Merge branch 'net-ethernet-mtk_eth_soc-add-basic-support-for-mt7988-soc'

Daniel Golle says:

====================
net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC

The MediaTek MT7988 SoC introduces a new version (3) of the NETSYS
block and comes with three instead of two MACs.

The first MAC can be internally connected to a built-in Gigabit
Ethernet switch with four 1000M/100M/10M twisted pair user ports.

The second MAC can be internally connected to a built-in 2500Base-T
Ethernet PHY.

There are two SerDes units which can be operated in USXGMII, 10GBase-(K)R,
5GBase-R, 2500Base-X, 1000Base-X or SGMII interface mode.

This series adds initial support for NETSYS v3 and the first MAC of the
MT7988 SoC connecting the built-in DSA switch.

The switch is supported since commit 110c18b ("net: dsa: mt7530:
introduce driver for MT7988 built-in switch").

Basic support for the 1000M/100M/10M built-in PHYs connected to the
switch ports is present since commit ("98c485eaf509b net: phy: add
driver for MediaTek SoC built-in GE PHYs").
====================

Link: https://lore.kernel.org/r/cover.1690246066.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/devicetree/bindings/net/mediatek,net.yaml

@@ -19,10 +19,12 @@ properties:
     enum:
       - mediatek,mt2701-eth
       - mediatek,mt7623-eth
+      - mediatek,mt7621-eth
       - mediatek,mt7622-eth
       - mediatek,mt7629-eth
       - mediatek,mt7981-eth
       - mediatek,mt7986-eth
+      - mediatek,mt7988-eth
       - ralink,rt5350-eth
 
   reg:
@@ -32,7 +34,7 @@ properties:
   clock-names: true
 
   interrupts:
-    minItems: 3
+    minItems: 1
     maxItems: 4
 
   power-domains:
@@ -60,6 +62,12 @@ properties:
       Phandle to the mediatek hifsys controller used to provide various clocks
       and reset to the system.
 
+  mediatek,infracfg:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the syscon node that handles the path from GMAC to
+      PHY variants.
+
   mediatek,sgmiisys:
     $ref: /schemas/types.yaml#/definitions/phandle-array
     minItems: 1
@@ -121,6 +129,8 @@ allOf:
             - const: gp1
             - const: gp2
 
+        mediatek,infracfg: false
+
         mediatek,pctl:
           $ref: /schemas/types.yaml#/definitions/phandle
           description:
@@ -131,6 +141,32 @@ allOf:
 
         mediatek,wed-pcie: false
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt7621-eth
+    then:
+      properties:
+        interrupts:
+          maxItems: 1
+
+        clocks:
+          minItems: 2
+          maxItems: 2
+
+        clock-names:
+          items:
+            - const: ethif
+            - const: fe
+
+        mediatek,infracfg: false
+
+        mediatek,wed: false
+
+        mediatek,wed-pcie: false
+
   - if:
       properties:
         compatible:
@@ -159,6 +195,8 @@ allOf:
             - const: sgmii_ck
             - const: eth2pll
 
+        mediatek,infracfg: false
+
         mediatek,sgmiisys:
           minItems: 1
           maxItems: 1
@@ -204,12 +242,6 @@ allOf:
             - const: sgmii_ck
             - const: eth2pll
 
-        mediatek,infracfg:
-          $ref: /schemas/types.yaml#/definitions/phandle
-          description:
-            Phandle to the syscon node that handles the path from GMAC to
-            PHY variants.
-
         mediatek,sgmiisys:
           minItems: 2
           maxItems: 2
@@ -250,6 +282,8 @@ allOf:
             - const: netsys0
             - const: netsys1
 
+        mediatek,infracfg: false
+
         mediatek,sgmiisys:
           minItems: 2
           maxItems: 2
@@ -286,6 +320,67 @@ allOf:
             - const: netsys0
             - const: netsys1
 
+        mediatek,infracfg: false
+
+        mediatek,sgmiisys:
+          minItems: 2
+          maxItems: 2
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt7988-eth
+    then:
+      properties:
+        interrupts:
+          minItems: 4
+
+        clocks:
+          minItems: 34
+          maxItems: 34
+
+        clock-names:
+          items:
+            - const: crypto
+            - const: fe
+            - const: gp2
+            - const: gp1
+            - const: gp3
+            - const: ethwarp_wocpu2
+            - const: ethwarp_wocpu1
+            - const: ethwarp_wocpu0
+            - const: esw
+            - const: netsys0
+            - const: netsys1
+            - const: sgmii_tx250m
+            - const: sgmii_rx250m
+            - const: sgmii2_tx250m
+            - const: sgmii2_rx250m
+            - const: top_usxgmii0_sel
+            - const: top_usxgmii1_sel
+            - const: top_sgm0_sel
+            - const: top_sgm1_sel
+            - const: top_xfi_phy0_xtal_sel
+            - const: top_xfi_phy1_xtal_sel
+            - const: top_eth_gmii_sel
+            - const: top_eth_refck_50m_sel
+            - const: top_eth_sys_200m_sel
+            - const: top_eth_sys_sel
+            - const: top_eth_xgmii_sel
+            - const: top_eth_mii_sel
+            - const: top_netsys_sel
+            - const: top_netsys_500m_sel
+            - const: top_netsys_pao_2x_sel
+            - const: top_netsys_sync_250m_sel
+            - const: top_netsys_ppefb_250m_sel
+            - const: top_netsys_warp_sel
+            - const: wocpu1
+            - const: wocpu0
+            - const: xgp1
+            - const: xgp2
+            - const: xgp3
+
         mediatek,sgmiisys:
           minItems: 2
           maxItems: 2

drivers/net/ethernet/mediatek/mtk_eth_path.c

@@ -15,10 +15,10 @@
 struct mtk_eth_muxc {
 	const char	*name;
 	int		cap_bit;
-	int		(*set_path)(struct mtk_eth *eth, int path);
+	int		(*set_path)(struct mtk_eth *eth, u64 path);
 };
 
-static const char *mtk_eth_path_name(int path)
+static const char *mtk_eth_path_name(u64 path)
 {
 	switch (path) {
 	case MTK_ETH_PATH_GMAC1_RGMII:
@@ -40,10 +40,10 @@ static const char *mtk_eth_path_name(int path)
 	}
 }
 
-static int set_mux_gdm1_to_gmac1_esw(struct mtk_eth *eth, int path)
+static int set_mux_gdm1_to_gmac1_esw(struct mtk_eth *eth, u64 path)
 {
 	bool updated = true;
-	u32 val, mask, set;
+	u32 mask, set, reg;
 
 	switch (path) {
 	case MTK_ETH_PATH_GMAC1_SGMII:
@@ -59,19 +59,21 @@ static int set_mux_gdm1_to_gmac1_esw(struct mtk_eth *eth, int path)
 		break;
 	}
 
-	if (updated) {
-		val = mtk_r32(eth, MTK_MAC_MISC);
-		val = (val & mask) | set;
-		mtk_w32(eth, val, MTK_MAC_MISC);
-	}
+	if (mtk_is_netsys_v3_or_greater(eth))
+		reg = MTK_MAC_MISC_V3;
+	else
+		reg = MTK_MAC_MISC;
+
+	if (updated)
+		mtk_m32(eth, mask, set, reg);
 
 	dev_dbg(eth->dev, "path %s in %s updated = %d\n",
 		mtk_eth_path_name(path), __func__, updated);
 
 	return 0;
 }
 
-static int set_mux_gmac2_gmac0_to_gephy(struct mtk_eth *eth, int path)
+static int set_mux_gmac2_gmac0_to_gephy(struct mtk_eth *eth, u64 path)
 {
 	unsigned int val = 0;
 	bool updated = true;
@@ -94,7 +96,7 @@ static int set_mux_gmac2_gmac0_to_gephy(struct mtk_eth *eth, int path)
 	return 0;
 }
 
-static int set_mux_u3_gmac2_to_qphy(struct mtk_eth *eth, int path)
+static int set_mux_u3_gmac2_to_qphy(struct mtk_eth *eth, u64 path)
 {
 	unsigned int val = 0, mask = 0, reg = 0;
 	bool updated = true;
@@ -125,7 +127,7 @@ static int set_mux_u3_gmac2_to_qphy(struct mtk_eth *eth, int path)
 	return 0;
 }
 
-static int set_mux_gmac1_gmac2_to_sgmii_rgmii(struct mtk_eth *eth, int path)
+static int set_mux_gmac1_gmac2_to_sgmii_rgmii(struct mtk_eth *eth, u64 path)
 {
 	unsigned int val = 0;
 	bool updated = true;
@@ -163,7 +165,7 @@ static int set_mux_gmac1_gmac2_to_sgmii_rgmii(struct mtk_eth *eth, int path)
 	return 0;
 }
 
-static int set_mux_gmac12_to_gephy_sgmii(struct mtk_eth *eth, int path)
+static int set_mux_gmac12_to_gephy_sgmii(struct mtk_eth *eth, u64 path)
 {
 	unsigned int val = 0;
 	bool updated = true;
@@ -218,7 +220,7 @@ static const struct mtk_eth_muxc mtk_eth_muxc[] = {
 	},
 };
 
-static int mtk_eth_mux_setup(struct mtk_eth *eth, int path)
+static int mtk_eth_mux_setup(struct mtk_eth *eth, u64 path)
 {
 	int i, err = 0;
 
@@ -249,7 +251,7 @@ static int mtk_eth_mux_setup(struct mtk_eth *eth, int path)
 
 int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id)
 {
-	int path;
+	u64 path;
 
 	path = (mac_id == 0) ?  MTK_ETH_PATH_GMAC1_SGMII :
 				MTK_ETH_PATH_GMAC2_SGMII;
@@ -260,7 +262,7 @@ int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id)
 
 int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id)
 {
-	int path = 0;
+	u64 path = 0;
 
 	if (mac_id == 1)
 		path = MTK_ETH_PATH_GMAC2_GEPHY;
@@ -274,7 +276,7 @@ int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id)
 
 int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id)
 {
-	int path;
+	u64 path;
 
 	path = (mac_id == 0) ?  MTK_ETH_PATH_GMAC1_RGMII :
 				MTK_ETH_PATH_GMAC2_RGMII;