Commit 84c8df16 authored by Jose Abreu's avatar Jose Abreu Committed by David S. Miller

net: stmmac: dwxgmac2: Add MAC loopback support

In preparation for the addition of stmmac selftests we implement the MAC
loopback callback in dwxgmac2 core.
Signed-off-by: default avatarJose 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: default avatarDavid S. Miller <davem@davemloft.net>
parent 4ce84f4d
...@@ -29,6 +29,7 @@ ...@@ -29,6 +29,7 @@
#define XGMAC_CONFIG_GPSL GENMASK(29, 16) #define XGMAC_CONFIG_GPSL GENMASK(29, 16)
#define XGMAC_CONFIG_GPSL_SHIFT 16 #define XGMAC_CONFIG_GPSL_SHIFT 16
#define XGMAC_CONFIG_S2KP BIT(11) #define XGMAC_CONFIG_S2KP BIT(11)
#define XGMAC_CONFIG_LM BIT(10)
#define XGMAC_CONFIG_IPC BIT(9) #define XGMAC_CONFIG_IPC BIT(9)
#define XGMAC_CONFIG_JE BIT(8) #define XGMAC_CONFIG_JE BIT(8)
#define XGMAC_CONFIG_WD BIT(7) #define XGMAC_CONFIG_WD BIT(7)
......
...@@ -321,6 +321,18 @@ static void dwxgmac2_set_filter(struct mac_device_info *hw, ...@@ -321,6 +321,18 @@ static void dwxgmac2_set_filter(struct mac_device_info *hw,
writel(value, ioaddr + XGMAC_PACKET_FILTER); writel(value, ioaddr + XGMAC_PACKET_FILTER);
} }
static void dwxgmac2_set_mac_loopback(void __iomem *ioaddr, bool enable)
{
u32 value = readl(ioaddr + XGMAC_RX_CONFIG);
if (enable)
value |= XGMAC_CONFIG_LM;
else
value &= ~XGMAC_CONFIG_LM;
writel(value, ioaddr + XGMAC_RX_CONFIG);
}
const struct stmmac_ops dwxgmac210_ops = { const struct stmmac_ops dwxgmac210_ops = {
.core_init = dwxgmac2_core_init, .core_init = dwxgmac2_core_init,
.set_mac = dwxgmac2_set_mac, .set_mac = dwxgmac2_set_mac,
...@@ -350,6 +362,7 @@ const struct stmmac_ops dwxgmac210_ops = { ...@@ -350,6 +362,7 @@ const struct stmmac_ops dwxgmac210_ops = {
.pcs_get_adv_lp = NULL, .pcs_get_adv_lp = NULL,
.debug = NULL, .debug = NULL,
.set_filter = dwxgmac2_set_filter, .set_filter = dwxgmac2_set_filter,
.set_mac_loopback = dwxgmac2_set_mac_loopback,
}; };
int dwxgmac2_setup(struct stmmac_priv *priv) int dwxgmac2_setup(struct stmmac_priv *priv)
......
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