ec3eff57e0
Up until now, Zephyr has patched Kconfig to use the last 'default' with
a satisfied condition, instead of the first one. I'm not sure why the
patch was added (it predates Kconfiglib), but I suspect it's related to
Kconfig.defconfig files.
There are at least three problems with the patch:
1. It's inconsistent with how Kconfig works in other projects, which
might confuse newcomers.
2. Due to oversights, earlier 'range' properties are still preferred,
as well as earlier 'default' properties on choices.
In addition to being inconsistent, this makes it impossible to
override 'range' properties and choice 'default' properties if the
base definition of the symbol/choice already has 'range'/'default'
properties.
I've seen errors caused by the inconsistency, and I suspect there
are more.
3. A fork of Kconfiglib that adds the patch needs to be maintained.
Get rid of the patch and go back to standard Kconfig behavior, as
follows:
1. Include the Kconfig.defconfig files first instead of last in
Kconfig.zephyr.
2. Include boards/Kconfig and arch/<arch>/Kconfig first instead of
last in arch/Kconfig.
3. Include arch/<arch>/soc/*/Kconfig first instead of last in
arch/<arch>/Kconfig.
4. Swap a few other 'source's to preserve behavior for some scattered
symbols with multiple definitions.
Swap 'source's in some no-op cases too, where it might match the
intent.
5. Reverse the defaults on symbol definitions that have more than one
default.
Skip defaults that are mutually exclusive, e.g. where each default
has an 'if <some board>' condition. They are already safe.
6. Remove the prefer-later-defaults patch from Kconfiglib.
Testing was done with a Python script that lists all Kconfig
symbols/choices with multiple defaults, along with a whitelist of fixed
symbols. The script also verifies that there are no "unreachable"
defaults hidden by defaults without conditions
As an additional test, zephyr/.config was generated before and after the
change for several samples and checked to be identical (after sorting).
This commit includes some default-related cleanups as well:
- Simplify some symbol definitions, e.g. where a default has 'if FOO'
when the symbol already has 'depends on FOO'.
- Remove some redundant 'default ""' for string symbols. This is the
implicit default.
Piggyback fixes for swapped ranges on BT_L2CAP_RX_MTU and
BT_L2CAP_TX_MTU (caused by confusing inconsistency).
Piggyback some fixes for style nits too, e.g. unindented help texts.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
149 lines
3.3 KiB
Text
149 lines
3.3 KiB
Text
# Kconfig - ETH_MCUX Ethernet driver configuration options
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# Copyright (c) 2016-2017 ARM Ltd
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#
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# SPDX-License-Identifier: Apache-2.0
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menuconfig ETH_MCUX
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bool
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prompt "MCUX Ethernet driver"
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depends on NET_L2_ETHERNET && HAS_MCUX
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help
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Enable MCUX Ethernet driver. Note, this driver performs one shot PHY
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setup. There is no support for PHY disconnect, reconnect or
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configuration change.
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if ETH_MCUX
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config ETH_MCUX_PROMISCUOUS_MODE
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bool "Enable promiscuous mode"
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help
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Place the Ethernet receiver in promiscuous mode. This may be useful
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for debugging and not needed for normal work.
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config ETH_MCUX_PHY_TICK_MS
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int "PHY poll period (ms)"
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default 1000
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range 100 30000
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help
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Set the PHY status polling period.
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config ETH_MCUX_PHY_EXTRA_DEBUG
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bool "Enable additional detailed PHY debug"
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help
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Enable additional PHY related debug information related to
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PHY status polling.
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config ETH_MCUX_RX_BUFFERS
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int "Number of MCUX RX buffers"
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depends on ETH_MCUX
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default 2
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range 1 16
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help
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Set the number of RX buffers provided to the MCUX driver.
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config ETH_MCUX_TX_BUFFERS
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int "Number of MCUX TX buffers"
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depends on ETH_MCUX
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default 2
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range 1 16
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help
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Set the number of TX buffers provided to the MCUX driver.
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config ETH_MCUX_0
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bool "MCUX Ethernet port 0"
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help
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Include port 0 driver
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config ETH_MCUX_0_NAME
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string "Driver name"
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depends on ETH_MCUX_0
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default "ETH_0"
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config ETH_MCUX_0_IRQ_PRI
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int "Controller interrupt priority"
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depends on ETH_MCUX_0
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default 0
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help
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IRQ priority
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choice ETH_MCUX_0_MAC_SELECT
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prompt "MAC address"
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help
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Choose how to configure MAC address.
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config ETH_MCUX_0_UNIQUE_MAC
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bool "Stable MAC address"
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help
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Generate MAC address from MCU's unique identification register.
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config ETH_MCUX_0_RANDOM_MAC
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bool "Random MAC address"
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help
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Generate a random MAC address dynamically on each reboot.
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Note that using this choice and rebooting a board may leave
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stale MAC address in peers' ARP caches and lead to issues and
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delays in communication. (Use "ip neigh flush all" on Linux
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peers to clear ARP cache.)
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config ETH_MCUX_0_MANUAL_MAC
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bool "Manual MAC address"
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endchoice
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if ETH_MCUX_0_MANUAL_MAC
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config ETH_MCUX_0_MAC3
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hex "MAC Address Byte 3"
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default 0
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range 0 0xff
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help
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This is the byte 3 of the MAC address.
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config ETH_MCUX_0_MAC4
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hex "MAC Address Byte 4"
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default 0
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range 0 0xff
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help
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This is the byte 4 of the MAC address.
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config ETH_MCUX_0_MAC5
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hex "MAC Address Byte 5"
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default 0
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range 0 0xff
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help
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This is the byte 5 of the MAC address.
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endif
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config PTP_CLOCK_MCUX
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bool "MCUX PTP clock driver support"
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default y
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depends on PTP_CLOCK && NET_PKT_TIMESTAMP
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help
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Enable MCUX PTP clock support.
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if PTP_CLOCK_MCUX
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config ETH_MCUX_PTP_RX_BUFFERS
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int "Size of the RX timestamp ring buffer"
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default 10
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help
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Set the number of RX buffers provided to the MCUX driver
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to store timestamps.
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config ETH_MCUX_PTP_TX_BUFFERS
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int "Size of the TX timestamp ring buffer"
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default 10
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help
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Set the number of TX buffers provided to the MCUX driver
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to store timestamps.
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config ETH_MCUX_PTP_CLOCK_SRC_HZ
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int "Frequency of the clock source for the PTP timer"
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default 50000000
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help
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Set the frequency in Hz sourced to the PTP timer.
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If the value is set properly, the timer will be accurate.
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endif # PTP_CLOCK_MCUX
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endif
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