2 * Driver for the built-in ethernet switch of the Atheros AR7240 SoC
3 * Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
4 * Copyright (c) 2010 Felix Fietkau <nbd@openwrt.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
12 #include <linux/etherdevice.h>
13 #include <linux/list.h>
14 #include <linux/netdevice.h>
15 #include <linux/phy.h>
16 #include <linux/mii.h>
17 #include <linux/bitops.h>
18 #include <linux/switch.h>
21 #define BITM(_count) (BIT(_count) - 1)
22 #define BITS(_shift, _count) (BITM(_count) << _shift)
24 #define AR7240_REG_MASK_CTRL 0x00
25 #define AR7240_MASK_CTRL_REVISION_M BITM(8)
26 #define AR7240_MASK_CTRL_VERSION_M BITM(8)
27 #define AR7240_MASK_CTRL_VERSION_S 8
28 #define AR7240_MASK_CTRL_SOFT_RESET BIT(31)
30 #define AR7240_REG_MAC_ADDR0 0x20
31 #define AR7240_REG_MAC_ADDR1 0x24
33 #define AR7240_REG_FLOOD_MASK 0x2c
34 #define AR7240_FLOOD_MASK_BROAD_TO_CPU BIT(26)
36 #define AR7240_REG_GLOBAL_CTRL 0x30
37 #define AR7240_GLOBAL_CTRL_MTU_M BITM(12)
39 #define AR7240_REG_VTU 0x0040
40 #define AR7240_VTU_OP BITM(3)
41 #define AR7240_VTU_OP_NOOP 0x0
42 #define AR7240_VTU_OP_FLUSH 0x1
43 #define AR7240_VTU_OP_LOAD 0x2
44 #define AR7240_VTU_OP_PURGE 0x3
45 #define AR7240_VTU_OP_REMOVE_PORT 0x4
46 #define AR7240_VTU_ACTIVE BIT(3)
47 #define AR7240_VTU_FULL BIT(4)
48 #define AR7240_VTU_PORT BITS(8, 4)
49 #define AR7240_VTU_PORT_S 8
50 #define AR7240_VTU_VID BITS(16, 12)
51 #define AR7240_VTU_VID_S 16
52 #define AR7240_VTU_PRIO BITS(28, 3)
53 #define AR7240_VTU_PRIO_S 28
54 #define AR7240_VTU_PRIO_EN BIT(31)
56 #define AR7240_REG_VTU_DATA 0x0044
57 #define AR7240_VTUDATA_MEMBER BITS(0, 10)
58 #define AR7240_VTUDATA_VALID BIT(11)
60 #define AR7240_REG_ATU 0x50
61 #define AR7240_ATU_FLUSH_ALL 0x1
63 #define AR7240_REG_AT_CTRL 0x5c
64 #define AR7240_AT_CTRL_AGE_TIME BITS(0, 15)
65 #define AR7240_AT_CTRL_AGE_EN BIT(17)
66 #define AR7240_AT_CTRL_LEARN_CHANGE BIT(18)
67 #define AR7240_AT_CTRL_ARP_EN BIT(20)
69 #define AR7240_REG_TAG_PRIORITY 0x70
71 #define AR7240_REG_SERVICE_TAG 0x74
72 #define AR7240_SERVICE_TAG_M BITM(16)
74 #define AR7240_REG_CPU_PORT 0x78
75 #define AR7240_MIRROR_PORT_S 4
76 #define AR7240_CPU_PORT_EN BIT(8)
78 #define AR7240_REG_MIB_FUNCTION0 0x80
79 #define AR7240_MIB_TIMER_M BITM(16)
80 #define AR7240_MIB_AT_HALF_EN BIT(16)
81 #define AR7240_MIB_BUSY BIT(17)
82 #define AR7240_MIB_FUNC_S 24
83 #define AR7240_MIB_FUNC_NO_OP 0x0
84 #define AR7240_MIB_FUNC_FLUSH 0x1
85 #define AR7240_MIB_FUNC_CAPTURE 0x3
87 #define AR7240_REG_MDIO_CTRL 0x98
88 #define AR7240_MDIO_CTRL_DATA_M BITM(16)
89 #define AR7240_MDIO_CTRL_REG_ADDR_S 16
90 #define AR7240_MDIO_CTRL_PHY_ADDR_S 21
91 #define AR7240_MDIO_CTRL_CMD_WRITE 0
92 #define AR7240_MDIO_CTRL_CMD_READ BIT(27)
93 #define AR7240_MDIO_CTRL_MASTER_EN BIT(30)
94 #define AR7240_MDIO_CTRL_BUSY BIT(31)
96 #define AR7240_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100)
98 #define AR7240_REG_PORT_STATUS(_port) (AR7240_REG_PORT_BASE((_port)) + 0x00)
99 #define AR7240_PORT_STATUS_SPEED_M BITM(2)
100 #define AR7240_PORT_STATUS_SPEED_10 0
101 #define AR7240_PORT_STATUS_SPEED_100 1
102 #define AR7240_PORT_STATUS_SPEED_1000 2
103 #define AR7240_PORT_STATUS_TXMAC BIT(2)
104 #define AR7240_PORT_STATUS_RXMAC BIT(3)
105 #define AR7240_PORT_STATUS_TXFLOW BIT(4)
106 #define AR7240_PORT_STATUS_RXFLOW BIT(5)
107 #define AR7240_PORT_STATUS_DUPLEX BIT(6)
108 #define AR7240_PORT_STATUS_LINK_UP BIT(8)
109 #define AR7240_PORT_STATUS_LINK_AUTO BIT(9)
110 #define AR7240_PORT_STATUS_LINK_PAUSE BIT(10)
112 #define AR7240_REG_PORT_CTRL(_port) (AR7240_REG_PORT_BASE((_port)) + 0x04)
113 #define AR7240_PORT_CTRL_STATE_M BITM(3)
114 #define AR7240_PORT_CTRL_STATE_DISABLED 0
115 #define AR7240_PORT_CTRL_STATE_BLOCK 1
116 #define AR7240_PORT_CTRL_STATE_LISTEN 2
117 #define AR7240_PORT_CTRL_STATE_LEARN 3
118 #define AR7240_PORT_CTRL_STATE_FORWARD 4
119 #define AR7240_PORT_CTRL_LEARN_LOCK BIT(7)
120 #define AR7240_PORT_CTRL_VLAN_MODE_S 8
121 #define AR7240_PORT_CTRL_VLAN_MODE_KEEP 0
122 #define AR7240_PORT_CTRL_VLAN_MODE_STRIP 1
123 #define AR7240_PORT_CTRL_VLAN_MODE_ADD 2
124 #define AR7240_PORT_CTRL_VLAN_MODE_DOUBLE_TAG 3
125 #define AR7240_PORT_CTRL_IGMP_SNOOP BIT(10)
126 #define AR7240_PORT_CTRL_HEADER BIT(11)
127 #define AR7240_PORT_CTRL_MAC_LOOP BIT(12)
128 #define AR7240_PORT_CTRL_SINGLE_VLAN BIT(13)
129 #define AR7240_PORT_CTRL_LEARN BIT(14)
130 #define AR7240_PORT_CTRL_DOUBLE_TAG BIT(15)
131 #define AR7240_PORT_CTRL_MIRROR_TX BIT(16)
132 #define AR7240_PORT_CTRL_MIRROR_RX BIT(17)
134 #define AR7240_REG_PORT_VLAN(_port) (AR7240_REG_PORT_BASE((_port)) + 0x08)
136 #define AR7240_PORT_VLAN_DEFAULT_ID_S 0
137 #define AR7240_PORT_VLAN_DEST_PORTS_S 16
138 #define AR7240_PORT_VLAN_MODE_S 30
139 #define AR7240_PORT_VLAN_MODE_PORT_ONLY 0
140 #define AR7240_PORT_VLAN_MODE_PORT_FALLBACK 1
141 #define AR7240_PORT_VLAN_MODE_VLAN_ONLY 2
142 #define AR7240_PORT_VLAN_MODE_SECURE 3
145 #define AR7240_REG_STATS_BASE(_port) (0x20000 + (_port) * 0x100)
147 #define AR7240_STATS_RXBROAD 0x00
148 #define AR7240_STATS_RXPAUSE 0x04
149 #define AR7240_STATS_RXMULTI 0x08
150 #define AR7240_STATS_RXFCSERR 0x0c
151 #define AR7240_STATS_RXALIGNERR 0x10
152 #define AR7240_STATS_RXRUNT 0x14
153 #define AR7240_STATS_RXFRAGMENT 0x18
154 #define AR7240_STATS_RX64BYTE 0x1c
155 #define AR7240_STATS_RX128BYTE 0x20
156 #define AR7240_STATS_RX256BYTE 0x24
157 #define AR7240_STATS_RX512BYTE 0x28
158 #define AR7240_STATS_RX1024BYTE 0x2c
159 #define AR7240_STATS_RX1518BYTE 0x30
160 #define AR7240_STATS_RXMAXBYTE 0x34
161 #define AR7240_STATS_RXTOOLONG 0x38
162 #define AR7240_STATS_RXGOODBYTE 0x3c
163 #define AR7240_STATS_RXBADBYTE 0x44
164 #define AR7240_STATS_RXOVERFLOW 0x4c
165 #define AR7240_STATS_FILTERED 0x50
166 #define AR7240_STATS_TXBROAD 0x54
167 #define AR7240_STATS_TXPAUSE 0x58
168 #define AR7240_STATS_TXMULTI 0x5c
169 #define AR7240_STATS_TXUNDERRUN 0x60
170 #define AR7240_STATS_TX64BYTE 0x64
171 #define AR7240_STATS_TX128BYTE 0x68
172 #define AR7240_STATS_TX256BYTE 0x6c
173 #define AR7240_STATS_TX512BYTE 0x70
174 #define AR7240_STATS_TX1024BYTE 0x74
175 #define AR7240_STATS_TX1518BYTE 0x78
176 #define AR7240_STATS_TXMAXBYTE 0x7c
177 #define AR7240_STATS_TXOVERSIZE 0x80
178 #define AR7240_STATS_TXBYTE 0x84
179 #define AR7240_STATS_TXCOLLISION 0x8c
180 #define AR7240_STATS_TXABORTCOL 0x90
181 #define AR7240_STATS_TXMULTICOL 0x94
182 #define AR7240_STATS_TXSINGLECOL 0x98
183 #define AR7240_STATS_TXEXCDEFER 0x9c
184 #define AR7240_STATS_TXDEFER 0xa0
185 #define AR7240_STATS_TXLATECOL 0xa4
187 #define AR7240_PORT_CPU 0
188 #define AR7240_NUM_PORTS 6
189 #define AR7240_NUM_PHYS 5
191 #define AR7240_PHY_ID1 0x004d
192 #define AR7240_PHY_ID2 0xd041
194 #define AR7240_PORT_MASK(_port) BIT((_port))
195 #define AR7240_PORT_MASK_ALL BITM(AR7240_NUM_PORTS)
196 #define AR7240_PORT_MASK_BUT(_port) (AR7240_PORT_MASK_ALL & ~BIT((_port)))
198 #define AR7240_MAX_VLANS 16
200 #define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev)
203 struct mii_bus *mii_bus;
204 struct switch_dev swdev;
206 u16 vlan_id[AR7240_MAX_VLANS];
207 u8 vlan_table[AR7240_MAX_VLANS];
209 u16 pvid[AR7240_NUM_PORTS];
212 struct ar7240sw_hw_stat {
213 char string[ETH_GSTRING_LEN];
218 static DEFINE_MUTEX(reg_mutex);
220 static inline void ar7240sw_init(struct ar7240sw *as, struct mii_bus *mii)
225 static inline u16 mk_phy_addr(u32 reg)
227 return 0x17 & ((reg >> 4) | 0x10);
230 static inline u16 mk_phy_reg(u32 reg)
232 return (reg << 1) & 0x1e;
235 static inline u16 mk_high_addr(u32 reg)
237 return (reg >> 7) & 0x1ff;
240 static u32 __ar7240sw_reg_read(struct mii_bus *mii, u32 reg)
247 reg = (reg & 0xfffffffc) >> 2;
248 phy_addr = mk_phy_addr(reg);
249 phy_reg = mk_phy_reg(reg);
251 local_irq_save(flags);
252 ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg));
253 lo = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg);
254 hi = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg + 1);
255 local_irq_restore(flags);
257 return (hi << 16) | lo;
260 static void __ar7240sw_reg_write(struct mii_bus *mii, u32 reg, u32 val)
266 reg = (reg & 0xfffffffc) >> 2;
267 phy_addr = mk_phy_addr(reg);
268 phy_reg = mk_phy_reg(reg);
270 local_irq_save(flags);
271 ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg));
272 ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg + 1, (val >> 16));
273 ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg, (val & 0xffff));
274 local_irq_restore(flags);
277 static u32 ar7240sw_reg_read(struct mii_bus *mii, u32 reg_addr)
281 mutex_lock(®_mutex);
282 ret = __ar7240sw_reg_read(mii, reg_addr);
283 mutex_unlock(®_mutex);
288 static void ar7240sw_reg_write(struct mii_bus *mii, u32 reg_addr, u32 reg_val)
290 mutex_lock(®_mutex);
291 __ar7240sw_reg_write(mii, reg_addr, reg_val);
292 mutex_unlock(®_mutex);
295 static u32 ar7240sw_reg_rmw(struct mii_bus *mii, u32 reg, u32 mask, u32 val)
299 mutex_lock(®_mutex);
300 t = __ar7240sw_reg_read(mii, reg);
303 __ar7240sw_reg_write(mii, reg, t);
304 mutex_unlock(®_mutex);
309 static void ar7240sw_reg_set(struct mii_bus *mii, u32 reg, u32 val)
313 mutex_lock(®_mutex);
314 t = __ar7240sw_reg_read(mii, reg);
316 __ar7240sw_reg_write(mii, reg, t);
317 mutex_unlock(®_mutex);
320 static int __ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val,
325 for (i = 0; i < timeout; i++) {
328 t = __ar7240sw_reg_read(mii, reg);
329 if ((t & mask) == val)
338 static int ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val,
343 mutex_lock(®_mutex);
344 ret = __ar7240sw_reg_wait(mii, reg, mask, val, timeout);
345 mutex_unlock(®_mutex);
349 u16 ar7240sw_phy_read(struct mii_bus *mii, unsigned phy_addr,
355 if (phy_addr >= AR7240_NUM_PHYS)
358 mutex_lock(®_mutex);
359 t = (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) |
360 (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) |
361 AR7240_MDIO_CTRL_MASTER_EN |
362 AR7240_MDIO_CTRL_BUSY |
363 AR7240_MDIO_CTRL_CMD_READ;
365 __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t);
366 err = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL,
367 AR7240_MDIO_CTRL_BUSY, 0, 5);
369 val = __ar7240sw_reg_read(mii, AR7240_REG_MDIO_CTRL);
370 mutex_unlock(®_mutex);
372 return val & AR7240_MDIO_CTRL_DATA_M;
375 int ar7240sw_phy_write(struct mii_bus *mii, unsigned phy_addr,
376 unsigned reg_addr, u16 reg_val)
381 if (phy_addr >= AR7240_NUM_PHYS)
384 mutex_lock(®_mutex);
385 t = (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) |
386 (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) |
387 AR7240_MDIO_CTRL_MASTER_EN |
388 AR7240_MDIO_CTRL_BUSY |
389 AR7240_MDIO_CTRL_CMD_WRITE |
392 __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t);
393 ret = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL,
394 AR7240_MDIO_CTRL_BUSY, 0, 5);
395 mutex_unlock(®_mutex);
400 static int ar7240sw_capture_stats(struct ar7240sw *as)
402 struct mii_bus *mii = as->mii_bus;
405 /* Capture the hardware statistics for all ports */
406 ar7240sw_reg_write(mii, AR7240_REG_MIB_FUNCTION0,
407 (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S));
409 /* Wait for the capturing to complete. */
410 ret = ar7240sw_reg_wait(mii, AR7240_REG_MIB_FUNCTION0,
411 AR7240_MIB_BUSY, 0, 10);
415 static void ar7240sw_disable_port(struct ar7240sw *as, unsigned port)
417 ar7240sw_reg_write(as->mii_bus, AR7240_REG_PORT_CTRL(port),
418 AR7240_PORT_CTRL_STATE_DISABLED);
421 static void ar7240sw_setup(struct ar7240sw *as)
423 struct mii_bus *mii = as->mii_bus;
425 /* Enable CPU port, and disable mirror port */
426 ar7240sw_reg_write(mii, AR7240_REG_CPU_PORT,
428 (15 << AR7240_MIRROR_PORT_S));
430 /* Setup TAG priority mapping */
431 ar7240sw_reg_write(mii, AR7240_REG_TAG_PRIORITY, 0xfa50);
433 /* Enable ARP frame acknowledge, aging, MAC replacing */
434 ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL,
435 0x2b /* 5 min age time */ |
436 AR7240_AT_CTRL_AGE_EN |
437 AR7240_AT_CTRL_ARP_EN |
438 AR7240_AT_CTRL_LEARN_CHANGE);
440 /* Enable Broadcast frames transmitted to the CPU */
441 ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
442 AR7240_FLOOD_MASK_BROAD_TO_CPU);
445 ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, AR7240_GLOBAL_CTRL_MTU_M,
448 /* setup Service TAG */
449 ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0);
452 static int ar7240sw_reset(struct ar7240sw *as)
454 struct mii_bus *mii = as->mii_bus;
458 /* Set all ports to disabled state. */
459 for (i = 0; i < AR7240_NUM_PORTS; i++)
460 ar7240sw_disable_port(as, i);
462 /* Wait for transmit queues to drain. */
465 /* Reset the switch. */
466 ar7240sw_reg_write(mii, AR7240_REG_MASK_CTRL,
467 AR7240_MASK_CTRL_SOFT_RESET);
469 ret = ar7240sw_reg_wait(mii, AR7240_REG_MASK_CTRL,
470 AR7240_MASK_CTRL_SOFT_RESET, 0, 1000);
476 static void ar7240sw_setup_port(struct ar7240sw *as, unsigned port, u8 portmask)
478 struct mii_bus *mii = as->mii_bus;
483 ctrl = AR7240_PORT_CTRL_STATE_FORWARD | AR7240_PORT_CTRL_LEARN |
484 AR7240_PORT_CTRL_SINGLE_VLAN;
486 if (port == AR7240_PORT_CPU) {
487 ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port),
488 AR7240_PORT_STATUS_SPEED_1000 |
489 AR7240_PORT_STATUS_TXFLOW |
490 AR7240_PORT_STATUS_RXFLOW |
491 AR7240_PORT_STATUS_TXMAC |
492 AR7240_PORT_STATUS_RXMAC |
493 AR7240_PORT_STATUS_DUPLEX);
495 ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port),
496 AR7240_PORT_STATUS_LINK_AUTO);
499 /* Set the default VID for this port */
501 vlan = as->vlan_id[as->pvid[port]];
502 vlan |= AR7240_PORT_VLAN_MODE_SECURE <<
503 AR7240_PORT_VLAN_MODE_S;
506 vlan |= AR7240_PORT_VLAN_MODE_PORT_ONLY <<
507 AR7240_PORT_VLAN_MODE_S;
510 if (as->vlan && (as->vlan_tagged & BIT(port))) {
511 ctrl |= AR7240_PORT_CTRL_VLAN_MODE_ADD <<
512 AR7240_PORT_CTRL_VLAN_MODE_S;
514 ctrl |= AR7240_PORT_CTRL_VLAN_MODE_STRIP <<
515 AR7240_PORT_CTRL_VLAN_MODE_S;
519 if (port == AR7240_PORT_CPU)
520 portmask = AR7240_PORT_MASK_BUT(AR7240_PORT_CPU);
522 portmask = AR7240_PORT_MASK(AR7240_PORT_CPU);
525 /* allow the port to talk to all other ports, but exclude its
526 * own ID to prevent frames from being reflected back to the
527 * port that they came from */
528 dest_ports = AR7240_PORT_MASK_BUT(port);
530 /* set default VID and and destination ports for this VLAN */
531 vlan |= (portmask << AR7240_PORT_VLAN_DEST_PORTS_S);
533 ar7240sw_reg_write(mii, AR7240_REG_PORT_CTRL(port), ctrl);
534 ar7240sw_reg_write(mii, AR7240_REG_PORT_VLAN(port), vlan);
537 static int ar7240_set_addr(struct ar7240sw *as, u8 *addr)
539 struct mii_bus *mii = as->mii_bus;
542 t = (addr[4] << 8) | addr[5];
543 ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR0, t);
545 t = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
546 ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR1, t);
552 ar7240_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
553 struct switch_val *val)
555 struct ar7240sw *as = sw_to_ar7240(dev);
556 as->vlan_id[val->port_vlan] = val->value.i;
561 ar7240_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
562 struct switch_val *val)
564 struct ar7240sw *as = sw_to_ar7240(dev);
565 val->value.i = as->vlan_id[val->port_vlan];
570 ar7240_set_pvid(struct switch_dev *dev, int port, int vlan)
572 struct ar7240sw *as = sw_to_ar7240(dev);
574 /* make sure no invalid PVIDs get set */
576 if (vlan >= dev->vlans)
579 as->pvid[port] = vlan;
584 ar7240_get_pvid(struct switch_dev *dev, int port, int *vlan)
586 struct ar7240sw *as = sw_to_ar7240(dev);
587 *vlan = as->pvid[port];
592 ar7240_get_ports(struct switch_dev *dev, struct switch_val *val)
594 struct ar7240sw *as = sw_to_ar7240(dev);
595 u8 ports = as->vlan_table[val->port_vlan];
599 for (i = 0; i < AR7240_NUM_PORTS; i++) {
600 struct switch_port *p;
602 if (!(ports & (1 << i)))
605 p = &val->value.ports[val->len++];
607 if (as->vlan_tagged & (1 << i))
608 p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
616 ar7240_set_ports(struct switch_dev *dev, struct switch_val *val)
618 struct ar7240sw *as = sw_to_ar7240(dev);
619 u8 *vt = &as->vlan_table[val->port_vlan];
623 for (i = 0; i < val->len; i++) {
624 struct switch_port *p = &val->value.ports[i];
626 if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
627 as->vlan_tagged |= (1 << p->id);
629 as->vlan_tagged &= ~(1 << p->id);
630 as->pvid[p->id] = val->port_vlan;
632 /* make sure that an untagged port does not
633 * appear in other vlans */
634 for (j = 0; j < AR7240_MAX_VLANS; j++) {
635 if (j == val->port_vlan)
637 as->vlan_table[j] &= ~(1 << p->id);
647 ar7240_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
648 struct switch_val *val)
650 struct ar7240sw *as = sw_to_ar7240(dev);
651 as->vlan = !!val->value.i;
656 ar7240_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
657 struct switch_val *val)
659 struct ar7240sw *as = sw_to_ar7240(dev);
660 val->value.i = as->vlan;
666 ar7240_vtu_op(struct ar7240sw *as, u32 op, u32 val)
668 struct mii_bus *mii = as->mii_bus;
670 if (ar7240sw_reg_wait(mii, AR7240_REG_VTU, AR7240_VTU_ACTIVE, 0, 5))
673 if ((op & AR7240_VTU_OP) == AR7240_VTU_OP_LOAD) {
674 val &= AR7240_VTUDATA_MEMBER;
675 val |= AR7240_VTUDATA_VALID;
676 ar7240sw_reg_write(mii, AR7240_REG_VTU_DATA, val);
678 op |= AR7240_VTU_ACTIVE;
679 ar7240sw_reg_write(mii, AR7240_REG_VTU, op);
683 ar7240_hw_apply(struct switch_dev *dev)
685 struct ar7240sw *as = sw_to_ar7240(dev);
686 u8 portmask[AR7240_NUM_PORTS];
689 /* flush all vlan translation unit entries */
690 ar7240_vtu_op(as, AR7240_VTU_OP_FLUSH, 0);
692 memset(portmask, 0, sizeof(portmask));
694 /* calculate the port destination masks and load vlans
695 * into the vlan translation unit */
696 for (j = 0; j < AR7240_MAX_VLANS; j++) {
697 u8 vp = as->vlan_table[j];
702 for (i = 0; i < AR7240_NUM_PORTS; i++) {
705 portmask[i] |= vp & ~mask;
710 (as->vlan_id[j] << AR7240_VTU_VID_S),
715 * isolate all ports, but connect them to the cpu port */
716 for (i = 0; i < AR7240_NUM_PORTS; i++) {
717 if (i == AR7240_PORT_CPU)
720 portmask[i] = 1 << AR7240_PORT_CPU;
721 portmask[AR7240_PORT_CPU] |= (1 << i);
725 /* update the port destination mask registers and tag settings */
726 for (i = 0; i < AR7240_NUM_PORTS; i++)
727 ar7240sw_setup_port(as, i, portmask[i]);
733 ar7240_reset_switch(struct switch_dev *dev)
735 struct ar7240sw *as = sw_to_ar7240(dev);
740 static struct switch_attr ar7240_globals[] = {
742 .type = SWITCH_TYPE_INT,
743 .name = "enable_vlan",
744 .description = "Enable VLAN mode",
745 .set = ar7240_set_vlan,
746 .get = ar7240_get_vlan,
751 static struct switch_attr ar7240_port[] = {
754 static struct switch_attr ar7240_vlan[] = {
756 .type = SWITCH_TYPE_INT,
758 .description = "VLAN ID",
759 .set = ar7240_set_vid,
760 .get = ar7240_get_vid,
765 static const struct switch_dev_ops ar7240_ops = {
767 .attr = ar7240_globals,
768 .n_attr = ARRAY_SIZE(ar7240_globals),
772 .n_attr = ARRAY_SIZE(ar7240_port),
776 .n_attr = ARRAY_SIZE(ar7240_vlan),
778 .get_port_pvid = ar7240_get_pvid,
779 .set_port_pvid = ar7240_set_pvid,
780 .get_vlan_ports = ar7240_get_ports,
781 .set_vlan_ports = ar7240_set_ports,
782 .apply_config = ar7240_hw_apply,
783 .reset_switch = ar7240_reset_switch,
786 static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
788 struct mii_bus *mii = ag->mii_bus;
790 struct switch_dev *swdev;
797 as = kzalloc(sizeof(*as), GFP_KERNEL);
801 ar7240sw_init(as, mii);
803 ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL);
805 ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) & AR7240_MASK_CTRL_VERSION_M;
807 pr_err("%s: unsupported chip, ctrl=%08x\n",
808 ag->dev->name, ctrl);
812 phy_id1 = ar7240sw_phy_read(mii, 0, MII_PHYSID1);
813 phy_id2 = ar7240sw_phy_read(mii, 0, MII_PHYSID2);
814 if (phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) {
815 pr_err("%s: unknown phy id '%04x:%04x'\n",
816 ag->dev->name, phy_id1, phy_id2);
821 swdev->name = "AR7240 built-in switch";
822 swdev->ports = AR7240_NUM_PORTS;
823 swdev->cpu_port = AR7240_PORT_CPU;
824 swdev->vlans = AR7240_MAX_VLANS;
825 swdev->ops = &ar7240_ops;
827 if (register_switch(&as->swdev, ag->dev) < 0) {
832 pr_info("%s: Found an AR7240 built-in switch\n", ag->dev->name);
834 /* initialize defaults */
835 for (i = 0; i < AR7240_MAX_VLANS; i++)
838 as->vlan_table[0] = AR7240_PORT_MASK_ALL;
843 static void link_function(struct work_struct *work) {
844 struct ag71xx *ag = container_of(work, struct ag71xx, link_work.work);
849 for (i = 0; i < 4; i++) {
850 int link = ar7240sw_phy_read(ag->mii_bus, i, MII_BMSR);
851 if(link & BMSR_LSTATUS) {
857 spin_lock_irqsave(&ag->lock, flags);
858 if(status != ag->link) {
860 ag71xx_link_adjust(ag);
862 spin_unlock_irqrestore(&ag->lock, flags);
864 schedule_delayed_work(&ag->link_work, HZ / 2);
867 void ag71xx_ar7240_start(struct ag71xx *ag)
869 struct ar7240sw *as = ag->phy_priv;
873 ag->speed = SPEED_1000;
876 ar7240_set_addr(as, ag->dev->dev_addr);
877 ar7240_hw_apply(&as->swdev);
879 schedule_delayed_work(&ag->link_work, HZ / 10);
882 void ag71xx_ar7240_stop(struct ag71xx *ag)
884 cancel_delayed_work_sync(&ag->link_work);
887 int __devinit ag71xx_ar7240_init(struct ag71xx *ag)
891 as = ar7240_probe(ag);
898 INIT_DELAYED_WORK(&ag->link_work, link_function);
903 void ag71xx_ar7240_cleanup(struct ag71xx *ag)
905 struct ar7240sw *as = ag->phy_priv;
910 unregister_switch(&as->swdev);