CODEWITHSUNDEEP
linuxlinux-kernellinux-device-driverembedded-linuxdevice-driver
bataliero1234
bataliero1234

Reputation: 165

linux spi driver CONFIG

am new in linux and kernel compiling. I would like to add SPI support in my device - its stm32f429-disco evaluation board with LCD. I have found whole project here: https://github.com/jserv/stm32f429-linux-builder, compiled it and it works ( kernel source is https://github.com/robutest/uclinux ), but I don't know how to set CONFIG_STM32_SPI1 flag ( https://github.com/robutest/uclinux/blob/master/arch/arm/mach-stm32/spi.c line:45 ) in https://github.com/jserv/stm32f429-linux-builder/blob/master/configs/kernel_config.

I've checked https://github.com/robutest/uclinux/blob/master/arch/arm/mach-stm32/Kconfig and https://github.com/robutest/uclinux/blob/master/arch/arm/mach-stm32/Makefile and config flags looks ok. Adding manually CONFIG_SPI_STM32 and CONFIG_STM32_SPI1 to "kernel_config" doesn't work. Compiler removes both flags from this file.

Why CONFIG_STM32_SPIx and CONFIG_SPI_STM32 entries are not even visible like other entries "# CONFIG_STM32_USART1 is not set" in the original "kernel_config" file ( I also can't find STM32-SPI in 'make menuconfig' )?

Upvotes: 0

Views: 1239

Answers (1)

0andriy
0andriy

Reputation: 4709

From what you provide I suggest to add to your defconfig, namely kernel_config file from project you are using:

CONFIG_SPI=y

CONFIG_SPI_STM32=y

CONFIG_STM32_SPI1=y

Upvotes: 1

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