diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
commit | d635711daa98be86d4c7fd01499c34f566b54ccb (patch) | |
tree | aa5cc3760a27c3d57146498cb82fa549547de06c /drivers/net/phy/at803x.c | |
parent | c91265cd0efb83778f015b4d4b1129bd2cfd075e (diff) |
Linux-libre 4.6.2-gnu
Diffstat (limited to 'drivers/net/phy/at803x.c')
-rw-r--r-- | drivers/net/phy/at803x.c | 72 |
1 files changed, 49 insertions, 23 deletions
diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c index 2174ec937..f279a897a 100644 --- a/drivers/net/phy/at803x.c +++ b/drivers/net/phy/at803x.c @@ -52,6 +52,9 @@ #define AT803X_DEBUG_REG_5 0x05 #define AT803X_DEBUG_TX_CLK_DLY_EN BIT(8) +#define AT803X_REG_CHIP_CONFIG 0x1f +#define AT803X_BT_BX_REG_SEL 0x8000 + #define ATH8030_PHY_ID 0x004dd076 #define ATH8031_PHY_ID 0x004dd074 #define ATH8035_PHY_ID 0x004dd072 @@ -206,6 +209,7 @@ static int at803x_suspend(struct phy_device *phydev) { int value; int wol_enabled; + int ccr; mutex_lock(&phydev->lock); @@ -221,6 +225,16 @@ static int at803x_suspend(struct phy_device *phydev) phy_write(phydev, MII_BMCR, value); + if (phydev->interface != PHY_INTERFACE_MODE_SGMII) + goto done; + + /* also power-down SGMII interface */ + ccr = phy_read(phydev, AT803X_REG_CHIP_CONFIG); + phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr & ~AT803X_BT_BX_REG_SEL); + phy_write(phydev, MII_BMCR, phy_read(phydev, MII_BMCR) | BMCR_PDOWN); + phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL); + +done: mutex_unlock(&phydev->lock); return 0; @@ -229,6 +243,7 @@ static int at803x_suspend(struct phy_device *phydev) static int at803x_resume(struct phy_device *phydev) { int value; + int ccr; mutex_lock(&phydev->lock); @@ -236,6 +251,17 @@ static int at803x_resume(struct phy_device *phydev) value &= ~(BMCR_PDOWN | BMCR_ISOLATE); phy_write(phydev, MII_BMCR, value); + if (phydev->interface != PHY_INTERFACE_MODE_SGMII) + goto done; + + /* also power-up SGMII interface */ + ccr = phy_read(phydev, AT803X_REG_CHIP_CONFIG); + phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr & ~AT803X_BT_BX_REG_SEL); + value = phy_read(phydev, MII_BMCR) & ~(BMCR_PDOWN | BMCR_ISOLATE); + phy_write(phydev, MII_BMCR, value); + phy_write(phydev, AT803X_REG_CHIP_CONFIG, ccr | AT803X_BT_BX_REG_SEL); + +done: mutex_unlock(&phydev->lock); return 0; @@ -251,12 +277,16 @@ static int at803x_probe(struct phy_device *phydev) if (!priv) return -ENOMEM; - gpiod_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); + if (phydev->drv->phy_id != ATH8030_PHY_ID) + goto does_not_require_reset_workaround; + + gpiod_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(gpiod_reset)) return PTR_ERR(gpiod_reset); priv->gpiod_reset = gpiod_reset; +does_not_require_reset_workaround: phydev->priv = priv; return 0; @@ -329,27 +359,25 @@ static void at803x_link_change_notify(struct phy_device *phydev) * in the FIFO. In such cases, the FIFO enters an error mode it * cannot recover from by software. */ - if (phydev->drv->phy_id == ATH8030_PHY_ID) { - if (phydev->state == PHY_NOLINK) { - if (priv->gpiod_reset && !priv->phy_reset) { - struct at803x_context context; - - at803x_context_save(phydev, &context); - - gpiod_set_value(priv->gpiod_reset, 0); - msleep(1); - gpiod_set_value(priv->gpiod_reset, 1); - msleep(1); - - at803x_context_restore(phydev, &context); - - phydev_dbg(phydev, "%s(): phy was reset\n", - __func__); - priv->phy_reset = true; - } - } else { - priv->phy_reset = false; + if (phydev->state == PHY_NOLINK) { + if (priv->gpiod_reset && !priv->phy_reset) { + struct at803x_context context; + + at803x_context_save(phydev, &context); + + gpiod_set_value(priv->gpiod_reset, 1); + msleep(1); + gpiod_set_value(priv->gpiod_reset, 0); + msleep(1); + + at803x_context_restore(phydev, &context); + + phydev_dbg(phydev, "%s(): phy was reset\n", + __func__); + priv->phy_reset = true; } + } else { + priv->phy_reset = false; } } @@ -361,7 +389,6 @@ static struct phy_driver at803x_driver[] = { .phy_id_mask = 0xffffffef, .probe = at803x_probe, .config_init = at803x_config_init, - .link_change_notify = at803x_link_change_notify, .set_wol = at803x_set_wol, .get_wol = at803x_get_wol, .suspend = at803x_suspend, @@ -397,7 +424,6 @@ static struct phy_driver at803x_driver[] = { .phy_id_mask = 0xffffffef, .probe = at803x_probe, .config_init = at803x_config_init, - .link_change_notify = at803x_link_change_notify, .set_wol = at803x_set_wol, .get_wol = at803x_get_wol, .suspend = at803x_suspend, |