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