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net/hns:bugfix of ethtool -t phy self_test 

This patch fixes the phy loopback self_test failed issue. when
Marvell Phy Module is loaded, it will powerdown fiber when doing
phy loopback self test, which cause phy loopback self_test fail.

Signed-off-by: Lin Yun Sheng <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Lin Yun Sheng 2017-06-16 17:24:51 +08:00 committed by David S. Miller
parent 9745e362ad
commit 7fe5b91431
1 changed files with 14 additions and 2 deletions
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16
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
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@ -288,9 +288,15 @@ static int hns_nic_config_phy_loopback(struct phy_device *phy_dev, u8 en)
/* Force 1000M Link, Default is 0x0200 */
phy_write(phy_dev, 7, 0x20C);
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0);
/* Enable PHY loop-back */
/* Powerup Fiber */
phy_write(phy_dev, HNS_PHY_PAGE_REG, 1);
val = phy_read(phy_dev, COPPER_CONTROL_REG);
val &= ~PHY_POWER_DOWN;
phy_write(phy_dev, COPPER_CONTROL_REG, val);
/* Enable Phy Loopback */
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0);
val = phy_read(phy_dev, COPPER_CONTROL_REG);
val |= PHY_LOOP_BACK;
val &= ~PHY_POWER_DOWN;
@ -299,6 +305,12 @@ static int hns_nic_config_phy_loopback(struct phy_device *phy_dev, u8 en)
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0xFA);
phy_write(phy_dev, 1, 0x400);
phy_write(phy_dev, 7, 0x200);
phy_write(phy_dev, HNS_PHY_PAGE_REG, 1);
val = phy_read(phy_dev, COPPER_CONTROL_REG);
val |= PHY_POWER_DOWN;
phy_write(phy_dev, COPPER_CONTROL_REG, val);
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0);
phy_write(phy_dev, 9, 0xF00);