2 * Broadcom BCM5325E/536x switch configuration module
4 * Copyright (C) 2005 Felix Fietkau <nbd@nbd.name>
5 * Copyright (C) 2008 Michael Buesch <mb@bu3sch.de>
6 * Based on 'robocfg' by Oleg I. Vdovikin
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 #include <linux/module.h>
25 #include <linux/init.h>
27 #include <linux/if_arp.h>
28 #include <linux/sockios.h>
29 #include <linux/ethtool.h>
30 #include <linux/mii.h>
31 #include <linux/delay.h>
32 #include <asm/uaccess.h>
34 #include "switch-core.h"
38 #include <bcm47xx_nvram.h>
41 #define DRIVER_NAME "bcm53xx"
42 #define DRIVER_VERSION "0.02"
43 #define PFX "roboswitch: "
45 #define ROBO_PHY_ADDR 0x1E /* robo switch phy address */
46 #define ROBO_PHY_ADDR_TG3 0x01 /* Tigon3 PHY address */
47 #define ROBO_PHY_ADDR_BCM63XX 0x00 /* BCM63XX PHY address */
50 #define REG_MII_PAGE 0x10 /* MII Page register */
51 #define REG_MII_ADDR 0x11 /* MII Address register */
52 #define REG_MII_DATA0 0x18 /* MII Data register 0 */
54 #define REG_MII_PAGE_ENABLE 1
55 #define REG_MII_ADDR_WRITE 1
56 #define REG_MII_ADDR_READ 2
58 /* Robo device ID register (in ROBO_MGMT_PAGE) */
59 #define ROBO_DEVICE_ID 0x30
60 #define ROBO_DEVICE_ID_5325 0x25 /* Faked */
61 #define ROBO_DEVICE_ID_5395 0x95
62 #define ROBO_DEVICE_ID_5397 0x97
63 #define ROBO_DEVICE_ID_5398 0x98
64 #define ROBO_DEVICE_ID_53115 0x3115
66 /* Private et.o ioctls */
67 #define SIOCGETCPHYRD (SIOCDEVPRIVATE + 9)
68 #define SIOCSETCPHYWR (SIOCDEVPRIVATE + 10)
70 /* Data structure for a Roboswitch device. */
72 char *device
; /* The device name string (ethX) */
73 u16 devid
; /* ROBO_DEVICE_ID_53xx */
75 u8 gmii
; /* gigabit mii */
77 struct net_device
*dev
;
78 unsigned char port
[6];
81 /* Currently we can only have one device in the system. */
82 static struct robo_switch robo
;
85 static int do_ioctl(int cmd
)
87 mm_segment_t old_fs
= get_fs();
91 ret
= robo
.dev
->netdev_ops
->ndo_do_ioctl(robo
.dev
, &robo
.ifr
, cmd
);
97 static u16
mdio_read(__u16 phy_id
, __u8 reg
)
99 struct mii_ioctl_data
*mii
= if_mii(&robo
.ifr
);
102 mii
->phy_id
= phy_id
;
105 err
= do_ioctl(SIOCGMIIREG
);
107 printk(KERN_ERR PFX
"failed to read mdio reg %i with err %i.\n", reg
, err
);
115 static void mdio_write(__u16 phy_id
, __u8 reg
, __u16 val
)
117 struct mii_ioctl_data
*mii
= if_mii(&robo
.ifr
);
120 mii
->phy_id
= phy_id
;
124 err
= do_ioctl(SIOCSMIIREG
);
126 printk(KERN_ERR PFX
"failed to write mdio reg: %i with err %i.\n", reg
, err
);
131 static int robo_reg(__u8 page
, __u8 reg
, __u8 op
)
135 /* set page number */
136 mdio_write(ROBO_PHY_ADDR
, REG_MII_PAGE
,
137 (page
<< 8) | REG_MII_PAGE_ENABLE
);
139 /* set register address */
140 mdio_write(ROBO_PHY_ADDR
, REG_MII_ADDR
,
143 /* check if operation completed */
145 if ((mdio_read(ROBO_PHY_ADDR
, REG_MII_ADDR
) & 3) == 0)
149 printk(KERN_ERR PFX
"timeout in robo_reg on page %i and reg %i with op %i.\n", page
, reg
, op
);
155 static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
159 robo_reg(page, reg, REG_MII_ADDR_READ);
161 for (i = 0; i < count; i++)
162 val[i] = mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + i);
166 static __u16
robo_read16(__u8 page
, __u8 reg
)
168 robo_reg(page
, reg
, REG_MII_ADDR_READ
);
170 return mdio_read(ROBO_PHY_ADDR
, REG_MII_DATA0
);
173 static __u32
robo_read32(__u8 page
, __u8 reg
)
175 robo_reg(page
, reg
, REG_MII_ADDR_READ
);
177 return mdio_read(ROBO_PHY_ADDR
, REG_MII_DATA0
) |
178 (mdio_read(ROBO_PHY_ADDR
, REG_MII_DATA0
+ 1) << 16);
181 static void robo_write16(__u8 page
, __u8 reg
, __u16 val16
)
184 mdio_write(ROBO_PHY_ADDR
, REG_MII_DATA0
, val16
);
186 robo_reg(page
, reg
, REG_MII_ADDR_WRITE
);
189 static void robo_write32(__u8 page
, __u8 reg
, __u32 val32
)
192 mdio_write(ROBO_PHY_ADDR
, REG_MII_DATA0
, val32
& 0xFFFF);
193 mdio_write(ROBO_PHY_ADDR
, REG_MII_DATA0
+ 1, val32
>> 16);
195 robo_reg(page
, reg
, REG_MII_ADDR_WRITE
);
198 /* checks that attached switch is 5325/5352/5354/5356/5357/53115 */
199 static int robo_vlan5350(__u32 phyid
)
201 /* set vlan access id to 15 and read it back */
203 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_TABLE_ACCESS_5350
, val16
);
205 /* 5365 will refuse this as it does not have this reg */
206 if (robo_read16(ROBO_VLAN_PAGE
, ROBO_VLAN_TABLE_ACCESS_5350
) != val16
)
209 if (mdio_read(0, ROBO_MII_STAT
) & 0x0100)
210 robo
.gmii
= ((mdio_read(0, 0x0f) & 0xf000) != 0);
212 if (robo
.gmii
&& robo_read32(ROBO_STAT_PAGE
, ROBO_LSA_IM_PORT
) != 0) {
213 robo_write16(ROBO_ARLIO_PAGE
, ROBO_VTBL_INDX_5395
, val16
);
214 robo_write16(ROBO_ARLIO_PAGE
, ROBO_VTBL_ACCESS_5395
,
215 (1 << 7) /* start */ | 1 /* read */);
216 if (robo_read16(ROBO_ARLIO_PAGE
, ROBO_VTBL_ACCESS_5395
) == 1 &&
217 robo_read16(ROBO_ARLIO_PAGE
, ROBO_VTBL_INDX_5395
) == val16
)
220 /* dirty trick for 5356/5357 */
221 if ((phyid
& 0xfff0ffff ) == 0x5da00362 ||
222 (phyid
& 0xfff0ffff ) == 0x5e000362)
228 static int robo_switch_enable(void)
230 unsigned int i
, last_port
;
232 #ifdef CONFIG_BCM47XX
236 val
= robo_read16(ROBO_CTRL_PAGE
, ROBO_SWITCH_MODE
);
237 if (!(val
& (1 << 1))) {
240 /* With forwarding */
242 robo_write16(ROBO_CTRL_PAGE
, ROBO_SWITCH_MODE
, val
);
243 val
= robo_read16(ROBO_CTRL_PAGE
, ROBO_SWITCH_MODE
);
244 if (!(val
& (1 << 1))) {
245 printk(KERN_ERR PFX
"Failed to enable switch\n");
249 last_port
= (robo
.devid
== ROBO_DEVICE_ID_5398
) ?
250 ROBO_PORT6_CTRL
: ROBO_PORT3_CTRL
;
251 for (i
= ROBO_PORT0_CTRL
; i
< last_port
+ 1; i
++)
252 robo_write16(ROBO_CTRL_PAGE
, i
, 0);
255 #ifdef CONFIG_BCM47XX
256 /* WAN port LED, except for Netgear WGT634U */
257 if (bcm47xx_nvram_getenv("nvram_type", buf
, sizeof(buf
)) >= 0) {
258 if (strcmp(buf
, "cfe") != 0)
259 robo_write16(ROBO_CTRL_PAGE
, 0x16, 0x1F);
265 static void robo_switch_reset(void)
267 if ((robo
.devid
== ROBO_DEVICE_ID_5395
) ||
268 (robo
.devid
== ROBO_DEVICE_ID_5397
) ||
269 (robo
.devid
== ROBO_DEVICE_ID_5398
)) {
270 /* Trigger a software reset. */
271 robo_write16(ROBO_CTRL_PAGE
, 0x79, 0x83);
273 robo_write16(ROBO_CTRL_PAGE
, 0x79, 0);
277 static int robo_probe(char *devname
)
282 struct mii_ioctl_data
*mii
;
284 printk(KERN_INFO PFX
"Probing device '%s'\n", devname
);
285 strcpy(robo
.ifr
.ifr_name
, devname
);
287 if ((robo
.dev
= dev_get_by_name(&init_net
, devname
)) == NULL
) {
288 printk(KERN_ERR PFX
"No such device\n");
291 if (!robo
.dev
->netdev_ops
|| !robo
.dev
->netdev_ops
->ndo_do_ioctl
) {
292 printk(KERN_ERR PFX
"ndo_do_ioctl not implemented in ethernet driver\n");
296 robo
.device
= devname
;
297 for (i
= 0; i
< 5; i
++)
301 /* try access using MII ioctls - get phy address */
302 err
= do_ioctl(SIOCGMIIPHY
);
304 printk(KERN_ERR PFX
"error (%i) while accessing MII phy registers with ioctls\n", err
);
308 /* got phy address check for robo address */
309 mii
= if_mii(&robo
.ifr
);
310 if ((mii
->phy_id
!= ROBO_PHY_ADDR
) &&
311 (mii
->phy_id
!= ROBO_PHY_ADDR_BCM63XX
) &&
312 (mii
->phy_id
!= ROBO_PHY_ADDR_TG3
)) {
313 printk(KERN_ERR PFX
"Invalid phy address (%d)\n", mii
->phy_id
);
317 phyid
= mdio_read(ROBO_PHY_ADDR
, 0x2) |
318 (mdio_read(ROBO_PHY_ADDR
, 0x3) << 16);
320 if (phyid
== 0xffffffff || phyid
== 0x55210022) {
321 printk(KERN_ERR PFX
"No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid
);
325 /* Get the device ID */
326 for (i
= 0; i
< 10; i
++) {
327 robo
.devid
= robo_read16(ROBO_MGMT_PAGE
, ROBO_DEVICE_ID
);
333 robo
.devid
= ROBO_DEVICE_ID_5325
; /* Fake it */
334 robo
.is_5350
= robo_vlan5350(phyid
);
337 err
= robo_switch_enable();
342 printk(KERN_INFO PFX
"found a 5%s%x!%s at %s\n", robo
.devid
& 0xff00 ? "" : "3", robo
.devid
,
343 robo
.is_5350
? " It's a 5350." : "", devname
);
354 static int handle_vlan_port_read(void *driver
, char *buf
, int nr
)
360 val16
= (nr
) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
364 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_TABLE_ACCESS_5350
, val16
);
366 val32
= robo_read32(ROBO_VLAN_PAGE
, ROBO_VLAN_READ
);
367 if ((val32
& (1 << 20)) /* valid */) {
368 for (j
= 0; j
< 6; j
++) {
369 if (val32
& (1 << j
)) {
370 len
+= sprintf(buf
+ len
, "%d", j
);
371 if (val32
& (1 << (j
+ 6))) {
372 if (j
== 5) buf
[len
++] = 'u';
375 if (robo_read16(ROBO_VLAN_PAGE
, ROBO_VLAN_PORT0_DEF_TAG
+ (j
<< 1)) == nr
)
381 len
+= sprintf(buf
+ len
, "\n");
384 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_TABLE_ACCESS
, val16
);
386 val16
= robo_read16(ROBO_VLAN_PAGE
, ROBO_VLAN_READ
);
387 if ((val16
& (1 << 14)) /* valid */) {
388 for (j
= 0; j
< 6; j
++) {
389 if (val16
& (1 << j
)) {
390 len
+= sprintf(buf
+ len
, "%d", j
);
391 if (val16
& (1 << (j
+ 7))) {
392 if (j
== 5) buf
[len
++] = 'u';
395 if (robo_read16(ROBO_VLAN_PAGE
, ROBO_VLAN_PORT0_DEF_TAG
+ (j
<< 1)) == nr
)
401 len
+= sprintf(buf
+ len
, "\n");
410 static int handle_vlan_port_write(void *driver
, char *buf
, int nr
)
412 switch_driver
*d
= (switch_driver
*) driver
;
413 switch_vlan_config
*c
= switch_parse_vlan(d
, buf
);
420 for (j
= 0; j
< d
->ports
; j
++) {
421 if ((c
->untag
| c
->pvid
) & (1 << j
))
422 /* change default vlan tag */
423 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_PORT0_DEF_TAG
+ (j
<< 1), nr
);
426 /* write config now */
428 if (robo
.devid
!= ROBO_DEVICE_ID_5325
) {
429 __u8 regoff
= ((robo
.devid
== ROBO_DEVICE_ID_5395
) ||
430 (robo
.devid
== ROBO_DEVICE_ID_53115
)) ? 0x20 : 0;
432 robo_write32(ROBO_ARLIO_PAGE
, 0x63 + regoff
, (c
->untag
<< 9) | c
->port
);
433 robo_write16(ROBO_ARLIO_PAGE
, 0x61 + regoff
, nr
);
434 robo_write16(ROBO_ARLIO_PAGE
, 0x60 + regoff
, 1 << 7);
439 val16
= (nr
) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
441 robo_write32(ROBO_VLAN_PAGE
, ROBO_VLAN_WRITE_5350
,
442 (1 << 20) /* valid */ | (c
->untag
<< 6) | c
->port
);
443 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_TABLE_ACCESS_5350
, val16
);
445 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_WRITE
,
446 (1 << 14) /* valid */ | (c
->untag
<< 7) | c
->port
);
447 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_TABLE_ACCESS
, val16
);
454 #define set_switch(state) \
455 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
457 static int handle_enable_read(void *driver
, char *buf
, int nr
)
459 return sprintf(buf
, "%d\n", (((robo_read16(ROBO_CTRL_PAGE
, ROBO_SWITCH_MODE
) & 2) == 2) ? 1 : 0));
462 static int handle_enable_write(void *driver
, char *buf
, int nr
)
464 set_switch(buf
[0] == '1');
469 static int handle_port_enable_read(void *driver
, char *buf
, int nr
)
471 return sprintf(buf
, "%d\n", ((robo_read16(ROBO_CTRL_PAGE
, robo
.port
[nr
]) & 3) == 3 ? 0 : 1));
474 static int handle_port_enable_write(void *driver
, char *buf
, int nr
)
479 val16
= 3; /* disabled */
480 else if (buf
[0] == '1')
481 val16
= 0; /* enabled */
485 robo_write16(ROBO_CTRL_PAGE
, robo
.port
[nr
],
486 (robo_read16(ROBO_CTRL_PAGE
, robo
.port
[nr
]) & ~3) | val16
);
491 static int handle_port_media_read(void *driver
, char *buf
, int nr
)
493 u16 bmcr
= mdio_read(robo
.port
[nr
], MII_BMCR
);
496 if (bmcr
& BMCR_ANENABLE
)
497 media
= SWITCH_MEDIA_AUTO
;
499 if (bmcr
& BMCR_SPEED1000
)
500 media
= SWITCH_MEDIA_1000
;
501 else if (bmcr
& BMCR_SPEED100
)
502 media
= SWITCH_MEDIA_100
;
506 if (bmcr
& BMCR_FULLDPLX
)
507 media
|= SWITCH_MEDIA_FD
;
510 len
= switch_print_media(buf
, media
);
511 return len
+ sprintf(buf
+ len
, "\n");
514 static int handle_port_media_write(void *driver
, char *buf
, int nr
)
516 int media
= switch_parse_media(buf
);
519 if (media
& SWITCH_MEDIA_AUTO
)
520 bmcr
= BMCR_ANENABLE
| BMCR_ANRESTART
;
522 if (media
& SWITCH_MEDIA_1000
) {
525 bmcr
= BMCR_SPEED1000
;
527 else if (media
& SWITCH_MEDIA_100
)
528 bmcr
= BMCR_SPEED100
;
532 if (media
& SWITCH_MEDIA_FD
)
533 bmcr
|= BMCR_FULLDPLX
;
536 bmcr_mask
= ~(BMCR_SPEED1000
| BMCR_SPEED100
| BMCR_FULLDPLX
| BMCR_ANENABLE
| BMCR_ANRESTART
);
537 mdio_write(robo
.port
[nr
], MII_BMCR
,
538 (mdio_read(robo
.port
[nr
], MII_BMCR
) & bmcr_mask
) | bmcr
);
543 static int handle_enable_vlan_read(void *driver
, char *buf
, int nr
)
545 return sprintf(buf
, "%d\n", (((robo_read16(ROBO_VLAN_PAGE
, ROBO_VLAN_CTRL0
) & (1 << 7)) == (1 << 7)) ? 1 : 0));
548 static int handle_enable_vlan_write(void *driver
, char *buf
, int nr
)
550 int disable
= ((buf
[0] != '1') ? 1 : 0);
552 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_CTRL0
, disable
? 0 :
553 (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
554 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_CTRL1
, disable
? 0 :
555 (robo
.devid
== ROBO_DEVICE_ID_5325
? (1 << 1) :
556 0) | (1 << 2) | (1 << 3)); /* RSV multicast */
558 if (robo
.devid
!= ROBO_DEVICE_ID_5325
)
561 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_CTRL4
, disable
? 0 :
562 (1 << 6) /* drop invalid VID frames */);
563 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_CTRL5
, disable
? 0 :
564 (1 << 3) /* drop miss V table frames */);
569 static int handle_reset(void *driver
, char *buf
, int nr
)
571 switch_driver
*d
= (switch_driver
*) driver
;
575 /* disable switching */
579 for (j
= 0; j
<= ((robo
.is_5350
) ? VLAN_ID_MAX5350
: VLAN_ID_MAX
); j
++) {
580 /* write config now */
581 val16
= (j
) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
583 robo_write32(ROBO_VLAN_PAGE
, ROBO_VLAN_WRITE_5350
, 0);
585 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_WRITE
, 0);
586 robo_write16(ROBO_VLAN_PAGE
, robo
.is_5350
? ROBO_VLAN_TABLE_ACCESS_5350
:
587 ROBO_VLAN_TABLE_ACCESS
,
591 /* reset ports to a known good state */
592 for (j
= 0; j
< d
->ports
; j
++) {
593 robo_write16(ROBO_CTRL_PAGE
, robo
.port
[j
], 0x0000);
594 robo_write16(ROBO_VLAN_PAGE
, ROBO_VLAN_PORT0_DEF_TAG
+ (j
<< 1), 0);
597 /* enable switching */
601 handle_enable_vlan_write(driver
, "1", 0);
606 static int __init
robo_init(void)
611 device
= strdup("ethX");
612 for (device
[3] = '0'; (device
[3] <= '3') && notfound
; device
[3]++) {
613 if (! switch_device_registered (device
))
614 notfound
= robo_probe(device
);
622 static const switch_config cfg
[] = {
625 .read
= handle_enable_read
,
626 .write
= handle_enable_write
628 .name
= "enable_vlan",
629 .read
= handle_enable_vlan_read
,
630 .write
= handle_enable_vlan_write
634 .write
= handle_reset
637 static const switch_config port
[] = {
640 .read
= handle_port_enable_read
,
641 .write
= handle_port_enable_write
644 .read
= handle_port_media_read
,
645 .write
= handle_port_media_write
648 static const switch_config vlan
[] = {
651 .read
= handle_vlan_port_read
,
652 .write
= handle_vlan_port_write
655 switch_driver driver
= {
657 .version
= DRIVER_VERSION
,
662 .driver_handlers
= cfg
,
663 .port_handlers
= port
,
664 .vlan_handlers
= vlan
,
666 if (robo
.devid
!= ROBO_DEVICE_ID_5325
) {
671 return switch_register_driver(&driver
);
675 static void __exit
robo_exit(void)
677 switch_unregister_driver(DRIVER_NAME
);
684 MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
685 MODULE_LICENSE("GPL");
687 module_init(robo_init
);
688 module_exit(robo_exit
);