net: phytium: Add support for phytium GMAC

Documentation/devicetree/bindings/net/phytmac.yaml

@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+* Phytium xgmac Ethernet controller
+
+Required properties:
+- compatible: Should be "phytium,gmac-[version]"
+  Use "phytium,gmac-1.0" for gmac version 1.0 on Phytium SoCs
+  Use "phytium,gmac-2.0" for gmac version 2.0 on Phytium SoCs
+
+- reg: Address and length of the register set for the device
+- interrupts: Should contain phytmac interrupt
+- queue-number: The number of queues for the device
+- phy-mode: See ethernet.txt file in the same directory
+- fixed-link：See ethernet.txt file in the same directory
+- dma-coherent: Boolean property, must only be present if memory
+	accesses performed by the device are cache coherent.
+
+The MAC address will be determined using the optional properties
+defined in ethernet.txt.
+
+Examples:
+
+	eth0@36ce0000 {
+			compatible = "phytium,gmac-1.0";
+			reg = <0x00 0x36ce0000 0x00 0x2000>;
+			interrupts = <0x00 0x20 0x04 0x00 0x21 0x04 0x00 0x22 0x04 0x00 0x23 0x04>;
+			queue-number = <0x04>;
+			magic-packet;
+			dma-coherent;
+			phy-mode = "usxgmii";
+			status = "okay";
+
+			fixed-link {
+					speed = <0x2710>;
+					full-duplex;
+			};
+	};

drivers/net/ethernet/Kconfig

@@ -192,5 +192,6 @@ source "drivers/net/ethernet/wangxun/Kconfig"
 source "drivers/net/ethernet/wiznet/Kconfig"
 source "drivers/net/ethernet/xilinx/Kconfig"
 source "drivers/net/ethernet/xircom/Kconfig"
+source "drivers/net/ethernet/phytium/Kconfig"
 
 endif # ETHERNET

drivers/net/ethernet/Makefile

@@ -104,3 +104,4 @@ obj-$(CONFIG_NET_VENDOR_XILINX) += xilinx/
 obj-$(CONFIG_NET_VENDOR_XIRCOM) += xircom/
 obj-$(CONFIG_NET_VENDOR_SYNOPSYS) += synopsys/
 obj-$(CONFIG_NET_VENDOR_PENSANDO) += pensando/
+obj-$(CONFIG_NET_VENDOR_PHYTIUM) += phytium/

drivers/net/ethernet/phytium/Kconfig

@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Phytium device configuration
+#
+
+config NET_VENDOR_PHYTIUM
+	bool "Phytium devices"
+	depends on HAS_IOMEM
+	default y
+	help
+	  If you have a network (Ethernet) card belonging to this class, say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all the
+	  remaining Cadence network card questions. If you say Y, you will be
+	  asked for your specific card in the following questions.
+
+if NET_VENDOR_PHYTIUM
+
+config PHYTMAC
+	tristate "Phytium GMAC support"
+	depends on HAS_DMA
+	select PHYLINK
+	select CRC32
+	help
+	  If you have a network (Ethernet) controller of this type, say Y
+	  or M here.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be phytmac.
+
+config PHYTMAC_ENABLE_PTP
+	bool "Enable IEEE 1588 hwstamp"
+	depends on PHYTMAC
+	depends on PTP_1588_CLOCK
+	default y
+	help
+	  Enable IEEE 1588 PTP support for PHYTMAC.
+
+config PHYTMAC_PLATFORM
+	tristate "Phytmac Platform support"
+	depends on PHYTMAC
+	help
+	  This is Platform driver.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called phytmac_platform.
+
+config PHYTMAC_PCI
+	tristate "Phytmac PCI support"
+	depends on PHYTMAC && PCI
+	help
+	  This is PCI driver.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called phytmac_pci.
+
+endif # NET_VENDOR_PHYTIUM

drivers/net/ethernet/phytium/Makefile

@@ -0,0 +1,17 @@
+
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Phytium network device drivers.
+#
+#
+
+obj-$(CONFIG_PHYTMAC) += phytmac.o
+
+phytmac-objs := phytmac_main.o phytmac_ethtool.o phytmac_v1.o phytmac_v2.o
+phytmac-$(CONFIG_PHYTMAC_ENABLE_PTP) += phytmac_ptp.o
+
+obj-$(CONFIG_PHYTMAC_PLATFORM) += phytmac-platform.o
+phytmac-platform-objs := phytmac_platform.o
+
+obj-$(CONFIG_PHYTMAC_PCI) += phytmac-pci.o
+phytmac-pci-objs := phytmac_pci.o