menu "Example Configuration" config STORE_HISTORY bool "Store command history in flash" default y help Linenoise line editing library provides functions to save and load command history. If this option is enabled, initalizes a FAT filesystem and uses it to store command history. menu "Etherent PHY Device" choice PHY_MODEL prompt "Ethernet PHY Device" default PHY_IP101 help Select the PHY driver to use for the example. config PHY_IP101 bool "IP101" help IP101 is a single port 10/100 MII/RMII/TP/Fiber Fast Ethernet Transceiver. Goto http://www.icplus.com.tw/pp-IP101G.html for more information about it. config PHY_TLK110 bool "TLK110" help TLK110 is an Industrial 10/100Mbps Ethernet Physical Layer Transceiver. Goto http://www.ti.com/product/TLK110 for information about it. config PHY_LAN8720 bool "LAN8720" help LAN8720 is a small footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support. Goto https://www.microchip.com/LAN8720A for more information about it. endchoice config PHY_ADDRESS int "Ethernet PHY Address" default 1 range 0 31 help PHY Address of your PHY device. It dependens on your schematic design. choice PHY_CLOCK_MODE prompt "Ethernet PHY Clock Mode" default PHY_CLOCK_GPIO0_IN help Select external (input on GPIO0) or internal (output on GPIO0, GPIO16 or GPIO17) RMII clock. config PHY_CLOCK_GPIO0_IN bool "GPIO0 Input" help Input of 50MHz RMII clock on GPIO0. config PHY_CLOCK_GPIO0_OUT bool "GPIO0 Output(READ HELP)" help GPIO0 can be set to output a pre-divided PLL clock (test only!). Enabling this option will configure GPIO0 to output a 50MHz clock. In fact this clock doesn't have directly relationship with EMAC peripheral. Sometimes this clock won't work well with your PHY chip. You might need to add some extra devices after GPIO0 (e.g. inverter). Note that outputting RMII clock on GPIO0 is an experimental practice. If you want the Ethernet to work with WiFi, don't select GPIO0 output mode for stability. config PHY_CLOCK_GPIO16_OUT bool "GPIO16 Output" help Output the internal 50MHz RMII clock on GPIO16. config PHY_CLOCK_GPIO17_OUT bool "GPIO17 Output (inverted)" help Output the internal 50MHz RMII clock on GPIO17 (inverted signal). endchoice config PHY_CLOCK_MODE int default 0 if PHY_CLOCK_GPIO0_IN default 1 if PHY_CLOCK_GPIO0_OUT default 2 if PHY_CLOCK_GPIO16_OUT default 3 if PHY_CLOCK_GPIO17_OUT config PHY_USE_POWER_PIN bool "Use PHY Power (enable / disable) pin" default y help Use a GPIO "power pin" to power the PHY on/off during operation. When using GPIO0 to input RMII clock, the reset process will be interfered by this clock. So we need another GPIO to control the switch on / off of the RMII clock. if PHY_USE_POWER_PIN config PHY_POWER_PIN int "PHY Power GPIO" default 5 range 0 33 depends on PHY_USE_POWER_PIN help GPIO number to use for powering on/off the PHY. endif endmenu menu "Etherent SMI interface" config PHY_SMI_MDC_PIN int "SMI MDC Pin Number" default 23 range 0 33 help GPIO number used for SMI clock signal. config PHY_SMI_MDIO_PIN int "SMI MDIO Pin Number" default 18 range 0 33 help GPIO number used for SMI data signal. endmenu endmenu