diff options
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-dev.c')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c index e5391a2eca51..ffc7d83522c7 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c @@ -3578,3 +3578,20 @@ void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if) DBGPR("<--xgbe_init_function_ptrs\n"); } + +int xgbe_enable_mac_loopback(struct xgbe_prv_data *pdata) +{ + /* Enable MAC loopback mode */ + XGMAC_IOWRITE_BITS(pdata, MAC_RCR, LM, 1); + + /* Wait for loopback to stabilize */ + usleep_range(10, 15); + + return 0; +} + +void xgbe_disable_mac_loopback(struct xgbe_prv_data *pdata) +{ + /* Disable MAC loopback mode */ + XGMAC_IOWRITE_BITS(pdata, MAC_RCR, LM, 0); +} |