Commit 967dd82f authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

net: dsa: b53: Add support for Broadcom RoboSwitch 



This patch adds support for Broadcom's BCM53xx switch family, also known
as RoboSwitch. Some of these switches are ubiquituous, found in home
routers, Wi-Fi routers, DSL and cable modem gateways and other
networking related products.

This drivers adds the library driver (b53_common.c) as well as a few bus
glue drivers for MDIO, SPI, Switch Register Access Block (SRAB) and
memory-mapped I/O into a SoC's address space (Broadcom BCM63xx/33xx).

Basic operations are supported to bring the Layer 1/2 up and running,
but not much more at this point, subsequent patches add the remaining
features.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 409a5f27

Documentation/devicetree/bindings/net/dsa/b53.txt

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Broadcom BCM53xx Ethernet switches

==================================



Required properties:



- compatible: For external switch chips, compatible string must be exactly one

  of: "brcm,bcm5325"

      "brcm,bcm53115"

      "brcm,bcm53125"

      "brcm,bcm53128"

      "brcm,bcm5365"

      "brcm,bcm5395"

      "brcm,bcm5397"

      "brcm,bcm5398"



  For the BCM5310x SoCs with an integrated switch, must be one of:

      "brcm,bcm53010-srab"

      "brcm,bcm53011-srab"

      "brcm,bcm53012-srab"

      "brcm,bcm53018-srab"

      "brcm,bcm53019-srab" and the mandatory "brcm,bcm5301x-srab" string



  For the BCM63xx/33xx SoCs with an integrated switch, must be one of:

      "brcm,bcm3384-switch"

      "brcm,bcm6328-switch"

      "brcm,bcm6368-switch" and the mandatory "brcm,bcm63xx-switch"



See Documentation/devicetree/bindings/dsa/dsa.txt for a list of additional

required and optional properties.



Examples:



Ethernet switch connected via MDIO to the host, CPU port wired to eth0:



	eth0: ethernet@10001000 {

		compatible = "brcm,unimac";

		reg = <0x10001000 0x1000>;



		fixed-link {

			speed = <1000>;

			duplex-full;

		};

	};



	mdio0: mdio@10000000 {

		compatible = "brcm,unimac-mdio";

		#address-cells = <1>;

		#size-cells = <0>;



		switch0: ethernet-switch@30 {

			compatible = "brcm,bcm53125";

			#address-cells = <1>;

			#size-cells = <0>;



			ports {

				port0@0 {

					reg = <0>;

					label = "lan1";

				};



				port1@1 {

					reg = <1>;

					label = "lan2";

				};



				port5@5 {

					reg = <5>;

					label = "cable-modem";

					fixed-link {

						speed = <1000>;

						duplex-full;

					};

					phy-mode = "rgmii-txid";

				};



				port8@8 {

					reg = <8>;

					label = "cpu";

					fixed-link {

						speed = <1000>;

						duplex-full;

					};

					phy-mode = "rgmii-txid";

					ethernet = <&eth0>;

				};

			};

		};

	};

MAINTAINERS

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@@ -2454,6 +2454,14 @@ L: netdev@vger.kernel.org 
S:	Supported

F:	drivers/net/ethernet/broadcom/b44.*



BROADCOM B53 ETHERNET SWITCH DRIVER

M:	Florian Fainelli <f.fainelli@gmail.com>

L:	netdev@vger.kernel.org

L:	openwrt-devel@lists.openwrt.org (subscribers-only)

S:	Supported

F:	drivers/net/dsa/b53/*

F:	include/linux/platform_data/b53.h



BROADCOM GENET ETHERNET DRIVER

M:	Florian Fainelli <f.fainelli@gmail.com>

L:	netdev@vger.kernel.org

drivers/net/dsa/Kconfig

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@@ -28,4 +28,6 @@ config NET_DSA_BCM_SF2 
	  This enables support for the Broadcom Starfighter 2 Ethernet

	  switch chips.



source "drivers/net/dsa/b53/Kconfig"



endmenu

drivers/net/dsa/Makefile

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obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o

obj-$(CONFIG_NET_DSA_MV88E6XXX) += mv88e6xxx.o

obj-$(CONFIG_NET_DSA_BCM_SF2)	+= bcm_sf2.o



obj-y				+= b53/

drivers/net/dsa/b53/Kconfig

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menuconfig B53

	tristate "Broadcom BCM53xx managed switch support"

	depends on NET_DSA

	help

	  This driver adds support for Broadcom managed switch chips. It supports

	  BCM5325E, BCM5365, BCM539x, BCM53115 and BCM53125 as well as BCM63XX

	  integrated switches.



config B53_SPI_DRIVER

	tristate "B53 SPI connected switch driver"

	depends on B53 && SPI

	help

	  Select to enable support for registering switches configured through SPI.



config B53_MDIO_DRIVER

	tristate "B53 MDIO connected switch driver"

	depends on B53

	help

	  Select to enable support for registering switches configured through MDIO.



config B53_MMAP_DRIVER

	tristate "B53 MMAP connected switch driver"

	depends on B53 && HAS_IOMEM

	help

	  Select to enable support for memory-mapped switches like the BCM63XX

	  integrated switches.



config B53_SRAB_DRIVER

	tristate "B53 SRAB connected switch driver"

	depends on B53 && HAS_IOMEM

	help

	  Select to enable support for memory-mapped Switch Register Access

	  Bridge Registers (SRAB) like it is found on the BCM53010

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