diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c index 8842f6627cb8..ebcad8dd99db 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c @@ -150,6 +150,18 @@ static void dwmac100_pmt(struct mac_device_info *hw, unsigned long mode) return; } +static void dwmac100_set_mac_loopback(void __iomem *ioaddr, bool enable) +{ + u32 value = readl(ioaddr + MAC_CONTROL); + + if (enable) + value |= MAC_CONTROL_OM; + else + value &= ~MAC_CONTROL_OM; + + writel(value, ioaddr + MAC_CONTROL); +} + const struct stmmac_ops dwmac100_ops = { .core_init = dwmac100_core_init, .set_mac = stmmac_set_mac, @@ -161,6 +173,7 @@ const struct stmmac_ops dwmac100_ops = { .pmt = dwmac100_pmt, .set_umac_addr = dwmac100_set_umac_addr, .get_umac_addr = dwmac100_get_umac_addr, + .set_mac_loopback = dwmac100_set_mac_loopback, }; int dwmac100_setup(struct stmmac_priv *priv) |