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https://github.com/zephyrproject-rtos/zephyr
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The default priority for I2C controller initialization is POST_KERNEL 60 (SPI 70), while the default priority for device configuration is POST_KERNEL 50. Thus the EEPROM is being initialized before its controller. While for this driver that wouldn't be an issue recent changes mean the device lookup returns NULL before the device is initialized. Change the AT2X priority to 75 so it falls between the I2C and SPI drivers and the default ethernet priority (80), since some ethernet controllers may store the MAC address in EEPROM. Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
90 lines
1.9 KiB
Plaintext
90 lines
1.9 KiB
Plaintext
# EEPROM driver configuration options
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# Copyright (c) 2019 Vestas Wind Systems A/S
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# SPDX-License-Identifier: Apache-2.0
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menuconfig EEPROM
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bool "EEPROM hardware support"
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help
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Enable support for EEPROM hardware.
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if EEPROM
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module = EEPROM
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module-str = eeprom
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source "subsys/logging/Kconfig.template.log_config"
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config EEPROM_SHELL
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bool "Enable EEPROM shell"
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default y
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depends on SHELL
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help
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Enable the EEPROM shell with EEPROM related commands.
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config EEPROM_SHELL_BUFFER_SIZE
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int "EEPROM shell buffer size"
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default 256
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depends on EEPROM_SHELL
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help
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Size of the buffer used for EEPROM read/write commands in
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the EEPROM shell.
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config EEPROM_AT2X
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bool
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help
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Enable support for Atmel AT2x (and compatible) I2C/SPI
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EEPROMs.
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config EEPROM_AT24
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bool "Atmel AT24 (and compatible) I2C EEPROM support"
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depends on (I2C && HAS_DTS_I2C)
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select EEPROM_AT2X
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help
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Enable support for Atmel AT24 (and compatible) I2C EEPROMs.
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config EEPROM_AT25
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bool "Atmel AT25 (and compatible) SPI EEPROM support"
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depends on SPI
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select EEPROM_AT2X
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help
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Enable support for Atmel AT25 (and compatible) SPI EEPROMs.
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config EEPROM_AT2X_INIT_PRIORITY
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int "AT2X EEPROM init priority"
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default 75
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depends on EEPROM_AT2X
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source "drivers/eeprom/Kconfig.lpc11u6x"
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source "drivers/eeprom/Kconfig.stm32"
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config EEPROM_SIMULATOR
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bool "Simulated EEPROM driver"
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select STATS
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select STATS_NAMES
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help
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Enable Simulated EEPROM driver.
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config EEPROM_SIMULATOR_SIMULATE_TIMING
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bool "Enable hardware timing simulation"
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depends on EEPROM_SIMULATOR
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help
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Enable Simulated hardware timing.
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if EEPROM_SIMULATOR_SIMULATE_TIMING
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config EEPROM_SIMULATOR_MIN_READ_TIME_US
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int
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prompt "Minimum read time (µS)"
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default 2
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range 1 1000000
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config EEPROM_SIMULATOR_MIN_WRITE_TIME_US
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int
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prompt "Minimum write time (µS)"
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default 100
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range 1 1000000
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endif # EEPROM_SIMULATOR_SIMULATE_TIMING
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endif # EEPROM
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