hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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>
This commit is contained in:
Jose Abreu 2019-05-24 10:20:11 +02:00 committed by David S. Miller
parent 0a05a7a315
commit cbc1951521
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
View File

@ -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)