I2C issue on imx6q

[alexisfronteau]

Hi,

I'm using an imx6 conected to a fpga by I2C and i notice a problem. If I read several bytes from fpga, it does not work but if I add a delay in imx-i2c driver between the interrupt of receive data and the read of  I2C_I2DR, I read correct data. Do the interrupt occurs after or before I2C_I2DR register is loaded with received data ?

Thanks

[igorpadykov]

Hi Alexis

to check if that is caused by some issues with operating system delays, one can test

it with baremetal tests :

Github SDK
https://github.com/backenklee/swp-report/tree/master/iMX6_Platform_SDK

Best regards
igor
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