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Commit 49220505 authored by Stefan Roese's avatar Stefan Roese Committed by David S. Miller
Browse files

net: Add EMAC ethernet driver found on Allwinner A10 SoC's 



The Allwinner A10 has an ethernet controller that seem to be developped
internally by them.

The exact feature set of this controller is unknown, since there is no
public documentation for this IP, and this driver is mostly the one
published by Allwinner that has been heavily cleaned up.

Signed-off-by: default avatarStefan Roese <sr@denx.de>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: default avatarRichard Genoud <richard.genoud@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2cc70ba4

Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt

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* Allwinner EMAC ethernet controller



Required properties:

- compatible: should be "allwinner,sun4i-emac".

- reg: address and length of the register set for the device.

- interrupts: interrupt for the device

- phy: A phandle to a phy node defining the PHY address (as the reg

  property, a single integer).

- clocks: A phandle to the reference clock for this device



Optional properties:

- (local-)mac-address: mac address to be used by this driver



Example:



emac: ethernet@01c0b000 {

       compatible = "allwinner,sun4i-emac";

       reg = <0x01c0b000 0x1000>;

       interrupts = <55>;

       clocks = <&ahb_gates 17>;

       phy = <&phy0>;

};

drivers/net/ethernet/Kconfig

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@@ -20,6 +20,7 @@ config SUNGEM_PHY 
source "drivers/net/ethernet/3com/Kconfig"

source "drivers/net/ethernet/adaptec/Kconfig"

source "drivers/net/ethernet/aeroflex/Kconfig"

source "drivers/net/ethernet/allwinner/Kconfig"

source "drivers/net/ethernet/alteon/Kconfig"

source "drivers/net/ethernet/amd/Kconfig"

source "drivers/net/ethernet/apple/Kconfig"

drivers/net/ethernet/Makefile

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@@ -6,6 +6,7 @@ obj-$(CONFIG_NET_VENDOR_3COM) += 3com/ 
obj-$(CONFIG_NET_VENDOR_8390) += 8390/

obj-$(CONFIG_NET_VENDOR_ADAPTEC) += adaptec/

obj-$(CONFIG_GRETH) += aeroflex/

obj-$(CONFIG_NET_VENDOR_ALLWINNER) += allwinner/

obj-$(CONFIG_NET_VENDOR_ALTEON) += alteon/

obj-$(CONFIG_NET_VENDOR_AMD) += amd/

obj-$(CONFIG_NET_VENDOR_APPLE) += apple/

drivers/net/ethernet/allwinner/Kconfig

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#

# Allwinner device configuration

#



config NET_VENDOR_ALLWINNER

       bool "Allwinner devices"

       default y

       depends on ARCH_SUNXI

       ---help---

         If you have a network (Ethernet) card belonging to this

	 class, say Y and read the Ethernet-HOWTO, available from

	 <http://www.tldp.org/docs.html#howto>.



	 Note that the answer to this question doesn't directly

	 affect the kernel: saying N will just cause the configurator

	 to skip all the questions about Allwinner cards. If you say Y,

	 you will be asked for your specific card in the following

	 questions.



if NET_VENDOR_ALLWINNER



config SUN4I_EMAC

        tristate "Allwinner A10 EMAC support"

	depends on ARCH_SUNXI

	depends on OF

	select CRC32

	select NET_CORE

	select MII

	select PHYLIB

        ---help---

          Support for Allwinner A10 EMAC ethernet driver.



          To compile this driver as a module, choose M here.  The module

          will be called sun4i-emac.



endif # NET_VENDOR_ALLWINNER

drivers/net/ethernet/allwinner/Makefile

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#

# Makefile for the Allwinner device drivers.

#



obj-$(CONFIG_SUN4I_EMAC) += sun4i-emac.o