diff options
| -rw-r--r-- | drivers/net/dsa/bcm_sf2.c | 73 | ||||
| -rw-r--r-- | drivers/net/dsa/bcm_sf2.h | 3 | ||||
| -rw-r--r-- | drivers/net/dsa/bcm_sf2_regs.h | 3 |
3 files changed, 79 insertions, 0 deletions
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index 634e44ee8d0d..b9625968daac 100644 --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -220,6 +220,19 @@ static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port) core_writel(priv, reg, CORE_STS_OVERRIDE_IMP); } +static void bcm_sf2_eee_enable_set(struct dsa_switch *ds, int port, bool enable) +{ + struct bcm_sf2_priv *priv = ds_to_priv(ds); + u32 reg; + + reg = core_readl(priv, CORE_EEE_EN_CTRL); + if (enable) + reg |= 1 << port; + else + reg &= ~(1 << port); + core_writel(priv, reg, CORE_EEE_EN_CTRL); +} + static int bcm_sf2_port_setup(struct dsa_switch *ds, int port, struct phy_device *phy) { @@ -247,6 +260,10 @@ static int bcm_sf2_port_setup(struct dsa_switch *ds, int port, bcm_sf2_imp_vlan_setup(ds, cpu_port); + /* If EEE was enabled, restore it */ + if (priv->port_sts[port].eee.eee_enabled) + bcm_sf2_eee_enable_set(ds, port, true); + return 0; } @@ -279,6 +296,60 @@ static void bcm_sf2_port_disable(struct dsa_switch *ds, int port, core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL); } +/* Returns 0 if EEE was not enabled, or 1 otherwise + */ +static int bcm_sf2_eee_init(struct dsa_switch *ds, int port, + struct phy_device *phy) +{ + struct bcm_sf2_priv *priv = ds_to_priv(ds); + struct ethtool_eee *p = &priv->port_sts[port].eee; + int ret; + + p->supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full); + + ret = phy_init_eee(phy, 0); + if (ret) + return 0; + + bcm_sf2_eee_enable_set(ds, port, true); + + return 1; +} + +static int bcm_sf2_sw_get_eee(struct dsa_switch *ds, int port, + struct ethtool_eee *e) +{ + struct bcm_sf2_priv *priv = ds_to_priv(ds); + struct ethtool_eee *p = &priv->port_sts[port].eee; + u32 reg; + + reg = core_readl(priv, CORE_EEE_LPI_INDICATE); + e->eee_enabled = p->eee_enabled; + e->eee_active = !!(reg & (1 << port)); + + return 0; +} + +static int bcm_sf2_sw_set_eee(struct dsa_switch *ds, int port, + struct phy_device *phydev, + struct ethtool_eee *e) +{ + struct bcm_sf2_priv *priv = ds_to_priv(ds); + struct ethtool_eee *p = &priv->port_sts[port].eee; + + p->eee_enabled = e->eee_enabled; + + if (!p->eee_enabled) { + bcm_sf2_eee_enable_set(ds, port, false); + } else { + p->eee_enabled = bcm_sf2_eee_init(ds, port, phydev); + if (!p->eee_enabled) + return -EOPNOTSUPP; + } + + return 0; +} + static irqreturn_t bcm_sf2_switch_0_isr(int irq, void *dev_id) { struct bcm_sf2_priv *priv = dev_id; @@ -792,6 +863,8 @@ static struct dsa_switch_driver bcm_sf2_switch_driver = { .set_wol = bcm_sf2_sw_set_wol, .port_enable = bcm_sf2_port_setup, .port_disable = bcm_sf2_port_disable, + .get_eee = bcm_sf2_sw_get_eee, + .set_eee = bcm_sf2_sw_set_eee, }; static int __init bcm_sf2_init(void) diff --git a/drivers/net/dsa/bcm_sf2.h b/drivers/net/dsa/bcm_sf2.h index 8fd6c1451a84..ee9f650d5026 100644 --- a/drivers/net/dsa/bcm_sf2.h +++ b/drivers/net/dsa/bcm_sf2.h @@ -18,6 +18,7 @@ #include <linux/spinlock.h> #include <linux/mutex.h> #include <linux/mii.h> +#include <linux/ethtool.h> #include <net/dsa.h> @@ -43,6 +44,8 @@ struct bcm_sf2_hw_params { struct bcm_sf2_port_status { unsigned int link; + + struct ethtool_eee eee; }; struct bcm_sf2_priv { diff --git a/drivers/net/dsa/bcm_sf2_regs.h b/drivers/net/dsa/bcm_sf2_regs.h index c65f138c777f..1bb49cb699ab 100644 --- a/drivers/net/dsa/bcm_sf2_regs.h +++ b/drivers/net/dsa/bcm_sf2_regs.h @@ -225,4 +225,7 @@ #define CORE_PORT_VLAN_CTL_PORT(x) (0xc400 + ((x) * 0x8)) #define PORT_VLAN_CTRL_MASK 0x1ff +#define CORE_EEE_EN_CTRL 0x24800 +#define CORE_EEE_LPI_INDICATE 0x24810 + #endif /* __BCM_SF2_REGS_H */ |