X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/91f1cdc854ccc58fc92274eb848281e5d500a3f1..5ba8709ee978e8a8c70e42f362a4934122a406ab:/target/linux/generic/files/drivers/net/phy/ar8216.c?ds=inline diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c index 7dd328230..7214fa232 100644 --- a/target/linux/generic/files/drivers/net/phy/ar8216.c +++ b/target/linux/generic/files/drivers/net/phy/ar8216.c @@ -2,6 +2,7 @@ * ar8216.c: AR8216 switch driver * * Copyright (C) 2009 Felix Fietkau + * Copyright (C) 2011-2012 Gabor Juhos * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -30,11 +31,31 @@ #include #include #include +#include #include "ar8216.h" /* size of the vlan table */ #define AR8X16_MAX_VLANS 128 #define AR8X16_PROBE_RETRIES 10 +#define AR8X16_MAX_PORTS 8 + +struct ar8216_priv; + +#define AR8XXX_CAP_GIGE BIT(0) + +struct ar8xxx_chip { + unsigned long caps; + + int (*hw_init)(struct ar8216_priv *priv); + void (*init_globals)(struct ar8216_priv *priv); + void (*init_port)(struct ar8216_priv *priv, int port); + void (*setup_port)(struct ar8216_priv *priv, int port, u32 egress, + u32 ingress, u32 members, u32 pvid); + u32 (*read_port_status)(struct ar8216_priv *priv, int port); + int (*atu_flush)(struct ar8216_priv *priv); + void (*vtu_flush)(struct ar8216_priv *priv); + void (*vtu_load_vlan)(struct ar8216_priv *priv, u32 vid, u32 port_mask); +}; struct ar8216_priv { struct switch_dev dev; @@ -44,23 +65,30 @@ struct ar8216_priv { const struct net_device_ops *ndo_old; struct net_device_ops ndo; struct mutex reg_mutex; - int chip; + int chip_type; + const struct ar8xxx_chip *chip; bool initialized; bool port4_phy; char buf[80]; bool init; + bool mii_lo_first; /* all fields below are cleared on reset */ bool vlan; u16 vlan_id[AR8X16_MAX_VLANS]; u8 vlan_table[AR8X16_MAX_VLANS]; u8 vlan_tagged; - u16 pvid[AR8216_NUM_PORTS]; + u16 pvid[AR8X16_MAX_PORTS]; }; #define to_ar8216(_dev) container_of(_dev, struct ar8216_priv, dev) +static inline bool ar8xxx_has_gige(struct ar8216_priv *priv) +{ + return priv->chip->caps & AR8XXX_CAP_GIGE; +} + static inline void split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page) { @@ -87,7 +115,7 @@ ar8216_mii_read(struct ar8216_priv *priv, int reg) mutex_lock(&bus->mdio_lock); bus->write(bus, 0x18, 0, page); - msleep(1); /* wait for the page switch to propagate */ + usleep_range(1000, 2000); /* wait for the page switch to propagate */ lo = bus->read(bus, 0x10 | r2, r1); hi = bus->read(bus, 0x10 | r2, r1 + 1); @@ -111,9 +139,14 @@ ar8216_mii_write(struct ar8216_priv *priv, int reg, u32 val) mutex_lock(&bus->mdio_lock); bus->write(bus, 0x18, 0, r3); - msleep(1); /* wait for the page switch to propagate */ - bus->write(bus, 0x10 | r2, r1 + 1, hi); - bus->write(bus, 0x10 | r2, r1, lo); + usleep_range(1000, 2000); /* wait for the page switch to propagate */ + if (priv->mii_lo_first) { + bus->write(bus, 0x10 | r2, r1, lo); + bus->write(bus, 0x10 | r2, r1 + 1, hi); + } else { + bus->write(bus, 0x10 | r2, r1 + 1, hi); + bus->write(bus, 0x10 | r2, r1, lo); + } mutex_unlock(&bus->mdio_lock); } @@ -145,57 +178,6 @@ ar8216_rmw(struct ar8216_priv *priv, int reg, u32 mask, u32 val) return v; } -static inline int -ar8216_id_chip(struct ar8216_priv *priv) -{ - u32 val; - u16 id; - int i; - - priv->chip = UNKNOWN; - - 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; - } - - switch (id) { - case 0x0101: - priv->chip = AR8216; - break; - case 0x0301: - priv->chip = AR8236; - break; - case 0x1000: - case 0x1001: - priv->chip = AR8316; - break; - default: - printk(KERN_DEBUG - "ar8216: Unknown Atheros device [ver=%d, rev=%d, phy_id=%04x%04x]\n", - (int)(id >> AR8216_CTRL_VERSION_S), - (int)(id & AR8216_CTRL_REVISION), - mdiobus_read(priv->phy->bus, priv->phy->addr, 2), - mdiobus_read(priv->phy->bus, priv->phy->addr, 3)); - - return -ENODEV; - } - - return 0; -} - static void ar8216_read_port_link(struct ar8216_priv *priv, int port, struct switch_port_link *link) @@ -205,7 +187,7 @@ ar8216_read_port_link(struct ar8216_priv *priv, int port, memset(link, '\0', sizeof(*link)); - status = priv->read(priv, AR8216_REG_PORT_STATUS(port)); + status = priv->chip->read_port_status(priv, port); link->aneg = !!(status & AR8216_PORT_STATUS_LINK_AUTO); if (link->aneg) { @@ -239,75 +221,6 @@ ar8216_read_port_link(struct ar8216_priv *priv, int port, } } -static int -ar8216_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_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_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_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_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_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_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_mangle_tx(struct sk_buff *skb, struct net_device *dev) { @@ -404,88 +317,6 @@ ar8216_netif_receive_skb(struct sk_buff *skb) return ar8216_mangle_rx(skb, 1); } - -static struct switch_attr ar8216_globals[] = { - { - .type = SWITCH_TYPE_INT, - .name = "enable_vlan", - .description = "Enable VLAN mode", - .set = ar8216_set_vlan, - .get = ar8216_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_set_vid, - .get = ar8216_get_vid, - .max = 4094, - }, -}; - - -static int -ar8216_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 < AR8216_NUM_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_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_wait_bit(struct ar8216_priv *priv, int reg, u32 mask, u32 val) { @@ -522,13 +353,46 @@ ar8216_vtu_op(struct ar8216_priv *priv, u32 op, u32 val) priv->write(priv, AR8216_REG_VTU, op); } +static void +ar8216_vtu_flush(struct ar8216_priv *priv) +{ + ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0); +} + +static void +ar8216_vtu_load_vlan(struct ar8216_priv *priv, u32 vid, u32 port_mask) +{ + u32 op; + + op = AR8216_VTU_OP_LOAD | (vid << AR8216_VTU_VID_S); + ar8216_vtu_op(priv, op, port_mask); +} + +static int +ar8216_atu_flush(struct ar8216_priv *priv) +{ + int ret; + + ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0); + if (!ret) + priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH); + + return ret; +} + +static u32 +ar8216_read_port_status(struct ar8216_priv *priv, int port) +{ + return priv->read(priv, AR8216_REG_PORT_STATUS(port)); +} + static void ar8216_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress, u32 members, u32 pvid) { u32 header; - if (priv->vlan && port == AR8216_PORT_CPU && priv->chip == AR8216) + if (priv->vlan && port == AR8216_PORT_CPU && priv->chip_type == AR8216) header = AR8216_PORT_CTRL_HEADER; else header = 0; @@ -549,6 +413,59 @@ ar8216_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress, (pvid << AR8216_PORT_VLAN_DEFAULT_ID_S)); } +static int +ar8216_hw_init(struct ar8216_priv *priv) +{ + return 0; +} + +static void +ar8216_init_globals(struct ar8216_priv *priv) +{ + /* standard atheros magic */ + priv->write(priv, 0x38, 0xc000050e); + + ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL, + AR8216_GCTRL_MTU, 1518 + 8 + 2); +} + +static void +ar8216_init_port(struct ar8216_priv *priv, int port) +{ + /* Enable port learning and tx */ + priv->write(priv, AR8216_REG_PORT_CTRL(port), + AR8216_PORT_CTRL_LEARN | + (4 << AR8216_PORT_CTRL_STATE_S)); + + priv->write(priv, AR8216_REG_PORT_VLAN(port), 0); + + if (port == AR8216_PORT_CPU) { + priv->write(priv, AR8216_REG_PORT_STATUS(port), + AR8216_PORT_STATUS_LINK_UP | + (ar8xxx_has_gige(priv) ? + AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) | + AR8216_PORT_STATUS_TXMAC | + AR8216_PORT_STATUS_RXMAC | + ((priv->chip_type == AR8316) ? AR8216_PORT_STATUS_RXFLOW : 0) | + ((priv->chip_type == AR8316) ? AR8216_PORT_STATUS_TXFLOW : 0) | + AR8216_PORT_STATUS_DUPLEX); + } else { + priv->write(priv, AR8216_REG_PORT_STATUS(port), + AR8216_PORT_STATUS_LINK_AUTO); + } +} + +static const struct ar8xxx_chip ar8216_chip = { + .hw_init = ar8216_hw_init, + .init_globals = ar8216_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 void ar8236_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress, u32 members, u32 pvid) @@ -573,97 +490,7 @@ ar8236_setup_port(struct ar8216_priv *priv, int port, u32 egress, u32 ingress, } static int -ar8216_hw_apply(struct switch_dev *dev) -{ - struct ar8216_priv *priv = to_ar8216(dev); - u8 portmask[AR8216_NUM_PORTS]; - int i, j; - - mutex_lock(&priv->reg_mutex); - /* flush all vlan translation unit entries */ - ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0); - - 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 < AR8216_NUM_PORTS; i++) { - u8 mask = (1 << i); - if (vp & mask) - portmask[i] |= vp & ~mask; - } - - ar8216_vtu_op(priv, - AR8216_VTU_OP_LOAD | - (priv->vlan_id[j] << AR8216_VTU_VID_S), - priv->vlan_table[j]); - } - } else { - /* vlan disabled: - * isolate all ports, but connect them to the cpu port */ - for (i = 0; i < AR8216_NUM_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 < AR8216_NUM_PORTS; i++) { - int egress, ingress; - int pvid; - - if (priv->vlan) - pvid = priv->vlan_id[priv->pvid[i]]; - else - pvid = i; - - if (priv->vlan) { - if (priv->vlan_tagged & (1 << i)) - egress = AR8216_OUT_ADD_VLAN; - else - egress = AR8216_OUT_STRIP_VLAN; - } else { - egress = AR8216_OUT_KEEP; - } - - if (priv->vlan) - ingress = AR8216_IN_SECURE; - else - ingress = AR8216_IN_PORT_ONLY; - - if (priv->chip == AR8236) - ar8236_setup_port(priv, i, egress, ingress, portmask[i], - pvid); - else - ar8216_setup_port(priv, i, egress, ingress, portmask[i], - pvid); - } - mutex_unlock(&priv->reg_mutex); - return 0; -} - -static int -ar8216_hw_init(struct ar8216_priv *priv) -{ - /* XXX: undocumented magic from atheros, required! */ - priv->write(priv, 0x38, 0xc000050e); - - ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL, - AR8216_GCTRL_MTU, 1518 + 8 + 2); - return 0; -} - -static int -ar8236_hw_init(struct ar8216_priv *priv) +ar8236_hw_init(struct ar8216_priv *priv) { int i; struct mii_bus *bus; @@ -681,14 +508,29 @@ ar8236_hw_init(struct ar8216_priv *priv) } 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); - - priv->initialized = true; - return 0; } +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) { @@ -722,9 +564,6 @@ ar8316_hw_init(struct ar8216_priv *priv) priv->write(priv, 0x8, newval); - /* standard atheros magic */ - priv->write(priv, 0x38, 0xc000050e); - /* Initialize the ports */ bus = priv->phy->bus; for (i = 0; i < 5; i++) { @@ -747,46 +586,533 @@ ar8316_hw_init(struct ar8216_priv *priv) 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); +} - /* enable cpu port to receive multicast and broadcast frames */ - priv->write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f); +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 int +ar8327_hw_init(struct ar8216_priv *priv) +{ + struct ar8327_platform_data *pdata; + 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); + + priv->write(priv, AR8327_REG_POWER_ON_STRIP, 0x40000000); + + /* fixup PHYs */ + for (i = 0; i < AR8327_NUM_PHYS; i++) { + /* For 100M waveform */ + ar8216_phy_dbg_write(priv, i, 0, 0x02ea); + + /* Turn on Gigabit clock */ + ar8216_phy_dbg_write(priv, i, 0x3d, 0x68a0); + } -out: - priv->initialized = true; return 0; } static void -ar8216_init_port(struct ar8216_priv *priv, int port) +ar8327_init_globals(struct ar8216_priv *priv) { - /* Enable port learning and tx */ - priv->write(priv, AR8216_REG_PORT_CTRL(port), - AR8216_PORT_CTRL_LEARN | - (4 << AR8216_PORT_CTRL_STATE_S)); + u32 t; - priv->write(priv, AR8216_REG_PORT_VLAN(port), 0); + /* 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_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) { - priv->write(priv, AR8216_REG_PORT_STATUS(port), - AR8216_PORT_STATUS_LINK_UP | - ((priv->chip == AR8316) ? - AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) | - AR8216_PORT_STATUS_TXMAC | - AR8216_PORT_STATUS_RXMAC | - ((priv->chip == AR8316) ? AR8216_PORT_STATUS_RXFLOW : 0) | - ((priv->chip == AR8316) ? AR8216_PORT_STATUS_TXFLOW : 0) | - AR8216_PORT_STATUS_DUPLEX); + ar8327_init_cpuport(priv); } else { - priv->write(priv, AR8216_REG_PORT_STATUS(port), - AR8216_PORT_STATUS_LINK_AUTO); + 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_reset_switch(struct switch_dev *dev) +ar8216_sw_reset_switch(struct switch_dev *dev) { struct ar8216_priv *priv = to_ar8216(dev); int i; @@ -799,15 +1125,41 @@ ar8216_reset_switch(struct switch_dev *dev) priv->vlan_id[i] = i; /* Configure all ports */ - for (i = 0; i < AR8216_NUM_PORTS; i++) - ar8216_init_port(priv, i); + 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_hw_apply(dev); + + 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_ops = { +static const struct switch_dev_ops ar8216_sw_ops = { .attr_global = { .attr = ar8216_globals, .n_attr = ARRAY_SIZE(ar8216_globals), @@ -820,15 +1172,74 @@ static const struct switch_dev_ops ar8216_ops = { .attr = ar8216_vlan, .n_attr = ARRAY_SIZE(ar8216_vlan), }, - .get_port_pvid = ar8216_get_pvid, - .set_port_pvid = ar8216_set_pvid, - .get_vlan_ports = ar8216_get_ports, - .set_vlan_ports = ar8216_set_ports, - .apply_config = ar8216_hw_apply, - .reset_switch = ar8216_reset_switch, - .get_port_link = ar8216_get_port_link, + .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; + + priv->chip_type = UNKNOWN; + + 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; + } + + switch (id) { + case 0x0101: + priv->chip_type = AR8216; + priv->chip = &ar8216_chip; + break; + case 0x0301: + priv->chip_type = AR8236; + priv->chip = &ar8236_chip; + break; + case 0x1000: + case 0x1001: + priv->chip_type = AR8316; + priv->chip = &ar8316_chip; + break; + case 0x1202: + priv->chip_type = 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", + (int)(id >> AR8216_CTRL_VERSION_S), + (int)(id & AR8216_CTRL_REVISION), + 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) { @@ -850,10 +1261,12 @@ ar8216_config_init(struct phy_device *pdev) goto err_free_priv; if (pdev->addr != 0) { - if (priv->chip == AR8316) { + if (ar8xxx_has_gige(priv)) { pdev->supported |= SUPPORTED_1000baseT_Full; pdev->advertising |= ADVERTISED_1000baseT_Full; + } + if (priv->chip_type == AR8316) { /* check if we're attaching to the switch twice */ pdev = pdev->bus->phy_map[0]; if (!pdev) { @@ -884,10 +1297,12 @@ ar8216_config_init(struct phy_device *pdev) } printk(KERN_INFO "%s: AR%d switch driver attached.\n", - pdev->attached_dev->name, priv->chip); + pdev->attached_dev->name, priv->chip_type); - pdev->supported = priv->chip == AR8316 ? - SUPPORTED_1000baseT_Full : SUPPORTED_100baseT_Full; + 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); @@ -898,10 +1313,10 @@ ar8216_config_init(struct phy_device *pdev) swdev = &priv->dev; swdev->cpu_port = AR8216_PORT_CPU; - swdev->ops = &ar8216_ops; + swdev->ops = &ar8216_sw_ops; swdev->ports = AR8216_NUM_PORTS; - if (priv->chip == AR8316) { + if (priv->chip_type == AR8316) { swdev->name = "Atheros AR8316"; swdev->vlans = AR8X16_MAX_VLANS; @@ -909,10 +1324,14 @@ ar8216_config_init(struct phy_device *pdev) /* port 5 connected to the other mac, therefore unusable */ swdev->ports = (AR8216_NUM_PORTS - 1); } - } else if (priv->chip == AR8236) { + } else if (priv->chip_type == AR8236) { swdev->name = "Atheros AR8236"; swdev->vlans = AR8216_NUM_VLANS; swdev->ports = AR8216_NUM_PORTS; + } else if (priv->chip_type == AR8327) { + swdev->name = "Atheros AR8327"; + swdev->vlans = AR8X16_MAX_VLANS; + swdev->ports = AR8327_NUM_PORTS; } else { swdev->name = "Atheros AR8216"; swdev->vlans = AR8216_NUM_VLANS; @@ -924,25 +1343,18 @@ ar8216_config_init(struct phy_device *pdev) priv->init = true; - ret = 0; - if (priv->chip == AR8216) - ret = ar8216_hw_init(priv); - else if (priv->chip == AR8236) - ret = ar8236_hw_init(priv); - else if (priv->chip == AR8316) - ret = ar8316_hw_init(priv); - + ret = priv->chip->hw_init(priv); if (ret) goto err_free_priv; - ret = ar8216_reset_switch(&priv->dev); + ret = ar8216_sw_reset_switch(&priv->dev); if (ret) goto err_free_priv; dev->phy_ptr = priv; /* VID fixup only needed on ar8216 */ - if (pdev->addr == 0 && priv->chip == AR8216) { + if (pdev->addr == 0 && priv->chip_type == AR8216) { pdev->pkt_align = 2; pdev->netif_receive_skb = ar8216_netif_receive_skb; pdev->netif_rx = ar8216_netif_rx; @@ -993,9 +1405,7 @@ ar8216_read_status(struct phy_device *phydev) /* flush the address translation unit */ mutex_lock(&priv->reg_mutex); - ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0); - if (!ret) - priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH); + ret = priv->chip->atu_flush(priv); mutex_unlock(&priv->reg_mutex); phydev->state = PHY_RUNNING;