Hi,
in commit 1bf40ada6290 ("amd-xgbe: Add support for clause 37
auto-negotiation"), we can find:
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index 695e982..8bcf4ef 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
[...]
#define XGBE_AN_CL37_PCS_MODE_MASK 0x06
#define XGBE_AN_CL37_PCS_MODE_BASEX 0x00
#define XGBE_AN_CL37_PCS_MODE_SGMII 0x04
#define XGBE_AN_CL37_TX_CONFIG_MASK 0x08
[...]
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index d5bfbe4..723eb90 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
[...]
/* Set up the Control register */
reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_CTRL);
reg &= XGBE_AN_CL37_TX_CONFIG_MASK;
reg &= XGBE_AN_CL37_PCS_MODE_MASK;
[...]
the "reg &=" statements look spurious. The 2 constants being 0x06 and
0x08, the current code is equivalent to "reg = 0"
It is likely that "reg |=" (or "reg &= ~") was expected here.
Best regards,
CJ
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