2 * Broadcom 53xx RoboSwitch device driver.
4 * Copyright 2007, Broadcom Corporation
7 * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
8 * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
9 * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
10 * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
22 #include <bcmendian.h>
23 #include <bcmparams.h>
27 #include <proto/ethernet.h>
29 #define ET_ERROR(args)
34 * Switch can be programmed through SPI interface, which
35 * has a rreg and a wreg functions to read from and write to
39 /* MII access registers */
40 #define PSEUDO_PHYAD 0x1E /* MII Pseudo PHY address */
41 #define REG_MII_PAGE 0x10 /* MII Page register */
42 #define REG_MII_ADDR 0x11 /* MII Address register */
43 #define REG_MII_DATA0 0x18 /* MII Data register 0 */
44 #define REG_MII_DATA1 0x19 /* MII Data register 1 */
45 #define REG_MII_DATA2 0x1a /* MII Data register 2 */
46 #define REG_MII_DATA3 0x1b /* MII Data register 3 */
49 #define PAGE_CTRL 0x00 /* Control page */
50 #define PAGE_MMR 0x02 /* 5397 Management/Mirroring page */
51 #define PAGE_VTBL 0x05 /* ARL/VLAN Table access page */
52 #define PAGE_VLAN 0x34 /* VLAN page */
54 /* Control page registers */
55 #define REG_CTRL_PORT0 0x00 /* Port 0 traffic control register */
56 #define REG_CTRL_PORT1 0x01 /* Port 1 traffic control register */
57 #define REG_CTRL_PORT2 0x02 /* Port 2 traffic control register */
58 #define REG_CTRL_PORT3 0x03 /* Port 3 traffic control register */
59 #define REG_CTRL_PORT4 0x04 /* Port 4 traffic control register */
60 #define REG_CTRL_PORT5 0x05 /* Port 5 traffic control register */
61 #define REG_CTRL_PORT6 0x06 /* Port 6 traffic control register */
62 #define REG_CTRL_PORT7 0x07 /* Port 7 traffic control register */
63 #define REG_CTRL_MODE 0x0B /* Switch Mode register */
64 #define REG_CTRL_MIIPO 0x0E /* 5325: MII Port Override register */
65 #define REG_CTRL_SRST 0x79 /* Software reset control register */
67 #define REG_DEVICE_ID 0x30 /* 539x Device id: */
68 #define DEVID5325 0x25 /* 5325 (Not really be we fake it) */
69 #define DEVID5395 0x95 /* 5395 */
70 #define DEVID5397 0x97 /* 5397 */
71 #define DEVID5398 0x98 /* 5398 */
73 /* VLAN page registers */
74 #define REG_VLAN_CTRL0 0x00 /* VLAN Control 0 register */
75 #define REG_VLAN_CTRL1 0x01 /* VLAN Control 1 register */
76 #define REG_VLAN_CTRL4 0x04 /* VLAN Control 4 register */
77 #define REG_VLAN_CTRL5 0x05 /* VLAN Control 5 register */
78 #define REG_VLAN_ACCESS 0x06 /* VLAN Table Access register */
79 #define REG_VLAN_ACCESS_5365 0x08 /* 5365 VLAN Table Access register */
80 #define REG_VLAN_WRITE 0x08 /* VLAN Write register */
81 #define REG_VLAN_WRITE_5365 0x0A /* 5365 VLAN Write register */
82 #define REG_VLAN_READ 0x0C /* VLAN Read register */
83 #define REG_VLAN_PTAG0 0x10 /* VLAN Default Port Tag register - port 0 */
84 #define REG_VLAN_PTAG1 0x12 /* VLAN Default Port Tag register - port 1 */
85 #define REG_VLAN_PTAG2 0x14 /* VLAN Default Port Tag register - port 2 */
86 #define REG_VLAN_PTAG3 0x16 /* VLAN Default Port Tag register - port 3 */
87 #define REG_VLAN_PTAG4 0x18 /* VLAN Default Port Tag register - port 4 */
88 #define REG_VLAN_PTAG5 0x1a /* VLAN Default Port Tag register - port 5 */
89 #define REG_VLAN_PTAG6 0x1c /* VLAN Default Port Tag register - port 6 */
90 #define REG_VLAN_PTAG7 0x1e /* VLAN Default Port Tag register - port 7 */
91 #define REG_VLAN_PTAG8 0x20 /* 539x: VLAN Default Port Tag register - IMP port */
92 #define REG_VLAN_PMAP 0x20 /* 5325: VLAN Priority Re-map register */
94 #define VLAN_NUMVLANS 16 /* # of VLANs */
97 /* ARL/VLAN Table Access page registers */
98 #define REG_VTBL_CTRL 0x00 /* ARL Read/Write Control */
99 #define REG_VTBL_MINDX 0x02 /* MAC Address Index */
100 #define REG_VTBL_VINDX 0x08 /* VID Table Index */
101 #define REG_VTBL_ARL_E0 0x10 /* ARL Entry 0 */
102 #define REG_VTBL_ARL_E1 0x18 /* ARL Entry 1 */
103 #define REG_VTBL_DAT_E0 0x18 /* ARL Table Data Entry 0 */
104 #define REG_VTBL_SCTRL 0x20 /* ARL Search Control */
105 #define REG_VTBL_SADDR 0x22 /* ARL Search Address */
106 #define REG_VTBL_SRES 0x24 /* ARL Search Result */
107 #define REG_VTBL_SREXT 0x2c /* ARL Search Result */
108 #define REG_VTBL_VID_E0 0x30 /* VID Entry 0 */
109 #define REG_VTBL_VID_E1 0x32 /* VID Entry 1 */
110 #define REG_VTBL_PREG 0xFF /* Page Register */
111 #define REG_VTBL_ACCESS 0x60 /* VLAN table access register */
112 #define REG_VTBL_INDX 0x61 /* VLAN table address index register */
113 #define REG_VTBL_ENTRY 0x63 /* VLAN table entry register */
114 #define REG_VTBL_ACCESS_5395 0x80 /* VLAN table access register */
115 #define REG_VTBL_INDX_5395 0x81 /* VLAN table address index register */
116 #define REG_VTBL_ENTRY_5395 0x83 /* VLAN table entry register */
119 #define REG_SPI_PAGE 0xff /* SPI Page register */
121 /* Access switch registers through GPIO/SPI */
123 /* Minimum timing constants */
124 #define SCK_EDGE_TIME 2 /* clock edge duration - 2us */
125 #define MOSI_SETUP_TIME 1 /* input setup duration - 1us */
126 #define SS_SETUP_TIME 1 /* select setup duration - 1us */
128 /* misc. constants */
129 #define SPI_MAX_RETRY 100
131 /* Enable GPIO access to the chip */
133 gpio_enable(robo_info_t
*robo
)
135 /* Enable GPIO outputs with SCK and MOSI low, SS high */
136 sb_gpioout(robo
->sbh
, robo
->ss
| robo
->sck
| robo
->mosi
, robo
->ss
, GPIO_DRV_PRIORITY
);
137 sb_gpioouten(robo
->sbh
, robo
->ss
| robo
->sck
| robo
->mosi
,
138 robo
->ss
| robo
->sck
| robo
->mosi
, GPIO_DRV_PRIORITY
);
141 /* Disable GPIO access to the chip */
143 gpio_disable(robo_info_t
*robo
)
145 /* Disable GPIO outputs with all their current values */
146 sb_gpioouten(robo
->sbh
, robo
->ss
| robo
->sck
| robo
->mosi
, 0, GPIO_DRV_PRIORITY
);
149 /* Write a byte stream to the chip thru SPI */
151 spi_write(robo_info_t
*robo
, uint8
*buf
, uint len
)
156 /* Byte bang from LSB to MSB */
157 for (i
= 0; i
< len
; i
++) {
158 /* Bit bang from MSB to LSB */
159 for (mask
= 0x80; mask
; mask
>>= 1) {
161 sb_gpioout(robo
->sbh
, robo
->sck
, 0, GPIO_DRV_PRIORITY
);
162 OSL_DELAY(SCK_EDGE_TIME
);
164 /* Sample on rising edge */
166 sb_gpioout(robo
->sbh
, robo
->mosi
, robo
->mosi
, GPIO_DRV_PRIORITY
);
168 sb_gpioout(robo
->sbh
, robo
->mosi
, 0, GPIO_DRV_PRIORITY
);
169 OSL_DELAY(MOSI_SETUP_TIME
);
172 sb_gpioout(robo
->sbh
, robo
->sck
, robo
->sck
, GPIO_DRV_PRIORITY
);
173 OSL_DELAY(SCK_EDGE_TIME
);
180 /* Read a byte stream from the chip thru SPI */
182 spi_read(robo_info_t
*robo
, uint8
*buf
, uint len
)
185 uint8 rack
, mask
, byte
;
187 /* Timeout after 100 tries without RACK */
188 for (i
= 0, rack
= 0, timeout
= SPI_MAX_RETRY
; i
< len
&& timeout
;) {
189 /* Bit bang from MSB to LSB */
190 for (mask
= 0x80, byte
= 0; mask
; mask
>>= 1) {
192 sb_gpioout(robo
->sbh
, robo
->sck
, 0, GPIO_DRV_PRIORITY
);
193 OSL_DELAY(SCK_EDGE_TIME
);
195 /* Sample on falling edge */
196 if (sb_gpioin(robo
->sbh
) & robo
->miso
)
200 sb_gpioout(robo
->sbh
, robo
->sck
, robo
->sck
, GPIO_DRV_PRIORITY
);
201 OSL_DELAY(SCK_EDGE_TIME
);
203 /* RACK when bit 0 is high */
209 /* Byte bang from LSB to MSB */
215 ET_ERROR(("spi_read: timeout"));
222 /* Enable/disable SPI access */
224 spi_select(robo_info_t
*robo
, uint8 spi
)
227 /* Enable SPI access */
228 sb_gpioout(robo
->sbh
, robo
->ss
, 0, GPIO_DRV_PRIORITY
);
230 /* Disable SPI access */
231 sb_gpioout(robo
->sbh
, robo
->ss
, robo
->ss
, GPIO_DRV_PRIORITY
);
233 OSL_DELAY(SS_SETUP_TIME
);
237 /* Select chip and page */
239 spi_goto(robo_info_t
*robo
, uint8 page
)
241 uint8 reg8
= REG_SPI_PAGE
; /* page select register */
244 /* Issue the command only when we are on a different page */
245 if (robo
->page
== page
)
250 /* Enable SPI access */
253 /* Select new page with CID 0 */
254 cmd8
= ((6 << 4) | /* normal SPI */
256 spi_write(robo
, &cmd8
, 1);
257 spi_write(robo
, ®8
, 1);
258 spi_write(robo
, &page
, 1);
260 /* Disable SPI access */
264 /* Write register thru SPI */
266 spi_wreg(robo_info_t
*robo
, uint8 page
, uint8 addr
, void *val
, int len
)
276 /* validate value length and buffer address */
277 ASSERT(len
== 1 || (len
== 2 && !((int)val
& 1)) ||
278 (len
== 4 && !((int)val
& 3)));
280 /* Select chip and page */
281 spi_goto(robo
, page
);
283 /* Enable SPI access */
286 /* Write with CID 0 */
287 cmd8
= ((6 << 4) | /* normal SPI */
289 spi_write(robo
, &cmd8
, 1);
290 spi_write(robo
, &addr
, 1);
293 bytes
.val8
= *(uint8
*)val
;
296 bytes
.val16
= htol16(*(uint16
*)val
);
299 bytes
.val32
= htol32(*(uint32
*)val
);
302 spi_write(robo
, (uint8
*)val
, len
);
304 ET_MSG(("%s: [0x%x-0x%x] := 0x%x (len %d)\n", __FUNCTION__
, page
, addr
,
305 *(uint16
*)val
, len
));
306 /* Disable SPI access */
311 /* Read register thru SPI in fast SPI mode */
313 spi_rreg(robo_info_t
*robo
, uint8 page
, uint8 addr
, void *val
, int len
)
323 /* validate value length and buffer address */
324 ASSERT(len
== 1 || (len
== 2 && !((int)val
& 1)) ||
325 (len
== 4 && !((int)val
& 3)));
327 /* Select chip and page */
328 spi_goto(robo
, page
);
330 /* Enable SPI access */
333 /* Fast SPI read with CID 0 and byte offset 0 */
334 cmd8
= (1 << 4); /* fast SPI */
335 spi_write(robo
, &cmd8
, 1);
336 spi_write(robo
, &addr
, 1);
337 status
= spi_read(robo
, (uint8
*)&bytes
, len
);
340 *(uint8
*)val
= bytes
.val8
;
343 *(uint16
*)val
= ltoh16(bytes
.val16
);
346 *(uint32
*)val
= ltoh32(bytes
.val32
);
350 ET_MSG(("%s: [0x%x-0x%x] => 0x%x (len %d)\n", __FUNCTION__
, page
, addr
,
351 *(uint16
*)val
, len
));
353 /* Disable SPI access */
358 /* SPI/gpio interface functions */
359 static dev_ops_t spigpio
= {
368 /* Access switch registers through MII (MDC/MDIO) */
370 #define MII_MAX_RETRY 100
372 /* Write register thru MDC/MDIO */
374 mii_wreg(robo_info_t
*robo
, uint8 page
, uint8 reg
, void *val
, int len
)
379 uint8
*ptr
= (uint8
*)val
;
381 /* validate value length and buffer address */
382 ASSERT(len
== 1 || len
== 6 || len
== 8 ||
383 ((len
== 2) && !((int)val
& 1)) || ((len
== 4) && !((int)val
& 3)));
385 ET_MSG(("%s: [0x%x-0x%x] := 0x%x (len %d)\n", __FUNCTION__
, page
, reg
,
386 *(uint16
*)val
, len
));
388 /* set page number - MII register 0x10 */
389 if (robo
->page
!= page
) {
390 cmd16
= ((page
<< 8) | /* page number */
391 1); /* mdc/mdio access enable */
392 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_PAGE
, cmd16
);
399 val16
= ((val16
<< 8) | ptr
[6]);
400 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_DATA3
, val16
);
405 val16
= ((val16
<< 8) | ptr
[4]);
406 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_DATA2
, val16
);
408 val16
= ((val16
<< 8) | ptr
[2]);
409 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_DATA1
, val16
);
411 val16
= ((val16
<< 8) | ptr
[0]);
412 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_DATA0
, val16
);
416 val16
= (uint16
)((*(uint32
*)val
) >> 16);
417 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_DATA1
, val16
);
418 val16
= (uint16
)(*(uint32
*)val
);
419 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_DATA0
, val16
);
423 val16
= *(uint16
*)val
;
424 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_DATA0
, val16
);
428 val16
= *(uint8
*)val
;
429 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_DATA0
, val16
);
433 /* set register address - MII register 0x11 */
434 cmd16
= ((reg
<< 8) | /* register address */
435 1); /* opcode write */
436 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_ADDR
, cmd16
);
438 /* is operation finished? */
439 for (i
= MII_MAX_RETRY
; i
> 0; i
--) {
440 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_ADDR
);
441 if ((val16
& 3) == 0)
447 ET_ERROR(("mii_wreg: timeout"));
453 /* Read register thru MDC/MDIO */
455 mii_rreg(robo_info_t
*robo
, uint8 page
, uint8 reg
, void *val
, int len
)
460 uint8
*ptr
= (uint8
*)val
;
462 /* validate value length and buffer address */
463 ASSERT(len
== 1 || len
== 6 || len
== 8 ||
464 ((len
== 2) && !((int)val
& 1)) || ((len
== 4) && !((int)val
& 3)));
466 /* set page number - MII register 0x10 */
467 if (robo
->page
!= page
) {
468 cmd16
= ((page
<< 8) | /* page number */
469 1); /* mdc/mdio access enable */
470 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_PAGE
, cmd16
);
474 /* set register address - MII register 0x11 */
475 cmd16
= ((reg
<< 8) | /* register address */
476 2); /* opcode read */
477 robo
->miiwr(h
, PSEUDO_PHYAD
, REG_MII_ADDR
, cmd16
);
479 /* is operation finished? */
480 for (i
= MII_MAX_RETRY
; i
> 0; i
--) {
481 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_ADDR
);
482 if ((val16
& 3) == 0)
487 ET_ERROR(("mii_rreg: timeout"));
491 ET_MSG(("%s: [0x%x-0x%x] => 0x%x (len %d)\n", __FUNCTION__
, page
, reg
, val16
, len
));
495 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_DATA3
);
496 ptr
[7] = (val16
>> 8);
497 ptr
[6] = (val16
& 0xff);
501 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_DATA2
);
502 ptr
[5] = (val16
>> 8);
503 ptr
[4] = (val16
& 0xff);
504 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_DATA1
);
505 ptr
[3] = (val16
>> 8);
506 ptr
[2] = (val16
& 0xff);
507 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_DATA0
);
508 ptr
[1] = (val16
>> 8);
509 ptr
[0] = (val16
& 0xff);
513 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_DATA1
);
514 *(uint32
*)val
= (((uint32
)val16
) << 16);
515 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_DATA0
);
516 *(uint32
*)val
|= val16
;
520 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_DATA0
);
521 *(uint16
*)val
= val16
;
525 val16
= robo
->miird(h
, PSEUDO_PHYAD
, REG_MII_DATA0
);
526 *(uint8
*)val
= (uint8
)(val16
& 0xff);
533 /* MII interface functions */
534 static dev_ops_t mdcmdio
= {
542 /* High level switch configuration functions. */
544 /* Get access to the RoboSwitch */
546 bcm_robo_attach(sb_t
*sbh
, void *h
, char *vars
, miird_f miird
, miiwr_f miiwr
)
551 /* Allocate and init private state */
552 if (!(robo
= MALLOC(sb_osh(sbh
), sizeof(robo_info_t
)))) {
553 ET_ERROR(("robo_attach: out of memory, malloced %d bytes", MALLOCED(sb_osh(sbh
))));
556 bzero(robo
, sizeof(robo_info_t
));
565 /* Trigger external reset by nvram variable existance */
566 if ((reset
= getgpiopin(robo
->vars
, "robo_reset", GPIO_PIN_NOTDEFINED
)) !=
567 GPIO_PIN_NOTDEFINED
) {
569 * Reset sequence: RESET low(50ms)->high(20ms)
571 * We have to perform a full sequence for we don't know how long
572 * it has been from power on till now.
574 ET_MSG(("%s: Using external reset in gpio pin %d\n", __FUNCTION__
, reset
));
577 /* Keep RESET low for 50 ms */
578 sb_gpioout(robo
->sbh
, reset
, 0, GPIO_DRV_PRIORITY
);
579 sb_gpioouten(robo
->sbh
, reset
, reset
, GPIO_DRV_PRIORITY
);
582 /* Keep RESET high for at least 20 ms */
583 sb_gpioout(robo
->sbh
, reset
, reset
, GPIO_DRV_PRIORITY
);
586 /* In case we need it */
587 idx
= sb_coreidx(robo
->sbh
);
589 if (sb_setcore(robo
->sbh
, SB_ROBO
, 0)) {
590 /* If we have an internal robo core, reset it using sb_core_reset */
591 ET_MSG(("%s: Resetting internal robo core\n", __FUNCTION__
));
592 sb_core_reset(robo
->sbh
, 0, 0);
595 sb_setcoreidx(robo
->sbh
, idx
);
598 if (miird
&& miiwr
) {
600 int rc
, retry_count
= 0;
602 /* Read the PHY ID */
603 tmp
= miird(h
, PSEUDO_PHYAD
, 2);
606 rc
= mii_rreg(robo
, PAGE_MMR
, REG_DEVICE_ID
, \
607 &robo
->devid
, sizeof(uint16
));
611 } while ((robo
->devid
== 0) && (retry_count
< 10));
613 ET_MSG(("%s: devid read %ssuccesfully via mii: 0x%x\n", __FUNCTION__
, \
614 rc
? "un" : "", robo
->devid
));
615 ET_MSG(("%s: mii access to switch works\n", __FUNCTION__
));
616 robo
->ops
= &mdcmdio
;
617 if ((rc
!= 0) || (robo
->devid
== 0)) {
618 ET_MSG(("%s: error reading devid, assuming 5325e\n", __FUNCTION__
));
619 robo
->devid
= DEVID5325
;
621 ET_MSG(("%s: devid: 0x%x\n", __FUNCTION__
, robo
->devid
));
625 if ((robo
->devid
== DEVID5395
) ||
626 (robo
->devid
== DEVID5397
) ||
627 (robo
->devid
== DEVID5398
)) {
630 /* If it is a 539x switch, use the soft reset register */
631 ET_MSG(("%s: Resetting 539x robo switch\n", __FUNCTION__
));
633 /* Reset the 539x switch core and register file */
635 mii_wreg(robo
, PAGE_CTRL
, REG_CTRL_SRST
, &srst_ctrl
, sizeof(uint8
));
637 mii_wreg(robo
, PAGE_CTRL
, REG_CTRL_SRST
, &srst_ctrl
, sizeof(uint8
));
641 int mosi
, miso
, ss
, sck
;
643 robo
->ops
= &spigpio
;
644 robo
->devid
= DEVID5325
;
646 /* Init GPIO mapping. Default 2, 3, 4, 5 */
647 ss
= getgpiopin(vars
, "robo_ss", 2);
648 if (ss
== GPIO_PIN_NOTDEFINED
) {
649 ET_ERROR(("robo_attach: robo_ss gpio fail: GPIO 2 in use"));
653 sck
= getgpiopin(vars
, "robo_sck", 3);
654 if (sck
== GPIO_PIN_NOTDEFINED
) {
655 ET_ERROR(("robo_attach: robo_sck gpio fail: GPIO 3 in use"));
658 robo
->sck
= 1 << sck
;
659 mosi
= getgpiopin(vars
, "robo_mosi", 4);
660 if (mosi
== GPIO_PIN_NOTDEFINED
) {
661 ET_ERROR(("robo_attach: robo_mosi gpio fail: GPIO 4 in use"));
664 robo
->mosi
= 1 << mosi
;
665 miso
= getgpiopin(vars
, "robo_miso", 5);
666 if (miso
== GPIO_PIN_NOTDEFINED
) {
667 ET_ERROR(("robo_attach: robo_miso gpio fail: GPIO 5 in use"));
670 robo
->miso
= 1 << miso
;
671 ET_MSG(("%s: ss %d sck %d mosi %d miso %d\n", __FUNCTION__
,
672 ss
, sck
, mosi
, miso
));
677 ASSERT(robo
->ops
->write_reg
);
678 ASSERT(robo
->ops
->read_reg
);
679 ASSERT((robo
->devid
== DEVID5325
) ||
680 (robo
->devid
== DEVID5395
) ||
681 (robo
->devid
== DEVID5397
) ||
682 (robo
->devid
== DEVID5398
));
687 bcm_robo_detach(robo
);
691 /* Release access to the RoboSwitch */
693 bcm_robo_detach(robo_info_t
*robo
)
695 MFREE(sb_osh(robo
->sbh
), robo
, sizeof(robo_info_t
));
698 /* Enable the device and set it to a known good state */
700 bcm_robo_enable_device(robo_info_t
*robo
)
702 uint8 reg_offset
, reg_val
;
705 /* Enable management interface access */
706 if (robo
->ops
->enable_mgmtif
)
707 robo
->ops
->enable_mgmtif(robo
);
709 if (robo
->devid
== DEVID5398
) {
710 /* Disable unused ports: port 6 and 7 */
711 for (reg_offset
= REG_CTRL_PORT6
; reg_offset
<= REG_CTRL_PORT7
; reg_offset
++) {
712 /* Set bits [1:0] to disable RX and TX */
714 robo
->ops
->write_reg(robo
, PAGE_CTRL
, reg_offset
, ®_val
,
719 if (robo
->devid
== DEVID5325
) {
720 /* Must put the switch into Reverse MII mode! */
722 /* MII port state override (page 0 register 14) */
723 robo
->ops
->read_reg(robo
, PAGE_CTRL
, REG_CTRL_MIIPO
, ®_val
, sizeof(reg_val
));
725 /* Bit 4 enables reverse MII mode */
726 if (!(reg_val
& (1 << 4))) {
729 robo
->ops
->write_reg(robo
, PAGE_CTRL
, REG_CTRL_MIIPO
, ®_val
,
733 robo
->ops
->read_reg(robo
, PAGE_CTRL
, REG_CTRL_MIIPO
, ®_val
,
735 if (!(reg_val
& (1 << 4))) {
736 ET_ERROR(("robo_enable_device: enabling RvMII mode failed\n"));
742 /* Disable management interface access */
743 if (robo
->ops
->disable_mgmtif
)
744 robo
->ops
->disable_mgmtif(robo
);
750 #define FLAG_TAGGED 't' /* output tagged (external ports only) */
751 #define FLAG_UNTAG 'u' /* input & output untagged (CPU port only, for OS (linux, ...) */
752 #define FLAG_LAN '*' /* input & output untagged (CPU port only, for CFE */
754 /* port descriptor */
756 uint32 untag
; /* untag enable bit (Page 0x05 Address 0x63-0x66 Bit[17:9]) */
757 uint32 member
; /* vlan member bit (Page 0x05 Address 0x63-0x66 Bit[7:0]) */
758 uint8 ptagr
; /* port tag register address (Page 0x34 Address 0x10-0x1F) */
759 uint8 cpu
; /* is this cpu port? */
762 pdesc_t pdesc97
[] = {
763 /* 5395/5397/5398 is 0 ~ 7. port 8 is IMP port. */
764 /* port 0 */ {1 << 9, 1 << 0, REG_VLAN_PTAG0
, 0},
765 /* port 1 */ {1 << 10, 1 << 1, REG_VLAN_PTAG1
, 0},
766 /* port 2 */ {1 << 11, 1 << 2, REG_VLAN_PTAG2
, 0},
767 /* port 3 */ {1 << 12, 1 << 3, REG_VLAN_PTAG3
, 0},
768 /* port 4 */ {1 << 13, 1 << 4, REG_VLAN_PTAG4
, 0},
769 /* port 5 */ {1 << 14, 1 << 5, REG_VLAN_PTAG5
, 0},
770 /* port 6 */ {1 << 15, 1 << 6, REG_VLAN_PTAG6
, 0},
771 /* port 7 */ {1 << 16, 1 << 7, REG_VLAN_PTAG7
, 0},
772 /* mii port */ {1 << 17, 1 << 8, REG_VLAN_PTAG8
, 1},
775 pdesc_t pdesc25
[] = {
776 /* port 0 */ {1 << 6, 1 << 0, REG_VLAN_PTAG0
, 0},
777 /* port 1 */ {1 << 7, 1 << 1, REG_VLAN_PTAG1
, 0},
778 /* port 2 */ {1 << 8, 1 << 2, REG_VLAN_PTAG2
, 0},
779 /* port 3 */ {1 << 9, 1 << 3, REG_VLAN_PTAG3
, 0},
780 /* port 4 */ {1 << 10, 1 << 4, REG_VLAN_PTAG4
, 0},
781 /* mii port */ {1 << 11, 1 << 5, REG_VLAN_PTAG5
, 1},
784 /* Configure the VLANs */
786 bcm_robo_config_vlan(robo_info_t
*robo
, uint8
*mac_addr
)
793 uint16 vid
, vid0
, vid_map
;
794 uint8 arl_entry
[8] = { 0 }, arl_entry1
[8] = { 0 };
796 /* Enable management interface access */
797 if (robo
->ops
->enable_mgmtif
)
798 robo
->ops
->enable_mgmtif(robo
);
800 /* setup global vlan configuration */
801 /* VLAN Control 0 Register (Page 0x34, Address 0) */
802 val8
= ((1 << 7) | /* enable 802.1Q VLAN */
803 (3 << 5)); /* individual VLAN learning mode */
804 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_CTRL0
, &val8
, sizeof(val8
));
806 /* VLAN Control 1 Register (Page 0x34, Address 1) */
807 val8
= ((1 << 2) | /* enable RSV multicast V Fwdmap */
808 (1 << 3)); /* enable RSV multicast V Untagmap */
809 if (robo
->devid
== DEVID5325
)
810 val8
|= (1 << 1); /* enable RSV multicast V Tagging */
811 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_CTRL1
, &val8
, sizeof(val8
));
813 arl_entry
[0] = mac_addr
[5];
814 arl_entry
[1] = mac_addr
[4];
815 arl_entry
[2] = mac_addr
[3];
816 arl_entry
[3] = mac_addr
[2];
817 arl_entry
[4] = mac_addr
[1];
818 arl_entry
[5] = mac_addr
[0];
820 if (robo
->devid
== DEVID5325
) {
821 /* Init the entry 1 of the bin */
822 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_ARL_E1
, \
823 arl_entry1
, sizeof(arl_entry1
));
824 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_VID_E1
, \
827 /* Init the entry 0 of the bin */
828 arl_entry
[6] = 0x8; /* Port Id: MII */
829 arl_entry
[7] = 0xc0; /* Static Entry, Valid */
831 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_ARL_E0
, \
832 arl_entry
, sizeof(arl_entry
));
833 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_MINDX
, \
834 arl_entry
, ETHER_ADDR_LEN
);
836 /* VLAN Control 4 Register (Page 0x34, Address 4) */
837 val8
= (1 << 6); /* drop frame with VID violation */
838 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_CTRL4
, &val8
, sizeof(val8
));
840 /* VLAN Control 5 Register (Page 0x34, Address 5) */
841 val8
= (1 << 3); /* drop frame when miss V table */
842 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_CTRL5
, &val8
, sizeof(val8
));
845 pdescsz
= sizeof(pdesc25
) / sizeof(pdesc_t
);
847 /* Initialize the MAC Addr Index Register */
848 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_MINDX
, \
849 arl_entry
, ETHER_ADDR_LEN
);
852 pdescsz
= sizeof(pdesc97
) / sizeof(pdesc_t
);
855 vid0
= getintvar(robo
->vars
, "vlan0tag");
857 printk(KERN_EMERG
"bcmrobo: vlan0tag/vid0=%d\n", vid0
);
860 /* setup each vlan. max. 16 vlans. */
861 /* force vlan id to be equal to vlan number */
862 for (vid
= 0; vid
< VLAN_NUMVLANS
; vid
++) {
863 char vlanports
[] = "vlanXXXXports";
864 char vlanvid
[] = "vlanXXXXvid";
865 char port
[] = "XXXX", *ports
, *next
, *cur
, *nvvid
;
871 /* no members if VLAN id is out of limitation */
872 if (vid
> VLAN_MAXVID
)
875 /* vlan ID mapping */
876 vid_map
= vid0
| vid
;
877 sprintf(vlanvid
, "vlan%dvid", vid
);
878 nvvid
= getvar(robo
->vars
, vlanvid
);
881 vid_map
= bcm_atoi(nvvid
);
882 if ((vid_map
< 1) || (vid_map
> 4094)) vid_map
= vid0
| vid
;
885 /* get vlan member ports from nvram */
886 sprintf(vlanports
, "vlan%dports", vid
);
887 ports
= getvar(robo
->vars
, vlanports
);
890 printk(KERN_EMERG
"bcmrobo: VLAN %d mapped to VID %d, ports='%s', %s='%s'\n",
891 vid
, vid_map
, (ports
!= NULL
)? ports
: "(unset)",
892 vlanvid
, (nvvid
!= NULL
)? nvvid
: "(unset)" );
895 /* In 539x vid == 0 us invalid?? */
896 if ((robo
->devid
!= DEVID5325
) && (vid
== 0)) {
898 ET_ERROR(("VID 0 is set in nvram, Ignoring\n"));
902 /* disable this vlan if not defined */
907 * setup each port in the vlan. cpu port needs special handing
908 * (with or without output tagging) to support linux/pmon/cfe.
910 for (cur
= ports
; cur
; cur
= next
) {
911 /* tokenize the port list */
914 next
= bcmstrstr(cur
, " ");
915 len
= next
? next
- cur
: strlen(cur
);
918 if (len
> sizeof(port
) - 1)
919 len
= sizeof(port
) - 1;
920 strncpy(port
, cur
, len
);
923 /* make sure port # is within the range */
924 pid
= bcm_atoi(port
);
925 if (pid
>= pdescsz
) {
926 ET_ERROR(("robo_config_vlan: port %d in vlan%dports is out "
927 "of range[0-%d]\n", pid
, vid
, pdescsz
));
931 /* build VLAN registers values */
933 if ((!pdesc
[pid
].cpu
&& !strchr(port
, FLAG_TAGGED
)) ||
934 (pdesc
[pid
].cpu
&& strchr(port
, FLAG_UNTAG
)))
936 untag
|= pdesc
[pid
].untag
;
938 member
|= pdesc
[pid
].member
;
940 /* set port tag - applies to untagged ingress frames */
941 /* Default Port Tag Register (Page 0x34, Address 0x10-0x1D) */
945 #define FL FLAG_UNTAG
947 if ((!pdesc
[pid
].cpu
&& !strchr(port
, FLAG_TAGGED
)) ||
949 val16
= ((0 << 13) | /* priority - always 0 */
950 vid_map
); /* vlan id */
952 printk( KERN_EMERG
"bcmrobo(map A) ->%d/%d\n", vid_map
, pid
);
954 robo
->ops
->write_reg(robo
, PAGE_VLAN
, pdesc
[pid
].ptagr
,
955 &val16
, sizeof(val16
));
959 /* Add static ARL entries */
960 if (robo
->devid
== DEVID5325
) {
962 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_VID_E0
, \
963 &val8
, sizeof(val8
));
964 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_VINDX
, \
965 &val8
, sizeof(val8
));
967 /* Write the entry */
969 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_CTRL
, \
970 &val8
, sizeof(val8
));
971 /* Wait for write to complete */
972 SPINWAIT((robo
->ops
->read_reg(robo
, PAGE_VTBL
, REG_VTBL_CTRL
, \
973 &val8
, sizeof(val8
)), ((val8
& 0x80) != 0)),
976 /* Set the VLAN Id in VLAN ID Index Register */
978 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_VINDX
, \
979 &val8
, sizeof(val8
));
981 /* Set the MAC addr and VLAN Id in ARL Table MAC/VID Entry 0
984 arl_entry
[6] = (vid_map
& 0xff);
985 arl_entry
[7] = (vid_map
>> 8);
987 printk( KERN_EMERG
"bcmrobo(map B) ->%d (%d/%d)\n",
988 vid_map
, arl_entry
[6], arl_entry
[7] );
990 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_ARL_E0
, \
991 arl_entry
, sizeof(arl_entry
));
993 /* Set the Static bit , Valid bit and Port ID fields in
994 * ARL Table Data Entry 0 Register
997 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_DAT_E0
, \
998 &val16
, sizeof(val16
));
1000 /* Clear the ARL_R/W bit and set the START/DONE bit in
1001 * the ARL Read/Write Control Register.
1004 robo
->ops
->write_reg(robo
, PAGE_VTBL
, REG_VTBL_CTRL
, \
1005 &val8
, sizeof(val8
));
1006 /* Wait for write to complete */
1007 SPINWAIT((robo
->ops
->read_reg(robo
, PAGE_VTBL
, REG_VTBL_CTRL
, \
1008 &val8
, sizeof(val8
)), ((val8
& 0x80) != 0)),
1013 /* setup VLAN ID and VLAN memberships */
1015 val32
= (untag
| /* untag enable */
1016 member
); /* vlan members */
1017 if (sb_chip(robo
->sbh
) == BCM5365_CHIP_ID
)
1019 /* VLAN Write Register (Page 0x34, Address 0x0A) */
1020 val32
= ((1 << 14) | /* valid write */
1021 (untag
<< 1) | /* untag enable */
1022 member
); /* vlan members */
1023 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_WRITE_5365
, &val32
,
1025 /* VLAN Table Access Register (Page 0x34, Address 0x08) */
1026 val16
= ((1 << 13) | /* start command */
1027 (1 << 12) | /* write state */
1028 vid_map
); /* vlan id */
1029 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_ACCESS_5365
, &val16
,
1032 printk( KERN_EMERG
"bcmrobo(map C/DEVID5365) ->%d\n", vid_map
);
1034 } else if (robo
->devid
== DEVID5325
) {
1035 val32
|= ((1 << 20) | /* valid write */
1036 ((vid_map
>> 4) << 12)); /* vlan id bit[11:4] */
1037 /* VLAN Write Register (Page 0x34, Address 0x08-0x0B) */
1038 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_WRITE
, &val32
,
1040 /* VLAN Table Access Register (Page 0x34, Address 0x06-0x07) */
1041 val16
= ((1 << 13) | /* start command */
1042 (1 << 12) | /* write state */
1043 vid_map
); /* vlan id */
1044 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_ACCESS
, &val16
,
1047 printk( KERN_EMERG
"bcmrobo(map C/DEVID5325) ->%d\n", vid_map
);
1050 uint8 vtble
, vtbli
, vtbla
;
1052 if (robo
->devid
== DEVID5395
) {
1053 vtble
= REG_VTBL_ENTRY_5395
;
1054 vtbli
= REG_VTBL_INDX_5395
;
1055 vtbla
= REG_VTBL_ACCESS_5395
;
1057 vtble
= REG_VTBL_ENTRY
;
1058 vtbli
= REG_VTBL_INDX
;
1059 vtbla
= REG_VTBL_ACCESS
;
1062 /* VLAN Table Entry Register (Page 0x05, Address 0x63-0x66/0x83-0x86) */
1063 robo
->ops
->write_reg(robo
, PAGE_VTBL
, vtble
, &val32
,
1065 /* VLAN Table Address Index Reg (Page 0x05, Address 0x61-0x62/0x81-0x82) */
1066 val16
= vid_map
; /* vlan id */
1068 printk( KERN_EMERG
"bcmrobo(map C) ->%d\n", vid_map
);
1070 robo
->ops
->write_reg(robo
, PAGE_VTBL
, vtbli
, &val16
,
1073 /* VLAN Table Access Register (Page 0x34, Address 0x60/0x80) */
1074 val8
= ((1 << 7) | /* start command */
1076 robo
->ops
->write_reg(robo
, PAGE_VTBL
, vtbla
, &val8
,
1081 if (robo
->devid
== DEVID5325
) {
1082 /* setup priority mapping - applies to tagged ingress frames */
1083 /* Priority Re-map Register (Page 0x34, Address 0x20-0x23) */
1084 val32
= ((0 << 0) | /* 0 -> 0 */
1085 (1 << 3) | /* 1 -> 1 */
1086 (2 << 6) | /* 2 -> 2 */
1087 (3 << 9) | /* 3 -> 3 */
1088 (4 << 12) | /* 4 -> 4 */
1089 (5 << 15) | /* 5 -> 5 */
1090 (6 << 18) | /* 6 -> 6 */
1091 (7 << 21)); /* 7 -> 7 */
1092 robo
->ops
->write_reg(robo
, PAGE_VLAN
, REG_VLAN_PMAP
, &val32
, sizeof(val32
));
1095 /* Disable management interface access */
1096 if (robo
->ops
->disable_mgmtif
)
1097 robo
->ops
->disable_mgmtif(robo
);
1102 /* Enable switching/forwarding */
1104 bcm_robo_enable_switch(robo_info_t
*robo
)
1106 int i
, max_port_ind
, ret
= 0;
1109 /* Enable management interface access */
1110 if (robo
->ops
->enable_mgmtif
)
1111 robo
->ops
->enable_mgmtif(robo
);
1113 /* Switch Mode register (Page 0, Address 0x0B) */
1114 robo
->ops
->read_reg(robo
, PAGE_CTRL
, REG_CTRL_MODE
, &val8
, sizeof(val8
));
1116 /* Bit 1 enables switching/forwarding */
1117 if (!(val8
& (1 << 1))) {
1118 /* Set unmanaged mode */
1119 val8
&= (~(1 << 0));
1121 /* Enable forwarding */
1123 robo
->ops
->write_reg(robo
, PAGE_CTRL
, REG_CTRL_MODE
, &val8
, sizeof(val8
));
1126 robo
->ops
->read_reg(robo
, PAGE_CTRL
, REG_CTRL_MODE
, &val8
, sizeof(val8
));
1127 if (!(val8
& (1 << 1))) {
1128 ET_ERROR(("robo_enable_switch: enabling forwarding failed\n"));
1132 /* No spanning tree for unmanaged mode */
1134 max_port_ind
= ((robo
->devid
== DEVID5398
) ? REG_CTRL_PORT7
: REG_CTRL_PORT4
);
1135 for (i
= REG_CTRL_PORT0
; i
<= max_port_ind
; i
++) {
1136 robo
->ops
->write_reg(robo
, PAGE_CTRL
, i
, &val8
, sizeof(val8
));
1140 /* Enable WAN port (#0) on the asus wl-500g deluxe boxes */
1141 if (sb_chip(robo
->sbh
) == BCM5365_CHIP_ID
) {
1143 robo
->ops
->write_reg(robo
, PAGE_CTRL
, REG_CTRL_PORT0
, &val8
, sizeof(val8
));
1146 /* Disable management interface access */
1147 if (robo
->ops
->disable_mgmtif
)
1148 robo
->ops
->disable_mgmtif(robo
);