mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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671f0e3971
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32604 3c298f89-4303-0410-b956-a3cf2f4a3e73
1537 lines
35 KiB
C
1537 lines
35 KiB
C
/*
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* ar8216.c: AR8216 switch driver
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*
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* Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
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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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#include <linux/if.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/if_ether.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/netlink.h>
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#include <linux/bitops.h>
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#include <net/genetlink.h>
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#include <linux/switch.h>
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#include <linux/delay.h>
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#include <linux/phy.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/lockdep.h>
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#include <linux/ar8216_platform.h>
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#include "ar8216.h"
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/* size of the vlan table */
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#define AR8X16_MAX_VLANS 128
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#define AR8X16_PROBE_RETRIES 10
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#define AR8X16_MAX_PORTS 8
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struct ar8216_priv;
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#define AR8XXX_CAP_GIGE BIT(0)
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enum {
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AR8XXX_VER_AR8216 = 0x01,
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AR8XXX_VER_AR8236 = 0x03,
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AR8XXX_VER_AR8316 = 0x10,
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AR8XXX_VER_AR8327 = 0x12,
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};
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struct ar8xxx_chip {
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unsigned long caps;
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int (*hw_init)(struct ar8216_priv *priv);
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void (*init_globals)(struct ar8216_priv *priv);
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void (*init_port)(struct ar8216_priv *priv, int port);
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void (*setup_port)(struct ar8216_priv *priv, int port, u32 egress,
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u32 ingress, u32 members, u32 pvid);
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u32 (*read_port_status)(struct ar8216_priv *priv, int port);
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int (*atu_flush)(struct ar8216_priv *priv);
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void (*vtu_flush)(struct ar8216_priv *priv);
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void (*vtu_load_vlan)(struct ar8216_priv *priv, u32 vid, u32 port_mask);
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};
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struct ar8216_priv {
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struct switch_dev dev;
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struct phy_device *phy;
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u32 (*read)(struct ar8216_priv *priv, int reg);
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void (*write)(struct ar8216_priv *priv, int reg, u32 val);
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const struct net_device_ops *ndo_old;
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struct net_device_ops ndo;
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struct mutex reg_mutex;
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u8 chip_ver;
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u8 chip_rev;
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const struct ar8xxx_chip *chip;
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bool initialized;
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bool port4_phy;
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char buf[80];
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bool init;
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bool mii_lo_first;
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/* all fields below are cleared on reset */
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bool vlan;
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u16 vlan_id[AR8X16_MAX_VLANS];
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u8 vlan_table[AR8X16_MAX_VLANS];
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u8 vlan_tagged;
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u16 pvid[AR8X16_MAX_PORTS];
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};
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#define to_ar8216(_dev) container_of(_dev, struct ar8216_priv, dev)
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static inline bool ar8xxx_has_gige(struct ar8216_priv *priv)
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{
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return priv->chip->caps & AR8XXX_CAP_GIGE;
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}
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static inline bool chip_is_ar8216(struct ar8216_priv *priv)
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{
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return priv->chip_ver == AR8XXX_VER_AR8216;
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}
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static inline bool chip_is_ar8236(struct ar8216_priv *priv)
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{
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return priv->chip_ver == AR8XXX_VER_AR8236;
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}
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static inline bool chip_is_ar8316(struct ar8216_priv *priv)
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{
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return priv->chip_ver == AR8XXX_VER_AR8316;
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}
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static inline bool chip_is_ar8327(struct ar8216_priv *priv)
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{
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return priv->chip_ver == AR8XXX_VER_AR8327;
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}
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static inline void
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split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page)
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{
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regaddr >>= 1;
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*r1 = regaddr & 0x1e;
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regaddr >>= 5;
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*r2 = regaddr & 0x7;
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regaddr >>= 3;
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*page = regaddr & 0x1ff;
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}
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static u32
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ar8216_mii_read(struct ar8216_priv *priv, int reg)
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{
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struct phy_device *phy = priv->phy;
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struct mii_bus *bus = phy->bus;
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u16 r1, r2, page;
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u16 lo, hi;
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split_addr((u32) reg, &r1, &r2, &page);
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, 0x18, 0, page);
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usleep_range(1000, 2000); /* wait for the page switch to propagate */
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lo = bus->read(bus, 0x10 | r2, r1);
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hi = bus->read(bus, 0x10 | r2, r1 + 1);
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mutex_unlock(&bus->mdio_lock);
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return (hi << 16) | lo;
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}
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static void
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ar8216_mii_write(struct ar8216_priv *priv, int reg, u32 val)
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{
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struct phy_device *phy = priv->phy;
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struct mii_bus *bus = phy->bus;
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u16 r1, r2, r3;
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u16 lo, hi;
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split_addr((u32) reg, &r1, &r2, &r3);
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lo = val & 0xffff;
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hi = (u16) (val >> 16);
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, 0x18, 0, r3);
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usleep_range(1000, 2000); /* wait for the page switch to propagate */
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if (priv->mii_lo_first) {
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bus->write(bus, 0x10 | r2, r1, lo);
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bus->write(bus, 0x10 | r2, r1 + 1, hi);
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} else {
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bus->write(bus, 0x10 | r2, r1 + 1, hi);
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bus->write(bus, 0x10 | r2, r1, lo);
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}
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mutex_unlock(&bus->mdio_lock);
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}
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static void
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ar8216_phy_dbg_write(struct ar8216_priv *priv, int phy_addr,
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u16 dbg_addr, u16 dbg_data)
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{
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struct mii_bus *bus = priv->phy->bus;
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, phy_addr, MII_ATH_DBG_ADDR, dbg_addr);
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bus->write(bus, phy_addr, MII_ATH_DBG_DATA, dbg_data);
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mutex_unlock(&bus->mdio_lock);
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}
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static void
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ar8216_phy_mmd_write(struct ar8216_priv *priv, int phy_addr, u16 addr, u16 data)
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{
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struct mii_bus *bus = priv->phy->bus;
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mutex_lock(&bus->mdio_lock);
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bus->write(bus, phy_addr, MII_ATH_MMD_ADDR, addr);
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bus->write(bus, phy_addr, MII_ATH_MMD_DATA, data);
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mutex_unlock(&bus->mdio_lock);
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}
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static u32
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ar8216_rmw(struct ar8216_priv *priv, int reg, u32 mask, u32 val)
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{
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u32 v;
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lockdep_assert_held(&priv->reg_mutex);
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v = priv->read(priv, reg);
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v &= ~mask;
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v |= val;
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priv->write(priv, reg, v);
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return v;
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}
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static void
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ar8216_read_port_link(struct ar8216_priv *priv, int port,
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struct switch_port_link *link)
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{
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u32 status;
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u32 speed;
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memset(link, '\0', sizeof(*link));
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status = priv->chip->read_port_status(priv, port);
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link->aneg = !!(status & AR8216_PORT_STATUS_LINK_AUTO);
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if (link->aneg) {
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link->link = !!(status & AR8216_PORT_STATUS_LINK_UP);
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if (!link->link)
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return;
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} else {
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link->link = true;
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}
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link->duplex = !!(status & AR8216_PORT_STATUS_DUPLEX);
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link->tx_flow = !!(status & AR8216_PORT_STATUS_TXFLOW);
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link->rx_flow = !!(status & AR8216_PORT_STATUS_RXFLOW);
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speed = (status & AR8216_PORT_STATUS_SPEED) >>
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AR8216_PORT_STATUS_SPEED_S;
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switch (speed) {
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case AR8216_PORT_SPEED_10M:
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link->speed = SWITCH_PORT_SPEED_10;
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break;
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case AR8216_PORT_SPEED_100M:
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link->speed = SWITCH_PORT_SPEED_100;
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break;
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case AR8216_PORT_SPEED_1000M:
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link->speed = SWITCH_PORT_SPEED_1000;
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break;
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default:
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link->speed = SWITCH_PORT_SPEED_UNKNOWN;
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break;
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}
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}
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static struct sk_buff *
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ar8216_mangle_tx(struct net_device *dev, struct sk_buff *skb)
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{
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struct ar8216_priv *priv = dev->phy_ptr;
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unsigned char *buf;
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if (unlikely(!priv))
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goto error;
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if (!priv->vlan)
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goto send;
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if (unlikely(skb_headroom(skb) < 2)) {
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if (pskb_expand_head(skb, 2, 0, GFP_ATOMIC) < 0)
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goto error;
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}
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buf = skb_push(skb, 2);
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buf[0] = 0x10;
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buf[1] = 0x80;
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send:
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return skb;
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error:
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dev_kfree_skb_any(skb);
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return NULL;
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}
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static void
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ar8216_mangle_rx(struct net_device *dev, struct sk_buff *skb)
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{
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struct ar8216_priv *priv;
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unsigned char *buf;
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int port, vlan;
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priv = dev->phy_ptr;
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if (!priv)
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return;
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/* don't strip the header if vlan mode is disabled */
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if (!priv->vlan)
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return;
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/* strip header, get vlan id */
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buf = skb->data;
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skb_pull(skb, 2);
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/* check for vlan header presence */
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if ((buf[12 + 2] != 0x81) || (buf[13 + 2] != 0x00))
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return;
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port = buf[0] & 0xf;
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/* no need to fix up packets coming from a tagged source */
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if (priv->vlan_tagged & (1 << port))
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return;
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/* lookup port vid from local table, the switch passes an invalid vlan id */
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vlan = priv->vlan_id[priv->pvid[port]];
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buf[14 + 2] &= 0xf0;
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buf[14 + 2] |= vlan >> 8;
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buf[15 + 2] = vlan & 0xff;
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}
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static int
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ar8216_wait_bit(struct ar8216_priv *priv, int reg, u32 mask, u32 val)
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{
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int timeout = 20;
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u32 t = 0;
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while (1) {
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t = priv->read(priv, reg);
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if ((t & mask) == val)
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return 0;
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if (timeout-- <= 0)
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break;
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udelay(10);
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}
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pr_err("ar8216: timeout on reg %08x: %08x & %08x != %08x\n",
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(unsigned int) reg, t, mask, val);
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return -ETIMEDOUT;
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}
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static void
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ar8216_vtu_op(struct ar8216_priv *priv, u32 op, u32 val)
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{
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if (ar8216_wait_bit(priv, AR8216_REG_VTU, AR8216_VTU_ACTIVE, 0))
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return;
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if ((op & AR8216_VTU_OP) == AR8216_VTU_OP_LOAD) {
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val &= AR8216_VTUDATA_MEMBER;
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val |= AR8216_VTUDATA_VALID;
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priv->write(priv, AR8216_REG_VTU_DATA, val);
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}
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op |= AR8216_VTU_ACTIVE;
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priv->write(priv, AR8216_REG_VTU, op);
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}
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static void
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ar8216_vtu_flush(struct ar8216_priv *priv)
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{
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ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
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}
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static void
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ar8216_vtu_load_vlan(struct ar8216_priv *priv, u32 vid, u32 port_mask)
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{
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u32 op;
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op = AR8216_VTU_OP_LOAD | (vid << AR8216_VTU_VID_S);
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ar8216_vtu_op(priv, op, port_mask);
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}
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static int
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ar8216_atu_flush(struct ar8216_priv *priv)
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{
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int ret;
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ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0);
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if (!ret)
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priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH);
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return ret;
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}
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static u32
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ar8216_read_port_status(struct ar8216_priv *priv, int port)
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{
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return priv->read(priv, AR8216_REG_PORT_STATUS(port));
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}
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static void
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ar8216_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
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u32 members, u32 pvid)
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{
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u32 header;
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if (chip_is_ar8216(priv) && priv->vlan && port == AR8216_PORT_CPU)
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header = AR8216_PORT_CTRL_HEADER;
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else
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header = 0;
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ar8216_rmw(priv, AR8216_REG_PORT_CTRL(port),
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AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
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AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
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AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
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AR8216_PORT_CTRL_LEARN | header |
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(egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
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(AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
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ar8216_rmw(priv, AR8216_REG_PORT_VLAN(port),
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AR8216_PORT_VLAN_DEST_PORTS | AR8216_PORT_VLAN_MODE |
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AR8216_PORT_VLAN_DEFAULT_ID,
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(members << AR8216_PORT_VLAN_DEST_PORTS_S) |
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(ingress << AR8216_PORT_VLAN_MODE_S) |
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(pvid << AR8216_PORT_VLAN_DEFAULT_ID_S));
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}
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static int
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ar8216_hw_init(struct ar8216_priv *priv)
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{
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return 0;
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}
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static void
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ar8216_init_globals(struct ar8216_priv *priv)
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{
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/* standard atheros magic */
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priv->write(priv, 0x38, 0xc000050e);
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ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
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AR8216_GCTRL_MTU, 1518 + 8 + 2);
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}
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static void
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ar8216_init_port(struct ar8216_priv *priv, int port)
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{
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/* Enable port learning and tx */
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priv->write(priv, AR8216_REG_PORT_CTRL(port),
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AR8216_PORT_CTRL_LEARN |
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(4 << AR8216_PORT_CTRL_STATE_S));
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priv->write(priv, AR8216_REG_PORT_VLAN(port), 0);
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if (port == AR8216_PORT_CPU) {
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priv->write(priv, AR8216_REG_PORT_STATUS(port),
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AR8216_PORT_STATUS_LINK_UP |
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(ar8xxx_has_gige(priv) ?
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AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) |
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AR8216_PORT_STATUS_TXMAC |
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AR8216_PORT_STATUS_RXMAC |
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(chip_is_ar8316(priv) ? AR8216_PORT_STATUS_RXFLOW : 0) |
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(chip_is_ar8316(priv) ? AR8216_PORT_STATUS_TXFLOW : 0) |
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AR8216_PORT_STATUS_DUPLEX);
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} else {
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priv->write(priv, AR8216_REG_PORT_STATUS(port),
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AR8216_PORT_STATUS_LINK_AUTO);
|
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}
|
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}
|
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|
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static const struct ar8xxx_chip ar8216_chip = {
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.hw_init = ar8216_hw_init,
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.init_globals = ar8216_init_globals,
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.init_port = ar8216_init_port,
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.setup_port = ar8216_setup_port,
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.read_port_status = ar8216_read_port_status,
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.atu_flush = ar8216_atu_flush,
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.vtu_flush = ar8216_vtu_flush,
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.vtu_load_vlan = ar8216_vtu_load_vlan,
|
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};
|
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|
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static void
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ar8236_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
|
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u32 members, u32 pvid)
|
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{
|
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ar8216_rmw(priv, AR8216_REG_PORT_CTRL(port),
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AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
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AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
|
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AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
|
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AR8216_PORT_CTRL_LEARN |
|
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(egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
|
|
(AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
|
|
|
|
ar8216_rmw(priv, AR8236_REG_PORT_VLAN(port),
|
|
AR8236_PORT_VLAN_DEFAULT_ID,
|
|
(pvid << AR8236_PORT_VLAN_DEFAULT_ID_S));
|
|
|
|
ar8216_rmw(priv, AR8236_REG_PORT_VLAN2(port),
|
|
AR8236_PORT_VLAN2_VLAN_MODE |
|
|
AR8236_PORT_VLAN2_MEMBER,
|
|
(ingress << AR8236_PORT_VLAN2_VLAN_MODE_S) |
|
|
(members << AR8236_PORT_VLAN2_MEMBER_S));
|
|
}
|
|
|
|
static int
|
|
ar8236_hw_init(struct ar8216_priv *priv)
|
|
{
|
|
int i;
|
|
struct mii_bus *bus;
|
|
|
|
if (priv->initialized)
|
|
return 0;
|
|
|
|
/* Initialize the PHYs */
|
|
bus = priv->phy->bus;
|
|
for (i = 0; i < 5; i++) {
|
|
mdiobus_write(bus, i, MII_ADVERTISE,
|
|
ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
|
|
ADVERTISE_PAUSE_ASYM);
|
|
mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
|
|
}
|
|
msleep(1000);
|
|
|
|
priv->initialized = true;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8236_init_globals(struct ar8216_priv *priv)
|
|
{
|
|
/* enable jumbo frames */
|
|
ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
|
|
AR8316_GCTRL_MTU, 9018 + 8 + 2);
|
|
}
|
|
|
|
static const struct ar8xxx_chip ar8236_chip = {
|
|
.hw_init = ar8236_hw_init,
|
|
.init_globals = ar8236_init_globals,
|
|
.init_port = ar8216_init_port,
|
|
.setup_port = ar8236_setup_port,
|
|
.read_port_status = ar8216_read_port_status,
|
|
.atu_flush = ar8216_atu_flush,
|
|
.vtu_flush = ar8216_vtu_flush,
|
|
.vtu_load_vlan = ar8216_vtu_load_vlan,
|
|
};
|
|
|
|
static int
|
|
ar8316_hw_init(struct ar8216_priv *priv)
|
|
{
|
|
int i;
|
|
u32 val, newval;
|
|
struct mii_bus *bus;
|
|
|
|
val = priv->read(priv, 0x8);
|
|
|
|
if (priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
|
|
if (priv->port4_phy) {
|
|
/* value taken from Ubiquiti RouterStation Pro */
|
|
newval = 0x81461bea;
|
|
printk(KERN_INFO "ar8316: Using port 4 as PHY\n");
|
|
} else {
|
|
newval = 0x01261be2;
|
|
printk(KERN_INFO "ar8316: Using port 4 as switch port\n");
|
|
}
|
|
} else if (priv->phy->interface == PHY_INTERFACE_MODE_GMII) {
|
|
/* value taken from AVM Fritz!Box 7390 sources */
|
|
newval = 0x010e5b71;
|
|
} else {
|
|
/* no known value for phy interface */
|
|
printk(KERN_ERR "ar8316: unsupported mii mode: %d.\n",
|
|
priv->phy->interface);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (val == newval)
|
|
goto out;
|
|
|
|
priv->write(priv, 0x8, newval);
|
|
|
|
/* Initialize the ports */
|
|
bus = priv->phy->bus;
|
|
for (i = 0; i < 5; i++) {
|
|
if ((i == 4) && priv->port4_phy &&
|
|
priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
|
|
/* work around for phy4 rgmii mode */
|
|
ar8216_phy_dbg_write(priv, i, 0x12, 0x480c);
|
|
/* rx delay */
|
|
ar8216_phy_dbg_write(priv, i, 0x0, 0x824e);
|
|
/* tx delay */
|
|
ar8216_phy_dbg_write(priv, i, 0x5, 0x3d47);
|
|
msleep(1000);
|
|
}
|
|
|
|
/* initialize the port itself */
|
|
mdiobus_write(bus, i, MII_ADVERTISE,
|
|
ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
|
|
mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
|
|
mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
|
|
msleep(1000);
|
|
}
|
|
|
|
out:
|
|
priv->initialized = true;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8316_init_globals(struct ar8216_priv *priv)
|
|
{
|
|
/* standard atheros magic */
|
|
priv->write(priv, 0x38, 0xc000050e);
|
|
|
|
/* enable cpu port to receive multicast and broadcast frames */
|
|
priv->write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f);
|
|
|
|
/* enable jumbo frames */
|
|
ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
|
|
AR8316_GCTRL_MTU, 9018 + 8 + 2);
|
|
}
|
|
|
|
static const struct ar8xxx_chip ar8316_chip = {
|
|
.caps = AR8XXX_CAP_GIGE,
|
|
.hw_init = ar8316_hw_init,
|
|
.init_globals = ar8316_init_globals,
|
|
.init_port = ar8216_init_port,
|
|
.setup_port = ar8216_setup_port,
|
|
.read_port_status = ar8216_read_port_status,
|
|
.atu_flush = ar8216_atu_flush,
|
|
.vtu_flush = ar8216_vtu_flush,
|
|
.vtu_load_vlan = ar8216_vtu_load_vlan,
|
|
};
|
|
|
|
static u32
|
|
ar8327_get_pad_cfg(struct ar8327_pad_cfg *cfg)
|
|
{
|
|
u32 t;
|
|
|
|
if (!cfg)
|
|
return 0;
|
|
|
|
t = 0;
|
|
switch (cfg->mode) {
|
|
case AR8327_PAD_NC:
|
|
break;
|
|
|
|
case AR8327_PAD_MAC2MAC_MII:
|
|
t = AR8327_PAD_MAC_MII_EN;
|
|
if (cfg->rxclk_sel)
|
|
t |= AR8327_PAD_MAC_MII_RXCLK_SEL;
|
|
if (cfg->txclk_sel)
|
|
t |= AR8327_PAD_MAC_MII_TXCLK_SEL;
|
|
break;
|
|
|
|
case AR8327_PAD_MAC2MAC_GMII:
|
|
t = AR8327_PAD_MAC_GMII_EN;
|
|
if (cfg->rxclk_sel)
|
|
t |= AR8327_PAD_MAC_GMII_RXCLK_SEL;
|
|
if (cfg->txclk_sel)
|
|
t |= AR8327_PAD_MAC_GMII_TXCLK_SEL;
|
|
break;
|
|
|
|
case AR8327_PAD_MAC_SGMII:
|
|
t = AR8327_PAD_SGMII_EN;
|
|
break;
|
|
|
|
case AR8327_PAD_MAC2PHY_MII:
|
|
t = AR8327_PAD_PHY_MII_EN;
|
|
if (cfg->rxclk_sel)
|
|
t |= AR8327_PAD_PHY_MII_RXCLK_SEL;
|
|
if (cfg->txclk_sel)
|
|
t |= AR8327_PAD_PHY_MII_TXCLK_SEL;
|
|
break;
|
|
|
|
case AR8327_PAD_MAC2PHY_GMII:
|
|
t = AR8327_PAD_PHY_GMII_EN;
|
|
if (cfg->pipe_rxclk_sel)
|
|
t |= AR8327_PAD_PHY_GMII_PIPE_RXCLK_SEL;
|
|
if (cfg->rxclk_sel)
|
|
t |= AR8327_PAD_PHY_GMII_RXCLK_SEL;
|
|
if (cfg->txclk_sel)
|
|
t |= AR8327_PAD_PHY_GMII_TXCLK_SEL;
|
|
break;
|
|
|
|
case AR8327_PAD_MAC_RGMII:
|
|
t = AR8327_PAD_RGMII_EN;
|
|
t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S;
|
|
t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S;
|
|
if (cfg->rxclk_delay_en)
|
|
t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN;
|
|
if (cfg->txclk_delay_en)
|
|
t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN;
|
|
break;
|
|
|
|
case AR8327_PAD_PHY_GMII:
|
|
t = AR8327_PAD_PHYX_GMII_EN;
|
|
break;
|
|
|
|
case AR8327_PAD_PHY_RGMII:
|
|
t = AR8327_PAD_PHYX_RGMII_EN;
|
|
break;
|
|
|
|
case AR8327_PAD_PHY_MII:
|
|
t = AR8327_PAD_PHYX_MII_EN;
|
|
break;
|
|
}
|
|
|
|
return t;
|
|
}
|
|
|
|
static void
|
|
ar8327_phy_fixup(struct ar8216_priv *priv, int phy)
|
|
{
|
|
switch (priv->chip_rev) {
|
|
case 1:
|
|
/* For 100M waveform */
|
|
ar8216_phy_dbg_write(priv, phy, 0, 0x02ea);
|
|
/* Turn on Gigabit clock */
|
|
ar8216_phy_dbg_write(priv, phy, 0x3d, 0x68a0);
|
|
break;
|
|
|
|
case 2:
|
|
ar8216_phy_mmd_write(priv, phy, 0x7, 0x3c);
|
|
ar8216_phy_mmd_write(priv, phy, 0x4007, 0x0);
|
|
/* fallthrough */
|
|
case 4:
|
|
ar8216_phy_mmd_write(priv, phy, 0x3, 0x800d);
|
|
ar8216_phy_mmd_write(priv, phy, 0x4003, 0x803f);
|
|
|
|
ar8216_phy_dbg_write(priv, phy, 0x3d, 0x6860);
|
|
ar8216_phy_dbg_write(priv, phy, 0x5, 0x2c46);
|
|
ar8216_phy_dbg_write(priv, phy, 0x3c, 0x6000);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
ar8327_hw_init(struct ar8216_priv *priv)
|
|
{
|
|
struct ar8327_platform_data *pdata;
|
|
struct ar8327_led_cfg *led_cfg;
|
|
struct mii_bus *bus;
|
|
u32 pos, new_pos;
|
|
u32 t;
|
|
int i;
|
|
|
|
pdata = priv->phy->dev.platform_data;
|
|
if (!pdata)
|
|
return -EINVAL;
|
|
|
|
t = ar8327_get_pad_cfg(pdata->pad0_cfg);
|
|
priv->write(priv, AR8327_REG_PAD0_MODE, t);
|
|
t = ar8327_get_pad_cfg(pdata->pad5_cfg);
|
|
priv->write(priv, AR8327_REG_PAD5_MODE, t);
|
|
t = ar8327_get_pad_cfg(pdata->pad6_cfg);
|
|
priv->write(priv, AR8327_REG_PAD6_MODE, t);
|
|
|
|
pos = priv->read(priv, AR8327_REG_POWER_ON_STRIP);
|
|
new_pos = pos;
|
|
|
|
led_cfg = pdata->led_cfg;
|
|
if (led_cfg) {
|
|
if (led_cfg->open_drain)
|
|
new_pos |= AR8327_POWER_ON_STRIP_LED_OPEN_EN;
|
|
else
|
|
new_pos &= ~AR8327_POWER_ON_STRIP_LED_OPEN_EN;
|
|
|
|
priv->write(priv, AR8327_REG_LED_CTRL0, led_cfg->led_ctrl0);
|
|
priv->write(priv, AR8327_REG_LED_CTRL1, led_cfg->led_ctrl1);
|
|
priv->write(priv, AR8327_REG_LED_CTRL2, led_cfg->led_ctrl2);
|
|
priv->write(priv, AR8327_REG_LED_CTRL3, led_cfg->led_ctrl3);
|
|
}
|
|
|
|
if (new_pos != pos) {
|
|
new_pos |= AR8327_POWER_ON_STRIP_POWER_ON_SEL;
|
|
priv->write(priv, AR8327_REG_POWER_ON_STRIP, new_pos);
|
|
}
|
|
|
|
bus = priv->phy->bus;
|
|
for (i = 0; i < AR8327_NUM_PHYS; i++) {
|
|
ar8327_phy_fixup(priv, i);
|
|
|
|
/* start aneg on the PHY */
|
|
mdiobus_write(bus, i, MII_ADVERTISE, ADVERTISE_ALL |
|
|
ADVERTISE_PAUSE_CAP |
|
|
ADVERTISE_PAUSE_ASYM);
|
|
mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
|
|
mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
|
|
}
|
|
|
|
msleep(1000);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8327_init_globals(struct ar8216_priv *priv)
|
|
{
|
|
u32 t;
|
|
|
|
/* enable CPU port and disable mirror port */
|
|
t = AR8327_FWD_CTRL0_CPU_PORT_EN |
|
|
AR8327_FWD_CTRL0_MIRROR_PORT;
|
|
priv->write(priv, AR8327_REG_FWD_CTRL0, t);
|
|
|
|
/* forward multicast and broadcast frames to CPU */
|
|
t = (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_UC_FLOOD_S) |
|
|
(AR8327_PORTS_ALL << AR8327_FWD_CTRL1_MC_FLOOD_S) |
|
|
(AR8327_PORTS_ALL << AR8327_FWD_CTRL1_BC_FLOOD_S);
|
|
priv->write(priv, AR8327_REG_FWD_CTRL1, t);
|
|
|
|
/* setup MTU */
|
|
ar8216_rmw(priv, AR8327_REG_MAX_FRAME_SIZE,
|
|
AR8327_MAX_FRAME_SIZE_MTU, 1518 + 8 + 2);
|
|
}
|
|
|
|
static void
|
|
ar8327_init_cpuport(struct ar8216_priv *priv)
|
|
{
|
|
struct ar8327_platform_data *pdata;
|
|
struct ar8327_port_cfg *cfg;
|
|
u32 t;
|
|
|
|
pdata = priv->phy->dev.platform_data;
|
|
if (!pdata)
|
|
return;
|
|
|
|
cfg = &pdata->cpuport_cfg;
|
|
if (!cfg->force_link) {
|
|
priv->write(priv, AR8327_REG_PORT_STATUS(AR8216_PORT_CPU),
|
|
AR8216_PORT_STATUS_LINK_AUTO);
|
|
return;
|
|
}
|
|
|
|
t = AR8216_PORT_STATUS_TXMAC | AR8216_PORT_STATUS_RXMAC;
|
|
t |= cfg->duplex ? AR8216_PORT_STATUS_DUPLEX : 0;
|
|
t |= cfg->rxpause ? AR8216_PORT_STATUS_RXFLOW : 0;
|
|
t |= cfg->txpause ? AR8216_PORT_STATUS_TXFLOW : 0;
|
|
switch (cfg->speed) {
|
|
case AR8327_PORT_SPEED_10:
|
|
t |= AR8216_PORT_SPEED_10M;
|
|
break;
|
|
case AR8327_PORT_SPEED_100:
|
|
t |= AR8216_PORT_SPEED_100M;
|
|
break;
|
|
case AR8327_PORT_SPEED_1000:
|
|
t |= AR8216_PORT_SPEED_1000M;
|
|
break;
|
|
}
|
|
|
|
priv->write(priv, AR8327_REG_PORT_STATUS(AR8216_PORT_CPU), t);
|
|
}
|
|
|
|
static void
|
|
ar8327_init_port(struct ar8216_priv *priv, int port)
|
|
{
|
|
u32 t;
|
|
|
|
if (port == AR8216_PORT_CPU) {
|
|
ar8327_init_cpuport(priv);
|
|
} else {
|
|
t = AR8216_PORT_STATUS_LINK_AUTO;
|
|
priv->write(priv, AR8327_REG_PORT_STATUS(port), t);
|
|
}
|
|
|
|
priv->write(priv, AR8327_REG_PORT_HEADER(port), 0);
|
|
|
|
priv->write(priv, AR8327_REG_PORT_VLAN0(port), 0);
|
|
|
|
t = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH << AR8327_PORT_VLAN1_OUT_MODE_S;
|
|
priv->write(priv, AR8327_REG_PORT_VLAN1(port), t);
|
|
|
|
t = AR8327_PORT_LOOKUP_LEARN;
|
|
t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
|
|
priv->write(priv, AR8327_REG_PORT_LOOKUP(port), t);
|
|
}
|
|
|
|
static u32
|
|
ar8327_read_port_status(struct ar8216_priv *priv, int port)
|
|
{
|
|
return priv->read(priv, AR8327_REG_PORT_STATUS(port));
|
|
}
|
|
|
|
static int
|
|
ar8327_atu_flush(struct ar8216_priv *priv)
|
|
{
|
|
int ret;
|
|
|
|
ret = ar8216_wait_bit(priv, AR8327_REG_ATU_FUNC,
|
|
AR8327_ATU_FUNC_BUSY, 0);
|
|
if (!ret)
|
|
priv->write(priv, AR8327_REG_ATU_FUNC,
|
|
AR8327_ATU_FUNC_OP_FLUSH);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
ar8327_vtu_op(struct ar8216_priv *priv, u32 op, u32 val)
|
|
{
|
|
if (ar8216_wait_bit(priv, AR8327_REG_VTU_FUNC1,
|
|
AR8327_VTU_FUNC1_BUSY, 0))
|
|
return;
|
|
|
|
if ((op & AR8327_VTU_FUNC1_OP) == AR8327_VTU_FUNC1_OP_LOAD)
|
|
priv->write(priv, AR8327_REG_VTU_FUNC0, val);
|
|
|
|
op |= AR8327_VTU_FUNC1_BUSY;
|
|
priv->write(priv, AR8327_REG_VTU_FUNC1, op);
|
|
}
|
|
|
|
static void
|
|
ar8327_vtu_flush(struct ar8216_priv *priv)
|
|
{
|
|
ar8327_vtu_op(priv, AR8327_VTU_FUNC1_OP_FLUSH, 0);
|
|
}
|
|
|
|
static void
|
|
ar8327_vtu_load_vlan(struct ar8216_priv *priv, u32 vid, u32 port_mask)
|
|
{
|
|
u32 op;
|
|
u32 val;
|
|
int i;
|
|
|
|
op = AR8327_VTU_FUNC1_OP_LOAD | (vid << AR8327_VTU_FUNC1_VID_S);
|
|
val = AR8327_VTU_FUNC0_VALID | AR8327_VTU_FUNC0_IVL;
|
|
for (i = 0; i < AR8327_NUM_PORTS; i++) {
|
|
u32 mode;
|
|
|
|
if ((port_mask & BIT(i)) == 0)
|
|
mode = AR8327_VTU_FUNC0_EG_MODE_NOT;
|
|
else if (priv->vlan == 0)
|
|
mode = AR8327_VTU_FUNC0_EG_MODE_KEEP;
|
|
else if (priv->vlan_tagged & BIT(i))
|
|
mode = AR8327_VTU_FUNC0_EG_MODE_TAG;
|
|
else
|
|
mode = AR8327_VTU_FUNC0_EG_MODE_UNTAG;
|
|
|
|
val |= mode << AR8327_VTU_FUNC0_EG_MODE_S(i);
|
|
}
|
|
ar8327_vtu_op(priv, op, val);
|
|
}
|
|
|
|
static void
|
|
ar8327_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress,
|
|
u32 members, u32 pvid)
|
|
{
|
|
u32 t;
|
|
u32 mode;
|
|
|
|
t = pvid << AR8327_PORT_VLAN0_DEF_SVID_S;
|
|
t |= pvid << AR8327_PORT_VLAN0_DEF_CVID_S;
|
|
priv->write(priv, AR8327_REG_PORT_VLAN0(port), t);
|
|
|
|
mode = AR8327_PORT_VLAN1_OUT_MODE_UNMOD;
|
|
switch (egress) {
|
|
case AR8216_OUT_KEEP:
|
|
mode = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH;
|
|
break;
|
|
case AR8216_OUT_STRIP_VLAN:
|
|
mode = AR8327_PORT_VLAN1_OUT_MODE_UNTAG;
|
|
break;
|
|
case AR8216_OUT_ADD_VLAN:
|
|
mode = AR8327_PORT_VLAN1_OUT_MODE_TAG;
|
|
break;
|
|
}
|
|
|
|
t = AR8327_PORT_VLAN1_PORT_VLAN_PROP;
|
|
t |= mode << AR8327_PORT_VLAN1_OUT_MODE_S;
|
|
priv->write(priv, AR8327_REG_PORT_VLAN1(port), t);
|
|
|
|
t = members;
|
|
t |= AR8327_PORT_LOOKUP_LEARN;
|
|
t |= ingress << AR8327_PORT_LOOKUP_IN_MODE_S;
|
|
t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
|
|
priv->write(priv, AR8327_REG_PORT_LOOKUP(port), t);
|
|
}
|
|
|
|
static const struct ar8xxx_chip ar8327_chip = {
|
|
.caps = AR8XXX_CAP_GIGE,
|
|
.hw_init = ar8327_hw_init,
|
|
.init_globals = ar8327_init_globals,
|
|
.init_port = ar8327_init_port,
|
|
.setup_port = ar8327_setup_port,
|
|
.read_port_status = ar8327_read_port_status,
|
|
.atu_flush = ar8327_atu_flush,
|
|
.vtu_flush = ar8327_vtu_flush,
|
|
.vtu_load_vlan = ar8327_vtu_load_vlan,
|
|
};
|
|
|
|
static int
|
|
ar8216_sw_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
priv->vlan = !!val->value.i;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
val->value.i = priv->vlan;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
ar8216_sw_set_pvid(struct switch_dev *dev, int port, int vlan)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
|
|
/* make sure no invalid PVIDs get set */
|
|
|
|
if (vlan >= dev->vlans)
|
|
return -EINVAL;
|
|
|
|
priv->pvid[port] = vlan;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_get_pvid(struct switch_dev *dev, int port, int *vlan)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
*vlan = priv->pvid[port];
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_set_vid(struct switch_dev *dev, const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
priv->vlan_id[val->port_vlan] = val->value.i;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
val->value.i = priv->vlan_id[val->port_vlan];
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_get_port_link(struct switch_dev *dev, int port,
|
|
struct switch_port_link *link)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
|
|
ar8216_read_port_link(priv, port, link);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
u8 ports = priv->vlan_table[val->port_vlan];
|
|
int i;
|
|
|
|
val->len = 0;
|
|
for (i = 0; i < dev->ports; i++) {
|
|
struct switch_port *p;
|
|
|
|
if (!(ports & (1 << i)))
|
|
continue;
|
|
|
|
p = &val->value.ports[val->len++];
|
|
p->id = i;
|
|
if (priv->vlan_tagged & (1 << i))
|
|
p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
|
|
else
|
|
p->flags = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
u8 *vt = &priv->vlan_table[val->port_vlan];
|
|
int i, j;
|
|
|
|
*vt = 0;
|
|
for (i = 0; i < val->len; i++) {
|
|
struct switch_port *p = &val->value.ports[i];
|
|
|
|
if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
|
|
priv->vlan_tagged |= (1 << p->id);
|
|
} else {
|
|
priv->vlan_tagged &= ~(1 << p->id);
|
|
priv->pvid[p->id] = val->port_vlan;
|
|
|
|
/* make sure that an untagged port does not
|
|
* appear in other vlans */
|
|
for (j = 0; j < AR8X16_MAX_VLANS; j++) {
|
|
if (j == val->port_vlan)
|
|
continue;
|
|
priv->vlan_table[j] &= ~(1 << p->id);
|
|
}
|
|
}
|
|
|
|
*vt |= 1 << p->id;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_hw_apply(struct switch_dev *dev)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
u8 portmask[AR8X16_MAX_PORTS];
|
|
int i, j;
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
/* flush all vlan translation unit entries */
|
|
priv->chip->vtu_flush(priv);
|
|
|
|
memset(portmask, 0, sizeof(portmask));
|
|
if (!priv->init) {
|
|
/* calculate the port destination masks and load vlans
|
|
* into the vlan translation unit */
|
|
for (j = 0; j < AR8X16_MAX_VLANS; j++) {
|
|
u8 vp = priv->vlan_table[j];
|
|
|
|
if (!vp)
|
|
continue;
|
|
|
|
for (i = 0; i < dev->ports; i++) {
|
|
u8 mask = (1 << i);
|
|
if (vp & mask)
|
|
portmask[i] |= vp & ~mask;
|
|
}
|
|
|
|
priv->chip->vtu_load_vlan(priv, priv->vlan_id[j],
|
|
priv->vlan_table[j]);
|
|
}
|
|
} else {
|
|
/* vlan disabled:
|
|
* isolate all ports, but connect them to the cpu port */
|
|
for (i = 0; i < dev->ports; i++) {
|
|
if (i == AR8216_PORT_CPU)
|
|
continue;
|
|
|
|
portmask[i] = 1 << AR8216_PORT_CPU;
|
|
portmask[AR8216_PORT_CPU] |= (1 << i);
|
|
}
|
|
}
|
|
|
|
/* update the port destination mask registers and tag settings */
|
|
for (i = 0; i < dev->ports; i++) {
|
|
int egress, ingress;
|
|
int pvid;
|
|
|
|
if (priv->vlan) {
|
|
pvid = priv->vlan_id[priv->pvid[i]];
|
|
if (priv->vlan_tagged & (1 << i))
|
|
egress = AR8216_OUT_ADD_VLAN;
|
|
else
|
|
egress = AR8216_OUT_STRIP_VLAN;
|
|
ingress = AR8216_IN_SECURE;
|
|
} else {
|
|
pvid = i;
|
|
egress = AR8216_OUT_KEEP;
|
|
ingress = AR8216_IN_PORT_ONLY;
|
|
}
|
|
|
|
priv->chip->setup_port(priv, i, egress, ingress, portmask[i],
|
|
pvid);
|
|
}
|
|
mutex_unlock(&priv->reg_mutex);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_sw_reset_switch(struct switch_dev *dev)
|
|
{
|
|
struct ar8216_priv *priv = to_ar8216(dev);
|
|
int i;
|
|
|
|
mutex_lock(&priv->reg_mutex);
|
|
memset(&priv->vlan, 0, sizeof(struct ar8216_priv) -
|
|
offsetof(struct ar8216_priv, vlan));
|
|
|
|
for (i = 0; i < AR8X16_MAX_VLANS; i++)
|
|
priv->vlan_id[i] = i;
|
|
|
|
/* Configure all ports */
|
|
for (i = 0; i < dev->ports; i++)
|
|
priv->chip->init_port(priv, i);
|
|
|
|
priv->chip->init_globals(priv);
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
return ar8216_sw_hw_apply(dev);
|
|
}
|
|
|
|
static struct switch_attr ar8216_globals[] = {
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "enable_vlan",
|
|
.description = "Enable VLAN mode",
|
|
.set = ar8216_sw_set_vlan,
|
|
.get = ar8216_sw_get_vlan,
|
|
.max = 1
|
|
},
|
|
};
|
|
|
|
static struct switch_attr ar8216_port[] = {
|
|
};
|
|
|
|
static struct switch_attr ar8216_vlan[] = {
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "vid",
|
|
.description = "VLAN ID (0-4094)",
|
|
.set = ar8216_sw_set_vid,
|
|
.get = ar8216_sw_get_vid,
|
|
.max = 4094,
|
|
},
|
|
};
|
|
|
|
static const struct switch_dev_ops ar8216_sw_ops = {
|
|
.attr_global = {
|
|
.attr = ar8216_globals,
|
|
.n_attr = ARRAY_SIZE(ar8216_globals),
|
|
},
|
|
.attr_port = {
|
|
.attr = ar8216_port,
|
|
.n_attr = ARRAY_SIZE(ar8216_port),
|
|
},
|
|
.attr_vlan = {
|
|
.attr = ar8216_vlan,
|
|
.n_attr = ARRAY_SIZE(ar8216_vlan),
|
|
},
|
|
.get_port_pvid = ar8216_sw_get_pvid,
|
|
.set_port_pvid = ar8216_sw_set_pvid,
|
|
.get_vlan_ports = ar8216_sw_get_ports,
|
|
.set_vlan_ports = ar8216_sw_set_ports,
|
|
.apply_config = ar8216_sw_hw_apply,
|
|
.reset_switch = ar8216_sw_reset_switch,
|
|
.get_port_link = ar8216_sw_get_port_link,
|
|
};
|
|
|
|
static int
|
|
ar8216_id_chip(struct ar8216_priv *priv)
|
|
{
|
|
u32 val;
|
|
u16 id;
|
|
int i;
|
|
|
|
val = ar8216_mii_read(priv, AR8216_REG_CTRL);
|
|
if (val == ~0)
|
|
return -ENODEV;
|
|
|
|
id = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
|
|
for (i = 0; i < AR8X16_PROBE_RETRIES; i++) {
|
|
u16 t;
|
|
|
|
val = ar8216_mii_read(priv, AR8216_REG_CTRL);
|
|
if (val == ~0)
|
|
return -ENODEV;
|
|
|
|
t = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
|
|
if (t != id)
|
|
return -ENODEV;
|
|
}
|
|
|
|
priv->chip_ver = (id & AR8216_CTRL_VERSION) >> AR8216_CTRL_VERSION_S;
|
|
priv->chip_rev = (id & AR8216_CTRL_REVISION);
|
|
|
|
switch (priv->chip_ver) {
|
|
case AR8XXX_VER_AR8216:
|
|
priv->chip = &ar8216_chip;
|
|
break;
|
|
case AR8XXX_VER_AR8236:
|
|
priv->chip = &ar8236_chip;
|
|
break;
|
|
case AR8XXX_VER_AR8316:
|
|
priv->chip = &ar8316_chip;
|
|
break;
|
|
case AR8XXX_VER_AR8327:
|
|
priv->mii_lo_first = true;
|
|
priv->chip = &ar8327_chip;
|
|
break;
|
|
default:
|
|
printk(KERN_DEBUG
|
|
"ar8216: Unknown Atheros device [ver=%d, rev=%d, phy_id=%04x%04x]\n",
|
|
priv->chip_ver, priv->chip_rev,
|
|
mdiobus_read(priv->phy->bus, priv->phy->addr, 2),
|
|
mdiobus_read(priv->phy->bus, priv->phy->addr, 3));
|
|
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8216_config_init(struct phy_device *pdev)
|
|
{
|
|
struct ar8216_priv *priv = pdev->priv;
|
|
struct net_device *dev = pdev->attached_dev;
|
|
struct switch_dev *swdev;
|
|
int ret;
|
|
|
|
if (!priv) {
|
|
priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL);
|
|
if (priv == NULL)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
priv->phy = pdev;
|
|
|
|
ret = ar8216_id_chip(priv);
|
|
if (ret)
|
|
goto err_free_priv;
|
|
|
|
if (pdev->addr != 0) {
|
|
if (ar8xxx_has_gige(priv)) {
|
|
pdev->supported |= SUPPORTED_1000baseT_Full;
|
|
pdev->advertising |= ADVERTISED_1000baseT_Full;
|
|
}
|
|
|
|
if (chip_is_ar8316(priv)) {
|
|
/* check if we're attaching to the switch twice */
|
|
pdev = pdev->bus->phy_map[0];
|
|
if (!pdev) {
|
|
kfree(priv);
|
|
return 0;
|
|
}
|
|
|
|
/* switch device has not been initialized, reuse priv */
|
|
if (!pdev->priv) {
|
|
priv->port4_phy = true;
|
|
pdev->priv = priv;
|
|
return 0;
|
|
}
|
|
|
|
kfree(priv);
|
|
|
|
/* switch device has been initialized, reinit */
|
|
priv = pdev->priv;
|
|
priv->dev.ports = (AR8216_NUM_PORTS - 1);
|
|
priv->initialized = false;
|
|
priv->port4_phy = true;
|
|
ar8316_hw_init(priv);
|
|
return 0;
|
|
}
|
|
|
|
kfree(priv);
|
|
return 0;
|
|
}
|
|
|
|
if (ar8xxx_has_gige(priv))
|
|
pdev->supported = SUPPORTED_1000baseT_Full;
|
|
else
|
|
pdev->supported = SUPPORTED_100baseT_Full;
|
|
pdev->advertising = pdev->supported;
|
|
|
|
mutex_init(&priv->reg_mutex);
|
|
priv->read = ar8216_mii_read;
|
|
priv->write = ar8216_mii_write;
|
|
|
|
pdev->priv = priv;
|
|
|
|
swdev = &priv->dev;
|
|
swdev->cpu_port = AR8216_PORT_CPU;
|
|
swdev->ops = &ar8216_sw_ops;
|
|
swdev->ports = AR8216_NUM_PORTS;
|
|
|
|
if (chip_is_ar8316(priv)) {
|
|
swdev->name = "Atheros AR8316";
|
|
swdev->vlans = AR8X16_MAX_VLANS;
|
|
|
|
if (priv->port4_phy) {
|
|
/* port 5 connected to the other mac, therefore unusable */
|
|
swdev->ports = (AR8216_NUM_PORTS - 1);
|
|
}
|
|
} else if (chip_is_ar8236(priv)) {
|
|
swdev->name = "Atheros AR8236";
|
|
swdev->vlans = AR8216_NUM_VLANS;
|
|
swdev->ports = AR8216_NUM_PORTS;
|
|
} else if (chip_is_ar8327(priv)) {
|
|
swdev->name = "Atheros AR8327";
|
|
swdev->vlans = AR8X16_MAX_VLANS;
|
|
swdev->ports = AR8327_NUM_PORTS;
|
|
} else {
|
|
swdev->name = "Atheros AR8216";
|
|
swdev->vlans = AR8216_NUM_VLANS;
|
|
}
|
|
|
|
ret = register_switch(&priv->dev, pdev->attached_dev);
|
|
if (ret)
|
|
goto err_free_priv;
|
|
|
|
printk(KERN_INFO "%s: %s switch driver attached.\n",
|
|
pdev->attached_dev->name, swdev->name);
|
|
|
|
priv->init = true;
|
|
|
|
ret = priv->chip->hw_init(priv);
|
|
if (ret)
|
|
goto err_free_priv;
|
|
|
|
ret = ar8216_sw_reset_switch(&priv->dev);
|
|
if (ret)
|
|
goto err_free_priv;
|
|
|
|
dev->phy_ptr = priv;
|
|
|
|
/* VID fixup only needed on ar8216 */
|
|
if (chip_is_ar8216(priv) && pdev->addr == 0) {
|
|
dev->priv_flags |= IFF_NO_IP_ALIGN;
|
|
dev->eth_mangle_rx = ar8216_mangle_rx;
|
|
dev->eth_mangle_tx = ar8216_mangle_tx;
|
|
}
|
|
|
|
priv->init = false;
|
|
|
|
return 0;
|
|
|
|
err_free_priv:
|
|
kfree(priv);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
ar8216_read_status(struct phy_device *phydev)
|
|
{
|
|
struct ar8216_priv *priv = phydev->priv;
|
|
struct switch_port_link link;
|
|
int ret;
|
|
|
|
if (phydev->addr != 0)
|
|
return genphy_read_status(phydev);
|
|
|
|
ar8216_read_port_link(priv, phydev->addr, &link);
|
|
phydev->link = !!link.link;
|
|
if (!phydev->link)
|
|
return 0;
|
|
|
|
switch (link.speed) {
|
|
case SWITCH_PORT_SPEED_10:
|
|
phydev->speed = SPEED_10;
|
|
break;
|
|
case SWITCH_PORT_SPEED_100:
|
|
phydev->speed = SPEED_100;
|
|
break;
|
|
case SWITCH_PORT_SPEED_1000:
|
|
phydev->speed = SPEED_1000;
|
|
break;
|
|
default:
|
|
phydev->speed = 0;
|
|
}
|
|
phydev->duplex = link.duplex ? DUPLEX_FULL : DUPLEX_HALF;
|
|
|
|
/* flush the address translation unit */
|
|
mutex_lock(&priv->reg_mutex);
|
|
ret = priv->chip->atu_flush(priv);
|
|
mutex_unlock(&priv->reg_mutex);
|
|
|
|
phydev->state = PHY_RUNNING;
|
|
netif_carrier_on(phydev->attached_dev);
|
|
phydev->adjust_link(phydev->attached_dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
ar8216_config_aneg(struct phy_device *phydev)
|
|
{
|
|
if (phydev->addr == 0)
|
|
return 0;
|
|
|
|
return genphy_config_aneg(phydev);
|
|
}
|
|
|
|
static int
|
|
ar8216_probe(struct phy_device *pdev)
|
|
{
|
|
struct ar8216_priv priv;
|
|
|
|
priv.phy = pdev;
|
|
return ar8216_id_chip(&priv);
|
|
}
|
|
|
|
static void
|
|
ar8216_remove(struct phy_device *pdev)
|
|
{
|
|
struct ar8216_priv *priv = pdev->priv;
|
|
struct net_device *dev = pdev->attached_dev;
|
|
|
|
if (!priv)
|
|
return;
|
|
|
|
dev->priv_flags &= ~IFF_NO_IP_ALIGN;
|
|
dev->eth_mangle_rx = NULL;
|
|
dev->eth_mangle_tx = NULL;
|
|
|
|
if (pdev->addr == 0)
|
|
unregister_switch(&priv->dev);
|
|
kfree(priv);
|
|
}
|
|
|
|
static struct phy_driver ar8216_driver = {
|
|
.phy_id = 0x004d0000,
|
|
.name = "Atheros AR8216/AR8236/AR8316",
|
|
.phy_id_mask = 0xffff0000,
|
|
.features = PHY_BASIC_FEATURES,
|
|
.probe = ar8216_probe,
|
|
.remove = ar8216_remove,
|
|
.config_init = &ar8216_config_init,
|
|
.config_aneg = &ar8216_config_aneg,
|
|
.read_status = &ar8216_read_status,
|
|
.driver = { .owner = THIS_MODULE },
|
|
};
|
|
|
|
int __init
|
|
ar8216_init(void)
|
|
{
|
|
return phy_driver_register(&ar8216_driver);
|
|
}
|
|
|
|
void __exit
|
|
ar8216_exit(void)
|
|
{
|
|
phy_driver_unregister(&ar8216_driver);
|
|
}
|
|
|
|
module_init(ar8216_init);
|
|
module_exit(ar8216_exit);
|
|
MODULE_LICENSE("GPL");
|
|
|