[PATCH net-next v2 1/3] net: ethernet: mediatek: add extension of phy-mode for TRGMII

[<sean.wang@mediatek.com>]

From: Sean Wang <sean.wang@mediatek.com>

adds PHY-mode "trgmii" as an extension for the operation
mode of the PHY interface for PHY_INTERFACE_MODE_TRGMII.
and adds a variable trgmii inside mtk_mac as the indication
to make the difference between the MAC connected to internal
switch or connected to external PHY by the given configuration
on the board and then to perform the corresponding setup on
TRGMII hardware module.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 ++
 drivers/net/ethernet/mediatek/mtk_eth_soc.h | 3 +++
 include/linux/phy.h                         | 3 +++
 3 files changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index ca6b501..827f4bd 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -244,6 +244,8 @@ static int mtk_phy_connect(struct mtk_mac *mac)
 		return -ENODEV;
 
 	switch (of_get_phy_mode(np)) {
+	case PHY_INTERFACE_MODE_TRGMII:
+		mac->trgmii = true;
 	case PHY_INTERFACE_MODE_RGMII_TXID:
 	case PHY_INTERFACE_MODE_RGMII_RXID:
 	case PHY_INTERFACE_MODE_RGMII_ID:
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index 7c5e534..e3b9525 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -529,6 +529,8 @@ struct mtk_eth {
  * @hw:			Backpointer to our main datastruture
  * @hw_stats:		Packet statistics counter
  * @phy_dev:		The attached PHY if available
+ * @trgmii		Indicate if the MAC uses TRGMII connected to internal
+			switch
  */
 struct mtk_mac {
 	int				id;
@@ -539,6 +541,7 @@ struct mtk_mac {
 	struct phy_device		*phy_dev;
 	__be32				hwlro_ip[MTK_MAX_LRO_IP_CNT];
 	int				hwlro_ip_cnt;
+	bool				trgmii;
 };
 
 /* the struct describing the SoC. these are declared in the soc_xyz.c files */
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 2d24b28..e25f183 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -80,6 +80,7 @@ typedef enum {
 	PHY_INTERFACE_MODE_XGMII,
 	PHY_INTERFACE_MODE_MOCA,
 	PHY_INTERFACE_MODE_QSGMII,
+	PHY_INTERFACE_MODE_TRGMII,
 	PHY_INTERFACE_MODE_MAX,
 } phy_interface_t;
 
@@ -123,6 +124,8 @@ static inline const char *phy_modes(phy_interface_t interface)
 		return "moca";
 	case PHY_INTERFACE_MODE_QSGMII:
 		return "qsgmii";
+	case PHY_INTERFACE_MODE_TRGMII:
+		return "trgmii";
 	default:
 		return "unknown";
 	}
-- 
1.9.1