diff options
| author |   Jose Abreu <Jose.Abreu@synopsys.com> | 2019-05-24 10:20:11 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-05-24 13:45:56 -0700 |
| commit | cbc195152149e3ffa3420182023570ddd0c08670 (patch) | |
| tree | 05d01739d0c1a1e036c6d92af91fa19eb24dd100 /drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | |
| parent | net: stmmac: dwmac100: Add MAC loopback support (diff) | |
| download | linux-dev-cbc195152149e3ffa3420182023570ddd0c08670.tar.xz linux-dev-cbc195152149e3ffa3420182023570ddd0c08670.zip | |
net: stmmac: dwmac1000: Add MAC loopback support
In preparation for the addition of stmmac selftests we implement the MAC
loopback callback in dwmac1000 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/dwmac1000_core.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index 0877bde6e860..398303c783f4 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -499,6 +499,18 @@ static void dwmac1000_debug(void __iomem *ioaddr, struct stmmac_extra_stats *x, x->mac_gmii_rx_proto_engine++; } +static void dwmac1000_set_mac_loopback(void __iomem *ioaddr, bool enable) +{ + u32 value = readl(ioaddr + GMAC_CONTROL); + + if (enable) + value |= GMAC_CONTROL_LM; + else + value &= ~GMAC_CONTROL_LM; + + writel(value, ioaddr + GMAC_CONTROL); +} + const struct stmmac_ops dwmac1000_ops = { .core_init = dwmac1000_core_init, .set_mac = stmmac_set_mac, @@ -518,6 +530,7 @@ const struct stmmac_ops dwmac1000_ops = { .pcs_ctrl_ane = dwmac1000_ctrl_ane, .pcs_rane = dwmac1000_rane, .pcs_get_adv_lp = dwmac1000_get_adv_lp, + .set_mac_loopback = dwmac1000_set_mac_loopback, }; int dwmac1000_setup(struct stmmac_priv *priv) |