linux-kernel - [PATCH 4.14 51/62] net: stmmac: dwmac-sun8i: Allow all RGMII modes

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Date:   Sat, 11 Jan 2020 10:50:33 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chen-Yu Tsai <wens@...e.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.14 51/62] net: stmmac: dwmac-sun8i: Allow all RGMII modes

From: Chen-Yu Tsai <wens@...e.org>

[ Upstream commit f1239d8aa84dad8fe4b6cc1356f40fc8e842db47 ]

Allow all the RGMII modes to be used. This would allow us to represent
the hardware better in the device tree with RGMII_ID where in most
cases the PHY's internal delay for both RX and TX are used.

Fixes: 9f93ac8d4085 ("net-next: stmmac: Add dwmac-sun8i")
Signed-off-by: Chen-Yu Tsai <wens@...e.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -724,6 +724,9 @@ static int sun8i_dwmac_set_syscon(struct
 		/* 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: