linux-kernel - [PATCH v2 1/4] net: stmmac: dwmac-sun8i: support RGMII modes with PHY internal delay

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Message-Id: <20170822040400.12166-2-icenowy@aosc.io>
Date:   Tue, 22 Aug 2017 12:03:57 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Corentin Labbe <clabbe.montjoie@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-sunxi@...glegroups.com, Icenowy Zheng <icenowy@...c.io>
Subject: [PATCH v2 1/4] net: stmmac: dwmac-sun8i: support RGMII modes with PHY internal delay

Some boards uses a PHY with internal delay with an Allwinner SoC.

Support these PHY modes in the driver.

As the driver has no configuration registers for these modes, just treat
them as ordinary RGMII.

Signed-off-by: Icenowy Zheng <icenowy@...c.io>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index fffd6d5fc907..2af680cac497 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -723,6 +723,9 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
 		/* default */
 		break;
 	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
 		reg |= SYSCON_EPIT | SYSCON_ETCS_INT_GMII;
 		break;
 	case PHY_INTERFACE_MODE_RMII:
-- 
2.13.5