* Broadcom BCM5325E/536x switch configuration module
*
* Copyright (C) 2005 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2008 Michael Buesch <mb@bu3sch.de>
* Based on 'robocfg' by Oleg I. Vdovikin
*
* This program is free software; you can redistribute it and/or
#include <linux/sockios.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
+#include <linux/delay.h>
#include <asm/uaccess.h>
#include "switch-core.h"
#include "etc53xx.h"
#define DRIVER_NAME "bcm53xx"
-#define DRIVER_VERSION "0.01"
+#define DRIVER_VERSION "0.02"
+#define PFX "roboswitch: "
-#define ROBO_PHY_ADDR 0x1E /* robo switch phy address */
+#define ROBO_PHY_ADDR 0x1E /* robo switch phy address */
+#define ROBO_PHY_ADDR_TG3 0x01 /* Tigon3 PHY address */
/* MII registers */
#define REG_MII_PAGE 0x10 /* MII Page register */
#define REG_MII_ADDR_WRITE 1
#define REG_MII_ADDR_READ 2
+/* Robo device ID register (in ROBO_MGMT_PAGE) */
+#define ROBO_DEVICE_ID 0x30
+#define ROBO_DEVICE_ID_5325 0x25 /* Faked */
+#define ROBO_DEVICE_ID_5395 0x95
+#define ROBO_DEVICE_ID_5397 0x97
+#define ROBO_DEVICE_ID_5398 0x98
+
/* Private et.o ioctls */
#define SIOCGETCPHYRD (SIOCDEVPRIVATE + 9)
#define SIOCSETCPHYWR (SIOCDEVPRIVATE + 10)
-static char *device;
-static int use_et = 0;
-static int is_5350 = 0;
-static struct ifreq ifr;
-static struct net_device *dev;
-static unsigned char port[6] = { 0, 1, 2, 3, 4, 8 };
+
+/* Data structure for a Roboswitch device. */
+struct robo_switch {
+ char *device; /* The device name string (ethX) */
+ u16 devid; /* ROBO_DEVICE_ID_53xx */
+ bool use_et;
+ bool is_5350;
+ u8 phy_addr; /* PHY address of the device */
+ struct ifreq ifr;
+ struct net_device *dev;
+ unsigned char port[6];
+};
+
+/* Currently we can only have one device in the system. */
+static struct robo_switch robo;
+
static int do_ioctl(int cmd, void *buf)
{
int ret;
if (buf != NULL)
- ifr.ifr_data = (caddr_t) buf;
+ robo.ifr.ifr_data = (caddr_t) buf;
set_fs(KERNEL_DS);
- ret = dev->do_ioctl(dev, &ifr, cmd);
+ ret = robo.dev->do_ioctl(robo.dev, &robo.ifr, cmd);
set_fs(old_fs);
return ret;
static u16 mdio_read(__u16 phy_id, __u8 reg)
{
- if (use_et) {
+ if (robo.use_et) {
int args[2] = { reg };
-
- if (phy_id != ROBO_PHY_ADDR) {
- printk(
+
+ if (phy_id != robo.phy_addr) {
+ printk(KERN_ERR PFX
"Access to real 'phy' registers unavaliable.\n"
"Upgrade kernel driver.\n");
if (do_ioctl(SIOCGETCPHYRD, &args) < 0) {
- printk("[%s:%d] SIOCGETCPHYRD failed!\n", __FILE__, __LINE__);
+ printk(KERN_ERR PFX
+ "[%s:%d] SIOCGETCPHYRD failed!\n", __FILE__, __LINE__);
return 0xffff;
}
return args[1];
} else {
- struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &ifr.ifr_data;
+ struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &robo.ifr.ifr_data;
mii->phy_id = phy_id;
mii->reg_num = reg;
if (do_ioctl(SIOCGMIIREG, NULL) < 0) {
- printk("[%s:%d] SIOCGMIIREG failed!\n", __FILE__, __LINE__);
+ printk(KERN_ERR PFX
+ "[%s:%d] SIOCGMIIREG failed!\n", __FILE__, __LINE__);
return 0xffff;
}
static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
{
- if (use_et) {
+ if (robo.use_et) {
int args[2] = { reg, val };
- if (phy_id != ROBO_PHY_ADDR) {
- printk(
+ if (phy_id != robo.phy_addr) {
+ printk(KERN_ERR PFX
"Access to real 'phy' registers unavaliable.\n"
"Upgrade kernel driver.\n");
}
if (do_ioctl(SIOCSETCPHYWR, args) < 0) {
- printk("[%s:%d] SIOCGETCPHYWR failed!\n", __FILE__, __LINE__);
+ printk(KERN_ERR PFX
+ "[%s:%d] SIOCGETCPHYWR failed!\n", __FILE__, __LINE__);
return;
}
} else {
- struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&ifr.ifr_data;
+ struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&robo.ifr.ifr_data;
mii->phy_id = phy_id;
mii->reg_num = reg;
mii->val_in = val;
if (do_ioctl(SIOCSMIIREG, NULL) < 0) {
- printk("[%s:%d] SIOCSMIIREG failed!\n", __FILE__, __LINE__);
+ printk(KERN_ERR PFX
+ "[%s:%d] SIOCSMIIREG failed!\n", __FILE__, __LINE__);
return;
}
}
int i = 3;
/* set page number */
- mdio_write(ROBO_PHY_ADDR, REG_MII_PAGE,
+ mdio_write(robo.phy_addr, REG_MII_PAGE,
(page << 8) | REG_MII_PAGE_ENABLE);
/* set register address */
- mdio_write(ROBO_PHY_ADDR, REG_MII_ADDR,
+ mdio_write(robo.phy_addr, REG_MII_ADDR,
(reg << 8) | op);
/* check if operation completed */
while (i--) {
- if ((mdio_read(ROBO_PHY_ADDR, REG_MII_ADDR) & 3) == 0)
+ if ((mdio_read(robo.phy_addr, REG_MII_ADDR) & 3) == 0)
return 0;
}
- printk("[%s:%d] timeout in robo_reg!\n", __FILE__, __LINE__);
+ printk(KERN_ERR PFX "[%s:%d] timeout in robo_reg!\n", __FILE__, __LINE__);
return 0;
}
robo_reg(page, reg, REG_MII_ADDR_READ);
for (i = 0; i < count; i++)
- val[i] = mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + i);
+ val[i] = mdio_read(robo.phy_addr, REG_MII_DATA0 + i);
}
*/
{
robo_reg(page, reg, REG_MII_ADDR_READ);
- return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0);
+ return mdio_read(robo.phy_addr, REG_MII_DATA0);
}
static __u32 robo_read32(__u8 page, __u8 reg)
{
robo_reg(page, reg, REG_MII_ADDR_READ);
- return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0) +
- (mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + 1) << 16);
+ return mdio_read(robo.phy_addr, REG_MII_DATA0) +
+ (mdio_read(robo.phy_addr, REG_MII_DATA0 + 1) << 16);
}
static void robo_write16(__u8 page, __u8 reg, __u16 val16)
{
/* write data */
- mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val16);
+ mdio_write(robo.phy_addr, REG_MII_DATA0, val16);
robo_reg(page, reg, REG_MII_ADDR_WRITE);
}
static void robo_write32(__u8 page, __u8 reg, __u32 val32)
{
/* write data */
- mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 65535);
- mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0 + 1, val32 >> 16);
+ mdio_write(robo.phy_addr, REG_MII_DATA0, val32 & 65535);
+ mdio_write(robo.phy_addr, REG_MII_DATA0 + 1, val32 >> 16);
robo_reg(page, reg, REG_MII_ADDR_WRITE);
}
return (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350) == val16);
}
+static int robo_switch_enable(void)
+{
+ unsigned int i, last_port;
+ u16 val;
+
+ val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
+ if (!(val & (1 << 1))) {
+ /* Unmanaged mode */
+ val &= ~(1 << 0);
+ /* With forwarding */
+ val |= (1 << 1);
+ robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
+ val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
+ if (!(val & (1 << 1))) {
+ printk("Failed to enable switch\n");
+ return -EBUSY;
+ }
+
+ last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
+ ROBO_PORT6_CTRL : ROBO_PORT3_CTRL;
+ for (i = ROBO_PORT0_CTRL; i < last_port + 1; i++)
+ robo_write16(ROBO_CTRL_PAGE, i, 0);
+ }
+
+ /* WAN port LED */
+ robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
+
+ return 0;
+}
+static void robo_switch_reset(void)
+{
+ if ((robo.devid == ROBO_DEVICE_ID_5395) ||
+ (robo.devid == ROBO_DEVICE_ID_5397) ||
+ (robo.devid == ROBO_DEVICE_ID_5398)) {
+ /* Trigger a software reset. */
+ robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
+ robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
+ }
+}
static int robo_probe(char *devname)
{
__u32 phyid;
+ unsigned int i;
+ int err;
- printk("Probing device %s: ", devname);
- strcpy(ifr.ifr_name, devname);
+ printk(KERN_INFO PFX "Probing device %s: ", devname);
+ strcpy(robo.ifr.ifr_name, devname);
- if ((dev = dev_get_by_name(devname)) == NULL) {
+ if ((robo.dev = dev_get_by_name(devname)) == NULL) {
printk("No such device\n");
return 1;
}
+ robo.device = devname;
+ for (i = 0; i < 5; i++)
+ robo.port[i] = i;
+ robo.port[5] = 8;
+
/* try access using MII ioctls - get phy address */
if (do_ioctl(SIOCGMIIPHY, NULL) < 0) {
- use_et = 1;
+ robo.use_et = 1;
+ robo.phy_addr = ROBO_PHY_ADDR;
} else {
/* got phy address check for robo address */
- struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &ifr.ifr_data;
- if (mii->phy_id != ROBO_PHY_ADDR) {
+ struct mii_ioctl_data *mii = (struct mii_ioctl_data *) &robo.ifr.ifr_data;
+ if ((mii->phy_id != ROBO_PHY_ADDR) &&
+ (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
printk("Invalid phy address (%d)\n", mii->phy_id);
return 1;
}
+ robo.use_et = 0;
+ /* The robo has a fixed PHY address that is different from the
+ * Tigon3 PHY address. */
+ robo.phy_addr = ROBO_PHY_ADDR;
}
- phyid = mdio_read(ROBO_PHY_ADDR, 0x2) |
- (mdio_read(ROBO_PHY_ADDR, 0x3) << 16);
+ phyid = mdio_read(robo.phy_addr, 0x2) |
+ (mdio_read(robo.phy_addr, 0x3) << 16);
if (phyid == 0xffffffff || phyid == 0x55210022) {
printk("No Robo switch in managed mode found\n");
return 1;
}
-
- is_5350 = robo_vlan5350();
-
+
+ /* Get the device ID */
+ for (i = 0; i < 10; i++) {
+ robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
+ if (robo.devid)
+ break;
+ udelay(10);
+ }
+ if (!robo.devid)
+ robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
+ robo.is_5350 = robo_vlan5350();
+
+ robo_switch_reset();
+ err = robo_switch_enable();
+ if (err)
+ return err;
+
printk("found!\n");
return 0;
}
val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
- if (is_5350) {
+ if (robo.is_5350) {
u32 val32;
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
/* actual read */
/* write config now */
val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
- if (is_5350) {
+ if (robo.is_5350) {
robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350,
(1 << 20) /* valid */ | (c->untag << 6) | c->port);
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5350, val16);
set_switch(0);
/* reset vlans */
- for (j = 0; j <= (is_5350 ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++) {
+ for (j = 0; j <= ((robo.is_5350) ? VLAN_ID_MAX5350 : VLAN_ID_MAX); j++) {
/* write config now */
val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
- if (is_5350)
+ if (robo.is_5350)
robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5350, 0);
else
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
- robo_write16(ROBO_VLAN_PAGE, (is_5350 ? ROBO_VLAN_TABLE_ACCESS_5350 : ROBO_VLAN_TABLE_ACCESS), val16);
+ robo_write16(ROBO_VLAN_PAGE, robo.is_5350 ? ROBO_VLAN_TABLE_ACCESS_5350 :
+ ROBO_VLAN_TABLE_ACCESS,
+ val16);
}
/* reset ports to a known good state */
for (j = 0; j < d->ports; j++) {
- robo_write16(ROBO_CTRL_PAGE, port[j], 0x0000);
+ robo_write16(ROBO_CTRL_PAGE, robo.port[j], 0x0000);
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), 0);
}
static int __init robo_init(void)
{
int notfound = 1;
+ char *device;
device = strdup("ethX");
for (device[3] = '0'; (device[3] <= '3') && notfound; device[3]++) {
kfree(device);
return -ENODEV;
} else {
- switch_config cfg[] = {
- {"enable", handle_enable_read, handle_enable_write},
- {"enable_vlan", handle_enable_vlan_read, handle_enable_vlan_write},
- {"reset", NULL, handle_reset},
- {NULL, NULL, NULL}
+ static const switch_config cfg[] = {
+ {
+ .name = "enable",
+ .read = handle_enable_read,
+ .write = handle_enable_write
+ }, {
+ .name = "enable_vlan",
+ .read = handle_enable_vlan_read,
+ .write = handle_enable_vlan_write
+ }, {
+ .name = "reset",
+ .read = NULL,
+ .write = handle_reset
+ }, { NULL, },
};
- switch_config vlan[] = {
- {"ports", handle_vlan_port_read, handle_vlan_port_write},
- {NULL, NULL, NULL}
+ static const switch_config vlan[] = {
+ {
+ .name = "ports",
+ .read = handle_vlan_port_read,
+ .write = handle_vlan_port_write
+ }, { NULL, },
};
switch_driver driver = {
- name: DRIVER_NAME,
- version: DRIVER_VERSION,
- interface: device,
- cpuport: 5,
- ports: 6,
- vlans: 16,
- driver_handlers: cfg,
- port_handlers: NULL,
- vlan_handlers: vlan,
+ .name = DRIVER_NAME,
+ .version = DRIVER_VERSION,
+ .interface = device,
+ .cpuport = 5,
+ .ports = 6,
+ .vlans = 16,
+ .driver_handlers = cfg,
+ .port_handlers = NULL,
+ .vlan_handlers = vlan,
};
return switch_register_driver(&driver);
static void __exit robo_exit(void)
{
switch_unregister_driver(DRIVER_NAME);
- kfree(device);
+ kfree(robo.device);
}
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