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(11)
40 #define AR9340_GLOBAL_CTRL_MTU_M BITM(14)
42 #define AR7240_REG_VTU 0x0040
43 #define AR7240_VTU_OP BITM(3)
44 #define AR7240_VTU_OP_NOOP 0x0
45 #define AR7240_VTU_OP_FLUSH 0x1
46 #define AR7240_VTU_OP_LOAD 0x2
47 #define AR7240_VTU_OP_PURGE 0x3
48 #define AR7240_VTU_OP_REMOVE_PORT 0x4
49 #define AR7240_VTU_ACTIVE BIT(3)
50 #define AR7240_VTU_FULL BIT(4)
51 #define AR7240_VTU_PORT BITS(8, 4)
52 #define AR7240_VTU_PORT_S 8
53 #define AR7240_VTU_VID BITS(16, 12)
54 #define AR7240_VTU_VID_S 16
55 #define AR7240_VTU_PRIO BITS(28, 3)
56 #define AR7240_VTU_PRIO_S 28
57 #define AR7240_VTU_PRIO_EN BIT(31)
59 #define AR7240_REG_VTU_DATA 0x0044
60 #define AR7240_VTUDATA_MEMBER BITS(0, 10)
61 #define AR7240_VTUDATA_VALID BIT(11)
63 #define AR7240_REG_ATU 0x50
64 #define AR7240_ATU_FLUSH_ALL 0x1
66 #define AR7240_REG_AT_CTRL 0x5c
67 #define AR7240_AT_CTRL_AGE_TIME BITS(0, 15)
68 #define AR7240_AT_CTRL_AGE_EN BIT(17)
69 #define AR7240_AT_CTRL_LEARN_CHANGE BIT(18)
70 #define AR7240_AT_CTRL_RESERVED BIT(19)
71 #define AR7240_AT_CTRL_ARP_EN BIT(20)
73 #define AR7240_REG_TAG_PRIORITY 0x70
75 #define AR7240_REG_SERVICE_TAG 0x74
76 #define AR7240_SERVICE_TAG_M BITM(16)
78 #define AR7240_REG_CPU_PORT 0x78
79 #define AR7240_MIRROR_PORT_S 4
80 #define AR7240_CPU_PORT_EN BIT(8)
82 #define AR7240_REG_MIB_FUNCTION0 0x80
83 #define AR7240_MIB_TIMER_M BITM(16)
84 #define AR7240_MIB_AT_HALF_EN BIT(16)
85 #define AR7240_MIB_BUSY BIT(17)
86 #define AR7240_MIB_FUNC_S 24
87 #define AR7240_MIB_FUNC_M BITM(3)
88 #define AR7240_MIB_FUNC_NO_OP 0x0
89 #define AR7240_MIB_FUNC_FLUSH 0x1
90 #define AR7240_MIB_FUNC_CAPTURE 0x3
92 #define AR7240_REG_MDIO_CTRL 0x98
93 #define AR7240_MDIO_CTRL_DATA_M BITM(16)
94 #define AR7240_MDIO_CTRL_REG_ADDR_S 16
95 #define AR7240_MDIO_CTRL_PHY_ADDR_S 21
96 #define AR7240_MDIO_CTRL_CMD_WRITE 0
97 #define AR7240_MDIO_CTRL_CMD_READ BIT(27)
98 #define AR7240_MDIO_CTRL_MASTER_EN BIT(30)
99 #define AR7240_MDIO_CTRL_BUSY BIT(31)
101 #define AR7240_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100)
103 #define AR7240_REG_PORT_STATUS(_port) (AR7240_REG_PORT_BASE((_port)) + 0x00)
104 #define AR7240_PORT_STATUS_SPEED_S 0
105 #define AR7240_PORT_STATUS_SPEED_M BITM(2)
106 #define AR7240_PORT_STATUS_SPEED_10 0
107 #define AR7240_PORT_STATUS_SPEED_100 1
108 #define AR7240_PORT_STATUS_SPEED_1000 2
109 #define AR7240_PORT_STATUS_TXMAC BIT(2)
110 #define AR7240_PORT_STATUS_RXMAC BIT(3)
111 #define AR7240_PORT_STATUS_TXFLOW BIT(4)
112 #define AR7240_PORT_STATUS_RXFLOW BIT(5)
113 #define AR7240_PORT_STATUS_DUPLEX BIT(6)
114 #define AR7240_PORT_STATUS_LINK_UP BIT(8)
115 #define AR7240_PORT_STATUS_LINK_AUTO BIT(9)
116 #define AR7240_PORT_STATUS_LINK_PAUSE BIT(10)
118 #define AR7240_REG_PORT_CTRL(_port) (AR7240_REG_PORT_BASE((_port)) + 0x04)
119 #define AR7240_PORT_CTRL_STATE_M BITM(3)
120 #define AR7240_PORT_CTRL_STATE_DISABLED 0
121 #define AR7240_PORT_CTRL_STATE_BLOCK 1
122 #define AR7240_PORT_CTRL_STATE_LISTEN 2
123 #define AR7240_PORT_CTRL_STATE_LEARN 3
124 #define AR7240_PORT_CTRL_STATE_FORWARD 4
125 #define AR7240_PORT_CTRL_LEARN_LOCK BIT(7)
126 #define AR7240_PORT_CTRL_VLAN_MODE_S 8
127 #define AR7240_PORT_CTRL_VLAN_MODE_KEEP 0
128 #define AR7240_PORT_CTRL_VLAN_MODE_STRIP 1
129 #define AR7240_PORT_CTRL_VLAN_MODE_ADD 2
130 #define AR7240_PORT_CTRL_VLAN_MODE_DOUBLE_TAG 3
131 #define AR7240_PORT_CTRL_IGMP_SNOOP BIT(10)
132 #define AR7240_PORT_CTRL_HEADER BIT(11)
133 #define AR7240_PORT_CTRL_MAC_LOOP BIT(12)
134 #define AR7240_PORT_CTRL_SINGLE_VLAN BIT(13)
135 #define AR7240_PORT_CTRL_LEARN BIT(14)
136 #define AR7240_PORT_CTRL_DOUBLE_TAG BIT(15)
137 #define AR7240_PORT_CTRL_MIRROR_TX BIT(16)
138 #define AR7240_PORT_CTRL_MIRROR_RX BIT(17)
140 #define AR7240_REG_PORT_VLAN(_port) (AR7240_REG_PORT_BASE((_port)) + 0x08)
142 #define AR7240_PORT_VLAN_DEFAULT_ID_S 0
143 #define AR7240_PORT_VLAN_DEST_PORTS_S 16
144 #define AR7240_PORT_VLAN_MODE_S 30
145 #define AR7240_PORT_VLAN_MODE_PORT_ONLY 0
146 #define AR7240_PORT_VLAN_MODE_PORT_FALLBACK 1
147 #define AR7240_PORT_VLAN_MODE_VLAN_ONLY 2
148 #define AR7240_PORT_VLAN_MODE_SECURE 3
151 #define AR7240_REG_STATS_BASE(_port) (0x20000 + (_port) * 0x100)
153 #define AR7240_STATS_RXBROAD 0x00
154 #define AR7240_STATS_RXPAUSE 0x04
155 #define AR7240_STATS_RXMULTI 0x08
156 #define AR7240_STATS_RXFCSERR 0x0c
157 #define AR7240_STATS_RXALIGNERR 0x10
158 #define AR7240_STATS_RXRUNT 0x14
159 #define AR7240_STATS_RXFRAGMENT 0x18
160 #define AR7240_STATS_RX64BYTE 0x1c
161 #define AR7240_STATS_RX128BYTE 0x20
162 #define AR7240_STATS_RX256BYTE 0x24
163 #define AR7240_STATS_RX512BYTE 0x28
164 #define AR7240_STATS_RX1024BYTE 0x2c
165 #define AR7240_STATS_RX1518BYTE 0x30
166 #define AR7240_STATS_RXMAXBYTE 0x34
167 #define AR7240_STATS_RXTOOLONG 0x38
168 #define AR7240_STATS_RXGOODBYTE 0x3c
169 #define AR7240_STATS_RXBADBYTE 0x44
170 #define AR7240_STATS_RXOVERFLOW 0x4c
171 #define AR7240_STATS_FILTERED 0x50
172 #define AR7240_STATS_TXBROAD 0x54
173 #define AR7240_STATS_TXPAUSE 0x58
174 #define AR7240_STATS_TXMULTI 0x5c
175 #define AR7240_STATS_TXUNDERRUN 0x60
176 #define AR7240_STATS_TX64BYTE 0x64
177 #define AR7240_STATS_TX128BYTE 0x68
178 #define AR7240_STATS_TX256BYTE 0x6c
179 #define AR7240_STATS_TX512BYTE 0x70
180 #define AR7240_STATS_TX1024BYTE 0x74
181 #define AR7240_STATS_TX1518BYTE 0x78
182 #define AR7240_STATS_TXMAXBYTE 0x7c
183 #define AR7240_STATS_TXOVERSIZE 0x80
184 #define AR7240_STATS_TXBYTE 0x84
185 #define AR7240_STATS_TXCOLLISION 0x8c
186 #define AR7240_STATS_TXABORTCOL 0x90
187 #define AR7240_STATS_TXMULTICOL 0x94
188 #define AR7240_STATS_TXSINGLECOL 0x98
189 #define AR7240_STATS_TXEXCDEFER 0x9c
190 #define AR7240_STATS_TXDEFER 0xa0
191 #define AR7240_STATS_TXLATECOL 0xa4
193 #define AR7240_PORT_CPU 0
194 #define AR7240_NUM_PORTS 6
195 #define AR7240_NUM_PHYS 5
197 #define AR7240_PHY_ID1 0x004d
198 #define AR7240_PHY_ID2 0xd041
200 #define AR934X_PHY_ID1 0x004d
201 #define AR934X_PHY_ID2 0xd042
203 #define AR7240_MAX_VLANS 16
205 #define AR934X_REG_OPER_MODE0 0x04
206 #define AR934X_OPER_MODE0_MAC_GMII_EN BIT(6)
207 #define AR934X_OPER_MODE0_PHY_MII_EN BIT(10)
209 #define AR934X_REG_OPER_MODE1 0x08
210 #define AR934X_REG_OPER_MODE1_PHY4_MII_EN BIT(28)
212 #define AR934X_REG_FLOOD_MASK 0x2c
213 #define AR934X_FLOOD_MASK_MC_DP(_p) BIT(16 + (_p))
214 #define AR934X_FLOOD_MASK_BC_DP(_p) BIT(25 + (_p))
216 #define AR934X_REG_QM_CTRL 0x3c
217 #define AR934X_QM_CTRL_ARP_EN BIT(15)
219 #define AR934X_REG_AT_CTRL 0x5c
220 #define AR934X_AT_CTRL_AGE_TIME BITS(0, 15)
221 #define AR934X_AT_CTRL_AGE_EN BIT(17)
222 #define AR934X_AT_CTRL_LEARN_CHANGE BIT(18)
224 #define AR934X_MIB_ENABLE BIT(30)
226 #define AR934X_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100)
228 #define AR934X_REG_PORT_VLAN1(_port) (AR934X_REG_PORT_BASE((_port)) + 0x08)
229 #define AR934X_PORT_VLAN1_DEFAULT_SVID_S 0
230 #define AR934X_PORT_VLAN1_FORCE_DEFAULT_VID_EN BIT(12)
231 #define AR934X_PORT_VLAN1_PORT_TLS_MODE BIT(13)
232 #define AR934X_PORT_VLAN1_PORT_VLAN_PROP_EN BIT(14)
233 #define AR934X_PORT_VLAN1_PORT_CLONE_EN BIT(15)
234 #define AR934X_PORT_VLAN1_DEFAULT_CVID_S 16
235 #define AR934X_PORT_VLAN1_FORCE_PORT_VLAN_EN BIT(28)
236 #define AR934X_PORT_VLAN1_ING_PORT_PRI_S 29
238 #define AR934X_REG_PORT_VLAN2(_port) (AR934X_REG_PORT_BASE((_port)) + 0x0c)
239 #define AR934X_PORT_VLAN2_PORT_VID_MEM_S 16
240 #define AR934X_PORT_VLAN2_8021Q_MODE_S 30
241 #define AR934X_PORT_VLAN2_8021Q_MODE_PORT_ONLY 0
242 #define AR934X_PORT_VLAN2_8021Q_MODE_PORT_FALLBACK 1
243 #define AR934X_PORT_VLAN2_8021Q_MODE_VLAN_ONLY 2
244 #define AR934X_PORT_VLAN2_8021Q_MODE_SECURE 3
246 #define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev)
248 struct ar7240sw_port_stat
{
249 unsigned long rx_broadcast
;
250 unsigned long rx_pause
;
251 unsigned long rx_multicast
;
252 unsigned long rx_fcs_error
;
253 unsigned long rx_align_error
;
254 unsigned long rx_runt
;
255 unsigned long rx_fragments
;
256 unsigned long rx_64byte
;
257 unsigned long rx_128byte
;
258 unsigned long rx_256byte
;
259 unsigned long rx_512byte
;
260 unsigned long rx_1024byte
;
261 unsigned long rx_1518byte
;
262 unsigned long rx_maxbyte
;
263 unsigned long rx_toolong
;
264 unsigned long rx_good_byte
;
265 unsigned long rx_bad_byte
;
266 unsigned long rx_overflow
;
267 unsigned long filtered
;
269 unsigned long tx_broadcast
;
270 unsigned long tx_pause
;
271 unsigned long tx_multicast
;
272 unsigned long tx_underrun
;
273 unsigned long tx_64byte
;
274 unsigned long tx_128byte
;
275 unsigned long tx_256byte
;
276 unsigned long tx_512byte
;
277 unsigned long tx_1024byte
;
278 unsigned long tx_1518byte
;
279 unsigned long tx_maxbyte
;
280 unsigned long tx_oversize
;
281 unsigned long tx_byte
;
282 unsigned long tx_collision
;
283 unsigned long tx_abortcol
;
284 unsigned long tx_multicol
;
285 unsigned long tx_singlecol
;
286 unsigned long tx_excdefer
;
287 unsigned long tx_defer
;
288 unsigned long tx_xlatecol
;
292 struct mii_bus
*mii_bus
;
293 struct ag71xx_switch_platform_data
*swdata
;
294 struct switch_dev swdev
;
298 u16 vlan_id
[AR7240_MAX_VLANS
];
299 u8 vlan_table
[AR7240_MAX_VLANS
];
301 u16 pvid
[AR7240_NUM_PORTS
];
305 struct ar7240sw_port_stat port_stats
[AR7240_NUM_PORTS
];
308 struct ar7240sw_hw_stat
{
309 char string
[ETH_GSTRING_LEN
];
314 static DEFINE_MUTEX(reg_mutex
);
316 static inline int sw_is_ar7240(struct ar7240sw
*as
)
318 return as
->ver
== AR7240_MASK_CTRL_VERSION_AR7240
;
321 static inline int sw_is_ar934x(struct ar7240sw
*as
)
323 return as
->ver
== AR7240_MASK_CTRL_VERSION_AR934X
;
326 static inline u32
ar7240sw_port_mask(struct ar7240sw
*as
, int port
)
331 static inline u32
ar7240sw_port_mask_all(struct ar7240sw
*as
)
333 return BIT(as
->swdev
.ports
) - 1;
336 static inline u32
ar7240sw_port_mask_but(struct ar7240sw
*as
, int port
)
338 return ar7240sw_port_mask_all(as
) & ~BIT(port
);
341 static inline u16
mk_phy_addr(u32 reg
)
343 return 0x17 & ((reg
>> 4) | 0x10);
346 static inline u16
mk_phy_reg(u32 reg
)
348 return (reg
<< 1) & 0x1e;
351 static inline u16
mk_high_addr(u32 reg
)
353 return (reg
>> 7) & 0x1ff;
356 static u32
__ar7240sw_reg_read(struct mii_bus
*mii
, u32 reg
)
363 reg
= (reg
& 0xfffffffc) >> 2;
364 phy_addr
= mk_phy_addr(reg
);
365 phy_reg
= mk_phy_reg(reg
);
367 local_irq_save(flags
);
368 ag71xx_mdio_mii_write(mii
->priv
, 0x1f, 0x10, mk_high_addr(reg
));
369 lo
= (u32
) ag71xx_mdio_mii_read(mii
->priv
, phy_addr
, phy_reg
);
370 hi
= (u32
) ag71xx_mdio_mii_read(mii
->priv
, phy_addr
, phy_reg
+ 1);
371 local_irq_restore(flags
);
373 return (hi
<< 16) | lo
;
376 static void __ar7240sw_reg_write(struct mii_bus
*mii
, u32 reg
, u32 val
)
382 reg
= (reg
& 0xfffffffc) >> 2;
383 phy_addr
= mk_phy_addr(reg
);
384 phy_reg
= mk_phy_reg(reg
);
386 local_irq_save(flags
);
387 ag71xx_mdio_mii_write(mii
->priv
, 0x1f, 0x10, mk_high_addr(reg
));
388 ag71xx_mdio_mii_write(mii
->priv
, phy_addr
, phy_reg
+ 1, (val
>> 16));
389 ag71xx_mdio_mii_write(mii
->priv
, phy_addr
, phy_reg
, (val
& 0xffff));
390 local_irq_restore(flags
);
393 static u32
ar7240sw_reg_read(struct mii_bus
*mii
, u32 reg_addr
)
397 mutex_lock(®_mutex
);
398 ret
= __ar7240sw_reg_read(mii
, reg_addr
);
399 mutex_unlock(®_mutex
);
404 static void ar7240sw_reg_write(struct mii_bus
*mii
, u32 reg_addr
, u32 reg_val
)
406 mutex_lock(®_mutex
);
407 __ar7240sw_reg_write(mii
, reg_addr
, reg_val
);
408 mutex_unlock(®_mutex
);
411 static u32
ar7240sw_reg_rmw(struct mii_bus
*mii
, u32 reg
, u32 mask
, u32 val
)
415 mutex_lock(®_mutex
);
416 t
= __ar7240sw_reg_read(mii
, reg
);
419 __ar7240sw_reg_write(mii
, reg
, t
);
420 mutex_unlock(®_mutex
);
425 static void ar7240sw_reg_set(struct mii_bus
*mii
, u32 reg
, u32 val
)
429 mutex_lock(®_mutex
);
430 t
= __ar7240sw_reg_read(mii
, reg
);
432 __ar7240sw_reg_write(mii
, reg
, t
);
433 mutex_unlock(®_mutex
);
436 static int __ar7240sw_reg_wait(struct mii_bus
*mii
, u32 reg
, u32 mask
, u32 val
,
441 for (i
= 0; i
< timeout
; i
++) {
444 t
= __ar7240sw_reg_read(mii
, reg
);
445 if ((t
& mask
) == val
)
454 static int ar7240sw_reg_wait(struct mii_bus
*mii
, u32 reg
, u32 mask
, u32 val
,
459 mutex_lock(®_mutex
);
460 ret
= __ar7240sw_reg_wait(mii
, reg
, mask
, val
, timeout
);
461 mutex_unlock(®_mutex
);
465 u16
ar7240sw_phy_read(struct mii_bus
*mii
, unsigned phy_addr
,
471 if (phy_addr
>= AR7240_NUM_PHYS
)
474 mutex_lock(®_mutex
);
475 t
= (reg_addr
<< AR7240_MDIO_CTRL_REG_ADDR_S
) |
476 (phy_addr
<< AR7240_MDIO_CTRL_PHY_ADDR_S
) |
477 AR7240_MDIO_CTRL_MASTER_EN
|
478 AR7240_MDIO_CTRL_BUSY
|
479 AR7240_MDIO_CTRL_CMD_READ
;
481 __ar7240sw_reg_write(mii
, AR7240_REG_MDIO_CTRL
, t
);
482 err
= __ar7240sw_reg_wait(mii
, AR7240_REG_MDIO_CTRL
,
483 AR7240_MDIO_CTRL_BUSY
, 0, 5);
485 val
= __ar7240sw_reg_read(mii
, AR7240_REG_MDIO_CTRL
);
486 mutex_unlock(®_mutex
);
488 return val
& AR7240_MDIO_CTRL_DATA_M
;
491 int ar7240sw_phy_write(struct mii_bus
*mii
, unsigned phy_addr
,
492 unsigned reg_addr
, u16 reg_val
)
497 if (phy_addr
>= AR7240_NUM_PHYS
)
500 mutex_lock(®_mutex
);
501 t
= (phy_addr
<< AR7240_MDIO_CTRL_PHY_ADDR_S
) |
502 (reg_addr
<< AR7240_MDIO_CTRL_REG_ADDR_S
) |
503 AR7240_MDIO_CTRL_MASTER_EN
|
504 AR7240_MDIO_CTRL_BUSY
|
505 AR7240_MDIO_CTRL_CMD_WRITE
|
508 __ar7240sw_reg_write(mii
, AR7240_REG_MDIO_CTRL
, t
);
509 ret
= __ar7240sw_reg_wait(mii
, AR7240_REG_MDIO_CTRL
,
510 AR7240_MDIO_CTRL_BUSY
, 0, 5);
511 mutex_unlock(®_mutex
);
516 static int ar7240sw_capture_stats(struct ar7240sw
*as
)
518 struct mii_bus
*mii
= as
->mii_bus
;
522 write_lock(&as
->stats_lock
);
524 /* Capture the hardware statistics for all ports */
525 ar7240sw_reg_rmw(mii
, AR7240_REG_MIB_FUNCTION0
,
526 (AR7240_MIB_FUNC_M
<< AR7240_MIB_FUNC_S
),
527 (AR7240_MIB_FUNC_CAPTURE
<< AR7240_MIB_FUNC_S
));
529 /* Wait for the capturing to complete. */
530 ret
= ar7240sw_reg_wait(mii
, AR7240_REG_MIB_FUNCTION0
,
531 AR7240_MIB_BUSY
, 0, 10);
536 for (port
= 0; port
< AR7240_NUM_PORTS
; port
++) {
538 struct ar7240sw_port_stat
*stats
;
540 base
= AR7240_REG_STATS_BASE(port
);
541 stats
= &as
->port_stats
[port
];
543 #define READ_STAT(_r) ar7240sw_reg_read(mii, base + AR7240_STATS_ ## _r)
545 stats
->rx_good_byte
+= READ_STAT(RXGOODBYTE
);
546 stats
->tx_byte
+= READ_STAT(TXBYTE
);
554 write_unlock(&as
->stats_lock
);
558 static void ar7240sw_disable_port(struct ar7240sw
*as
, unsigned port
)
560 ar7240sw_reg_write(as
->mii_bus
, AR7240_REG_PORT_CTRL(port
),
561 AR7240_PORT_CTRL_STATE_DISABLED
);
564 static void ar7240sw_setup(struct ar7240sw
*as
)
566 struct mii_bus
*mii
= as
->mii_bus
;
568 /* Enable CPU port, and disable mirror port */
569 ar7240sw_reg_write(mii
, AR7240_REG_CPU_PORT
,
571 (15 << AR7240_MIRROR_PORT_S
));
573 /* Setup TAG priority mapping */
574 ar7240sw_reg_write(mii
, AR7240_REG_TAG_PRIORITY
, 0xfa50);
576 if (sw_is_ar934x(as
)) {
577 /* Enable aging, MAC replacing */
578 ar7240sw_reg_write(mii
, AR934X_REG_AT_CTRL
,
579 0x2b /* 5 min age time */ |
580 AR934X_AT_CTRL_AGE_EN
|
581 AR934X_AT_CTRL_LEARN_CHANGE
);
582 /* Enable ARP frame acknowledge */
583 ar7240sw_reg_set(mii
, AR934X_REG_QM_CTRL
,
584 AR934X_QM_CTRL_ARP_EN
);
585 /* Enable Broadcast/Multicast frames transmitted to the CPU */
586 ar7240sw_reg_set(mii
, AR934X_REG_FLOOD_MASK
,
587 AR934X_FLOOD_MASK_BC_DP(0) |
588 AR934X_FLOOD_MASK_MC_DP(0));
591 ar7240sw_reg_rmw(mii
, AR7240_REG_GLOBAL_CTRL
,
592 AR9340_GLOBAL_CTRL_MTU_M
,
593 AR9340_GLOBAL_CTRL_MTU_M
);
595 /* Enable MIB counters */
596 ar7240sw_reg_set(mii
, AR7240_REG_MIB_FUNCTION0
,
600 /* Enable ARP frame acknowledge, aging, MAC replacing */
601 ar7240sw_reg_write(mii
, AR7240_REG_AT_CTRL
,
602 AR7240_AT_CTRL_RESERVED
|
603 0x2b /* 5 min age time */ |
604 AR7240_AT_CTRL_AGE_EN
|
605 AR7240_AT_CTRL_ARP_EN
|
606 AR7240_AT_CTRL_LEARN_CHANGE
);
607 /* Enable Broadcast frames transmitted to the CPU */
608 ar7240sw_reg_set(mii
, AR7240_REG_FLOOD_MASK
,
609 AR7240_FLOOD_MASK_BROAD_TO_CPU
);
612 ar7240sw_reg_rmw(mii
, AR7240_REG_GLOBAL_CTRL
,
613 AR7240_GLOBAL_CTRL_MTU_M
,
614 AR7240_GLOBAL_CTRL_MTU_M
);
617 /* setup Service TAG */
618 ar7240sw_reg_rmw(mii
, AR7240_REG_SERVICE_TAG
, AR7240_SERVICE_TAG_M
, 0);
621 /* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */
623 ar7240sw_phy_poll_reset(struct mii_bus
*bus
)
625 const unsigned int sleep_msecs
= 20;
628 for (elapsed
= sleep_msecs
; elapsed
<= 600;
629 elapsed
+= sleep_msecs
) {
631 for (i
= 0; i
< AR7240_NUM_PHYS
; i
++) {
632 ret
= ar7240sw_phy_read(bus
, i
, MII_BMCR
);
635 if (ret
& BMCR_RESET
)
637 if (i
== AR7240_NUM_PHYS
- 1) {
638 usleep_range(1000, 2000);
646 static int ar7240sw_reset(struct ar7240sw
*as
)
648 struct mii_bus
*mii
= as
->mii_bus
;
652 /* Set all ports to disabled state. */
653 for (i
= 0; i
< AR7240_NUM_PORTS
; i
++)
654 ar7240sw_disable_port(as
, i
);
656 /* Wait for transmit queues to drain. */
659 /* Reset the switch. */
660 ar7240sw_reg_write(mii
, AR7240_REG_MASK_CTRL
,
661 AR7240_MASK_CTRL_SOFT_RESET
);
663 ret
= ar7240sw_reg_wait(mii
, AR7240_REG_MASK_CTRL
,
664 AR7240_MASK_CTRL_SOFT_RESET
, 0, 1000);
667 for (i
= 0; i
< AR7240_NUM_PHYS
; i
++) {
668 ar7240sw_phy_write(mii
, i
, MII_ADVERTISE
,
669 ADVERTISE_ALL
| ADVERTISE_PAUSE_CAP
|
670 ADVERTISE_PAUSE_ASYM
);
671 ar7240sw_phy_write(mii
, i
, MII_BMCR
,
672 BMCR_RESET
| BMCR_ANENABLE
);
674 ret
= ar7240sw_phy_poll_reset(mii
);
682 static void ar7240sw_setup_port(struct ar7240sw
*as
, unsigned port
, u8 portmask
)
684 struct mii_bus
*mii
= as
->mii_bus
;
688 ctrl
= AR7240_PORT_CTRL_STATE_FORWARD
| AR7240_PORT_CTRL_LEARN
|
689 AR7240_PORT_CTRL_SINGLE_VLAN
;
691 if (port
== AR7240_PORT_CPU
) {
692 ar7240sw_reg_write(mii
, AR7240_REG_PORT_STATUS(port
),
693 AR7240_PORT_STATUS_SPEED_1000
|
694 AR7240_PORT_STATUS_TXFLOW
|
695 AR7240_PORT_STATUS_RXFLOW
|
696 AR7240_PORT_STATUS_TXMAC
|
697 AR7240_PORT_STATUS_RXMAC
|
698 AR7240_PORT_STATUS_DUPLEX
);
700 ar7240sw_reg_write(mii
, AR7240_REG_PORT_STATUS(port
),
701 AR7240_PORT_STATUS_LINK_AUTO
);
704 /* Set the default VID for this port */
706 vid
= as
->vlan_id
[as
->pvid
[port
]];
707 mode
= AR7240_PORT_VLAN_MODE_SECURE
;
710 mode
= AR7240_PORT_VLAN_MODE_PORT_ONLY
;
714 if (as
->vlan_tagged
& BIT(port
))
715 ctrl
|= AR7240_PORT_CTRL_VLAN_MODE_ADD
<<
716 AR7240_PORT_CTRL_VLAN_MODE_S
;
718 ctrl
|= AR7240_PORT_CTRL_VLAN_MODE_STRIP
<<
719 AR7240_PORT_CTRL_VLAN_MODE_S
;
721 ctrl
|= AR7240_PORT_CTRL_VLAN_MODE_KEEP
<<
722 AR7240_PORT_CTRL_VLAN_MODE_S
;
726 if (port
== AR7240_PORT_CPU
)
727 portmask
= ar7240sw_port_mask_but(as
, AR7240_PORT_CPU
);
729 portmask
= ar7240sw_port_mask(as
, AR7240_PORT_CPU
);
732 /* allow the port to talk to all other ports, but exclude its
733 * own ID to prevent frames from being reflected back to the
734 * port that they came from */
735 portmask
&= ar7240sw_port_mask_but(as
, port
);
737 ar7240sw_reg_write(mii
, AR7240_REG_PORT_CTRL(port
), ctrl
);
738 if (sw_is_ar934x(as
)) {
741 vlan1
= (vid
<< AR934X_PORT_VLAN1_DEFAULT_CVID_S
);
742 vlan2
= (portmask
<< AR934X_PORT_VLAN2_PORT_VID_MEM_S
) |
743 (mode
<< AR934X_PORT_VLAN2_8021Q_MODE_S
);
744 ar7240sw_reg_write(mii
, AR934X_REG_PORT_VLAN1(port
), vlan1
);
745 ar7240sw_reg_write(mii
, AR934X_REG_PORT_VLAN2(port
), vlan2
);
749 vlan
= vid
| (mode
<< AR7240_PORT_VLAN_MODE_S
) |
750 (portmask
<< AR7240_PORT_VLAN_DEST_PORTS_S
);
752 ar7240sw_reg_write(mii
, AR7240_REG_PORT_VLAN(port
), vlan
);
756 static int ar7240_set_addr(struct ar7240sw
*as
, u8
*addr
)
758 struct mii_bus
*mii
= as
->mii_bus
;
761 t
= (addr
[4] << 8) | addr
[5];
762 ar7240sw_reg_write(mii
, AR7240_REG_MAC_ADDR0
, t
);
764 t
= (addr
[0] << 24) | (addr
[1] << 16) | (addr
[2] << 8) | addr
[3];
765 ar7240sw_reg_write(mii
, AR7240_REG_MAC_ADDR1
, t
);
771 ar7240_set_vid(struct switch_dev
*dev
, const struct switch_attr
*attr
,
772 struct switch_val
*val
)
774 struct ar7240sw
*as
= sw_to_ar7240(dev
);
775 as
->vlan_id
[val
->port_vlan
] = val
->value
.i
;
780 ar7240_get_vid(struct switch_dev
*dev
, const struct switch_attr
*attr
,
781 struct switch_val
*val
)
783 struct ar7240sw
*as
= sw_to_ar7240(dev
);
784 val
->value
.i
= as
->vlan_id
[val
->port_vlan
];
789 ar7240_set_pvid(struct switch_dev
*dev
, int port
, int vlan
)
791 struct ar7240sw
*as
= sw_to_ar7240(dev
);
793 /* make sure no invalid PVIDs get set */
795 if (vlan
>= dev
->vlans
)
798 as
->pvid
[port
] = vlan
;
803 ar7240_get_pvid(struct switch_dev
*dev
, int port
, int *vlan
)
805 struct ar7240sw
*as
= sw_to_ar7240(dev
);
806 *vlan
= as
->pvid
[port
];
811 ar7240_get_ports(struct switch_dev
*dev
, struct switch_val
*val
)
813 struct ar7240sw
*as
= sw_to_ar7240(dev
);
814 u8 ports
= as
->vlan_table
[val
->port_vlan
];
818 for (i
= 0; i
< as
->swdev
.ports
; i
++) {
819 struct switch_port
*p
;
821 if (!(ports
& (1 << i
)))
824 p
= &val
->value
.ports
[val
->len
++];
826 if (as
->vlan_tagged
& (1 << i
))
827 p
->flags
= (1 << SWITCH_PORT_FLAG_TAGGED
);
835 ar7240_set_ports(struct switch_dev
*dev
, struct switch_val
*val
)
837 struct ar7240sw
*as
= sw_to_ar7240(dev
);
838 u8
*vt
= &as
->vlan_table
[val
->port_vlan
];
842 for (i
= 0; i
< val
->len
; i
++) {
843 struct switch_port
*p
= &val
->value
.ports
[i
];
845 if (p
->flags
& (1 << SWITCH_PORT_FLAG_TAGGED
))
846 as
->vlan_tagged
|= (1 << p
->id
);
848 as
->vlan_tagged
&= ~(1 << p
->id
);
849 as
->pvid
[p
->id
] = val
->port_vlan
;
851 /* make sure that an untagged port does not
852 * appear in other vlans */
853 for (j
= 0; j
< AR7240_MAX_VLANS
; j
++) {
854 if (j
== val
->port_vlan
)
856 as
->vlan_table
[j
] &= ~(1 << p
->id
);
866 ar7240_set_vlan(struct switch_dev
*dev
, const struct switch_attr
*attr
,
867 struct switch_val
*val
)
869 struct ar7240sw
*as
= sw_to_ar7240(dev
);
870 as
->vlan
= !!val
->value
.i
;
875 ar7240_get_vlan(struct switch_dev
*dev
, const struct switch_attr
*attr
,
876 struct switch_val
*val
)
878 struct ar7240sw
*as
= sw_to_ar7240(dev
);
879 val
->value
.i
= as
->vlan
;
884 ar7240_vtu_op(struct ar7240sw
*as
, u32 op
, u32 val
)
886 struct mii_bus
*mii
= as
->mii_bus
;
888 if (ar7240sw_reg_wait(mii
, AR7240_REG_VTU
, AR7240_VTU_ACTIVE
, 0, 5))
891 if ((op
& AR7240_VTU_OP
) == AR7240_VTU_OP_LOAD
) {
892 val
&= AR7240_VTUDATA_MEMBER
;
893 val
|= AR7240_VTUDATA_VALID
;
894 ar7240sw_reg_write(mii
, AR7240_REG_VTU_DATA
, val
);
896 op
|= AR7240_VTU_ACTIVE
;
897 ar7240sw_reg_write(mii
, AR7240_REG_VTU
, op
);
901 ar7240_hw_apply(struct switch_dev
*dev
)
903 struct ar7240sw
*as
= sw_to_ar7240(dev
);
904 u8 portmask
[AR7240_NUM_PORTS
];
907 /* flush all vlan translation unit entries */
908 ar7240_vtu_op(as
, AR7240_VTU_OP_FLUSH
, 0);
910 memset(portmask
, 0, sizeof(portmask
));
912 /* calculate the port destination masks and load vlans
913 * into the vlan translation unit */
914 for (j
= 0; j
< AR7240_MAX_VLANS
; j
++) {
915 u8 vp
= as
->vlan_table
[j
];
920 for (i
= 0; i
< as
->swdev
.ports
; i
++) {
923 portmask
[i
] |= vp
& ~mask
;
928 (as
->vlan_id
[j
] << AR7240_VTU_VID_S
),
933 * isolate all ports, but connect them to the cpu port */
934 for (i
= 0; i
< as
->swdev
.ports
; i
++) {
935 if (i
== AR7240_PORT_CPU
)
938 portmask
[i
] = 1 << AR7240_PORT_CPU
;
939 portmask
[AR7240_PORT_CPU
] |= (1 << i
);
943 /* update the port destination mask registers and tag settings */
944 for (i
= 0; i
< as
->swdev
.ports
; i
++)
945 ar7240sw_setup_port(as
, i
, portmask
[i
]);
951 ar7240_reset_switch(struct switch_dev
*dev
)
953 struct ar7240sw
*as
= sw_to_ar7240(dev
);
959 ar7240_get_port_link(struct switch_dev
*dev
, int port
,
960 struct switch_port_link
*link
)
962 struct ar7240sw
*as
= sw_to_ar7240(dev
);
963 struct mii_bus
*mii
= as
->mii_bus
;
966 if (port
> AR7240_NUM_PORTS
)
969 status
= ar7240sw_reg_read(mii
, AR7240_REG_PORT_STATUS(port
));
970 link
->aneg
= !!(status
& AR7240_PORT_STATUS_LINK_AUTO
);
972 link
->link
= !!(status
& AR7240_PORT_STATUS_LINK_UP
);
979 link
->duplex
= !!(status
& AR7240_PORT_STATUS_DUPLEX
);
980 link
->tx_flow
= !!(status
& AR7240_PORT_STATUS_TXFLOW
);
981 link
->rx_flow
= !!(status
& AR7240_PORT_STATUS_RXFLOW
);
982 switch (status
& AR7240_PORT_STATUS_SPEED_M
) {
983 case AR7240_PORT_STATUS_SPEED_10
:
984 link
->speed
= SWITCH_PORT_SPEED_10
;
986 case AR7240_PORT_STATUS_SPEED_100
:
987 link
->speed
= SWITCH_PORT_SPEED_100
;
989 case AR7240_PORT_STATUS_SPEED_1000
:
990 link
->speed
= SWITCH_PORT_SPEED_1000
;
998 ar7240_get_port_stats(struct switch_dev
*dev
, int port
,
999 struct switch_port_stats
*stats
)
1001 struct ar7240sw
*as
= sw_to_ar7240(dev
);
1003 if (port
> AR7240_NUM_PORTS
)
1006 ar7240sw_capture_stats(as
);
1008 read_lock(&as
->stats_lock
);
1009 stats
->rx_bytes
= as
->port_stats
[port
].rx_good_byte
;
1010 stats
->tx_bytes
= as
->port_stats
[port
].tx_byte
;
1011 read_unlock(&as
->stats_lock
);
1016 static struct switch_attr ar7240_globals
[] = {
1018 .type
= SWITCH_TYPE_INT
,
1019 .name
= "enable_vlan",
1020 .description
= "Enable VLAN mode",
1021 .set
= ar7240_set_vlan
,
1022 .get
= ar7240_get_vlan
,
1027 static struct switch_attr ar7240_port
[] = {
1030 static struct switch_attr ar7240_vlan
[] = {
1032 .type
= SWITCH_TYPE_INT
,
1034 .description
= "VLAN ID",
1035 .set
= ar7240_set_vid
,
1036 .get
= ar7240_get_vid
,
1041 static const struct switch_dev_ops ar7240_ops
= {
1043 .attr
= ar7240_globals
,
1044 .n_attr
= ARRAY_SIZE(ar7240_globals
),
1047 .attr
= ar7240_port
,
1048 .n_attr
= ARRAY_SIZE(ar7240_port
),
1051 .attr
= ar7240_vlan
,
1052 .n_attr
= ARRAY_SIZE(ar7240_vlan
),
1054 .get_port_pvid
= ar7240_get_pvid
,
1055 .set_port_pvid
= ar7240_set_pvid
,
1056 .get_vlan_ports
= ar7240_get_ports
,
1057 .set_vlan_ports
= ar7240_set_ports
,
1058 .apply_config
= ar7240_hw_apply
,
1059 .reset_switch
= ar7240_reset_switch
,
1060 .get_port_link
= ar7240_get_port_link
,
1061 .get_port_stats
= ar7240_get_port_stats
,
1064 static struct ar7240sw
*ar7240_probe(struct ag71xx
*ag
)
1066 struct ag71xx_platform_data
*pdata
= ag71xx_get_pdata(ag
);
1067 struct mii_bus
*mii
= ag
->mii_bus
;
1068 struct ar7240sw
*as
;
1069 struct switch_dev
*swdev
;
1075 phy_id1
= ar7240sw_phy_read(mii
, 0, MII_PHYSID1
);
1076 phy_id2
= ar7240sw_phy_read(mii
, 0, MII_PHYSID2
);
1077 if ((phy_id1
!= AR7240_PHY_ID1
|| phy_id2
!= AR7240_PHY_ID2
) &&
1078 (phy_id1
!= AR934X_PHY_ID1
|| phy_id2
!= AR934X_PHY_ID2
)) {
1079 pr_err("%s: unknown phy id '%04x:%04x'\n",
1080 dev_name(&mii
->dev
), phy_id1
, phy_id2
);
1084 as
= kzalloc(sizeof(*as
), GFP_KERNEL
);
1089 as
->swdata
= pdata
->switch_data
;
1093 ctrl
= ar7240sw_reg_read(mii
, AR7240_REG_MASK_CTRL
);
1094 as
->ver
= (ctrl
>> AR7240_MASK_CTRL_VERSION_S
) &
1095 AR7240_MASK_CTRL_VERSION_M
;
1097 if (sw_is_ar7240(as
)) {
1098 swdev
->name
= "AR7240/AR9330 built-in switch";
1099 swdev
->ports
= AR7240_NUM_PORTS
- 1;
1100 } else if (sw_is_ar934x(as
)) {
1101 swdev
->name
= "AR934X built-in switch";
1103 if (pdata
->phy_if_mode
== PHY_INTERFACE_MODE_GMII
) {
1104 ar7240sw_reg_set(mii
, AR934X_REG_OPER_MODE0
,
1105 AR934X_OPER_MODE0_MAC_GMII_EN
);
1106 } else if (pdata
->phy_if_mode
== PHY_INTERFACE_MODE_MII
) {
1107 ar7240sw_reg_set(mii
, AR934X_REG_OPER_MODE0
,
1108 AR934X_OPER_MODE0_PHY_MII_EN
);
1110 pr_err("%s: invalid PHY interface mode\n",
1111 dev_name(&mii
->dev
));
1115 if (as
->swdata
->phy4_mii_en
) {
1116 ar7240sw_reg_set(mii
, AR934X_REG_OPER_MODE1
,
1117 AR934X_REG_OPER_MODE1_PHY4_MII_EN
);
1118 swdev
->ports
= AR7240_NUM_PORTS
- 1;
1120 swdev
->ports
= AR7240_NUM_PORTS
;
1123 pr_err("%s: unsupported chip, ctrl=%08x\n",
1124 dev_name(&mii
->dev
), ctrl
);
1128 swdev
->cpu_port
= AR7240_PORT_CPU
;
1129 swdev
->vlans
= AR7240_MAX_VLANS
;
1130 swdev
->ops
= &ar7240_ops
;
1132 if (register_switch(&as
->swdev
, ag
->dev
) < 0)
1135 pr_info("%s: Found an %s\n", dev_name(&mii
->dev
), swdev
->name
);
1137 /* initialize defaults */
1138 for (i
= 0; i
< AR7240_MAX_VLANS
; i
++)
1141 as
->vlan_table
[0] = ar7240sw_port_mask_all(as
);
1150 static void link_function(struct work_struct
*work
) {
1151 struct ag71xx
*ag
= container_of(work
, struct ag71xx
, link_work
.work
);
1152 struct ar7240sw
*as
= ag
->phy_priv
;
1153 unsigned long flags
;
1158 mask
= ~as
->swdata
->phy_poll_mask
;
1159 for (i
= 0; i
< AR7240_NUM_PHYS
; i
++) {
1162 if (!(mask
& BIT(i
)))
1165 link
= ar7240sw_phy_read(ag
->mii_bus
, i
, MII_BMSR
);
1166 if (link
& BMSR_LSTATUS
) {
1172 spin_lock_irqsave(&ag
->lock
, flags
);
1173 if (status
!= ag
->link
) {
1175 ag71xx_link_adjust(ag
);
1177 spin_unlock_irqrestore(&ag
->lock
, flags
);
1179 schedule_delayed_work(&ag
->link_work
, HZ
/ 2);
1182 void ag71xx_ar7240_start(struct ag71xx
*ag
)
1184 struct ar7240sw
*as
= ag
->phy_priv
;
1188 ag
->speed
= SPEED_1000
;
1191 ar7240_set_addr(as
, ag
->dev
->dev_addr
);
1192 ar7240_hw_apply(&as
->swdev
);
1194 schedule_delayed_work(&ag
->link_work
, HZ
/ 10);
1197 void ag71xx_ar7240_stop(struct ag71xx
*ag
)
1199 cancel_delayed_work_sync(&ag
->link_work
);
1202 int ag71xx_ar7240_init(struct ag71xx
*ag
)
1204 struct ar7240sw
*as
;
1206 as
= ar7240_probe(ag
);
1213 rwlock_init(&as
->stats_lock
);
1214 INIT_DELAYED_WORK(&ag
->link_work
, link_function
);
1219 void ag71xx_ar7240_cleanup(struct ag71xx
*ag
)
1221 struct ar7240sw
*as
= ag
->phy_priv
;
1226 unregister_switch(&as
->swdev
);
1228 ag
->phy_priv
= NULL
;