net: ethernet: mtk_wed: introduce WED support for MT7988

Similar to MT7986 and MT7622, enable Wireless Ethernet Ditpatcher for
MT7988 in order to offload traffic forwarded from LAN/WLAN to WLAN/LAN

Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Author: Sujuan Chen

drivers/net/ethernet/mediatek/mtk_eth_soc.c

@@ -197,6 +197,7 @@ static const struct mtk_reg_map mt7988_reg_map = {
 	.wdma_base = {
 		[0]		= 0x4800,
 		[1]		= 0x4c00,
+		[2]		= 0x5000,
 	},
 	.pse_iq_sta		= 0x0180,
 	.pse_oq_sta		= 0x01a0,

drivers/net/ethernet/mediatek/mtk_eth_soc.h

@@ -1132,7 +1132,7 @@ struct mtk_reg_map {
 	u32	gdm1_cnt;
 	u32	gdma_to_ppe;
 	u32	ppe_base;
-	u32	wdma_base[2];
+	u32	wdma_base[3];
 	u32	pse_iq_sta;
 	u32	pse_oq_sta;
 };

drivers/net/ethernet/mediatek/mtk_ppe_offload.c

@@ -201,6 +201,9 @@ mtk_flow_set_output_device(struct mtk_eth *eth, struct mtk_foe_entry *foe,
 			case 1:
 				pse_port = PSE_WDMA1_PORT;
 				break;
+			case 2:
+				pse_port = PSE_WDMA2_PORT;
+				break;
 			default:
 				return -EINVAL;
 			}