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"
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 */
76 struct net_device *dev;
77 unsigned char port[6];
80 /* Currently we can only have one device in the system. */
81 static struct robo_switch robo;
84 static int do_ioctl(int cmd)
86 mm_segment_t old_fs = get_fs();
90 ret = robo.dev->netdev_ops->ndo_do_ioctl(robo.dev, &robo.ifr, cmd);
96 static u16 mdio_read(__u16 phy_id, __u8 reg)
98 struct mii_ioctl_data *mii = if_mii(&robo.ifr);
102 if (do_ioctl(SIOCGMIIREG) < 0) {
104 "[%s:%d] SIOCGMIIREG failed!\n", __FILE__, __LINE__);
112 static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
114 struct mii_ioctl_data *mii = if_mii(&robo.ifr);
116 mii->phy_id = phy_id;
120 if (do_ioctl(SIOCSMIIREG) < 0) {
122 "[%s:%d] SIOCSMIIREG failed!\n", __FILE__, __LINE__);
127 static int robo_reg(__u8 page, __u8 reg, __u8 op)
131 /* set page number */
132 mdio_write(ROBO_PHY_ADDR, REG_MII_PAGE,
133 (page << 8) | REG_MII_PAGE_ENABLE);
135 /* set register address */
136 mdio_write(ROBO_PHY_ADDR, REG_MII_ADDR,
139 /* check if operation completed */
141 if ((mdio_read(ROBO_PHY_ADDR, REG_MII_ADDR) & 3) == 0)
145 printk(KERN_ERR PFX "[%s:%d] timeout in robo_reg!\n", __FILE__, __LINE__);
151 static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
155 robo_reg(page, reg, REG_MII_ADDR_READ);
157 for (i = 0; i < count; i++)
158 val[i] = mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + i);
162 static __u16 robo_read16(__u8 page, __u8 reg)
164 robo_reg(page, reg, REG_MII_ADDR_READ);
166 return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0);
169 static __u32 robo_read32(__u8 page, __u8 reg)
171 robo_reg(page, reg, REG_MII_ADDR_READ);
173 return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0) +
174 (mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + 1) << 16);
177 static void robo_write16(__u8 page, __u8 reg, __u16 val16)
180 mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val16);
182 robo_reg(page, reg, REG_MII_ADDR_WRITE);
185 static void robo_write32(__u8 page, __u8 reg, __u32 val32)
188 mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 65535);
189 mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0 + 1, val32 >> 16);
191 robo_reg(page, reg, REG_MII_ADDR_WRITE);
194 /* checks that attached switch is 5325E/5350 */
195 static int robo_vlan5350(void)
197 /* set vlan access id to 15 and read it back */
199 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
201 /* 5365 will refuse this as it does not have this reg */
202 return (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) == val16);
205 static int robo_switch_enable(void)
207 unsigned int i, last_port;
209 #ifdef CONFIG_BCM47XX
213 val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
214 if (!(val & (1 << 1))) {
217 /* With forwarding */
219 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
220 val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
221 if (!(val & (1 << 1))) {
222 printk("Failed to enable switch\n");
226 last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
227 ROBO_PORT6_CTRL : ROBO_PORT3_CTRL;
228 for (i = ROBO_PORT0_CTRL; i < last_port + 1; i++)
229 robo_write16(ROBO_CTRL_PAGE, i, 0);
232 #ifdef CONFIG_BCM47XX
233 /* WAN port LED, except for Netgear WGT634U */
234 if (nvram_getenv("nvram_type", buf, sizeof(buf)) >= 0) {
235 if (strcmp(buf, "cfe") != 0)
236 robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
242 static void robo_switch_reset(void)
244 if ((robo.devid == ROBO_DEVICE_ID_5395) ||
245 (robo.devid == ROBO_DEVICE_ID_5397) ||
246 (robo.devid == ROBO_DEVICE_ID_5398)) {
247 /* Trigger a software reset. */
248 robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
250 robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
254 static int robo_probe(char *devname)
260 printk(KERN_INFO PFX "Probing device %s: ", devname);
261 strcpy(robo.ifr.ifr_name, devname);
263 if ((robo.dev = dev_get_by_name(&init_net, devname)) == NULL) {
264 printk("No such device\n");
268 robo.device = devname;
269 for (i = 0; i < 5; i++)
273 /* try access using MII ioctls - get phy address */
274 if (do_ioctl(SIOCGMIIPHY) < 0) {
275 printk("error while accessing MII phy registers with ioctls\n");
279 /* got phy address check for robo address */
280 struct mii_ioctl_data *mii = if_mii(&robo.ifr);
281 if ((mii->phy_id != ROBO_PHY_ADDR) &&
282 (mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
283 (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
284 printk("Invalid phy address (%d)\n", mii->phy_id);
288 phyid = mdio_read(ROBO_PHY_ADDR, 0x2) |
289 (mdio_read(ROBO_PHY_ADDR, 0x3) << 16);
291 if (phyid == 0xffffffff || phyid == 0x55210022) {
292 printk("No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid);
296 /* Get the device ID */
297 for (i = 0; i < 10; i++) {
298 robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
304 robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
305 robo.is_5350 = robo_vlan5350();
308 err = robo_switch_enable();
313 printk("found a 5%s%x!%s\n", robo.devid & 0xff00 ? "" : "3", robo.devid,
314 robo.is_5350 ? " It's a 5350." : "");
325 static int handle_vlan_port_read(void *driver, char *buf, int nr)
331 val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
335 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
337 val32 = robo_read32(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
338 if ((val32 & (1 << 20)) /* valid */) {
339 for (j = 0; j < 6; j++) {
340 if (val32 & (1 << j)) {
341 len += sprintf(buf + len, "%d", j);
342 if (val32 & (1 << (j + 6))) {
343 if (j == 5) buf[len++] = 'u';
346 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
352 len += sprintf(buf + len, "\n");
355 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
357 val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
358 if ((val16 & (1 << 14)) /* valid */) {
359 for (j = 0; j < 6; j++) {
360 if (val16 & (1 << j)) {
361 len += sprintf(buf + len, "%d", j);
362 if (val16 & (1 << (j + 7))) {
363 if (j == 5) buf[len++] = 'u';
366 if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
372 len += sprintf(buf + len, "\n");
381 static int handle_vlan_port_write(void *driver, char *buf, int nr)
383 switch_driver *d = (switch_driver *) driver;
384 switch_vlan_config *c = switch_parse_vlan(d, buf);
391 for (j = 0; j < d->ports; j++) {
392 if ((c->untag | c->pvid) & (1 << j))
393 /* change default vlan tag */
394 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
397 /* write config now */
399 if (robo.devid != ROBO_DEVICE_ID_5325) {
400 __u8 regoff = ((robo.devid == ROBO_DEVICE_ID_5395) ||
401 (robo.devid == ROBO_DEVICE_ID_53115)) ? 0x20 : 0;
403 robo_write32(ROBO_ARLIO_PAGE, 0x63 + regoff, (c->untag << 9) | c->port);
404 robo_write16(ROBO_ARLIO_PAGE, 0x61 + regoff, nr);
405 robo_write16(ROBO_ARLIO_PAGE, 0x60 + regoff, 1 << 7);
410 val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
412 robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350,
413 (1 << 20) /* valid */ | (c->untag << 6) | c->port);
414 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
416 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE,
417 (1 << 14) /* valid */ | (c->untag << 7) | c->port);
418 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
425 #define set_switch(state) \
426 robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
428 static int handle_enable_read(void *driver, char *buf, int nr)
430 return sprintf(buf, "%d\n", (((robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2) == 2) ? 1 : 0));
433 static int handle_enable_write(void *driver, char *buf, int nr)
435 set_switch(buf[0] == '1');
440 static int handle_enable_vlan_read(void *driver, char *buf, int nr)
442 return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
445 static int handle_enable_vlan_write(void *driver, char *buf, int nr)
447 int disable = ((buf[0] != '1') ? 1 : 0);
449 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
450 (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
451 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
452 (robo.devid == ROBO_DEVICE_ID_5325 ? (1 << 1) :
453 0) | (1 << 2) | (1 << 3)); /* RSV multicast */
455 if (robo.devid != ROBO_DEVICE_ID_5325)
458 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
459 (1 << 6) /* drop invalid VID frames */);
460 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
461 (1 << 3) /* drop miss V table frames */);
466 static int handle_reset(void *driver, char *buf, int nr)
468 switch_driver *d = (switch_driver *) driver;
472 /* disable switching */
476 for (j = 0; j <= ((robo.is_5350) ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++) {
477 /* write config now */
478 val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
480 robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350, 0);
482 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
483 robo_write16(ROBO_VLAN_PAGE, robo.is_5350 ? ROBO_VLAN_TABLE_ACCESS_5350 :
484 ROBO_VLAN_TABLE_ACCESS,
488 /* reset ports to a known good state */
489 for (j = 0; j < d->ports; j++) {
490 robo_write16(ROBO_CTRL_PAGE, robo.port[j], 0x0000);
491 robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), 0);
494 /* enable switching */
498 handle_enable_vlan_write(driver, "1", 0);
503 static int __init robo_init(void)
508 device = strdup("ethX");
509 for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
510 if (! switch_device_registered (device))
511 notfound = robo_probe(device);
519 static const switch_config cfg[] = {
522 .read = handle_enable_read,
523 .write = handle_enable_write
525 .name = "enable_vlan",
526 .read = handle_enable_vlan_read,
527 .write = handle_enable_vlan_write
531 .write = handle_reset
534 static const switch_config vlan[] = {
537 .read = handle_vlan_port_read,
538 .write = handle_vlan_port_write
541 switch_driver driver = {
543 .version = DRIVER_VERSION,
548 .driver_handlers = cfg,
549 .port_handlers = NULL,
550 .vlan_handlers = vlan,
552 if (robo.devid != ROBO_DEVICE_ID_5325) {
557 return switch_register_driver(&driver);
561 static void __exit robo_exit(void)
563 switch_unregister_driver(DRIVER_NAME);
570 MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
571 MODULE_LICENSE("GPL");
573 module_init(robo_init);
574 module_exit(robo_exit);