diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index caaad7b14621..eb210ca2497b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -763,6 +763,23 @@ static void stmmac_mmc_setup(struct stmmac_priv *priv) memset(&priv->mmc, 0, sizeof(struct stmmac_counters)); } +static u32 stmmac_get_synopsys_id(struct stmmac_priv *priv) +{ + u32 hwid = priv->hw->synopsys_uid; + + /* Only check valid Synopsys Id because old MAC chips + * have no HW registers where get the ID */ + if (likely(hwid)) { + u32 uid = ((hwid & 0x0000ff00) >> 8); + u32 synid = (hwid & 0x000000ff); + + pr_info("STMMAC - user ID: 0x%x, Synopsys ID: 0x%x\n", + uid, synid); + + return synid; + } + return 0; +} /** * stmmac_open - open entry point of the driver * @dev : pointer to the device structure. @@ -835,7 +852,8 @@ static int stmmac_open(struct net_device *dev) /* Initialize the MAC Core */ priv->hw->mac->core_init(priv->ioaddr); - priv->rx_coe = priv->hw->mac->rx_coe(priv->ioaddr); + stmmac_get_synopsys_id(priv); + if (priv->rx_coe) pr_info("stmmac: Rx Checksum Offload Engine supported\n"); if (priv->plat->tx_coe) |