1 From 25eaa5d6483a5899e6bf48b47f762f05c186b4b6 Mon Sep 17 00:00:00 2001
2 From: John Crispin <john@phrozen.org>
3 Date: Fri, 22 Apr 2016 11:08:43 +0200
4 Subject: [PATCH 080/102] net-next: mediatek: properly handle RGMII modes
6 If an external Gigabit PHY is connected to either of the MACs we need to
7 be able to tell the PHY to use a delay. Not doing so will result in heavy
8 packet loss and/or data corruption when using PHYs such as the IC+ IP1001.
9 We tell the PHY which MII delay mode to use via the devictree.
11 The ethernet driver needs to be adapted to handle all 3 rgmii-*id modes
12 in the same way as normal rgmii when setting up the MAC.
14 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
15 Signed-off-by: John Crispin <john@phrozen.org>
17 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 3 +++
18 1 file changed, 3 insertions(+)
20 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
21 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
22 @@ -236,6 +236,9 @@ static int mtk_phy_connect(struct mtk_ma
25 switch (of_get_phy_mode(np)) {
26 + case PHY_INTERFACE_MODE_RGMII_TXID:
27 + case PHY_INTERFACE_MODE_RGMII_RXID:
28 + case PHY_INTERFACE_MODE_RGMII_ID:
29 case PHY_INTERFACE_MODE_RGMII: