net, phy, cpsw: fix gigabit register access
accessing a lan9303 switch with the cpsw driver results in wrong
speed detection, as the switch sets the BMSR_ERCAP in BMSR
register, and follow read of the MII_STAT1000 register fails, as
the switch does not support it. Current code did not check,
if a phy_read() fails ... fix this.
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c
index f1e9f72..9bab71a 100644
--- a/drivers/net/cpsw.c
+++ b/drivers/net/cpsw.c
@@ -487,7 +487,7 @@
static int cpsw_mdio_read(struct mii_dev *bus, int phy_id,
int dev_addr, int phy_reg)
{
- unsigned short data;
+ int data;
u32 reg;
if (phy_reg & ~PHY_REG_MASK || phy_id & ~PHY_ID_MASK)