diff options
| author | Jose Abreu <Jose.Abreu@synopsys.com> | 2019-05-24 10:20:10 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-24 13:45:56 -0700 |
| commit | 0a05a7a315b13d4e6e7e12c1763200eeec5dd7ac (patch) | |
| tree | 7e5badd17666c4ffb178e5e20b49c3a684eecda8 /drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c | |
| parent | 48435bc3b330b84eed095174d214c48df6124ac8 (diff) | |
net: stmmac: dwmac100: Add MAC loopback support
In preparation for the addition of stmmac selftests we implement the MAC
loopback callback in dwmac100 core.
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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 b735143987e1..d621b5189c41 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c @@ -160,6 +160,18 @@ 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, @@ -171,6 +183,7 @@ 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) |