SPI Configuration

[deepanrajanbara]

Hi,

I am new to Linux and i wanted to configure SPI3 not as NOR-FLASH but just configure it for testing camera working in our iMx6 SBC .But i am not sure how to configure SPI3 in our board in both u-boot level and Kernel level .So can some one help me to configure SPI3(not as NOR-FLASH). Is there any manual on how to configure SPI and i am not sure of the GPIO pins which are available in order to configure SPI3.

Thank you,

Deepanraj.A

[igorpadykov]

Hi Deepanraj

you can remove SPI NOR flash driver just removing its driver from build,

check Chapter 26 SPI NOR Flash Memory Technology Device (MTD)

Driver in i.MX_6Dual6Quad_Linux_Reference_Manual.pdf  L3.0.35_4.1.0_LINUX_DOCS

I believe that there are no full spi codes for communication with other than SPI-NOR

devices in i.MX6 Uboot/Linux, so I would suggest to look for spi devices codes for Uboot/Linux

in i.MX51 EVK MC13982 software. MC13892 uses spi for communication with i.MX51.

Both processors i.MX51 and i.MX6 have similar spi modules. Please check

Chapter 3 MC13892 Regulator Driver in mx51_linux.pdf IMX51_ER1011_LINUXDOCS_BUNDLE

L2.6.35_10.11_ER_SOURCE : Linux 2.6.35 Source Code Files

Also it may be useful to look below

https://www.kernel.org/doc/Documentation/spi/

For using interface with camera one can check how i2c is used with camera,

and replace it with spi codes, check sect.20.5 Using the I2C Interface MX53UG

Best regards

igor

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