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https://github.com/espressif/esp-idf.git
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a6db3a5e77
RMII clock mode is made to be run-time configurable. Closes https://github.com/espressif/esp-idf/issues/6564 Closes https://github.com/espressif/esp-idf/issues/7107
173 lines
6.6 KiB
Plaintext
173 lines
6.6 KiB
Plaintext
menu "Ethernet"
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# Invisible item that is enabled if any Ethernet selection is made
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config ETH_ENABLED
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bool
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menuconfig ETH_USE_ESP32_EMAC
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depends on IDF_TARGET_ESP32
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bool "Support ESP32 internal EMAC controller"
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default y
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select ETH_ENABLED
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help
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ESP32 integrates a 10/100M Ethernet MAC controller.
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if ETH_USE_ESP32_EMAC
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choice ETH_PHY_INTERFACE
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prompt "PHY interface"
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default ETH_PHY_INTERFACE_RMII
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help
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Select the communication interface between MAC and PHY chip.
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config ETH_PHY_INTERFACE_RMII
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bool "Reduced Media Independent Interface (RMII)"
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endchoice
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if ETH_PHY_INTERFACE_RMII
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choice ETH_RMII_CLK_MODE
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prompt "RMII clock mode"
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default ETH_RMII_CLK_INPUT
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help
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Select external or internal RMII clock.
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config ETH_RMII_CLK_INPUT
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bool "Input RMII clock from external"
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help
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MAC will get RMII clock from outside.
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Note that ESP32 only supports GPIO0 to input the RMII clock.
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config ETH_RMII_CLK_OUTPUT
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bool "Output RMII clock from internal"
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help
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ESP32 can generate RMII clock by internal APLL.
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This clock can be routed to the external PHY device.
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ESP32 supports to route the RMII clock to GPIO0/16/17.
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endchoice
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endif # ETH_PHY_INTERFACE_RMII
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if ETH_RMII_CLK_INPUT
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config ETH_RMII_CLK_IN_GPIO
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int
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range 0 0
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default 0
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help
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ESP32 only supports GPIO0 to input the RMII clock.
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endif # ETH_RMII_CLK_INPUT
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if ETH_RMII_CLK_OUTPUT
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config ETH_RMII_CLK_OUTPUT_GPIO0
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bool "Output RMII clock from GPIO0 (Experimental!)"
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default n
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help
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GPIO0 can be set to output a pre-divided PLL clock (test only!).
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Enabling this option will configure GPIO0 to output a 50MHz clock.
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In fact this clock doesn't have directly relationship with EMAC peripheral.
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Sometimes this clock won't work well with your PHY chip. You might need to
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add some extra devices after GPIO0 (e.g. inverter).
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Note that outputting RMII clock on GPIO0 is an experimental practice.
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If you want the Ethernet to work with WiFi, don't select GPIO0 output mode for stability.
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if !ETH_RMII_CLK_OUTPUT_GPIO0
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config ETH_RMII_CLK_OUT_GPIO
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int "RMII clock GPIO number"
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range 16 17
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default 17
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help
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Set the GPIO number to output RMII Clock.
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endif # !ETH_RMII_CLK_OUTPUT_GPIO0
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endif # ETH_RMII_CLK_OUTPUT
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config ETH_DMA_BUFFER_SIZE
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int "Ethernet DMA buffer size (Byte)"
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range 256 1600
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default 512
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help
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Set the size of each buffer used by Ethernet MAC DMA.
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config ETH_DMA_RX_BUFFER_NUM
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int "Amount of Ethernet DMA Rx buffers"
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range 3 30
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default 10
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help
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Number of DMA receive buffers. Each buffer's size is ETH_DMA_BUFFER_SIZE.
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Larger number of buffers could increase throughput somehow.
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config ETH_DMA_TX_BUFFER_NUM
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int "Amount of Ethernet DMA Tx buffers"
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range 3 30
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default 10
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help
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Number of DMA transmit buffers. Each buffer's size is ETH_DMA_BUFFER_SIZE.
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Larger number of buffers could increase throughput somehow.
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if ETH_DMA_RX_BUFFER_NUM > 15
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config ETH_SOFT_FLOW_CONTROL
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bool "Enable software flow control"
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default n
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help
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Ethernet MAC engine on ESP32 doesn't feature a flow control logic.
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The MAC driver can perform a software flow control if you enable this option.
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Note that, if the RX buffer number is small, enabling software flow control will
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cause obvious performance loss.
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endif
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endif # ETH_USE_ESP32_EMAC
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menuconfig ETH_USE_SPI_ETHERNET
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bool "Support SPI to Ethernet Module"
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default y
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select ETH_ENABLED
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help
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ESP-IDF can also support some SPI-Ethernet modules.
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if ETH_USE_SPI_ETHERNET
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config ETH_SPI_ETHERNET_DM9051
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bool "Use DM9051"
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help
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DM9051 is a fast Ethernet controller with an SPI interface.
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It's also integrated with a 10/100M PHY and MAC.
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Select this to enable DM9051 driver.
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config ETH_SPI_ETHERNET_W5500
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bool "Use W5500 (MAC RAW)"
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help
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W5500 is a HW TCP/IP embedded Ethernet controller.
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TCP/IP stack, 10/100 Ethernet MAC and PHY are embedded in a single chip.
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However the driver in ESP-IDF only enables the RAW MAC mode,
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making it compatible with the software TCP/IP stack.
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Say yes to enable W5500 driver.
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config ETH_SPI_ETHERNET_KSZ8851SNL
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bool "Use KSZ8851SNL"
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help
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The KSZ8851SNL is a single-chip Fast Ethernet controller consisting of
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a 10/100 physical layer transceiver (PHY), a MAC, and a Serial Peripheral Interface (SPI).
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Select this to enable KSZ8851SNL driver.
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endif # ETH_USE_SPI_ETHERNET
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menuconfig ETH_USE_OPENETH
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bool "Support OpenCores Ethernet MAC (for use with QEMU)"
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default n
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select ETH_ENABLED
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help
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OpenCores Ethernet MAC driver can be used when an ESP-IDF application
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is executed in QEMU. This driver is not supported when running on a
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real chip.
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if ETH_USE_OPENETH
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config ETH_OPENETH_DMA_RX_BUFFER_NUM
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int "Number of Ethernet DMA Rx buffers"
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range 1 64
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default 4
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help
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Number of DMA receive buffers, each buffer is 1600 bytes.
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config ETH_OPENETH_DMA_TX_BUFFER_NUM
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int "Number of Ethernet DMA Tx buffers"
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range 1 64
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default 1
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help
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Number of DMA transmit buffers, each buffer is 1600 bytes.
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endif # ETH_USE_OPENETH
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endmenu
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