892 lines
22 KiB
C
892 lines
22 KiB
C
/*
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* Broadcom BCM5325E/536x switch configuration module
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*
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* Copyright (C) 2005 Felix Fietkau <nbd@nbd.name>
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* Copyright (C) 2008 Michael Buesch <mb@bu3sch.de>
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* Copyright (C) 2013 Hauke Mehrtens <hauke@hauke-m.de>
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* Based on 'robocfg' by Oleg I. Vdovikin
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/if.h>
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#include <linux/if_arp.h>
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#include <linux/sockios.h>
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#include <linux/ethtool.h>
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#include <linux/mii.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <asm/uaccess.h>
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#include "switch-core.h"
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#include "etc53xx.h"
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#ifdef CONFIG_BCM47XX
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#include <bcm47xx_nvram.h>
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#endif
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#define DRIVER_NAME "bcm53xx"
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#define DRIVER_VERSION "0.03"
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#define PFX "roboswitch: "
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#define ROBO_PHY_ADDR 0x1E /* robo switch phy address */
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#define ROBO_PHY_ADDR_TG3 0x01 /* Tigon3 PHY address */
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#define ROBO_PHY_ADDR_BCM63XX 0x00 /* BCM63XX PHY address */
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/* MII registers */
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#define REG_MII_PAGE 0x10 /* MII Page register */
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#define REG_MII_ADDR 0x11 /* MII Address register */
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#define REG_MII_DATA0 0x18 /* MII Data register 0 */
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#define REG_MII_PAGE_ENABLE 1
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#define REG_MII_ADDR_WRITE 1
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#define REG_MII_ADDR_READ 2
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/* Robo device ID register (in ROBO_MGMT_PAGE) */
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#define ROBO_DEVICE_ID 0x30
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#define ROBO_DEVICE_ID_5325 0x25 /* Faked */
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#define ROBO_DEVICE_ID_5395 0x95
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#define ROBO_DEVICE_ID_5397 0x97
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#define ROBO_DEVICE_ID_5398 0x98
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#define ROBO_DEVICE_ID_53115 0x3115
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#define ROBO_DEVICE_ID_53125 0x3125
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/* Private et.o ioctls */
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#define SIOCGETCPHYRD (SIOCDEVPRIVATE + 9)
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#define SIOCSETCPHYWR (SIOCDEVPRIVATE + 10)
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/* Data structure for a Roboswitch device. */
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struct robo_switch {
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char *device; /* The device name string (ethX) */
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u16 devid; /* ROBO_DEVICE_ID_53xx */
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bool is_5365;
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bool gmii; /* gigabit mii */
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u8 corerev;
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int gpio_robo_reset;
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int gpio_lanports_enable;
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struct ifreq ifr;
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struct net_device *dev;
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unsigned char port[9];
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};
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/* Currently we can only have one device in the system. */
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static struct robo_switch robo;
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static int do_ioctl(int cmd)
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{
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mm_segment_t old_fs = get_fs();
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int ret;
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set_fs(KERNEL_DS);
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ret = robo.dev->netdev_ops->ndo_do_ioctl(robo.dev, &robo.ifr, cmd);
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set_fs(old_fs);
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return ret;
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}
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static u16 mdio_read(__u16 phy_id, __u8 reg)
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{
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struct mii_ioctl_data *mii = if_mii(&robo.ifr);
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int err;
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mii->phy_id = phy_id;
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mii->reg_num = reg;
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err = do_ioctl(SIOCGMIIREG);
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if (err < 0) {
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printk(KERN_ERR PFX "failed to read mdio reg %i with err %i.\n", reg, err);
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return 0xffff;
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}
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return mii->val_out;
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}
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static void mdio_write(__u16 phy_id, __u8 reg, __u16 val)
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{
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struct mii_ioctl_data *mii = if_mii(&robo.ifr);
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int err;
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mii->phy_id = phy_id;
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mii->reg_num = reg;
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mii->val_in = val;
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err = do_ioctl(SIOCSMIIREG);
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if (err < 0) {
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printk(KERN_ERR PFX "failed to write mdio reg: %i with err %i.\n", reg, err);
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return;
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}
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}
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static int robo_reg(__u8 page, __u8 reg, __u8 op)
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{
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int i = 3;
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/* set page number */
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mdio_write(ROBO_PHY_ADDR, REG_MII_PAGE,
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(page << 8) | REG_MII_PAGE_ENABLE);
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/* set register address */
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mdio_write(ROBO_PHY_ADDR, REG_MII_ADDR,
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(reg << 8) | op);
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/* check if operation completed */
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while (i--) {
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if ((mdio_read(ROBO_PHY_ADDR, REG_MII_ADDR) & 3) == 0)
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return 0;
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}
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printk(KERN_ERR PFX "timeout in robo_reg on page %i and reg %i with op %i.\n", page, reg, op);
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return 1;
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}
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/*
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static void robo_read(__u8 page, __u8 reg, __u16 *val, int count)
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{
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int i;
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robo_reg(page, reg, REG_MII_ADDR_READ);
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for (i = 0; i < count; i++)
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val[i] = mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + i);
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}
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*/
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static __u16 robo_read16(__u8 page, __u8 reg)
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{
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robo_reg(page, reg, REG_MII_ADDR_READ);
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return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0);
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}
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static __u32 robo_read32(__u8 page, __u8 reg)
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{
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robo_reg(page, reg, REG_MII_ADDR_READ);
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return mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0) |
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(mdio_read(ROBO_PHY_ADDR, REG_MII_DATA0 + 1) << 16);
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}
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static void robo_write16(__u8 page, __u8 reg, __u16 val16)
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{
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/* write data */
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mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val16);
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robo_reg(page, reg, REG_MII_ADDR_WRITE);
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}
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static void robo_write32(__u8 page, __u8 reg, __u32 val32)
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{
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/* write data */
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mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0, val32 & 0xFFFF);
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mdio_write(ROBO_PHY_ADDR, REG_MII_DATA0 + 1, val32 >> 16);
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robo_reg(page, reg, REG_MII_ADDR_WRITE);
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}
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/* checks that attached switch is 5365 */
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static bool robo_bcm5365(void)
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{
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/* set vlan access id to 15 and read it back */
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__u16 val16 = 15;
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robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
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/* 5365 will refuse this as it does not have this reg */
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return robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS) != val16;
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}
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static bool robo_gmii(void)
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{
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if (mdio_read(0, ROBO_MII_STAT) & 0x0100)
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return ((mdio_read(0, 0x0f) & 0xf000) != 0);
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return false;
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}
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static int robo_switch_enable(void)
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{
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unsigned int i, last_port;
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u16 val;
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#ifdef CONFIG_BCM47XX
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char buf[20];
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#endif
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val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
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if (!(val & (1 << 1))) {
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/* Unmanaged mode */
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val &= ~(1 << 0);
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/* With forwarding */
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val |= (1 << 1);
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robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, val);
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val = robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE);
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if (!(val & (1 << 1))) {
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printk(KERN_ERR PFX "Failed to enable switch\n");
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return -EBUSY;
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}
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/* No spanning tree for unmanaged mode */
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last_port = (robo.devid == ROBO_DEVICE_ID_5398) ?
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ROBO_PORT7_CTRL : ROBO_PORT4_CTRL;
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for (i = ROBO_PORT0_CTRL; i <= last_port; i++)
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robo_write16(ROBO_CTRL_PAGE, i, 0);
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/* No spanning tree on IMP port too */
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robo_write16(ROBO_CTRL_PAGE, ROBO_IM_PORT_CTRL, 0);
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}
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if (robo.devid == ROBO_DEVICE_ID_53125) {
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/* Make IM port status link by default */
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val = robo_read16(ROBO_CTRL_PAGE, ROBO_PORT_OVERRIDE_CTRL) | 0xb1;
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robo_write16(ROBO_CTRL_PAGE, ROBO_PORT_OVERRIDE_CTRL, val);
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// TODO: init EEE feature
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}
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#ifdef CONFIG_BCM47XX
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/* WAN port LED, except for Netgear WGT634U */
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if (bcm47xx_nvram_getenv("nvram_type", buf, sizeof(buf)) >= 0) {
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if (strcmp(buf, "cfe") != 0)
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robo_write16(ROBO_CTRL_PAGE, 0x16, 0x1F);
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}
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#endif
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return 0;
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}
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static void robo_switch_reset(void)
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{
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if ((robo.devid == ROBO_DEVICE_ID_5395) ||
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(robo.devid == ROBO_DEVICE_ID_5397) ||
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(robo.devid == ROBO_DEVICE_ID_5398)) {
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/* Trigger a software reset. */
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robo_write16(ROBO_CTRL_PAGE, 0x79, 0x83);
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mdelay(500);
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robo_write16(ROBO_CTRL_PAGE, 0x79, 0);
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}
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}
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#ifdef CONFIG_BCM47XX
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static int get_gpio_pin(const char *name)
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{
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int i, err;
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char nvram_var[10];
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char buf[30];
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for (i = 0; i < 16; i++) {
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err = snprintf(nvram_var, sizeof(nvram_var), "gpio%i", i);
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if (err <= 0)
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continue;
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err = bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf));
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if (err <= 0)
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continue;
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if (!strcmp(name, buf))
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return i;
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}
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return -1;
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}
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#endif
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static int robo_probe(char *devname)
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{
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__u32 phyid;
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unsigned int i;
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int err = -1;
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struct mii_ioctl_data *mii;
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printk(KERN_INFO PFX "Probing device '%s'\n", devname);
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strcpy(robo.ifr.ifr_name, devname);
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if ((robo.dev = dev_get_by_name(&init_net, devname)) == NULL) {
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printk(KERN_ERR PFX "No such device\n");
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err = -ENODEV;
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goto err_done;
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}
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if (!robo.dev->netdev_ops || !robo.dev->netdev_ops->ndo_do_ioctl) {
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printk(KERN_ERR PFX "ndo_do_ioctl not implemented in ethernet driver\n");
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err = -ENXIO;
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goto err_put;
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}
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robo.device = devname;
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/* try access using MII ioctls - get phy address */
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err = do_ioctl(SIOCGMIIPHY);
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if (err < 0) {
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printk(KERN_ERR PFX "error (%i) while accessing MII phy registers with ioctls\n", err);
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goto err_put;
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}
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/* got phy address check for robo address */
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mii = if_mii(&robo.ifr);
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if ((mii->phy_id != ROBO_PHY_ADDR) &&
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(mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
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(mii->phy_id != ROBO_PHY_ADDR_TG3)) {
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printk(KERN_ERR PFX "Invalid phy address (%d)\n", mii->phy_id);
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err = -ENODEV;
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goto err_put;
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}
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#ifdef CONFIG_BCM47XX
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robo.gpio_lanports_enable = get_gpio_pin("lanports_enable");
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if (robo.gpio_lanports_enable >= 0) {
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err = gpio_request(robo.gpio_lanports_enable, "lanports_enable");
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if (err) {
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printk(KERN_ERR PFX "error (%i) requesting lanports_enable gpio (%i)\n",
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err, robo.gpio_lanports_enable);
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goto err_put;
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}
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gpio_direction_output(robo.gpio_lanports_enable, 1);
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mdelay(5);
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}
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robo.gpio_robo_reset = get_gpio_pin("robo_reset");
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if (robo.gpio_robo_reset >= 0) {
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err = gpio_request(robo.gpio_robo_reset, "robo_reset");
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if (err) {
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printk(KERN_ERR PFX "error (%i) requesting robo_reset gpio (%i)\n",
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err, robo.gpio_robo_reset);
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goto err_gpio_robo;
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}
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gpio_set_value(robo.gpio_robo_reset, 0);
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gpio_direction_output(robo.gpio_robo_reset, 1);
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gpio_set_value(robo.gpio_robo_reset, 0);
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mdelay(50);
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gpio_set_value(robo.gpio_robo_reset, 1);
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mdelay(20);
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} else {
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// TODO: reset the internal robo switch
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}
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#endif
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phyid = mdio_read(ROBO_PHY_ADDR, 0x2) |
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(mdio_read(ROBO_PHY_ADDR, 0x3) << 16);
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if (phyid == 0xffffffff || phyid == 0x55210022) {
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printk(KERN_ERR PFX "No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid);
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err = -ENODEV;
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goto err_gpio_lanports;
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}
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/* Get the device ID */
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for (i = 0; i < 10; i++) {
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robo.devid = robo_read16(ROBO_MGMT_PAGE, ROBO_DEVICE_ID);
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if (robo.devid)
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break;
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udelay(10);
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}
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if (!robo.devid)
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robo.devid = ROBO_DEVICE_ID_5325; /* Fake it */
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if (robo.devid == ROBO_DEVICE_ID_5325)
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robo.is_5365 = robo_bcm5365();
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else
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robo.is_5365 = false;
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robo.gmii = robo_gmii();
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if (robo.devid == ROBO_DEVICE_ID_5325) {
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for (i = 0; i < 5; i++)
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robo.port[i] = i;
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} else {
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for (i = 0; i < 8; i++)
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robo.port[i] = i;
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}
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robo.port[i] = ROBO_IM_PORT_CTRL;
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robo_switch_reset();
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err = robo_switch_enable();
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if (err)
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goto err_gpio_lanports;
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printk(KERN_INFO PFX "found a 5%s%x!%s at %s\n", robo.devid & 0xff00 ? "" : "3", robo.devid,
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robo.is_5365 ? " It's a BCM5365." : "", devname);
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return 0;
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err_gpio_lanports:
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if (robo.gpio_lanports_enable >= 0)
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gpio_free(robo.gpio_lanports_enable);
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err_gpio_robo:
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if (robo.gpio_robo_reset >= 0)
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gpio_free(robo.gpio_robo_reset);
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err_put:
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dev_put(robo.dev);
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robo.dev = NULL;
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err_done:
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return err;
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}
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static int handle_vlan_port_read_old(switch_driver *d, char *buf, int nr)
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{
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__u16 val16;
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int len = 0;
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int j;
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val16 = (nr) /* vlan */ | (0 << 12) /* read */ | (1 << 13) /* enable */;
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if (robo.is_5365) {
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robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5365, val16);
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/* actual read */
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val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
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if ((val16 & (1 << 14)) /* valid */) {
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for (j = 0; j < d->ports; j++) {
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if (val16 & (1 << j)) {
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len += sprintf(buf + len, "%d", j);
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if (val16 & (1 << (j + 7))) {
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if (j == d->cpuport)
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buf[len++] = 'u';
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} else {
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buf[len++] = 't';
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if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
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buf[len++] = '*';
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}
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buf[len++] = '\t';
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}
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}
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len += sprintf(buf + len, "\n");
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}
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} else {
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u32 val32;
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robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
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/* actual read */
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val32 = robo_read32(ROBO_VLAN_PAGE, ROBO_VLAN_READ);
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if ((val32 & (1 << 20)) /* valid */) {
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for (j = 0; j < d->ports; j++) {
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if (val32 & (1 << j)) {
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len += sprintf(buf + len, "%d", j);
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if (val32 & (1 << (j + d->ports))) {
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if (j == d->cpuport)
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buf[len++] = 'u';
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} else {
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buf[len++] = 't';
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if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
|
|
buf[len++] = '*';
|
|
}
|
|
buf[len++] = '\t';
|
|
}
|
|
}
|
|
len += sprintf(buf + len, "\n");
|
|
}
|
|
}
|
|
|
|
buf[len] = '\0';
|
|
|
|
return len;
|
|
}
|
|
|
|
static int handle_vlan_port_read_new(switch_driver *d, char *buf, int nr)
|
|
{
|
|
__u8 vtbl_entry, vtbl_index, vtbl_access;
|
|
__u32 val32;
|
|
int len = 0;
|
|
int j;
|
|
|
|
if ((robo.devid == ROBO_DEVICE_ID_5395) ||
|
|
(robo.devid == ROBO_DEVICE_ID_53115) ||
|
|
(robo.devid == ROBO_DEVICE_ID_53125)) {
|
|
vtbl_access = ROBO_VTBL_ACCESS_5395;
|
|
vtbl_index = ROBO_VTBL_INDX_5395;
|
|
vtbl_entry = ROBO_VTBL_ENTRY_5395;
|
|
} else {
|
|
vtbl_access = ROBO_VTBL_ACCESS;
|
|
vtbl_index = ROBO_VTBL_INDX;
|
|
vtbl_entry = ROBO_VTBL_ENTRY;
|
|
}
|
|
|
|
robo_write16(ROBO_ARLIO_PAGE, vtbl_index, nr);
|
|
robo_write16(ROBO_ARLIO_PAGE, vtbl_access, (1 << 7) | (1 << 0));
|
|
val32 = robo_read32(ROBO_ARLIO_PAGE, vtbl_entry);
|
|
for (j = 0; j < d->ports; j++) {
|
|
if (val32 & (1 << j)) {
|
|
len += sprintf(buf + len, "%d", j);
|
|
if (val32 & (1 << (j + d->ports))) {
|
|
if (j == d->cpuport)
|
|
buf[len++] = 'u';
|
|
} else {
|
|
buf[len++] = 't';
|
|
if (robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1)) == nr)
|
|
buf[len++] = '*';
|
|
}
|
|
buf[len++] = '\t';
|
|
}
|
|
}
|
|
len += sprintf(buf + len, "\n");
|
|
buf[len] = '\0';
|
|
return len;
|
|
}
|
|
|
|
static int handle_vlan_port_read(void *driver, char *buf, int nr)
|
|
{
|
|
switch_driver *d = (switch_driver *) driver;
|
|
|
|
if (robo.devid != ROBO_DEVICE_ID_5325)
|
|
return handle_vlan_port_read_new(d, buf, nr);
|
|
else
|
|
return handle_vlan_port_read_old(d, buf, nr);
|
|
}
|
|
|
|
static void handle_vlan_port_write_old(switch_driver *d, switch_vlan_config *c, int nr)
|
|
{
|
|
__u16 val16;
|
|
__u32 val32;
|
|
__u32 untag = ((c->untag & ~(1 << d->cpuport)) << d->ports);
|
|
|
|
/* write config now */
|
|
val16 = (nr) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
|
|
if (robo.is_5365) {
|
|
robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5365,
|
|
(1 << 14) /* valid */ | (untag << 1 ) | c->port);
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS_5365, val16);
|
|
} else {
|
|
if (robo.corerev < 3)
|
|
val32 = (1 << 20) | ((nr >> 4) << 12) | untag | c->port;
|
|
else
|
|
val32 = (1 << 24) | (nr << 12) | untag | c->port;
|
|
robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, val32);
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_TABLE_ACCESS, val16);
|
|
}
|
|
}
|
|
|
|
static void handle_vlan_port_write_new(switch_driver *d, switch_vlan_config *c, int nr)
|
|
{
|
|
__u8 vtbl_entry, vtbl_index, vtbl_access;
|
|
__u32 untag = ((c->untag & ~(1 << d->cpuport)) << d->ports);
|
|
|
|
/* write config now */
|
|
if ((robo.devid == ROBO_DEVICE_ID_5395) ||
|
|
(robo.devid == ROBO_DEVICE_ID_53115) ||
|
|
(robo.devid == ROBO_DEVICE_ID_53125)) {
|
|
vtbl_access = ROBO_VTBL_ACCESS_5395;
|
|
vtbl_index = ROBO_VTBL_INDX_5395;
|
|
vtbl_entry = ROBO_VTBL_ENTRY_5395;
|
|
} else {
|
|
vtbl_access = ROBO_VTBL_ACCESS;
|
|
vtbl_index = ROBO_VTBL_INDX;
|
|
vtbl_entry = ROBO_VTBL_ENTRY;
|
|
}
|
|
|
|
robo_write32(ROBO_ARLIO_PAGE, vtbl_entry, untag | c->port);
|
|
robo_write16(ROBO_ARLIO_PAGE, vtbl_index, nr);
|
|
robo_write16(ROBO_ARLIO_PAGE, vtbl_access, 1 << 7);
|
|
}
|
|
|
|
static int handle_vlan_port_write(void *driver, char *buf, int nr)
|
|
{
|
|
switch_driver *d = (switch_driver *)driver;
|
|
switch_vlan_config *c = switch_parse_vlan(d, buf);
|
|
int j;
|
|
|
|
if (c == NULL)
|
|
return -EINVAL;
|
|
|
|
for (j = 0; j < d->ports; j++) {
|
|
if ((c->untag | c->pvid) & (1 << j)) {
|
|
/* change default vlan tag */
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), nr);
|
|
}
|
|
}
|
|
|
|
if (robo.devid != ROBO_DEVICE_ID_5325)
|
|
handle_vlan_port_write_new(d, c, nr);
|
|
else
|
|
handle_vlan_port_write_old(d, c, nr);
|
|
|
|
kfree(c);
|
|
return 0;
|
|
}
|
|
|
|
#define set_switch(state) \
|
|
robo_write16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE, (robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & ~2) | (state ? 2 : 0));
|
|
|
|
static int handle_enable_read(void *driver, char *buf, int nr)
|
|
{
|
|
return sprintf(buf, "%d\n", (((robo_read16(ROBO_CTRL_PAGE, ROBO_SWITCH_MODE) & 2) == 2) ? 1 : 0));
|
|
}
|
|
|
|
static int handle_enable_write(void *driver, char *buf, int nr)
|
|
{
|
|
set_switch(buf[0] == '1');
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int handle_port_enable_read(void *driver, char *buf, int nr)
|
|
{
|
|
return sprintf(buf, "%d\n", ((robo_read16(ROBO_CTRL_PAGE, robo.port[nr]) & 3) == 3 ? 0 : 1));
|
|
}
|
|
|
|
static int handle_port_enable_write(void *driver, char *buf, int nr)
|
|
{
|
|
u16 val16;
|
|
|
|
if (buf[0] == '0')
|
|
val16 = 3; /* disabled */
|
|
else if (buf[0] == '1')
|
|
val16 = 0; /* enabled */
|
|
else
|
|
return -EINVAL;
|
|
|
|
robo_write16(ROBO_CTRL_PAGE, robo.port[nr],
|
|
(robo_read16(ROBO_CTRL_PAGE, robo.port[nr]) & ~3) | val16);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int handle_port_media_read(void *driver, char *buf, int nr)
|
|
{
|
|
u16 bmcr = mdio_read(robo.port[nr], MII_BMCR);
|
|
int media, len;
|
|
|
|
if (bmcr & BMCR_ANENABLE)
|
|
media = SWITCH_MEDIA_AUTO;
|
|
else {
|
|
if (bmcr & BMCR_SPEED1000)
|
|
media = SWITCH_MEDIA_1000;
|
|
else if (bmcr & BMCR_SPEED100)
|
|
media = SWITCH_MEDIA_100;
|
|
else
|
|
media = 0;
|
|
|
|
if (bmcr & BMCR_FULLDPLX)
|
|
media |= SWITCH_MEDIA_FD;
|
|
}
|
|
|
|
len = switch_print_media(buf, media);
|
|
return len + sprintf(buf + len, "\n");
|
|
}
|
|
|
|
static int handle_port_media_write(void *driver, char *buf, int nr)
|
|
{
|
|
int media = switch_parse_media(buf);
|
|
u16 bmcr, bmcr_mask;
|
|
|
|
if (media & SWITCH_MEDIA_AUTO)
|
|
bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
|
|
else {
|
|
if (media & SWITCH_MEDIA_1000) {
|
|
if (!robo.gmii)
|
|
return -EINVAL;
|
|
bmcr = BMCR_SPEED1000;
|
|
}
|
|
else if (media & SWITCH_MEDIA_100)
|
|
bmcr = BMCR_SPEED100;
|
|
else
|
|
bmcr = 0;
|
|
|
|
if (media & SWITCH_MEDIA_FD)
|
|
bmcr |= BMCR_FULLDPLX;
|
|
}
|
|
|
|
bmcr_mask = ~(BMCR_SPEED1000 | BMCR_SPEED100 | BMCR_FULLDPLX | BMCR_ANENABLE | BMCR_ANRESTART);
|
|
mdio_write(robo.port[nr], MII_BMCR,
|
|
(mdio_read(robo.port[nr], MII_BMCR) & bmcr_mask) | bmcr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int handle_enable_vlan_read(void *driver, char *buf, int nr)
|
|
{
|
|
return sprintf(buf, "%d\n", (((robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0) & (1 << 7)) == (1 << 7)) ? 1 : 0));
|
|
}
|
|
|
|
static int handle_enable_vlan_write(void *driver, char *buf, int nr)
|
|
{
|
|
__u16 val16;
|
|
int disable = ((buf[0] != '1') ? 1 : 0);
|
|
|
|
val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0);
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL0, disable ? 0 :
|
|
val16 | (1 << 7) /* 802.1Q VLAN */ | (3 << 5) /* mac check and hash */);
|
|
|
|
val16 = robo_read16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1);
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL1, disable ? 0 :
|
|
val16 | (robo.devid == ROBO_DEVICE_ID_5325 ? (1 << 1) :
|
|
0) | (1 << 2) | (1 << 3)); /* RSV multicast */
|
|
|
|
if (robo.devid != ROBO_DEVICE_ID_5325)
|
|
return 0;
|
|
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL4, disable ? 0 :
|
|
(1 << 6) /* drop invalid VID frames */);
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_CTRL5, disable ? 0 :
|
|
(1 << 3) /* drop miss V table frames */);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void handle_reset_old(switch_driver *d, char *buf, int nr)
|
|
{
|
|
int j;
|
|
__u16 val16;
|
|
|
|
/* reset vlans */
|
|
for (j = 0; j <= ((robo.is_5365) ? VLAN_ID_MAX_5365 : VLAN_ID_MAX); j++) {
|
|
/* write config now */
|
|
val16 = (j) /* vlan */ | (1 << 12) /* write */ | (1 << 13) /* enable */;
|
|
if (robo.is_5365)
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE_5365, 0);
|
|
else
|
|
robo_write32(ROBO_VLAN_PAGE, ROBO_VLAN_WRITE, 0);
|
|
robo_write16(ROBO_VLAN_PAGE, robo.is_5365 ? ROBO_VLAN_TABLE_ACCESS_5365 :
|
|
ROBO_VLAN_TABLE_ACCESS,
|
|
val16);
|
|
}
|
|
}
|
|
|
|
static void handle_reset_new(switch_driver *d, char *buf, int nr)
|
|
{
|
|
int j;
|
|
__u8 vtbl_entry, vtbl_index, vtbl_access;
|
|
|
|
if ((robo.devid == ROBO_DEVICE_ID_5395) ||
|
|
(robo.devid == ROBO_DEVICE_ID_53115) ||
|
|
(robo.devid == ROBO_DEVICE_ID_53125)) {
|
|
vtbl_access = ROBO_VTBL_ACCESS_5395;
|
|
vtbl_index = ROBO_VTBL_INDX_5395;
|
|
vtbl_entry = ROBO_VTBL_ENTRY_5395;
|
|
} else {
|
|
vtbl_access = ROBO_VTBL_ACCESS;
|
|
vtbl_index = ROBO_VTBL_INDX;
|
|
vtbl_entry = ROBO_VTBL_ENTRY;
|
|
}
|
|
|
|
for (j = 0; j <= VLAN_ID_MAX; j++) {
|
|
/* write config now */
|
|
robo_write32(ROBO_ARLIO_PAGE, vtbl_entry, 0);
|
|
robo_write16(ROBO_ARLIO_PAGE, vtbl_index, j);
|
|
robo_write16(ROBO_ARLIO_PAGE, vtbl_access, 1 << 7);
|
|
}
|
|
}
|
|
|
|
static int handle_reset(void *driver, char *buf, int nr)
|
|
{
|
|
int j;
|
|
switch_driver *d = (switch_driver *) driver;
|
|
|
|
/* disable switching */
|
|
set_switch(0);
|
|
|
|
if (robo.devid != ROBO_DEVICE_ID_5325)
|
|
handle_reset_new(d, buf, nr);
|
|
else
|
|
handle_reset_old(d, buf, nr);
|
|
|
|
/* reset ports to a known good state */
|
|
for (j = 0; j < d->ports; j++) {
|
|
robo_write16(ROBO_CTRL_PAGE, robo.port[j], 0x0000);
|
|
robo_write16(ROBO_VLAN_PAGE, ROBO_VLAN_PORT0_DEF_TAG + (j << 1), 0);
|
|
}
|
|
|
|
/* enable switching */
|
|
set_switch(1);
|
|
|
|
/* enable vlans */
|
|
handle_enable_vlan_write(driver, "1", 0);
|
|
|
|
return 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]++) {
|
|
if (! switch_device_registered (device))
|
|
notfound = robo_probe(device);
|
|
}
|
|
device[3]--;
|
|
|
|
if (notfound) {
|
|
kfree(device);
|
|
return -ENODEV;
|
|
} else {
|
|
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, },
|
|
};
|
|
static const switch_config port[] = {
|
|
{
|
|
.name = "enable",
|
|
.read = handle_port_enable_read,
|
|
.write = handle_port_enable_write
|
|
}, {
|
|
.name = "media",
|
|
.read = handle_port_media_read,
|
|
.write = handle_port_media_write
|
|
}, { 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 = port,
|
|
.vlan_handlers = vlan,
|
|
};
|
|
if (robo.devid != ROBO_DEVICE_ID_5325) {
|
|
driver.ports = 9;
|
|
driver.cpuport = 8;
|
|
}
|
|
if (robo.is_5365)
|
|
snprintf(driver.dev_name, SWITCH_NAME_BUFSZ, "BCM5365");
|
|
else
|
|
snprintf(driver.dev_name, SWITCH_NAME_BUFSZ, "BCM5%s%x", robo.devid & 0xff00 ? "" : "3", robo.devid);
|
|
|
|
return switch_register_driver(&driver);
|
|
}
|
|
}
|
|
|
|
static void __exit robo_exit(void)
|
|
{
|
|
switch_unregister_driver(DRIVER_NAME);
|
|
if (robo.dev)
|
|
dev_put(robo.dev);
|
|
if (robo.gpio_robo_reset >= 0)
|
|
gpio_free(robo.gpio_robo_reset);
|
|
if (robo.gpio_lanports_enable >= 0)
|
|
gpio_free(robo.gpio_lanports_enable);
|
|
kfree(robo.device);
|
|
}
|
|
|
|
|
|
MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(robo_init);
|
|
module_exit(robo_exit);
|