107 lines
3.6 KiB
Plaintext
107 lines
3.6 KiB
Plaintext
# Atmel SAM Ethernet (GMAC) driver configuration options
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# Copyright (c) 2016 Piotr Mienkowski
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# SPDX-License-Identifier: Apache-2.0
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menuconfig ETH_SAM_GMAC
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bool "Atmel SAM Ethernet driver"
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default y
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depends on NET_BUF_FIXED_DATA_SIZE
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depends on DT_HAS_ATMEL_SAM_GMAC_ENABLED || \
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DT_HAS_ATMEL_SAM0_GMAC_ENABLED
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select NOCACHE_MEMORY if ARCH_HAS_NOCACHE_MEMORY_SUPPORT
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select MDIO
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help
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Enable Atmel SAM MCU Family Ethernet driver.
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if ETH_SAM_GMAC
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# Workaround for not being able to have commas in macro arguments
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DT_ETH_SAM_GMAC_PATH := $(dt_nodelabel_path,gmac)
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# Just for readability, to keep the following lines shorter.
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DT_ETH_SAM_GMAC_NQ := $(dt_node_int_prop_int,$(DT_ETH_SAM_GMAC_PATH),num-queues)
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config ETH_SAM_GMAC_QUEUES
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int "Number of active hardware TX and RX queues"
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default 1
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range 1 $(DT_ETH_SAM_GMAC_NQ) if SOC_SERIES_SAME70 || \
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SOC_SERIES_SAMV71 || \
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SOC_SERIES_SAM4E || \
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SOC_SERIES_SAME54
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help
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Select the number of hardware queues used by the driver. Packets will be
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routed to appropriate queues based on their priority.
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config ETH_SAM_GMAC_FORCE_QUEUE
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bool "Force all traffic to be routed through a specific queue"
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depends on ETH_SAM_GMAC_QUEUES > 1
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depends on NET_TC_RX_COUNT < 5
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help
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This option is meant to be used only for debugging. Use it to force all
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traffic to be routed through a specific hardware queue. With this enabled
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it is easier to verify whether the chosen hardware queue actually works.
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This works only if there are four or fewer RX traffic classes enabled, as
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the SAM GMAC hardware supports screening up to four traffic classes.
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config ETH_SAM_GMAC_FORCED_QUEUE
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int "Queue to force the packets to"
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depends on ETH_SAM_GMAC_FORCE_QUEUE
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default 0
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range 0 1 if ETH_SAM_GMAC_QUEUES = 2
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range 0 2 if ETH_SAM_GMAC_QUEUES = 3
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range 0 3 if ETH_SAM_GMAC_QUEUES = 4
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range 0 4 if ETH_SAM_GMAC_QUEUES = 5
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range 0 5 if ETH_SAM_GMAC_QUEUES = 6
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help
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Which queue to force the routing to. This affects both the TX and RX queues
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setup.
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config ETH_SAM_GMAC_BUF_RX_COUNT
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int "Network RX buffers preallocated by the SAM ETH driver"
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default 12
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help
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Number of network buffers that will be permanently allocated by the
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Ethernet driver. These buffers are used in receive path. They are
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preallocated by the driver and made available to the GMAC module to be
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filled in with incoming data. Their number has to be large enough to fit
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at least one complete Ethernet frame. SAM ETH driver will always allocate
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that amount of buffers for itself thus reducing the NET_BUF_RX_COUNT
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which is a total amount of RX data buffers used by the whole networking
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stack. One has to ensure that NET_PKT_RX_COUNT is large enough to
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fit at least two Ethernet frames: one being received by the GMAC module
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and the other being processed by the higher layer networking stack.
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config ETH_SAM_GMAC_MAC_I2C_EEPROM
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bool "Read from an I2C EEPROM"
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help
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Read MAC address from an I2C EEPROM.
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if ETH_SAM_GMAC_MAC_I2C_EEPROM
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config ETH_SAM_GMAC_MAC_I2C_INT_ADDRESS
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hex "I2C EEPROM internal address"
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range 0 0xffffffff
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help
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Internal address of the EEPROM chip where the MAC address is stored.
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Chips with 1 to 4 byte internal address size are supported. Address
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size has to be configured in a separate Kconfig option.
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config ETH_SAM_GMAC_MAC_I2C_INT_ADDRESS_SIZE
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int "I2C EEPROM internal address size"
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default 1
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range 1 4
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help
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Size (in bytes) of the internal EEPROM address.
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endif # ETH_SAM_GMAC_MAC_I2C_EEPROM
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config PTP_CLOCK_SAM_GMAC
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bool "SAM GMAC PTP clock driver support"
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default y
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depends on PTP_CLOCK
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help
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Enable SAM GMAC PTP Clock support.
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endif # ETH_SAM_GMAC
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