imx28 spi-gpio bit bang support

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imx28 spi-gpio bit bang support

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shashikanthirem
Contributor III
i am using linux version  2.6.35.3,  
 
problem now i cannot move to yocto dtsi configuration
so i need to use the exist one
am little bit confuse in adding a spi2 ans chip-select 1 in GPIO bit bang
i could able to see spi gpio probe success , but unable to send and receive via spi dev ioctl, as it always calls the handlers of SPI mxs driver than the spi-gpio driver
Please help me moving ahead. 
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shashikanthirem
Contributor III

Does spidev works only on spi-mxs driver, because if i enable spidev over spi-gpio the kernel doesn't populate /dev/spidevx.x , with disabled kernel config spi-mxs driver

any one has indea ?

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shashikanthirem
Contributor III

hi there any one for experienced ?

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igorpadykov
NXP Employee
NXP Employee

Hi Shashikant

may be helpful overview of i.MX28 spi usage

https://community.nxp.com/thread/316764 

How to enable SPI NOR boot for i.MX28 (Spansion s25fl256s) 

Best regards
igor
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