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_FLOOD_MASK 0x2c
211 #define AR934X_FLOOD_MASK_BC_DP(_p) BIT(25 + (_p))
213 #define AR934X_REG_QM_CTRL 0x3c
214 #define AR934X_QM_CTRL_ARP_EN BIT(15)
216 #define AR934X_REG_AT_CTRL 0x5c
217 #define AR934X_AT_CTRL_AGE_TIME BITS(0, 15)
218 #define AR934X_AT_CTRL_AGE_EN BIT(17)
219 #define AR934X_AT_CTRL_LEARN_CHANGE BIT(18)
221 #define AR934X_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100)
223 #define AR934X_REG_PORT_VLAN1(_port) (AR934X_REG_PORT_BASE((_port)) + 0x08)
224 #define AR934X_PORT_VLAN1_DEFAULT_SVID_S 0
225 #define AR934X_PORT_VLAN1_FORCE_DEFAULT_VID_EN BIT(12)
226 #define AR934X_PORT_VLAN1_PORT_TLS_MODE BIT(13)
227 #define AR934X_PORT_VLAN1_PORT_VLAN_PROP_EN BIT(14)
228 #define AR934X_PORT_VLAN1_PORT_CLONE_EN BIT(15)
229 #define AR934X_PORT_VLAN1_DEFAULT_CVID_S 16
230 #define AR934X_PORT_VLAN1_FORCE_PORT_VLAN_EN BIT(28)
231 #define AR934X_PORT_VLAN1_ING_PORT_PRI_S 29
233 #define AR934X_REG_PORT_VLAN2(_port) (AR934X_REG_PORT_BASE((_port)) + 0x0c)
234 #define AR934X_PORT_VLAN2_PORT_VID_MEM_S 16
235 #define AR934X_PORT_VLAN2_8021Q_MODE_S 30
236 #define AR934X_PORT_VLAN2_8021Q_MODE_PORT_ONLY 0
237 #define AR934X_PORT_VLAN2_8021Q_MODE_PORT_FALLBACK 1
238 #define AR934X_PORT_VLAN2_8021Q_MODE_VLAN_ONLY 2
239 #define AR934X_PORT_VLAN2_8021Q_MODE_SECURE 3
241 #define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev)
243 struct ar7240sw_port_stat {
244 unsigned long rx_broadcast;
245 unsigned long rx_pause;
246 unsigned long rx_multicast;
247 unsigned long rx_fcs_error;
248 unsigned long rx_align_error;
249 unsigned long rx_runt;
250 unsigned long rx_fragments;
251 unsigned long rx_64byte;
252 unsigned long rx_128byte;
253 unsigned long rx_256byte;
254 unsigned long rx_512byte;
255 unsigned long rx_1024byte;
256 unsigned long rx_1518byte;
257 unsigned long rx_maxbyte;
258 unsigned long rx_toolong;
259 unsigned long rx_good_byte;
260 unsigned long rx_bad_byte;
261 unsigned long rx_overflow;
262 unsigned long filtered;
264 unsigned long tx_broadcast;
265 unsigned long tx_pause;
266 unsigned long tx_multicast;
267 unsigned long tx_underrun;
268 unsigned long tx_64byte;
269 unsigned long tx_128byte;
270 unsigned long tx_256byte;
271 unsigned long tx_512byte;
272 unsigned long tx_1024byte;
273 unsigned long tx_1518byte;
274 unsigned long tx_maxbyte;
275 unsigned long tx_oversize;
276 unsigned long tx_byte;
277 unsigned long tx_collision;
278 unsigned long tx_abortcol;
279 unsigned long tx_multicol;
280 unsigned long tx_singlecol;
281 unsigned long tx_excdefer;
282 unsigned long tx_defer;
283 unsigned long tx_xlatecol;
287 struct mii_bus *mii_bus;
288 struct ag71xx_switch_platform_data *swdata;
289 struct switch_dev swdev;
293 u16 vlan_id[AR7240_MAX_VLANS];
294 u8 vlan_table[AR7240_MAX_VLANS];
296 u16 pvid[AR7240_NUM_PORTS];
300 struct ar7240sw_port_stat port_stats[AR7240_NUM_PORTS];
303 struct ar7240sw_hw_stat {
304 char string[ETH_GSTRING_LEN];
309 static DEFINE_MUTEX(reg_mutex);
311 static inline int sw_is_ar7240(struct ar7240sw *as)
313 return as->ver == AR7240_MASK_CTRL_VERSION_AR7240;
316 static inline int sw_is_ar934x(struct ar7240sw *as)
318 return as->ver == AR7240_MASK_CTRL_VERSION_AR934X;
321 static inline u32 ar7240sw_port_mask(struct ar7240sw *as, int port)
326 static inline u32 ar7240sw_port_mask_all(struct ar7240sw *as)
328 return BIT(as->swdev.ports) - 1;
331 static inline u32 ar7240sw_port_mask_but(struct ar7240sw *as, int port)
333 return ar7240sw_port_mask_all(as) & ~BIT(port);
336 static inline u16 mk_phy_addr(u32 reg)
338 return 0x17 & ((reg >> 4) | 0x10);
341 static inline u16 mk_phy_reg(u32 reg)
343 return (reg << 1) & 0x1e;
346 static inline u16 mk_high_addr(u32 reg)
348 return (reg >> 7) & 0x1ff;
351 static u32 __ar7240sw_reg_read(struct mii_bus *mii, u32 reg)
358 reg = (reg & 0xfffffffc) >> 2;
359 phy_addr = mk_phy_addr(reg);
360 phy_reg = mk_phy_reg(reg);
362 local_irq_save(flags);
363 ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg));
364 lo = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg);
365 hi = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg + 1);
366 local_irq_restore(flags);
368 return (hi << 16) | lo;
371 static void __ar7240sw_reg_write(struct mii_bus *mii, u32 reg, u32 val)
377 reg = (reg & 0xfffffffc) >> 2;
378 phy_addr = mk_phy_addr(reg);
379 phy_reg = mk_phy_reg(reg);
381 local_irq_save(flags);
382 ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg));
383 ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg + 1, (val >> 16));
384 ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg, (val & 0xffff));
385 local_irq_restore(flags);
388 static u32 ar7240sw_reg_read(struct mii_bus *mii, u32 reg_addr)
392 mutex_lock(®_mutex);
393 ret = __ar7240sw_reg_read(mii, reg_addr);
394 mutex_unlock(®_mutex);
399 static void ar7240sw_reg_write(struct mii_bus *mii, u32 reg_addr, u32 reg_val)
401 mutex_lock(®_mutex);
402 __ar7240sw_reg_write(mii, reg_addr, reg_val);
403 mutex_unlock(®_mutex);
406 static u32 ar7240sw_reg_rmw(struct mii_bus *mii, u32 reg, u32 mask, u32 val)
410 mutex_lock(®_mutex);
411 t = __ar7240sw_reg_read(mii, reg);
414 __ar7240sw_reg_write(mii, reg, t);
415 mutex_unlock(®_mutex);
420 static void ar7240sw_reg_set(struct mii_bus *mii, u32 reg, u32 val)
424 mutex_lock(®_mutex);
425 t = __ar7240sw_reg_read(mii, reg);
427 __ar7240sw_reg_write(mii, reg, t);
428 mutex_unlock(®_mutex);
431 static int __ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val,
436 for (i = 0; i < timeout; i++) {
439 t = __ar7240sw_reg_read(mii, reg);
440 if ((t & mask) == val)
449 static int ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val,
454 mutex_lock(®_mutex);
455 ret = __ar7240sw_reg_wait(mii, reg, mask, val, timeout);
456 mutex_unlock(®_mutex);
460 u16 ar7240sw_phy_read(struct mii_bus *mii, unsigned phy_addr,
466 if (phy_addr >= AR7240_NUM_PHYS)
469 mutex_lock(®_mutex);
470 t = (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) |
471 (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) |
472 AR7240_MDIO_CTRL_MASTER_EN |
473 AR7240_MDIO_CTRL_BUSY |
474 AR7240_MDIO_CTRL_CMD_READ;
476 __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t);
477 err = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL,
478 AR7240_MDIO_CTRL_BUSY, 0, 5);
480 val = __ar7240sw_reg_read(mii, AR7240_REG_MDIO_CTRL);
481 mutex_unlock(®_mutex);
483 return val & AR7240_MDIO_CTRL_DATA_M;
486 int ar7240sw_phy_write(struct mii_bus *mii, unsigned phy_addr,
487 unsigned reg_addr, u16 reg_val)
492 if (phy_addr >= AR7240_NUM_PHYS)
495 mutex_lock(®_mutex);
496 t = (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) |
497 (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) |
498 AR7240_MDIO_CTRL_MASTER_EN |
499 AR7240_MDIO_CTRL_BUSY |
500 AR7240_MDIO_CTRL_CMD_WRITE |
503 __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t);
504 ret = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL,
505 AR7240_MDIO_CTRL_BUSY, 0, 5);
506 mutex_unlock(®_mutex);
511 static int ar7240sw_capture_stats(struct ar7240sw *as)
513 struct mii_bus *mii = as->mii_bus;
517 write_lock(&as->stats_lock);
519 /* Capture the hardware statistics for all ports */
520 ar7240sw_reg_write(mii, AR7240_REG_MIB_FUNCTION0,
521 (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S));
523 /* Wait for the capturing to complete. */
524 ret = ar7240sw_reg_wait(mii, AR7240_REG_MIB_FUNCTION0,
525 AR7240_MIB_BUSY, 0, 10);
530 for (port = 0; port < AR7240_NUM_PORTS; port++) {
532 struct ar7240sw_port_stat *stats;
534 base = AR7240_REG_STATS_BASE(port);
535 stats = &as->port_stats[port];
537 #define READ_STAT(_r) ar7240sw_reg_read(mii, base + AR7240_STATS_ ## _r)
539 stats->rx_good_byte += READ_STAT(RXGOODBYTE);
540 stats->tx_byte += READ_STAT(TXBYTE);
548 write_unlock(&as->stats_lock);
552 static void ar7240sw_disable_port(struct ar7240sw *as, unsigned port)
554 ar7240sw_reg_write(as->mii_bus, AR7240_REG_PORT_CTRL(port),
555 AR7240_PORT_CTRL_STATE_DISABLED);
558 static void ar7240sw_setup(struct ar7240sw *as)
560 struct mii_bus *mii = as->mii_bus;
562 /* Enable CPU port, and disable mirror port */
563 ar7240sw_reg_write(mii, AR7240_REG_CPU_PORT,
565 (15 << AR7240_MIRROR_PORT_S));
567 /* Setup TAG priority mapping */
568 ar7240sw_reg_write(mii, AR7240_REG_TAG_PRIORITY, 0xfa50);
570 if (sw_is_ar934x(as)) {
571 /* Enable aging, MAC replacing */
572 ar7240sw_reg_write(mii, AR934X_REG_AT_CTRL,
573 0x2b /* 5 min age time */ |
574 AR934X_AT_CTRL_AGE_EN |
575 AR934X_AT_CTRL_LEARN_CHANGE);
576 /* Enable ARP frame acknowledge */
577 ar7240sw_reg_set(mii, AR934X_REG_QM_CTRL,
578 AR934X_QM_CTRL_ARP_EN);
579 /* Enable Broadcast frames transmitted to the CPU */
580 ar7240sw_reg_set(mii, AR934X_REG_FLOOD_MASK,
581 AR934X_FLOOD_MASK_BC_DP(0));
583 /* Enable ARP frame acknowledge, aging, MAC replacing */
584 ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL,
585 AR7240_AT_CTRL_RESERVED |
586 0x2b /* 5 min age time */ |
587 AR7240_AT_CTRL_AGE_EN |
588 AR7240_AT_CTRL_ARP_EN |
589 AR7240_AT_CTRL_LEARN_CHANGE);
590 /* Enable Broadcast frames transmitted to the CPU */
591 ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
592 AR7240_FLOOD_MASK_BROAD_TO_CPU);
596 ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, AR7240_GLOBAL_CTRL_MTU_M,
599 /* setup Service TAG */
600 ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0);
603 static int ar7240sw_reset(struct ar7240sw *as)
605 struct mii_bus *mii = as->mii_bus;
609 /* Set all ports to disabled state. */
610 for (i = 0; i < AR7240_NUM_PORTS; i++)
611 ar7240sw_disable_port(as, i);
613 /* Wait for transmit queues to drain. */
616 /* Reset the switch. */
617 ar7240sw_reg_write(mii, AR7240_REG_MASK_CTRL,
618 AR7240_MASK_CTRL_SOFT_RESET);
620 ret = ar7240sw_reg_wait(mii, AR7240_REG_MASK_CTRL,
621 AR7240_MASK_CTRL_SOFT_RESET, 0, 1000);
624 for (i = 0; i < AR7240_NUM_PHYS; i++) {
625 ar7240sw_phy_write(mii, i, MII_ADVERTISE,
626 ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
627 ADVERTISE_PAUSE_ASYM);
628 ar7240sw_phy_write(mii, i, MII_BMCR,
629 BMCR_RESET | BMCR_ANENABLE);
637 static void ar7240sw_setup_port(struct ar7240sw *as, unsigned port, u8 portmask)
639 struct mii_bus *mii = as->mii_bus;
643 ctrl = AR7240_PORT_CTRL_STATE_FORWARD | AR7240_PORT_CTRL_LEARN |
644 AR7240_PORT_CTRL_SINGLE_VLAN;
646 if (port == AR7240_PORT_CPU) {
647 ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port),
648 AR7240_PORT_STATUS_SPEED_1000 |
649 AR7240_PORT_STATUS_TXFLOW |
650 AR7240_PORT_STATUS_RXFLOW |
651 AR7240_PORT_STATUS_TXMAC |
652 AR7240_PORT_STATUS_RXMAC |
653 AR7240_PORT_STATUS_DUPLEX);
655 ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port),
656 AR7240_PORT_STATUS_LINK_AUTO);
659 /* Set the default VID for this port */
661 vid = as->vlan_id[as->pvid[port]];
662 mode = AR7240_PORT_VLAN_MODE_SECURE;
665 mode = AR7240_PORT_VLAN_MODE_PORT_ONLY;
669 if (as->vlan_tagged & BIT(port))
670 ctrl |= AR7240_PORT_CTRL_VLAN_MODE_ADD <<
671 AR7240_PORT_CTRL_VLAN_MODE_S;
673 ctrl |= AR7240_PORT_CTRL_VLAN_MODE_STRIP <<
674 AR7240_PORT_CTRL_VLAN_MODE_S;
676 ctrl |= AR7240_PORT_CTRL_VLAN_MODE_KEEP <<
677 AR7240_PORT_CTRL_VLAN_MODE_S;
681 if (port == AR7240_PORT_CPU)
682 portmask = ar7240sw_port_mask_but(as, AR7240_PORT_CPU);
684 portmask = ar7240sw_port_mask(as, AR7240_PORT_CPU);
687 /* allow the port to talk to all other ports, but exclude its
688 * own ID to prevent frames from being reflected back to the
689 * port that they came from */
690 portmask &= ar7240sw_port_mask_but(as, port);
692 ar7240sw_reg_write(mii, AR7240_REG_PORT_CTRL(port), ctrl);
693 if (sw_is_ar934x(as)) {
696 vlan1 = (vid << AR934X_PORT_VLAN1_DEFAULT_CVID_S);
697 vlan2 = (portmask << AR934X_PORT_VLAN2_PORT_VID_MEM_S) |
698 (mode << AR934X_PORT_VLAN2_8021Q_MODE_S);
699 ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN1(port), vlan1);
700 ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN2(port), vlan2);
704 vlan = vid | (mode << AR7240_PORT_VLAN_MODE_S) |
705 (portmask << AR7240_PORT_VLAN_DEST_PORTS_S);
707 ar7240sw_reg_write(mii, AR7240_REG_PORT_VLAN(port), vlan);
711 static int ar7240_set_addr(struct ar7240sw *as, u8 *addr)
713 struct mii_bus *mii = as->mii_bus;
716 t = (addr[4] << 8) | addr[5];
717 ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR0, t);
719 t = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
720 ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR1, t);
726 ar7240_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
727 struct switch_val *val)
729 struct ar7240sw *as = sw_to_ar7240(dev);
730 as->vlan_id[val->port_vlan] = val->value.i;
735 ar7240_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
736 struct switch_val *val)
738 struct ar7240sw *as = sw_to_ar7240(dev);
739 val->value.i = as->vlan_id[val->port_vlan];
744 ar7240_set_pvid(struct switch_dev *dev, int port, int vlan)
746 struct ar7240sw *as = sw_to_ar7240(dev);
748 /* make sure no invalid PVIDs get set */
750 if (vlan >= dev->vlans)
753 as->pvid[port] = vlan;
758 ar7240_get_pvid(struct switch_dev *dev, int port, int *vlan)
760 struct ar7240sw *as = sw_to_ar7240(dev);
761 *vlan = as->pvid[port];
766 ar7240_get_ports(struct switch_dev *dev, struct switch_val *val)
768 struct ar7240sw *as = sw_to_ar7240(dev);
769 u8 ports = as->vlan_table[val->port_vlan];
773 for (i = 0; i < as->swdev.ports; i++) {
774 struct switch_port *p;
776 if (!(ports & (1 << i)))
779 p = &val->value.ports[val->len++];
781 if (as->vlan_tagged & (1 << i))
782 p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
790 ar7240_set_ports(struct switch_dev *dev, struct switch_val *val)
792 struct ar7240sw *as = sw_to_ar7240(dev);
793 u8 *vt = &as->vlan_table[val->port_vlan];
797 for (i = 0; i < val->len; i++) {
798 struct switch_port *p = &val->value.ports[i];
800 if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
801 as->vlan_tagged |= (1 << p->id);
803 as->vlan_tagged &= ~(1 << p->id);
804 as->pvid[p->id] = val->port_vlan;
806 /* make sure that an untagged port does not
807 * appear in other vlans */
808 for (j = 0; j < AR7240_MAX_VLANS; j++) {
809 if (j == val->port_vlan)
811 as->vlan_table[j] &= ~(1 << p->id);
821 ar7240_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
822 struct switch_val *val)
824 struct ar7240sw *as = sw_to_ar7240(dev);
825 as->vlan = !!val->value.i;
830 ar7240_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
831 struct switch_val *val)
833 struct ar7240sw *as = sw_to_ar7240(dev);
834 val->value.i = as->vlan;
839 ar7240_vtu_op(struct ar7240sw *as, u32 op, u32 val)
841 struct mii_bus *mii = as->mii_bus;
843 if (ar7240sw_reg_wait(mii, AR7240_REG_VTU, AR7240_VTU_ACTIVE, 0, 5))
846 if ((op & AR7240_VTU_OP) == AR7240_VTU_OP_LOAD) {
847 val &= AR7240_VTUDATA_MEMBER;
848 val |= AR7240_VTUDATA_VALID;
849 ar7240sw_reg_write(mii, AR7240_REG_VTU_DATA, val);
851 op |= AR7240_VTU_ACTIVE;
852 ar7240sw_reg_write(mii, AR7240_REG_VTU, op);
856 ar7240_hw_apply(struct switch_dev *dev)
858 struct ar7240sw *as = sw_to_ar7240(dev);
859 u8 portmask[AR7240_NUM_PORTS];
862 /* flush all vlan translation unit entries */
863 ar7240_vtu_op(as, AR7240_VTU_OP_FLUSH, 0);
865 memset(portmask, 0, sizeof(portmask));
867 /* calculate the port destination masks and load vlans
868 * into the vlan translation unit */
869 for (j = 0; j < AR7240_MAX_VLANS; j++) {
870 u8 vp = as->vlan_table[j];
875 for (i = 0; i < as->swdev.ports; i++) {
878 portmask[i] |= vp & ~mask;
883 (as->vlan_id[j] << AR7240_VTU_VID_S),
888 * isolate all ports, but connect them to the cpu port */
889 for (i = 0; i < as->swdev.ports; i++) {
890 if (i == AR7240_PORT_CPU)
893 portmask[i] = 1 << AR7240_PORT_CPU;
894 portmask[AR7240_PORT_CPU] |= (1 << i);
898 /* update the port destination mask registers and tag settings */
899 for (i = 0; i < as->swdev.ports; i++)
900 ar7240sw_setup_port(as, i, portmask[i]);
906 ar7240_reset_switch(struct switch_dev *dev)
908 struct ar7240sw *as = sw_to_ar7240(dev);
914 ar7240_get_port_link(struct switch_dev *dev, int port,
915 struct switch_port_link *link)
917 struct ar7240sw *as = sw_to_ar7240(dev);
918 struct mii_bus *mii = as->mii_bus;
921 if (port > AR7240_NUM_PORTS)
924 status = ar7240sw_reg_read(mii, AR7240_REG_PORT_STATUS(port));
925 link->aneg = !!(status & AR7240_PORT_STATUS_LINK_AUTO);
927 link->link = !!(status & AR7240_PORT_STATUS_LINK_UP);
934 link->duplex = !!(status & AR7240_PORT_STATUS_DUPLEX);
935 link->tx_flow = !!(status & AR7240_PORT_STATUS_TXFLOW);
936 link->rx_flow = !!(status & AR7240_PORT_STATUS_RXFLOW);
937 switch (status & AR7240_PORT_STATUS_SPEED_M) {
938 case AR7240_PORT_STATUS_SPEED_10:
939 link->speed = SWITCH_PORT_SPEED_10;
941 case AR7240_PORT_STATUS_SPEED_100:
942 link->speed = SWITCH_PORT_SPEED_100;
944 case AR7240_PORT_STATUS_SPEED_1000:
945 link->speed = SWITCH_PORT_SPEED_1000;
953 ar7240_get_port_stats(struct switch_dev *dev, int port,
954 struct switch_port_stats *stats)
956 struct ar7240sw *as = sw_to_ar7240(dev);
958 if (port > AR7240_NUM_PORTS)
961 ar7240sw_capture_stats(as);
963 read_lock(&as->stats_lock);
964 stats->rx_bytes = as->port_stats[port].rx_good_byte;
965 stats->tx_bytes = as->port_stats[port].tx_byte;
966 read_unlock(&as->stats_lock);
971 static struct switch_attr ar7240_globals[] = {
973 .type = SWITCH_TYPE_INT,
974 .name = "enable_vlan",
975 .description = "Enable VLAN mode",
976 .set = ar7240_set_vlan,
977 .get = ar7240_get_vlan,
982 static struct switch_attr ar7240_port[] = {
985 static struct switch_attr ar7240_vlan[] = {
987 .type = SWITCH_TYPE_INT,
989 .description = "VLAN ID",
990 .set = ar7240_set_vid,
991 .get = ar7240_get_vid,
996 static const struct switch_dev_ops ar7240_ops = {
998 .attr = ar7240_globals,
999 .n_attr = ARRAY_SIZE(ar7240_globals),
1002 .attr = ar7240_port,
1003 .n_attr = ARRAY_SIZE(ar7240_port),
1006 .attr = ar7240_vlan,
1007 .n_attr = ARRAY_SIZE(ar7240_vlan),
1009 .get_port_pvid = ar7240_get_pvid,
1010 .set_port_pvid = ar7240_set_pvid,
1011 .get_vlan_ports = ar7240_get_ports,
1012 .set_vlan_ports = ar7240_set_ports,
1013 .apply_config = ar7240_hw_apply,
1014 .reset_switch = ar7240_reset_switch,
1015 .get_port_link = ar7240_get_port_link,
1016 .get_port_stats = ar7240_get_port_stats,
1019 static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
1021 struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
1022 struct mii_bus *mii = ag->mii_bus;
1023 struct ar7240sw *as;
1024 struct switch_dev *swdev;
1030 phy_id1 = ar7240sw_phy_read(mii, 0, MII_PHYSID1);
1031 phy_id2 = ar7240sw_phy_read(mii, 0, MII_PHYSID2);
1032 if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) &&
1033 (phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) {
1034 pr_err("%s: unknown phy id '%04x:%04x'\n",
1035 ag->dev->name, phy_id1, phy_id2);
1039 as = kzalloc(sizeof(*as), GFP_KERNEL);
1044 as->swdata = pdata->switch_data;
1048 ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL);
1049 as->ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) &
1050 AR7240_MASK_CTRL_VERSION_M;
1052 if (sw_is_ar7240(as)) {
1053 swdev->name = "AR7240/AR9330 built-in switch";
1054 swdev->ports = AR7240_NUM_PORTS - 1;
1055 } else if (sw_is_ar934x(as)) {
1056 swdev->name = "AR934X built-in switch";
1058 if (pdata->phy_if_mode == PHY_INTERFACE_MODE_GMII) {
1059 ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0,
1060 AR934X_OPER_MODE0_MAC_GMII_EN);
1061 } else if (pdata->phy_if_mode == PHY_INTERFACE_MODE_MII) {
1062 ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0,
1063 AR934X_OPER_MODE0_PHY_MII_EN);
1065 pr_err("%s: invalid PHY interface mode\n",
1070 if (as->swdata->phy4_mii_en) {
1071 ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE1,
1072 AR934X_REG_OPER_MODE1_PHY4_MII_EN);
1073 swdev->ports = AR7240_NUM_PORTS - 1;
1075 swdev->ports = AR7240_NUM_PORTS;
1078 pr_err("%s: unsupported chip, ctrl=%08x\n",
1079 ag->dev->name, ctrl);
1083 swdev->cpu_port = AR7240_PORT_CPU;
1084 swdev->vlans = AR7240_MAX_VLANS;
1085 swdev->ops = &ar7240_ops;
1087 if (register_switch(&as->swdev, ag->dev) < 0)
1090 pr_info("%s: Found an %s\n", ag->dev->name, swdev->name);
1092 /* initialize defaults */
1093 for (i = 0; i < AR7240_MAX_VLANS; i++)
1096 as->vlan_table[0] = ar7240sw_port_mask_all(as);
1105 static void link_function(struct work_struct *work) {
1106 struct ag71xx *ag = container_of(work, struct ag71xx, link_work.work);
1107 struct ar7240sw *as = ag->phy_priv;
1108 unsigned long flags;
1112 for (i = 0; i < as->swdev.ports; i++) {
1113 int link = ar7240sw_phy_read(ag->mii_bus, i, MII_BMSR);
1114 if(link & BMSR_LSTATUS) {
1120 spin_lock_irqsave(&ag->lock, flags);
1121 if(status != ag->link) {
1123 ag71xx_link_adjust(ag);
1125 spin_unlock_irqrestore(&ag->lock, flags);
1127 schedule_delayed_work(&ag->link_work, HZ / 2);
1130 void ag71xx_ar7240_start(struct ag71xx *ag)
1132 struct ar7240sw *as = ag->phy_priv;
1136 ag->speed = SPEED_1000;
1139 ar7240_set_addr(as, ag->dev->dev_addr);
1140 ar7240_hw_apply(&as->swdev);
1142 schedule_delayed_work(&ag->link_work, HZ / 10);
1145 void ag71xx_ar7240_stop(struct ag71xx *ag)
1147 cancel_delayed_work_sync(&ag->link_work);
1150 int __devinit ag71xx_ar7240_init(struct ag71xx *ag)
1152 struct ar7240sw *as;
1154 as = ar7240_probe(ag);
1161 rwlock_init(&as->stats_lock);
1162 INIT_DELAYED_WORK(&ag->link_work, link_function);
1167 void ag71xx_ar7240_cleanup(struct ag71xx *ag)
1169 struct ar7240sw *as = ag->phy_priv;
1174 unregister_switch(&as->swdev);
1176 ag->phy_priv = NULL;