diff options
| author | Jose Abreu <Jose.Abreu@synopsys.com> | 2019-05-24 10:20:13 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-24 13:45:56 -0700 |
| commit | 84c8df164906d130e9c00a68e33d811cf37b8ba1 (patch) | |
| tree | b3fa7ba140b78621e3fa5fd477b61be0356051c8 /drivers | |
| parent | 4ce84f4da7c4722bccc9c772d7ecc21b2f1c75e5 (diff) | |
| download | lwn-84c8df164906d130e9c00a68e33d811cf37b8ba1.tar.gz lwn-84c8df164906d130e9c00a68e33d811cf37b8ba1.zip | |
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: 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')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 13 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h index 085b700a4994..f629ccc8932a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h @@ -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) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c index 64b8cb88ea45..c27b3ca052ea 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c @@ -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) |