diff options
| author | Yonglong Liu <liuyonglong@huawei.com> | 2019-01-26 17:18:27 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-13 14:04:56 -0700 |
| commit | 91500a8493d6d53657a679ca61f5a165487b8965 (patch) | |
| tree | 21ddba3df01560c925615fa2648e0006d8521cd1 /drivers/net/ethernet/hisilicon/hns_mdio.c | |
| parent | 1e8e523420602c2aa0685062a8b361c8500f3bb0 (diff) | |
net: hns: Fix wrong read accesses via Clause 45 MDIO protocol
[ Upstream commit cec8abba13e6a26729dfed41019720068eeeff2b ]
When reading phy registers via Clause 45 MDIO protocol, after write
address operation, the driver use another write address operation, so
can not read the right value of any phy registers. This patch fixes it.
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns_mdio.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns_mdio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns_mdio.c b/drivers/net/ethernet/hisilicon/hns_mdio.c index 501eb2090ca6..de23a0ead5d7 100644 --- a/drivers/net/ethernet/hisilicon/hns_mdio.c +++ b/drivers/net/ethernet/hisilicon/hns_mdio.c @@ -329,7 +329,7 @@ static int hns_mdio_read(struct mii_bus *bus, int phy_id, int regnum) } hns_mdio_cmd_write(mdio_dev, is_c45, - MDIO_C45_WRITE_ADDR, phy_id, devad); + MDIO_C45_READ, phy_id, devad); } /* Step 5: waitting for MDIO_COMMAND_REG 's mdio_start==0,*/ |