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_VERSION_AR7240 0x01
29 #define AR7240_MASK_CTRL_VERSION_AR934X 0x02
30 #define AR7240_MASK_CTRL_SOFT_RESET BIT(31)
32 #define AR7240_REG_MAC_ADDR0 0x20
33 #define AR7240_REG_MAC_ADDR1 0x24
35 #define AR7240_REG_FLOOD_MASK 0x2c
36 #define AR7240_FLOOD_MASK_BROAD_TO_CPU BIT(26)
38 #define AR7240_REG_GLOBAL_CTRL 0x30
39 #define AR7240_GLOBAL_CTRL_MTU_M BITM(12)
41 #define AR7240_REG_VTU 0x0040
42 #define AR7240_VTU_OP BITM(3)
43 #define AR7240_VTU_OP_NOOP 0x0
44 #define AR7240_VTU_OP_FLUSH 0x1
45 #define AR7240_VTU_OP_LOAD 0x2
46 #define AR7240_VTU_OP_PURGE 0x3
47 #define AR7240_VTU_OP_REMOVE_PORT 0x4
48 #define AR7240_VTU_ACTIVE BIT(3)
49 #define AR7240_VTU_FULL BIT(4)
50 #define AR7240_VTU_PORT BITS(8, 4)
51 #define AR7240_VTU_PORT_S 8
52 #define AR7240_VTU_VID BITS(16, 12)
53 #define AR7240_VTU_VID_S 16
54 #define AR7240_VTU_PRIO BITS(28, 3)
55 #define AR7240_VTU_PRIO_S 28
56 #define AR7240_VTU_PRIO_EN BIT(31)
58 #define AR7240_REG_VTU_DATA 0x0044
59 #define AR7240_VTUDATA_MEMBER BITS(0, 10)
60 #define AR7240_VTUDATA_VALID BIT(11)
62 #define AR7240_REG_ATU 0x50
63 #define AR7240_ATU_FLUSH_ALL 0x1
65 #define AR7240_REG_AT_CTRL 0x5c
66 #define AR7240_AT_CTRL_AGE_TIME BITS(0, 15)
67 #define AR7240_AT_CTRL_AGE_EN BIT(17)
68 #define AR7240_AT_CTRL_LEARN_CHANGE BIT(18)
69 #define AR7240_AT_CTRL_RESERVED BIT(19)
70 #define AR7240_AT_CTRL_ARP_EN BIT(20)
72 #define AR7240_REG_TAG_PRIORITY 0x70
74 #define AR7240_REG_SERVICE_TAG 0x74
75 #define AR7240_SERVICE_TAG_M BITM(16)
77 #define AR7240_REG_CPU_PORT 0x78
78 #define AR7240_MIRROR_PORT_S 4
79 #define AR7240_CPU_PORT_EN BIT(8)
81 #define AR7240_REG_MIB_FUNCTION0 0x80
82 #define AR7240_MIB_TIMER_M BITM(16)
83 #define AR7240_MIB_AT_HALF_EN BIT(16)
84 #define AR7240_MIB_BUSY BIT(17)
85 #define AR7240_MIB_FUNC_S 24
86 #define AR7240_MIB_FUNC_NO_OP 0x0
87 #define AR7240_MIB_FUNC_FLUSH 0x1
88 #define AR7240_MIB_FUNC_CAPTURE 0x3
90 #define AR7240_REG_MDIO_CTRL 0x98
91 #define AR7240_MDIO_CTRL_DATA_M BITM(16)
92 #define AR7240_MDIO_CTRL_REG_ADDR_S 16
93 #define AR7240_MDIO_CTRL_PHY_ADDR_S 21
94 #define AR7240_MDIO_CTRL_CMD_WRITE 0
95 #define AR7240_MDIO_CTRL_CMD_READ BIT(27)
96 #define AR7240_MDIO_CTRL_MASTER_EN BIT(30)
97 #define AR7240_MDIO_CTRL_BUSY BIT(31)
99 #define AR7240_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100)
101 #define AR7240_REG_PORT_STATUS(_port) (AR7240_REG_PORT_BASE((_port)) + 0x00)
102 #define AR7240_PORT_STATUS_SPEED_S 0
103 #define AR7240_PORT_STATUS_SPEED_M BITM(2)
104 #define AR7240_PORT_STATUS_SPEED_10 0
105 #define AR7240_PORT_STATUS_SPEED_100 1
106 #define AR7240_PORT_STATUS_SPEED_1000 2
107 #define AR7240_PORT_STATUS_TXMAC BIT(2)
108 #define AR7240_PORT_STATUS_RXMAC BIT(3)
109 #define AR7240_PORT_STATUS_TXFLOW BIT(4)
110 #define AR7240_PORT_STATUS_RXFLOW BIT(5)
111 #define AR7240_PORT_STATUS_DUPLEX BIT(6)
112 #define AR7240_PORT_STATUS_LINK_UP BIT(8)
113 #define AR7240_PORT_STATUS_LINK_AUTO BIT(9)
114 #define AR7240_PORT_STATUS_LINK_PAUSE BIT(10)
116 #define AR7240_REG_PORT_CTRL(_port) (AR7240_REG_PORT_BASE((_port)) + 0x04)
117 #define AR7240_PORT_CTRL_STATE_M BITM(3)
118 #define AR7240_PORT_CTRL_STATE_DISABLED 0
119 #define AR7240_PORT_CTRL_STATE_BLOCK 1
120 #define AR7240_PORT_CTRL_STATE_LISTEN 2
121 #define AR7240_PORT_CTRL_STATE_LEARN 3
122 #define AR7240_PORT_CTRL_STATE_FORWARD 4
123 #define AR7240_PORT_CTRL_LEARN_LOCK BIT(7)
124 #define AR7240_PORT_CTRL_VLAN_MODE_S 8
125 #define AR7240_PORT_CTRL_VLAN_MODE_KEEP 0
126 #define AR7240_PORT_CTRL_VLAN_MODE_STRIP 1
127 #define AR7240_PORT_CTRL_VLAN_MODE_ADD 2
128 #define AR7240_PORT_CTRL_VLAN_MODE_DOUBLE_TAG 3
129 #define AR7240_PORT_CTRL_IGMP_SNOOP BIT(10)
130 #define AR7240_PORT_CTRL_HEADER BIT(11)
131 #define AR7240_PORT_CTRL_MAC_LOOP BIT(12)
132 #define AR7240_PORT_CTRL_SINGLE_VLAN BIT(13)
133 #define AR7240_PORT_CTRL_LEARN BIT(14)
134 #define AR7240_PORT_CTRL_DOUBLE_TAG BIT(15)
135 #define AR7240_PORT_CTRL_MIRROR_TX BIT(16)
136 #define AR7240_PORT_CTRL_MIRROR_RX BIT(17)
138 #define AR7240_REG_PORT_VLAN(_port) (AR7240_REG_PORT_BASE((_port)) + 0x08)
140 #define AR7240_PORT_VLAN_DEFAULT_ID_S 0
141 #define AR7240_PORT_VLAN_DEST_PORTS_S 16
142 #define AR7240_PORT_VLAN_MODE_S 30
143 #define AR7240_PORT_VLAN_MODE_PORT_ONLY 0
144 #define AR7240_PORT_VLAN_MODE_PORT_FALLBACK 1
145 #define AR7240_PORT_VLAN_MODE_VLAN_ONLY 2
146 #define AR7240_PORT_VLAN_MODE_SECURE 3
149 #define AR7240_REG_STATS_BASE(_port) (0x20000 + (_port) * 0x100)
151 #define AR7240_STATS_RXBROAD 0x00
152 #define AR7240_STATS_RXPAUSE 0x04
153 #define AR7240_STATS_RXMULTI 0x08
154 #define AR7240_STATS_RXFCSERR 0x0c
155 #define AR7240_STATS_RXALIGNERR 0x10
156 #define AR7240_STATS_RXRUNT 0x14
157 #define AR7240_STATS_RXFRAGMENT 0x18
158 #define AR7240_STATS_RX64BYTE 0x1c
159 #define AR7240_STATS_RX128BYTE 0x20
160 #define AR7240_STATS_RX256BYTE 0x24
161 #define AR7240_STATS_RX512BYTE 0x28
162 #define AR7240_STATS_RX1024BYTE 0x2c
163 #define AR7240_STATS_RX1518BYTE 0x30
164 #define AR7240_STATS_RXMAXBYTE 0x34
165 #define AR7240_STATS_RXTOOLONG 0x38
166 #define AR7240_STATS_RXGOODBYTE 0x3c
167 #define AR7240_STATS_RXBADBYTE 0x44
168 #define AR7240_STATS_RXOVERFLOW 0x4c
169 #define AR7240_STATS_FILTERED 0x50
170 #define AR7240_STATS_TXBROAD 0x54
171 #define AR7240_STATS_TXPAUSE 0x58
172 #define AR7240_STATS_TXMULTI 0x5c
173 #define AR7240_STATS_TXUNDERRUN 0x60
174 #define AR7240_STATS_TX64BYTE 0x64
175 #define AR7240_STATS_TX128BYTE 0x68
176 #define AR7240_STATS_TX256BYTE 0x6c
177 #define AR7240_STATS_TX512BYTE 0x70
178 #define AR7240_STATS_TX1024BYTE 0x74
179 #define AR7240_STATS_TX1518BYTE 0x78
180 #define AR7240_STATS_TXMAXBYTE 0x7c
181 #define AR7240_STATS_TXOVERSIZE 0x80
182 #define AR7240_STATS_TXBYTE 0x84
183 #define AR7240_STATS_TXCOLLISION 0x8c
184 #define AR7240_STATS_TXABORTCOL 0x90
185 #define AR7240_STATS_TXMULTICOL 0x94
186 #define AR7240_STATS_TXSINGLECOL 0x98
187 #define AR7240_STATS_TXEXCDEFER 0x9c
188 #define AR7240_STATS_TXDEFER 0xa0
189 #define AR7240_STATS_TXLATECOL 0xa4
191 #define AR7240_PORT_CPU 0
192 #define AR7240_NUM_PORTS 6
193 #define AR7240_NUM_PHYS 5
195 #define AR7240_PHY_ID1 0x004d
196 #define AR7240_PHY_ID2 0xd041
198 #define AR934X_PHY_ID1 0x004d
199 #define AR934X_PHY_ID2 0xd042
201 #define AR7240_MAX_VLANS 16
203 #define AR934X_REG_OPER_MODE0 0x04
204 #define AR934X_OPER_MODE0_MAC_GMII_EN BIT(6)
205 #define AR934X_OPER_MODE0_PHY_MII_EN BIT(10)
207 #define AR934X_REG_OPER_MODE1 0x08
208 #define AR934X_REG_OPER_MODE1_PHY4_MII_EN BIT(28)
210 #define AR934X_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100)
212 #define AR934X_REG_PORT_VLAN1(_port) (AR934X_REG_PORT_BASE((_port)) + 0x08)
213 #define AR934X_PORT_VLAN1_DEFAULT_SVID_S 0
214 #define AR934X_PORT_VLAN1_FORCE_DEFAULT_VID_EN BIT(12)
215 #define AR934X_PORT_VLAN1_PORT_TLS_MODE BIT(13)
216 #define AR934X_PORT_VLAN1_PORT_VLAN_PROP_EN BIT(14)
217 #define AR934X_PORT_VLAN1_PORT_CLONE_EN BIT(15)
218 #define AR934X_PORT_VLAN1_DEFAULT_CVID_S 16
219 #define AR934X_PORT_VLAN1_FORCE_PORT_VLAN_EN BIT(28)
220 #define AR934X_PORT_VLAN1_ING_PORT_PRI_S 29
222 #define AR934X_REG_PORT_VLAN2(_port) (AR934X_REG_PORT_BASE((_port)) + 0x0c)
223 #define AR934X_PORT_VLAN2_PORT_VID_MEM_S 16
224 #define AR934X_PORT_VLAN2_8021Q_MODE_S 30
225 #define AR934X_PORT_VLAN2_8021Q_MODE_PORT_ONLY 0
226 #define AR934X_PORT_VLAN2_8021Q_MODE_PORT_FALLBACK 1
227 #define AR934X_PORT_VLAN2_8021Q_MODE_VLAN_ONLY 2
228 #define AR934X_PORT_VLAN2_8021Q_MODE_SECURE 3
230 #define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev)
232 struct ar7240sw_port_stat {
233 unsigned long rx_broadcast;
234 unsigned long rx_pause;
235 unsigned long rx_multicast;
236 unsigned long rx_fcs_error;
237 unsigned long rx_align_error;
238 unsigned long rx_runt;
239 unsigned long rx_fragments;
240 unsigned long rx_64byte;
241 unsigned long rx_128byte;
242 unsigned long rx_256byte;
243 unsigned long rx_512byte;
244 unsigned long rx_1024byte;
245 unsigned long rx_1518byte;
246 unsigned long rx_maxbyte;
247 unsigned long rx_toolong;
248 unsigned long rx_good_byte;
249 unsigned long rx_bad_byte;
250 unsigned long rx_overflow;
251 unsigned long filtered;
253 unsigned long tx_broadcast;
254 unsigned long tx_pause;
255 unsigned long tx_multicast;
256 unsigned long tx_underrun;
257 unsigned long tx_64byte;
258 unsigned long tx_128byte;
259 unsigned long tx_256byte;
260 unsigned long tx_512byte;
261 unsigned long tx_1024byte;
262 unsigned long tx_1518byte;
263 unsigned long tx_maxbyte;
264 unsigned long tx_oversize;
265 unsigned long tx_byte;
266 unsigned long tx_collision;
267 unsigned long tx_abortcol;
268 unsigned long tx_multicol;
269 unsigned long tx_singlecol;
270 unsigned long tx_excdefer;
271 unsigned long tx_defer;
272 unsigned long tx_xlatecol;
276 struct mii_bus *mii_bus;
277 struct ag71xx_switch_platform_data *swdata;
278 struct switch_dev swdev;
282 u16 vlan_id[AR7240_MAX_VLANS];
283 u8 vlan_table[AR7240_MAX_VLANS];
285 u16 pvid[AR7240_NUM_PORTS];
289 struct ar7240sw_port_stat port_stats[AR7240_NUM_PORTS];
292 struct ar7240sw_hw_stat {
293 char string[ETH_GSTRING_LEN];
298 static DEFINE_MUTEX(reg_mutex);
300 static inline int sw_is_ar7240(struct ar7240sw *as)
302 return as->ver == AR7240_MASK_CTRL_VERSION_AR7240;
305 static inline int sw_is_ar934x(struct ar7240sw *as)
307 return as->ver == AR7240_MASK_CTRL_VERSION_AR934X;
310 static inline u32 ar7240sw_port_mask(struct ar7240sw *as, int port)
315 static inline u32 ar7240sw_port_mask_all(struct ar7240sw *as)
317 return BIT(as->swdev.ports) - 1;
320 static inline u32 ar7240sw_port_mask_but(struct ar7240sw *as, int port)
322 return ar7240sw_port_mask_all(as) & ~BIT(port);
325 static inline u16 mk_phy_addr(u32 reg)
327 return 0x17 & ((reg >> 4) | 0x10);
330 static inline u16 mk_phy_reg(u32 reg)
332 return (reg << 1) & 0x1e;
335 static inline u16 mk_high_addr(u32 reg)
337 return (reg >> 7) & 0x1ff;
340 static u32 __ar7240sw_reg_read(struct mii_bus *mii, u32 reg)
347 reg = (reg & 0xfffffffc) >> 2;
348 phy_addr = mk_phy_addr(reg);
349 phy_reg = mk_phy_reg(reg);
351 local_irq_save(flags);
352 ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg));
353 lo = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg);
354 hi = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg + 1);
355 local_irq_restore(flags);
357 return (hi << 16) | lo;
360 static void __ar7240sw_reg_write(struct mii_bus *mii, u32 reg, u32 val)
366 reg = (reg & 0xfffffffc) >> 2;
367 phy_addr = mk_phy_addr(reg);
368 phy_reg = mk_phy_reg(reg);
370 local_irq_save(flags);
371 ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg));
372 ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg + 1, (val >> 16));
373 ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg, (val & 0xffff));
374 local_irq_restore(flags);
377 static u32 ar7240sw_reg_read(struct mii_bus *mii, u32 reg_addr)
381 mutex_lock(®_mutex);
382 ret = __ar7240sw_reg_read(mii, reg_addr);
383 mutex_unlock(®_mutex);
388 static void ar7240sw_reg_write(struct mii_bus *mii, u32 reg_addr, u32 reg_val)
390 mutex_lock(®_mutex);
391 __ar7240sw_reg_write(mii, reg_addr, reg_val);
392 mutex_unlock(®_mutex);
395 static u32 ar7240sw_reg_rmw(struct mii_bus *mii, u32 reg, u32 mask, u32 val)
399 mutex_lock(®_mutex);
400 t = __ar7240sw_reg_read(mii, reg);
403 __ar7240sw_reg_write(mii, reg, t);
404 mutex_unlock(®_mutex);
409 static void ar7240sw_reg_set(struct mii_bus *mii, u32 reg, u32 val)
413 mutex_lock(®_mutex);
414 t = __ar7240sw_reg_read(mii, reg);
416 __ar7240sw_reg_write(mii, reg, t);
417 mutex_unlock(®_mutex);
420 static int __ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val,
425 for (i = 0; i < timeout; i++) {
428 t = __ar7240sw_reg_read(mii, reg);
429 if ((t & mask) == val)
438 static int ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val,
443 mutex_lock(®_mutex);
444 ret = __ar7240sw_reg_wait(mii, reg, mask, val, timeout);
445 mutex_unlock(®_mutex);
449 u16 ar7240sw_phy_read(struct mii_bus *mii, unsigned phy_addr,
455 if (phy_addr >= AR7240_NUM_PHYS)
458 mutex_lock(®_mutex);
459 t = (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) |
460 (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) |
461 AR7240_MDIO_CTRL_MASTER_EN |
462 AR7240_MDIO_CTRL_BUSY |
463 AR7240_MDIO_CTRL_CMD_READ;
465 __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t);
466 err = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL,
467 AR7240_MDIO_CTRL_BUSY, 0, 5);
469 val = __ar7240sw_reg_read(mii, AR7240_REG_MDIO_CTRL);
470 mutex_unlock(®_mutex);
472 return val & AR7240_MDIO_CTRL_DATA_M;
475 int ar7240sw_phy_write(struct mii_bus *mii, unsigned phy_addr,
476 unsigned reg_addr, u16 reg_val)
481 if (phy_addr >= AR7240_NUM_PHYS)
484 mutex_lock(®_mutex);
485 t = (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) |
486 (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) |
487 AR7240_MDIO_CTRL_MASTER_EN |
488 AR7240_MDIO_CTRL_BUSY |
489 AR7240_MDIO_CTRL_CMD_WRITE |
492 __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t);
493 ret = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL,
494 AR7240_MDIO_CTRL_BUSY, 0, 5);
495 mutex_unlock(®_mutex);
500 static int ar7240sw_capture_stats(struct ar7240sw *as)
502 struct mii_bus *mii = as->mii_bus;
506 write_lock(&as->stats_lock);
508 /* Capture the hardware statistics for all ports */
509 ar7240sw_reg_write(mii, AR7240_REG_MIB_FUNCTION0,
510 (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S));
512 /* Wait for the capturing to complete. */
513 ret = ar7240sw_reg_wait(mii, AR7240_REG_MIB_FUNCTION0,
514 AR7240_MIB_BUSY, 0, 10);
519 for (port = 0; port < AR7240_NUM_PORTS; port++) {
521 struct ar7240sw_port_stat *stats;
523 base = AR7240_REG_STATS_BASE(port);
524 stats = &as->port_stats[port];
526 #define READ_STAT(_r) ar7240sw_reg_read(mii, base + AR7240_STATS_ ## _r)
528 stats->rx_good_byte += READ_STAT(RXGOODBYTE);
529 stats->tx_byte += READ_STAT(TXBYTE);
537 write_unlock(&as->stats_lock);
541 static void ar7240sw_disable_port(struct ar7240sw *as, unsigned port)
543 ar7240sw_reg_write(as->mii_bus, AR7240_REG_PORT_CTRL(port),
544 AR7240_PORT_CTRL_STATE_DISABLED);
547 static void ar7240sw_setup(struct ar7240sw *as)
549 struct mii_bus *mii = as->mii_bus;
551 /* Enable CPU port, and disable mirror port */
552 ar7240sw_reg_write(mii, AR7240_REG_CPU_PORT,
554 (15 << AR7240_MIRROR_PORT_S));
556 /* Setup TAG priority mapping */
557 ar7240sw_reg_write(mii, AR7240_REG_TAG_PRIORITY, 0xfa50);
559 /* Enable ARP frame acknowledge, aging, MAC replacing */
560 ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL,
561 AR7240_AT_CTRL_RESERVED |
562 0x2b /* 5 min age time */ |
563 AR7240_AT_CTRL_AGE_EN |
564 AR7240_AT_CTRL_ARP_EN |
565 AR7240_AT_CTRL_LEARN_CHANGE);
567 /* Enable Broadcast frames transmitted to the CPU */
568 ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
569 AR7240_FLOOD_MASK_BROAD_TO_CPU);
572 ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, AR7240_GLOBAL_CTRL_MTU_M,
575 /* setup Service TAG */
576 ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0);
579 static int ar7240sw_reset(struct ar7240sw *as)
581 struct mii_bus *mii = as->mii_bus;
585 /* Set all ports to disabled state. */
586 for (i = 0; i < AR7240_NUM_PORTS; i++)
587 ar7240sw_disable_port(as, i);
589 /* Wait for transmit queues to drain. */
592 /* Reset the switch. */
593 ar7240sw_reg_write(mii, AR7240_REG_MASK_CTRL,
594 AR7240_MASK_CTRL_SOFT_RESET);
596 ret = ar7240sw_reg_wait(mii, AR7240_REG_MASK_CTRL,
597 AR7240_MASK_CTRL_SOFT_RESET, 0, 1000);
603 static void ar7240sw_setup_port(struct ar7240sw *as, unsigned port, u8 portmask)
605 struct mii_bus *mii = as->mii_bus;
609 ctrl = AR7240_PORT_CTRL_STATE_FORWARD | AR7240_PORT_CTRL_LEARN |
610 AR7240_PORT_CTRL_SINGLE_VLAN;
612 if (port == AR7240_PORT_CPU) {
613 ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port),
614 AR7240_PORT_STATUS_SPEED_1000 |
615 AR7240_PORT_STATUS_TXFLOW |
616 AR7240_PORT_STATUS_RXFLOW |
617 AR7240_PORT_STATUS_TXMAC |
618 AR7240_PORT_STATUS_RXMAC |
619 AR7240_PORT_STATUS_DUPLEX);
621 ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port),
622 AR7240_PORT_STATUS_LINK_AUTO);
625 /* Set the default VID for this port */
627 vid = as->vlan_id[as->pvid[port]];
628 mode = AR7240_PORT_VLAN_MODE_SECURE;
631 mode = AR7240_PORT_VLAN_MODE_PORT_ONLY;
635 if (as->vlan_tagged & BIT(port))
636 ctrl |= AR7240_PORT_CTRL_VLAN_MODE_ADD <<
637 AR7240_PORT_CTRL_VLAN_MODE_S;
639 ctrl |= AR7240_PORT_CTRL_VLAN_MODE_STRIP <<
640 AR7240_PORT_CTRL_VLAN_MODE_S;
642 ctrl |= AR7240_PORT_CTRL_VLAN_MODE_KEEP <<
643 AR7240_PORT_CTRL_VLAN_MODE_S;
647 if (port == AR7240_PORT_CPU)
648 portmask = ar7240sw_port_mask_but(as, AR7240_PORT_CPU);
650 portmask = ar7240sw_port_mask(as, AR7240_PORT_CPU);
653 /* allow the port to talk to all other ports, but exclude its
654 * own ID to prevent frames from being reflected back to the
655 * port that they came from */
656 portmask &= ar7240sw_port_mask_but(as, port);
658 ar7240sw_reg_write(mii, AR7240_REG_PORT_CTRL(port), ctrl);
659 if (sw_is_ar934x(as)) {
662 vlan1 = (vid << AR934X_PORT_VLAN1_DEFAULT_CVID_S);
663 vlan2 = (portmask << AR934X_PORT_VLAN2_PORT_VID_MEM_S) |
664 (mode << AR934X_PORT_VLAN2_8021Q_MODE_S);
665 ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN1(port), vlan1);
666 ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN2(port), vlan2);
670 vlan = vid | (mode << AR7240_PORT_VLAN_MODE_S) |
671 (portmask << AR7240_PORT_VLAN_DEST_PORTS_S);
673 ar7240sw_reg_write(mii, AR7240_REG_PORT_VLAN(port), vlan);
677 static int ar7240_set_addr(struct ar7240sw *as, u8 *addr)
679 struct mii_bus *mii = as->mii_bus;
682 t = (addr[4] << 8) | addr[5];
683 ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR0, t);
685 t = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
686 ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR1, t);
692 ar7240_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
693 struct switch_val *val)
695 struct ar7240sw *as = sw_to_ar7240(dev);
696 as->vlan_id[val->port_vlan] = val->value.i;
701 ar7240_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
702 struct switch_val *val)
704 struct ar7240sw *as = sw_to_ar7240(dev);
705 val->value.i = as->vlan_id[val->port_vlan];
710 ar7240_set_pvid(struct switch_dev *dev, int port, int vlan)
712 struct ar7240sw *as = sw_to_ar7240(dev);
714 /* make sure no invalid PVIDs get set */
716 if (vlan >= dev->vlans)
719 as->pvid[port] = vlan;
724 ar7240_get_pvid(struct switch_dev *dev, int port, int *vlan)
726 struct ar7240sw *as = sw_to_ar7240(dev);
727 *vlan = as->pvid[port];
732 ar7240_get_ports(struct switch_dev *dev, struct switch_val *val)
734 struct ar7240sw *as = sw_to_ar7240(dev);
735 u8 ports = as->vlan_table[val->port_vlan];
739 for (i = 0; i < as->swdev.ports; i++) {
740 struct switch_port *p;
742 if (!(ports & (1 << i)))
745 p = &val->value.ports[val->len++];
747 if (as->vlan_tagged & (1 << i))
748 p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
756 ar7240_set_ports(struct switch_dev *dev, struct switch_val *val)
758 struct ar7240sw *as = sw_to_ar7240(dev);
759 u8 *vt = &as->vlan_table[val->port_vlan];
763 for (i = 0; i < val->len; i++) {
764 struct switch_port *p = &val->value.ports[i];
766 if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
767 as->vlan_tagged |= (1 << p->id);
769 as->vlan_tagged &= ~(1 << p->id);
770 as->pvid[p->id] = val->port_vlan;
772 /* make sure that an untagged port does not
773 * appear in other vlans */
774 for (j = 0; j < AR7240_MAX_VLANS; j++) {
775 if (j == val->port_vlan)
777 as->vlan_table[j] &= ~(1 << p->id);
787 ar7240_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
788 struct switch_val *val)
790 struct ar7240sw *as = sw_to_ar7240(dev);
791 as->vlan = !!val->value.i;
796 ar7240_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
797 struct switch_val *val)
799 struct ar7240sw *as = sw_to_ar7240(dev);
800 val->value.i = as->vlan;
805 ar7240_vtu_op(struct ar7240sw *as, u32 op, u32 val)
807 struct mii_bus *mii = as->mii_bus;
809 if (ar7240sw_reg_wait(mii, AR7240_REG_VTU, AR7240_VTU_ACTIVE, 0, 5))
812 if ((op & AR7240_VTU_OP) == AR7240_VTU_OP_LOAD) {
813 val &= AR7240_VTUDATA_MEMBER;
814 val |= AR7240_VTUDATA_VALID;
815 ar7240sw_reg_write(mii, AR7240_REG_VTU_DATA, val);
817 op |= AR7240_VTU_ACTIVE;
818 ar7240sw_reg_write(mii, AR7240_REG_VTU, op);
822 ar7240_hw_apply(struct switch_dev *dev)
824 struct ar7240sw *as = sw_to_ar7240(dev);
825 u8 portmask[AR7240_NUM_PORTS];
828 /* flush all vlan translation unit entries */
829 ar7240_vtu_op(as, AR7240_VTU_OP_FLUSH, 0);
831 memset(portmask, 0, sizeof(portmask));
833 /* calculate the port destination masks and load vlans
834 * into the vlan translation unit */
835 for (j = 0; j < AR7240_MAX_VLANS; j++) {
836 u8 vp = as->vlan_table[j];
841 for (i = 0; i < as->swdev.ports; i++) {
844 portmask[i] |= vp & ~mask;
849 (as->vlan_id[j] << AR7240_VTU_VID_S),
854 * isolate all ports, but connect them to the cpu port */
855 for (i = 0; i < as->swdev.ports; i++) {
856 if (i == AR7240_PORT_CPU)
859 portmask[i] = 1 << AR7240_PORT_CPU;
860 portmask[AR7240_PORT_CPU] |= (1 << i);
864 /* update the port destination mask registers and tag settings */
865 for (i = 0; i < as->swdev.ports; i++)
866 ar7240sw_setup_port(as, i, portmask[i]);
872 ar7240_reset_switch(struct switch_dev *dev)
874 struct ar7240sw *as = sw_to_ar7240(dev);
880 ar7240_get_port_link(struct switch_dev *dev, int port,
881 struct switch_port_link *link)
883 struct ar7240sw *as = sw_to_ar7240(dev);
884 struct mii_bus *mii = as->mii_bus;
887 if (port > AR7240_NUM_PORTS)
890 status = ar7240sw_reg_read(mii, AR7240_REG_PORT_STATUS(port));
891 link->aneg = !!(status & AR7240_PORT_STATUS_LINK_AUTO);
893 link->link = !!(status & AR7240_PORT_STATUS_LINK_UP);
900 link->duplex = !!(status & AR7240_PORT_STATUS_DUPLEX);
901 link->tx_flow = !!(status & AR7240_PORT_STATUS_TXFLOW);
902 link->rx_flow = !!(status & AR7240_PORT_STATUS_RXFLOW);
903 switch (status & AR7240_PORT_STATUS_SPEED_M) {
904 case AR7240_PORT_STATUS_SPEED_10:
905 link->speed = SWITCH_PORT_SPEED_10;
907 case AR7240_PORT_STATUS_SPEED_100:
908 link->speed = SWITCH_PORT_SPEED_100;
910 case AR7240_PORT_STATUS_SPEED_1000:
911 link->speed = SWITCH_PORT_SPEED_1000;
919 ar7240_get_port_stats(struct switch_dev *dev, int port,
920 struct switch_port_stats *stats)
922 struct ar7240sw *as = sw_to_ar7240(dev);
924 if (port > AR7240_NUM_PORTS)
927 ar7240sw_capture_stats(as);
929 read_lock(&as->stats_lock);
930 stats->rx_bytes = as->port_stats[port].rx_good_byte;
931 stats->tx_bytes = as->port_stats[port].tx_byte;
932 read_unlock(&as->stats_lock);
937 static struct switch_attr ar7240_globals[] = {
939 .type = SWITCH_TYPE_INT,
940 .name = "enable_vlan",
941 .description = "Enable VLAN mode",
942 .set = ar7240_set_vlan,
943 .get = ar7240_get_vlan,
948 static struct switch_attr ar7240_port[] = {
951 static struct switch_attr ar7240_vlan[] = {
953 .type = SWITCH_TYPE_INT,
955 .description = "VLAN ID",
956 .set = ar7240_set_vid,
957 .get = ar7240_get_vid,
962 static const struct switch_dev_ops ar7240_ops = {
964 .attr = ar7240_globals,
965 .n_attr = ARRAY_SIZE(ar7240_globals),
969 .n_attr = ARRAY_SIZE(ar7240_port),
973 .n_attr = ARRAY_SIZE(ar7240_vlan),
975 .get_port_pvid = ar7240_get_pvid,
976 .set_port_pvid = ar7240_set_pvid,
977 .get_vlan_ports = ar7240_get_ports,
978 .set_vlan_ports = ar7240_set_ports,
979 .apply_config = ar7240_hw_apply,
980 .reset_switch = ar7240_reset_switch,
981 .get_port_link = ar7240_get_port_link,
982 .get_port_stats = ar7240_get_port_stats,
985 static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
987 struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
988 struct mii_bus *mii = ag->mii_bus;
990 struct switch_dev *swdev;
996 phy_id1 = ar7240sw_phy_read(mii, 0, MII_PHYSID1);
997 phy_id2 = ar7240sw_phy_read(mii, 0, MII_PHYSID2);
998 if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) &&
999 (phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) {
1000 pr_err("%s: unknown phy id '%04x:%04x'\n",
1001 ag->dev->name, phy_id1, phy_id2);
1005 as = kzalloc(sizeof(*as), GFP_KERNEL);
1010 as->swdata = pdata->switch_data;
1014 ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL);
1015 as->ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) &
1016 AR7240_MASK_CTRL_VERSION_M;
1018 if (sw_is_ar7240(as)) {
1019 swdev->name = "AR7240/AR9330 built-in switch";
1020 } else if (sw_is_ar934x(as)) {
1021 swdev->name = "AR934X built-in switch";
1023 if (pdata->phy_if_mode == PHY_INTERFACE_MODE_GMII) {
1024 ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0,
1025 AR934X_OPER_MODE0_MAC_GMII_EN);
1026 } else if (pdata->phy_if_mode == PHY_INTERFACE_MODE_MII) {
1027 ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0,
1028 AR934X_OPER_MODE0_PHY_MII_EN);
1030 pr_err("%s: invalid PHY interface mode\n",
1035 if (as->swdata->phy4_mii_en)
1036 ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE1,
1037 AR934X_REG_OPER_MODE1_PHY4_MII_EN);
1039 pr_err("%s: unsupported chip, ctrl=%08x\n",
1040 ag->dev->name, ctrl);
1044 swdev->ports = AR7240_NUM_PORTS - 1;
1045 swdev->cpu_port = AR7240_PORT_CPU;
1046 swdev->vlans = AR7240_MAX_VLANS;
1047 swdev->ops = &ar7240_ops;
1049 if (register_switch(&as->swdev, ag->dev) < 0)
1052 pr_info("%s: Found an %s\n", ag->dev->name, swdev->name);
1054 /* initialize defaults */
1055 for (i = 0; i < AR7240_MAX_VLANS; i++)
1058 as->vlan_table[0] = ar7240sw_port_mask_all(as);
1067 static void link_function(struct work_struct *work) {
1068 struct ag71xx *ag = container_of(work, struct ag71xx, link_work.work);
1069 unsigned long flags;
1073 for (i = 0; i < 4; i++) {
1074 int link = ar7240sw_phy_read(ag->mii_bus, i, MII_BMSR);
1075 if(link & BMSR_LSTATUS) {
1081 spin_lock_irqsave(&ag->lock, flags);
1082 if(status != ag->link) {
1084 ag71xx_link_adjust(ag);
1086 spin_unlock_irqrestore(&ag->lock, flags);
1088 schedule_delayed_work(&ag->link_work, HZ / 2);
1091 void ag71xx_ar7240_start(struct ag71xx *ag)
1093 struct ar7240sw *as = ag->phy_priv;
1097 ag->speed = SPEED_1000;
1100 ar7240_set_addr(as, ag->dev->dev_addr);
1101 ar7240_hw_apply(&as->swdev);
1103 schedule_delayed_work(&ag->link_work, HZ / 10);
1106 void ag71xx_ar7240_stop(struct ag71xx *ag)
1108 cancel_delayed_work_sync(&ag->link_work);
1111 int __devinit ag71xx_ar7240_init(struct ag71xx *ag)
1113 struct ar7240sw *as;
1115 as = ar7240_probe(ag);
1122 rwlock_init(&as->stats_lock);
1123 INIT_DELAYED_WORK(&ag->link_work, link_function);
1128 void ag71xx_ar7240_cleanup(struct ag71xx *ag)
1130 struct ar7240sw *as = ag->phy_priv;
1135 unregister_switch(&as->swdev);
1137 ag->phy_priv = NULL;