg(pdata->pad6_cfg);
1014 priv->write(priv, AR8327_REG_PAD6_MODE, t);
1016 pos = priv->read(priv, AR8327_REG_POWER_ON_STRIP);
1019 led_cfg = pdata->led_cfg;
1021 if (led_cfg->open_drain)
1022 new_pos |= AR8327_POWER_ON_STRIP_LED_OPEN_EN;
1024 new_pos &= ~AR8327_POWER_ON_STRIP_LED_OPEN_EN;
1026 priv->write(priv, AR8327_REG_LED_CTRL0, led_cfg->led_ctrl0);
1027 priv->write(priv, AR8327_REG_LED_CTRL1, led_cfg->led_ctrl1);
1028 priv->write(priv, AR8327_REG_LED_CTRL2, led_cfg->led_ctrl2);
1029 priv->write(priv, AR8327_REG_LED_CTRL3, led_cfg->led_ctrl3);
1032 if (new_pos != pos) {
1033 new_pos |= AR8327_POWER_ON_STRIP_POWER_ON_SEL;
1034 priv->write(priv, AR8327_REG_POWER_ON_STRIP, new_pos);
1037 bus = priv->phy->bus;
1038 for (i = 0; i < AR8327_NUM_PHYS; i++) {
1039 ar8327_phy_fixup(priv, i);
1041 /* start aneg on the PHY */
1042 mdiobus_write(bus, i, MII_ADVERTISE, ADVERTISE_ALL |
1043 ADVERTISE_PAUSE_CAP |
1044 ADVERTISE_PAUSE_ASYM);
1045 mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
1046 mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
1055 ar8327_init_globals(struct ar8216_priv *priv)
1059 /* enable CPU port and disable mirror port */
1060 t = AR8327_FWD_CTRL0_CPU_PORT_EN |
1061 AR8327_FWD_CTRL0_MIRROR_PORT;
1062 priv->write(priv, AR8327_REG_FWD_CTRL0, t);
1064 /* forward multicast and broadcast frames to CPU */
1065 t = (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_UC_FLOOD_S) |
1066 (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_MC_FLOOD_S) |
1067 (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_BC_FLOOD_S);
1068 priv->write(priv, AR8327_REG_FWD_CTRL1, t);
1071 ar8216_rmw(priv, AR8327_REG_MAX_FRAME_SIZE,
1072 AR8327_MAX_FRAME_SIZE_MTU, 1518 + 8 + 2);
1074 /* Enable MIB counters */
1075 ar8216_reg_set(priv, AR8327_REG_MODULE_EN,
1076 AR8327_MODULE_EN_MIB);
1080 ar8327_init_cpuport(struct ar8216_priv *priv)
1082 struct ar8327_platform_data *pdata;
1083 struct ar8327_port_cfg *cfg;
1086 pdata = priv->phy->dev.platform_data;
1090 cfg = &pdata->cpuport_cfg;
1091 if (!cfg->force_link) {
1092 priv->write(priv, AR8327_REG_PORT_STATUS(AR8216_PORT_CPU),
1093 AR8216_PORT_STATUS_LINK_AUTO);
1097 t = AR8216_PORT_STATUS_TXMAC | AR8216_PORT_STATUS_RXMAC;
1098 t |= cfg->duplex ? AR8216_PORT_STATUS_DUPLEX : 0;
1099 t |= cfg->rxpause ? AR8216_PORT_STATUS_RXFLOW : 0;
1100 t |= cfg->txpause ? AR8216_PORT_STATUS_TXFLOW : 0;
1101 switch (cfg->speed) {
1102 case AR8327_PORT_SPEED_10:
1103 t |= AR8216_PORT_SPEED_10M;
1105 case AR8327_PORT_SPEED_100:
1106 t |= AR8216_PORT_SPEED_100M;
1108 case AR8327_PORT_SPEED_1000:
1109 t |= AR8216_PORT_SPEED_1000M;
1113 priv->write(priv, AR8327_REG_PORT_STATUS(AR8216_PORT_CPU), t);
1117 ar8327_init_port(struct ar8216_priv *priv, int port)
1121 if (port == AR8216_PORT_CPU) {
1122 ar8327_init_cpuport(priv);
1124 t = AR8216_PORT_STATUS_LINK_AUTO;
1125 priv->write(priv, AR8327_REG_PORT_STATUS(port), t);
1128 priv->write(priv, AR8327_REG_PORT_HEADER(port), 0);
1130 priv->write(priv, AR8327_REG_PORT_VLAN0(port), 0);
1132 t = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH << AR8327_PORT_VLAN1_OUT_MODE_S;
1133 priv->write(priv, AR8327_REG_PORT_VLAN1(port), t);
1135 t = AR8327_PORT_LOOKUP_LEARN;
1136 t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
1137 priv->write(priv, AR8327_REG_PORT_LOOKUP(port), t);
1141 ar8327_read_port_status(struct ar8216_priv *priv, int port)
1143 return priv->read(priv, AR8327_REG_PORT_STATUS(port));
1147 ar8327_atu_flush(struct ar8216_priv *priv)
1151 ret = ar8216_wait_bit(priv, AR8327_REG_ATU_FUNC,
1152 AR8327_ATU_FUNC_BUSY, 0);
1154 priv->write(priv, AR8327_REG_ATU_FUNC,
1155 AR8327_ATU_FUNC_OP_FLUSH);
1161 ar8327_vtu_op(struct ar8216_priv *priv, u32 op, u32 val)
1163 if (ar8216_wait_bit(priv, AR8327_REG_VTU_FUNC1,
1164 AR8327_VTU_FUNC1_BUSY, 0))
1167 if ((op & AR8327_VTU_FUNC1_OP) == AR8327_VTU_FUNC1_OP_LOAD)
1168 priv->write(priv, AR8327_REG_VTU_FUNC0, val);
1170 op |= AR8327_VTU_FUNC1_BUSY;
1171 priv->write(priv, AR8327_REG_VTU_FUNC1, op);
1175 ar8327_vtu_flush(struct ar8216_priv *priv)
1177 ar8327_vtu_op(priv, AR8327_VTU_FUNC1_OP_FLUSH, 0);
1181 ar8327_vtu_load_vlan(struct ar8216_priv *priv, u32 vid, u32 port_mask)
1187 op = AR8327_VTU_FUNC1_OP_LOAD | (vid << AR8327_VTU_FUNC1_VID_S);
1188 val = AR8327_VTU_FUNC0_VALID | AR8327_VTU_FUNC0_IVL;
1189 for (i = 0; i < AR8327_NUM_PORTS; i++) {
1192 if ((port_mask & BIT(i)) == 0)
1193 mode = AR8327_VTU_FUNC0_EG_MODE_NOT;
1194 else if (priv->vlan == 0)
1195 mode = AR8327_VTU_FUNC0_EG_MODE_KEEP;
1196 else if (priv->vlan_tagged & BIT(i))
1197 mode = AR8327_VTU_FUNC0_EG_MODE_TAG;
1199 mode = AR8327_VTU_FUNC0_EG_MODE_UNTAG;
1201 val |= mode << AR8327_VTU_FUNC0_EG_MODE_S(i);
1203 ar8327_vtu_op(priv, op, val);
1207 ar8327_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
1208 u32 members, u32 pvid)
1213 t = pvid << AR8327_PORT_VLAN0_DEF_SVID_S;
1214 t |= pvid << AR8327_PORT_VLAN0_DEF_CVID_S;
1215 priv->write(priv, AR8327_REG_PORT_VLAN0(port), t);
1217 mode = AR8327_PORT_VLAN1_OUT_MODE_UNMOD;
1219 case AR8216_OUT_KEEP:
1220 mode = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH;
1222 case AR8216_OUT_STRIP_VLAN:
1223 mode = AR8327_PORT_VLAN1_OUT_MODE_UNTAG;
1225 case AR8216_OUT_ADD_VLAN:
1226 mode = AR8327_PORT_VLAN1_OUT_MODE_TAG;
1230 t = AR8327_PORT_VLAN1_PORT_VLAN_PROP;
1231 t |= mode << AR8327_PORT_VLAN1_OUT_MODE_S;
1232 priv->write(priv, AR8327_REG_PORT_VLAN1(port), t);
1235 t |= AR8327_PORT_LOOKUP_LEARN;
1236 t |= ingress << AR8327_PORT_LOOKUP_IN_MODE_S;
1237 t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
1238 priv->write(priv, AR8327_REG_PORT_LOOKUP(port), t);
1241 static const struct ar8xxx_chip ar8327_chip = {
1242 .caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
1243 .hw_init = ar8327_hw_init,
1244 .init_globals = ar8327_init_globals,
1245 .init_port = ar8327_init_port,
1246 .setup_port = ar8327_setup_port,
1247 .read_port_status = ar8327_read_port_status,
1248 .atu_flush = ar8327_atu_flush,
1249 .vtu_flush = ar8327_vtu_flush,
1250 .vtu_load_vlan = ar8327_vtu_load_vlan,
1252 .num_mibs = ARRAY_SIZE(ar8236_mibs),
1253 .mib_decs = ar8236_mibs,
1257 ar8216_sw_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
1258 struct switch_val *val)
1260 struct ar8216_priv *priv = to_ar8216(dev);
1261 priv->vlan = !!val->value.i;
1266 ar8216_sw_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
1267 struct switch_val *val)
1269 struct ar8216_priv *priv = to_ar8216(dev);
1270 val->value.i = priv->vlan;
1276 ar8216_sw_set_pvid(struct switch_dev *dev, int port, int vlan)
1278 struct ar8216_priv *priv = to_ar8216(dev);
1280 /* make sure no invalid PVIDs get set */
1282 if (vlan >= dev->vlans)
1285 priv->pvid[port] = vlan;
1290 ar8216_sw_get_pvid(struct switch_dev *dev, int port, int *vlan)
1292 struct ar8216_priv *priv = to_ar8216(dev);
1293 *vlan = priv->pvid[port];
1298 ar8216_sw_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
1299 struct switch_val *val)
1301 struct ar8216_priv *priv = to_ar8216(dev);
1302 priv->vlan_id[val->port_vlan] = val->value.i;
1307 ar8216_sw_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
1308 struct switch_val *val)
1310 struct ar8216_priv *priv = to_ar8216(dev);
1311 val->value.i = priv->vlan_id[val->port_vlan];
1316 ar8216_sw_get_port_link(struct switch_dev *dev, int port,
1317 struct switch_port_link *link)
1319 struct ar8216_priv *priv = to_ar8216(dev);
1321 ar8216_read_port_link(priv, port, link);
1326 ar8216_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
1328 struct ar8216_priv *priv = to_ar8216(dev);
1329 u8 ports = priv->vlan_table[val->port_vlan];
1333 for (i = 0; i < dev->ports; i++) {
1334 struct switch_port *p;
1336 if (!(ports & (1 << i)))
1339 p = &val->value.ports[val->len++];
1341 if (priv->vlan_tagged & (1 << i))
1342 p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
1350 ar8216_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
1352 struct ar8216_priv *priv = to_ar8216(dev);
1353 u8 *vt = &priv->vlan_table[val->port_vlan];
1357 for (i = 0; i < val->len; i++) {
1358 struct switch_port *p = &val->value.ports[i];
1360 if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
1361 priv->vlan_tagged |= (1 << p->id);
1363 priv->vlan_tagged &= ~(1 << p->id);
1364 priv->pvid[p->id] = val->port_vlan;
1366 /* make sure that an untagged port does not
1367 * appear in other vlans */
1368 for (j = 0; j < AR8X16_MAX_VLANS; j++) {
1369 if (j == val->port_vlan)
1371 priv->vlan_table[j] &= ~(1 << p->id);
1381 ar8216_sw_hw_apply(struct switch_dev *dev)
1383 struct ar8216_priv *priv = to_ar8216(dev);
1384 u8 portmask[AR8X16_MAX_PORTS];
1387 mutex_lock(&priv->reg_mutex);
1388 /* flush all vlan translation unit entries */
1389 priv->chip->vtu_flush(priv);
1391 memset(portmask, 0, sizeof(portmask));
1393 /* calculate the port destination masks and load vlans
1394 * into the vlan translation unit */
1395 for (j = 0; j < AR8X16_MAX_VLANS; j++) {
1396 u8 vp = priv->vlan_table[j];
1401 for (i = 0; i < dev->ports; i++) {
1404 portmask[i] |= vp & ~mask;
1407 priv->chip->vtu_load_vlan(priv, priv->vlan_id[j],
1408 priv->vlan_table[j]);
1412 * isolate all ports, but connect them to the cpu port */
1413 for (i = 0; i < dev->ports; i++) {
1414 if (i == AR8216_PORT_CPU)
1417 portmask[i] = 1 << AR8216_PORT_CPU;
1418 portmask[AR8216_PORT_CPU] |= (1 << i);
1422 /* update the port destination mask registers and tag settings */
1423 for (i = 0; i < dev->ports; i++) {
1424 int egress, ingress;
1428 pvid = priv->vlan_id[priv->pvid[i]];
1429 if (priv->vlan_tagged & (1 << i))
1430 egress = AR8216_OUT_ADD_VLAN;
1432 egress = AR8216_OUT_STRIP_VLAN;
1433 ingress = AR8216_IN_SECURE;
1436 egress = AR8216_OUT_KEEP;
1437 ingress = AR8216_IN_PORT_ONLY;
1440 priv->chip->setup_port(priv, i, egress, ingress, portmask[i],
1443 mutex_unlock(&priv->reg_mutex);
1448 ar8216_sw_reset_switch(struct switch_dev *dev)
1450 struct ar8216_priv *priv = to_ar8216(dev);
1453 mutex_lock(&priv->reg_mutex);
1454 memset(&priv->vlan, 0, sizeof(struct ar8216_priv) -
1455 offsetof(struct ar8216_priv, vlan));
1457 for (i = 0; i < AR8X16_MAX_VLANS; i++)
1458 priv->vlan_id[i] = i;
1460 /* Configure all ports */
1461 for (i = 0; i < dev->ports; i++)
1462 priv->chip->init_port(priv, i);
1464 priv->chip->init_globals(priv);
1465 mutex_unlock(&priv->reg_mutex);
1467 return ar8216_sw_hw_apply(dev);
1471 ar8216_sw_set_reset_mibs(struct switch_dev *dev,
1472 const struct switch_attr *attr,
1473 struct switch_val *val)
1475 struct ar8216_priv *priv = to_ar8216(dev);
1479 if (!ar8xxx_has_mib_counters(priv))
1482 mutex_lock(&priv->mib_lock);
1484 len = priv->dev.ports * priv->chip->num_mibs *
1485 sizeof(*priv->mib_stats);
1486 memset(priv->mib_stats, '\0', len);
1487 ret = ar8216_mib_flush(priv);
1494 mutex_unlock(&priv->mib_lock);
1499 ar8216_sw_set_port_reset_mib(struct switch_dev *dev,
1500 const struct switch_attr *attr,
1501 struct switch_val *val)
1503 struct ar8216_priv *priv = to_ar8216(dev);
1507 if (!ar8xxx_has_mib_counters(priv))
1510 port = val->port_vlan;
1511 if (port >= dev->ports)
1514 mutex_lock(&priv->mib_lock);
1515 ret = ar8216_mib_capture(priv);
1519 ar8216_mib_fetch_port_stat(priv, port, true);
1524 mutex_unlock(&priv->mib_lock);
1529 ar8216_sw_get_port_mib(struct switch_dev *dev,
1530 const struct switch_attr *attr,
1531 struct switch_val *val)
1533 struct ar8216_priv *priv = to_ar8216(dev);
1534 const struct ar8xxx_chip *chip = priv->chip;
1538 char *buf = priv->buf;
1541 if (!ar8xxx_has_mib_counters(priv))
1544 port = val->port_vlan;
1545 if (port >= dev->ports)
1548 mutex_lock(&priv->mib_lock);
1549 ret = ar8216_mib_capture(priv);
1553 ar8216_mib_fetch_port_stat(priv, port, false);
1555 len += snprintf(buf + len, sizeof(priv->buf) - len,
1556 "Port %d MIB counters\n",
1559 mib_stats = &priv->mib_stats[port * chip->num_mibs];
1560 for (i = 0; i < chip->num_mibs; i++)
1561 len += snprintf(buf + len, sizeof(priv->buf) - len,
1563 chip->mib_decs[i].name,
1572 mutex_unlock(&priv->mib_lock);
1576 static struct switch_attr ar8216_globals[] = {
1578 .type = SWITCH_TYPE_INT,
1579 .name = "enable_vlan",
1580 .description = "Enable VLAN mode",
1581 .set = ar8216_sw_set_vlan,
1582 .get = ar8216_sw_get_vlan,
1586 .type = SWITCH_TYPE_NOVAL,
1587 .name = "reset_mibs",
1588 .description = "Reset all MIB counters",
1589 .set = ar8216_sw_set_reset_mibs,
1594 static struct switch_attr ar8216_port[] = {
1596 .type = SWITCH_TYPE_NOVAL,
1597 .name = "reset_mib",
1598 .description = "Reset single port MIB counters",
1599 .set = ar8216_sw_set_port_reset_mib,
1602 .type = SWITCH_TYPE_STRING,
1604 .description = "Get port's MIB counters",
1606 .get = ar8216_sw_get_port_mib,
1610 static struct switch_attr ar8216_vlan[] = {
1612 .type = SWITCH_TYPE_INT,
1614 .description = "VLAN ID (0-4094)",
1615 .set = ar8216_sw_set_vid,
1616 .get = ar8216_sw_get_vid,
1621 static const struct switch_dev_ops ar8216_sw_ops = {
1623 .attr = ar8216_globals,
1624 .n_attr = ARRAY_SIZE(ar8216_globals),
1627 .attr = ar8216_port,
1628 .n_attr = ARRAY_SIZE(ar8216_port),
1631 .attr = ar8216_vlan,
1632 .n_attr = ARRAY_SIZE(ar8216_vlan),
1634 .get_port_pvid = ar8216_sw_get_pvid,
1635 .set_port_pvid = ar8216_sw_set_pvid,
1636 .get_vlan_ports = ar8216_sw_get_ports,
1637 .set_vlan_ports = ar8216_sw_set_ports,
1638 .apply_config = ar8216_sw_hw_apply,
1639 .reset_switch = ar8216_sw_reset_switch,
1640 .get_port_link = ar8216_sw_get_port_link,
1644 ar8216_id_chip(struct ar8216_priv *priv)
1650 val = ar8216_mii_read(priv, AR8216_REG_CTRL);
1654 id = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
1655 for (i = 0; i < AR8X16_PROBE_RETRIES; i++) {
1658 val = ar8216_mii_read(priv, AR8216_REG_CTRL);
1662 t = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
1667 priv->chip_ver = (id & AR8216_CTRL_VERSION) >> AR8216_CTRL_VERSION_S;
1668 priv->chip_rev = (id & AR8216_CTRL_REVISION);
1670 switch (priv->chip_ver) {
1671 case AR8XXX_VER_AR8216:
1672 priv->chip = &ar8216_chip;
1674 case AR8XXX_VER_AR8236:
1675 priv->chip = &ar8236_chip;
1677 case AR8XXX_VER_AR8316:
1678 priv->chip = &ar8316_chip;
1680 case AR8XXX_VER_AR8327:
1681 priv->mii_lo_first = true;
1682 priv->chip = &ar8327_chip;
1686 "ar8216: Unknown Atheros device [ver=%d, rev=%d, phy_id=%04x%04x]\n",
1687 priv->chip_ver, priv->chip_rev,
1688 mdiobus_read(priv->phy->bus, priv->phy->addr, 2),
1689 mdiobus_read(priv->phy->bus, priv->phy->addr, 3));
1698 ar8xxx_mib_work_func(struct work_struct *work)
1700 struct ar8216_priv *priv;
1703 priv = container_of(work, struct ar8216_priv, mib_work.work);
1705 mutex_lock(&priv->mib_lock);
1707 err = ar8216_mib_capture(priv);
1711 ar8216_mib_fetch_port_stat(priv, priv->mib_next_port, false);
1714 priv->mib_next_port++;
1715 if (priv->mib_next_port >= priv->dev.ports)
1716 priv->mib_next_port = 0;
1718 mutex_unlock(&priv->mib_lock);
1719 schedule_delayed_work(&priv->mib_work,
1720 msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY));
1724 ar8xxx_mib_init(struct ar8216_priv *priv)
1728 if (!ar8xxx_has_mib_counters(priv))
1731 BUG_ON(!priv->chip->mib_decs || !priv->chip->num_mibs);
1733 len = priv->dev.ports * priv->chip->num_mibs *
1734 sizeof(*priv->mib_stats);
1735 priv->mib_stats = kzalloc(len, GFP_KERNEL);
1737 if (!priv->mib_stats)
1740 mutex_init(&priv->mib_lock);
1741 INIT_DELAYED_WORK(&priv->mib_work, ar8xxx_mib_work_func);
1747 ar8xxx_mib_start(struct ar8216_priv *priv)
1749 if (!ar8xxx_has_mib_counters(priv))
1752 schedule_delayed_work(&priv->mib_work,
1753 msecs_to_jiffies(AR8XXX_MIB_WORK_DELAY));
1757 ar8xxx_mib_cleanup(struct ar8216_priv *priv)
1759 if (!ar8xxx_has_mib_counters(priv))
1762 cancel_delayed_work(&priv->mib_work);
1763 kfree(priv->mib_stats);
1767 ar8216_config_init(struct phy_device *pdev)
1769 struct ar8216_priv *priv = pdev->priv;
1770 struct net_device *dev = pdev->attached_dev;
1771 struct switch_dev *swdev;
1775 priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL);
1782 ret = ar8216_id_chip(priv);
1786 if (pdev->addr != 0) {
1787 if (ar8xxx_has_gige(priv)) {
1788 pdev->supported |= SUPPORTED_1000baseT_Full;
1789 pdev->advertising |= ADVERTISED_1000baseT_Full;
1792 if (chip_is_ar8316(priv)) {
1793 /* check if we're attaching to the switch twice */
1794 pdev = pdev->bus->phy_map[0];
1800 /* switch device has not been initialized, reuse priv */
1802 priv->port4_phy = true;
1809 /* switch device has been initialized, reinit */
1811 priv->dev.ports = (AR8216_NUM_PORTS - 1);
1812 priv->initialized = false;
1813 priv->port4_phy = true;
1814 ar8316_hw_init(priv);
1822 if (ar8xxx_has_gige(priv))
1823 pdev->supported = SUPPORTED_1000baseT_Full;
1825 pdev->supported = SUPPORTED_100baseT_Full;
1826 pdev->advertising = pdev->supported;
1828 mutex_init(&priv->reg_mutex);
1829 priv->read = ar8216_mii_read;
1830 priv->write = ar8216_mii_write;
1835 swdev->cpu_port = AR8216_PORT_CPU;
1836 swdev->ops = &ar8216_sw_ops;
1837 swdev->ports = AR8216_NUM_PORTS;
1839 if (chip_is_ar8316(priv)) {
1840 swdev->name = "Atheros AR8316";
1841 swdev->vlans = AR8X16_MAX_VLANS;
1843 if (priv->port4_phy) {
1844 /* port 5 connected to the other mac, therefore unusable */
1845 swdev->ports = (AR8216_NUM_PORTS - 1);
1847 } else if (chip_is_ar8236(priv)) {
1848 swdev->name = "Atheros AR8236";
1849 swdev->vlans = AR8216_NUM_VLANS;
1850 swdev->ports = AR8216_NUM_PORTS;
1851 } else if (chip_is_ar8327(priv)) {
1852 swdev->name = "Atheros AR8327";
1853 swdev->vlans = AR8X16_MAX_VLANS;
1854 swdev->ports = AR8327_NUM_PORTS;
1856 swdev->name = "Atheros AR8216";
1857 swdev->vlans = AR8216_NUM_VLANS;
1860 ret = ar8xxx_mib_init(priv);
1864 ret = register_switch(&priv->dev, pdev->attached_dev);
1866 goto err_cleanup_mib;
1868 printk(KERN_INFO "%s: %s switch driver attached.\n",
1869 pdev->attached_dev->name, swdev->name);
1873 ret = priv->chip->hw_init(priv);
1875 goto err_cleanup_mib;
1877 ret = ar8216_sw_reset_switch(&priv->dev);
1879 goto err_cleanup_mib;
1881 dev->phy_ptr = priv;
1883 /* VID fixup only needed on ar8216 */
1884 if (chip_is_ar8216(priv) && pdev->addr == 0) {
1885 dev->priv_flags |= IFF_NO_IP_ALIGN;
1886 dev->eth_mangle_rx = ar8216_mangle_rx;
1887 dev->eth_mangle_tx = ar8216_mangle_tx;
1892 ar8xxx_mib_start(priv);
1897 ar8xxx_mib_cleanup(priv);
1904 ar8216_read_status(struct phy_device *phydev)
1906 struct ar8216_priv *priv = phydev->priv;
1907 struct switch_port_link link;
1910 if (phydev->addr != 0)
1911 return genphy_read_status(phydev);
1913 ar8216_read_port_link(priv, phydev->addr, &link);
1914 phydev->link = !!link.link;
1918 switch (link.speed) {
1919 case SWITCH_PORT_SPEED_10:
1920 phydev->speed = SPEED_10;
1922 case SWITCH_PORT_SPEED_100:
1923 phydev->speed = SPEED_100;
1925 case SWITCH_PORT_SPEED_1000:
1926 phydev->speed = SPEED_1000;
1931 phydev->duplex = link.duplex ? DUPLEX_FULL : DUPLEX_HALF;
1933 /* flush the address translation unit */
1934 mutex_lock(&priv->reg_mutex);
1935 ret = priv->chip->atu_flush(priv);
1936 mutex_unlock(&priv->reg_mutex);
1938 phydev->state = PHY_RUNNING;
1939 netif_carrier_on(phydev->attached_dev);
1940 phydev->adjust_link(phydev->attached_dev);
1946 ar8216_config_aneg(struct phy_device *phydev)
1948 if (phydev->addr == 0)
1951 return genphy_config_aneg(phydev);
1955 ar8216_probe(struct phy_device *pdev)
1957 struct ar8216_priv *priv;
1960 priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL);
1966 ret = ar8216_id_chip(priv);
1973 ar8216_remove(struct phy_device *pdev)
1975 struct ar8216_priv *priv = pdev->priv;
1976 struct net_device *dev = pdev->attached_dev;
1981 dev->priv_flags &= ~IFF_NO_IP_ALIGN;
1982 dev->eth_mangle_rx = NULL;
1983 dev->eth_mangle_tx = NULL;
1985 if (pdev->addr == 0)
1986 unregister_switch(&priv->dev);
1988 ar8xxx_mib_cleanup(priv);
1992 static struct phy_driver ar8216_driver = {
1993 .phy_id = 0x004d0000,
1994 .name = "Atheros AR8216/AR8236/AR8316",
1995 .phy_id_mask = 0xffff0000,
1996 .features = PHY_BASIC_FEATURES,
1997 .probe = ar8216_probe,
1998 .remove = ar8216_remove,
1999 .config_init = &ar8216_config_init,
2000 .config_aneg = &ar8216_config_aneg,
2001 .read_status = &ar8216_read_status,
2002 .driver = { .owner = THIS_MODULE },
2008 return phy_driver_register(&ar8216_driver);
2014 phy_driver_unregister(&ar8216_driver);
2017 module_init(ar8216_init);
2018 module_exit(ar8216_exit);
2019 MODULE_LICENSE("GPL");