net: hisilicon: Add Fast Ethernet MAC driver

Hisilicon Fast Ethernet MAC controller

Required properties:

- compatible: should contain one of the following version strings:

	* "hisilicon,hisi-femac-v1"

	* "hisilicon,hisi-femac-v2"

	and the soc string "hisilicon,hi3516cv300-femac".

- reg: specifies base physical address(s) and size of the device registers.

  The first region is the MAC core register base and size.

  The second region is the global MAC control register.

- interrupts: should contain the MAC interrupt.

- clocks: A phandle to the MAC main clock.

- resets: should contain the phandle to the MAC reset signal(required) and

	the PHY reset signal(optional).

- reset-names: should contain the reset signal name "mac"(required)

	and "phy"(optional).

- mac-address: see ethernet.txt [1].

- phy-mode: see ethernet.txt [1].

- phy-handle: see ethernet.txt [1].

- hisilicon,phy-reset-delays-us: triplet of delays if PHY reset signal given.

	The 1st cell is reset pre-delay in micro seconds.

	The 2nd cell is reset pulse in micro seconds.

	The 3rd cell is reset post-delay in micro seconds.

[1] Documentation/devicetree/bindings/net/ethernet.txt

Example:

	hisi_femac: ethernet@10090000 {

		compatible = "hisilicon,hi3516cv300-femac","hisilicon,hisi-femac-v2";

		reg = <0x10090000 0x1000>,<0x10091300 0x200>;

		interrupts = <12>;

		clocks = <&crg HI3518EV200_ETH_CLK>;

		resets = <&crg 0xec 0>,<&crg 0xec 3>;

		reset-names = "mac","phy";

		mac-address = [00 00 00 00 00 00];

		phy-mode = "mii";

		phy-handle = <&phy0>;

		hisilicon,phy-reset-delays-us = <10000 20000 20000>;

	};

	help

	  This selects the hix5hd2 mac family network device.

config HISI_FEMAC

	tristate "Hisilicon Fast Ethernet MAC device support"

	depends on HAS_IOMEM

	select PHYLIB

	select RESET_CONTROLLER

	help

	  This selects the Hisilicon Fast Ethernet MAC device(FEMAC).

	  The FEMAC receives and transmits data over Ethernet

	  ports at 10/100 Mbps in full-duplex or half-duplex mode.

	  The FEMAC exchanges data with the CPU, and supports

	  the energy efficient Ethernet (EEE).

config HIP04_ETH

	tristate "HISILICON P04 Ethernet support"

	depends on HAS_IOMEM	# For MFD_SYSCON

obj-$(CONFIG_HIP04_ETH) += hip04_eth.o

obj-$(CONFIG_HNS_MDIO) += hns_mdio.o

obj-$(CONFIG_HNS) += hns/

obj-$(CONFIG_HISI_FEMAC) += hisi_femac.o