ramips: reset mt7620 frame engine via reset controller

Use reset controller to reset mt7620 frame engine instead of directly
writing system control registers.

Tested on HiWiFi HC5861.

Signed-off-by: Shiji Yang <[email protected]>

target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.c

@@ -141,7 +141,7 @@ void fe_reset(u32 reset_bits)
 	usleep_range(10, 20);
 }
 
-void fe_reset_fe(struct fe_priv *priv)
+static void fe_reset_fe(struct fe_priv *priv)
 {
 	if (!priv->resets)
 		return;
@@ -1366,10 +1366,7 @@ static int __init fe_init(struct net_device *dev)
 	struct device_node *port;
 	int err;
 
-	if (priv->soc->reset_fe)
-		priv->soc->reset_fe(priv);
-	else
-		fe_reset_fe(priv);
+	fe_reset_fe(priv);
 
 	if (priv->soc->switch_init) {
 		err = priv->soc->switch_init(priv);

target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_eth_soc.h

@@ -157,8 +157,6 @@ enum fe_work_flag {
 #define MT7620A_FE_GDMA1_MAC_ADRL	(MT7620A_GDMA_OFFSET + 0x0C)
 #define MT7620A_FE_GDMA1_MAC_ADRH	(MT7620A_GDMA_OFFSET + 0x10)
 
-#define MT7620A_RESET_FE	BIT(21)
-#define MT7620A_RESET_ESW	BIT(23)
 #define MT7620A_RESET_EPHY	BIT(24)
 
 #define RT5350_TX_BASE_PTR0	(RT5350_PDMA_OFFSET + 0x00)
@@ -382,7 +380,6 @@ struct fe_soc_data {
 	const u16 *reg_table;
 
 	void (*init_data)(struct fe_soc_data *data, struct net_device *netdev);
-	void (*reset_fe)(struct fe_priv *priv);
 	void (*set_mac)(struct fe_priv *priv, unsigned char *mac);
 	int (*fwd_config)(struct fe_priv *priv);
 	void (*tx_dma)(struct fe_tx_dma *txd);
@@ -517,7 +514,6 @@ void fe_reg_w32(u32 val, enum fe_reg reg);
 u32 fe_reg_r32(enum fe_reg reg);
 
 void fe_reset(u32 reset_bits);
-void fe_reset_fe(struct fe_priv *priv);
 
 static inline void *priv_netdev(struct fe_priv *priv)
 {

target/linux/ramips/files/drivers/net/ethernet/ralink/soc_mt7620.c

@@ -286,11 +286,6 @@ static void mt7620_port_init(struct fe_priv *priv, struct device_node *np)
 	}
 }
 
-static void mt7620_fe_reset(struct fe_priv *priv)
-{
-	fe_reset(MT7620A_RESET_FE | MT7620A_RESET_ESW);
-}
-
 static void mt7620_rxcsum_config(bool enable)
 {
 	if (enable)
@@ -348,7 +343,6 @@ static void mt7620_init_data(struct fe_soc_data *data,
 
 static struct fe_soc_data mt7620_data = {
 	.init_data = mt7620_init_data,
-	.reset_fe = mt7620_fe_reset,
 	.set_mac = mt7620_set_mac,
 	.fwd_config = mt7620_fwd_config,
 	.tx_dma = mt7620_tx_dma,