NXP SJA1105 Ethernet switch family support

modulename: sja1105.ko

configname: CONFIG_NET_DSA_SJA1105

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Distributed Switch Architecture drivers
└─>NXP SJA1105 Ethernet switch family support
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This is the driver for the NXP SJA1105 automotive Ethernet switch
family. These are 5-port devices and are managed over an SPI
interface. Probing is handled based on OF bindings and so is the
linkage to PHYLINK. The driver supports the following revisions:
- SJA1105E (Gen. 1, No TT-Ethernet)
- SJA1105T (Gen. 1, TT-Ethernet)
- SJA1105P (Gen. 2, No SGMII, No TT-Ethernet)
- SJA1105Q (Gen. 2, No SGMII, TT-Ethernet)
- SJA1105R (Gen. 2, SGMII, No TT-Ethernet)
- SJA1105S (Gen. 2, SGMII, TT-Ethernet)

source code: