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https://github.com/brain-hackers/u-boot-brain
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![Hannes Schmelzer](/assets/img/avatar_default.png)
This patch adds support for having a "fixed-link" to some other MAC (like some embedded switch-device). For this purpose we introduce a new phy-driver, called "Fixed PHY". Fixed PHY works only with CONFIG_DM_ETH enabled, since the fixed-link is described with a subnode below ethernet interface. Most ethernet drivers (unfortunately not all are following same scheme for searching/attaching phys) are calling "phy_connect(...)" for getting a phy-device. At this point we link in, we search here for a subnode called "fixed- link", once found we start phy_device_create(...) with the special phy- id PHY_FIXED_ID (0xa5a55a5a). During init the "Fixed PHY" driver has registered with this id and now gets probed, during probe we get all the details about fixed-link out of dts, later on the phy reports this values. Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com> Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
104 lines
2.6 KiB
Plaintext
104 lines
2.6 KiB
Plaintext
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config BITBANGMII
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bool "Bit-banged ethernet MII management channel support"
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config MV88E6352_SWITCH
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bool "Marvell 88E6352 switch support"
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menuconfig PHYLIB
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bool "Ethernet PHY (physical media interface) support"
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help
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Enable Ethernet PHY (physical media interface) support.
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if PHYLIB
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config MV88E61XX_SWITCH
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bool "Marvel MV88E61xx Ethernet switch PHY support."
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config PHYLIB_10G
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bool "Generic 10G PHY support"
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config PHY_AQUANTIA
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bool "Aquantia Ethernet PHYs support"
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config PHY_ATHEROS
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bool "Atheros Ethernet PHYs support"
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config PHY_BROADCOM
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bool "Broadcom Ethernet PHYs support"
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config PHY_CORTINA
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bool "Cortina Ethernet PHYs support"
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config PHY_DAVICOM
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bool "Davicom Ethernet PHYs support"
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config PHY_ET1011C
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bool "LSI TruePHY ET1011C support"
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config PHY_LXT
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bool "LXT971 Ethernet PHY support"
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config PHY_MARVELL
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bool "Marvell Ethernet PHYs support"
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config PHY_MICREL
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bool "Micrel Ethernet PHYs support"
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config PHY_MSCC
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bool "Microsemi Corp Ethernet PHYs support"
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config PHY_NATSEMI
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bool "National Semiconductor Ethernet PHYs support"
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config PHY_REALTEK
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bool "Realtek Ethernet PHYs support"
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config RTL8211X_PHY_FORCE_MASTER
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bool "Ethernet PHY RTL8211x: force 1000BASE-T master mode"
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depends on PHY_REALTEK
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help
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Force master mode for 1000BASE-T on RTl8211x PHYs (except for RTL8211F).
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This can work around link stability and data corruption issues on gigabit
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links which can occur in slave mode on certain PHYs, e.g. on the
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RTL8211C(L).
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Please note that two directly connected devices (i.e. via crossover cable)
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will not be able to establish a link between each other if they both force
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master mode. Multiple devices forcing master mode when connected by a
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network switch do not pose a problem as the switch configures its affected
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ports into slave mode.
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This option only affects gigabit links. If you must establish a direct
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connection between two devices which both force master mode, try forcing
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the link speed to 100MBit/s.
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If unsure, say N.
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config PHY_SMSC
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bool "Microchip(SMSC) Ethernet PHYs support"
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config PHY_TERANETICS
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bool "Teranetics Ethernet PHYs support"
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config PHY_TI
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bool "Texas Instruments Ethernet PHYs support"
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config PHY_VITESSE
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bool "Vitesse Ethernet PHYs support"
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config PHY_XILINX
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bool "Xilinx Ethernet PHYs support"
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config PHY_FIXED
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bool "Fixed-Link PHY"
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depends on DM_ETH
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help
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Fixed PHY is used for having a 'fixed-link' to another MAC with a direct
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connection (MII, RGMII, ...).
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There is nothing like autoneogation and so
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on, the link is always up with fixed speed and fixed duplex-setting.
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More information: doc/device-tree-bindings/net/fixed-link.txt
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endif #PHYLIB
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