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

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

drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h

+1 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#define XGMAC_CONFIG_GPSL		GENMASK(29, 16)

#define XGMAC_CONFIG_GPSL_SHIFT		16

#define XGMAC_CONFIG_S2KP		BIT(11)

#define XGMAC_CONFIG_LM			BIT(10)

#define XGMAC_CONFIG_IPC		BIT(9)

#define XGMAC_CONFIG_JE			BIT(8)

#define XGMAC_CONFIG_WD			BIT(7)

drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c

+13 −0
Original line number Diff line number Diff line
@@ -321,6 +321,18 @@ static void dwxgmac2_set_filter(struct mac_device_info *hw, 
	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 = {

	.core_init = dwxgmac2_core_init,

	.set_mac = dwxgmac2_set_mac,
@@ -350,6 +362,7 @@ const struct stmmac_ops dwxgmac210_ops = { 
	.pcs_get_adv_lp = NULL,

	.debug = NULL,

	.set_filter = dwxgmac2_set_filter,

	.set_mac_loopback = dwxgmac2_set_mac_loopback,

};



int dwxgmac2_setup(struct stmmac_priv *priv)

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