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i.MX6q Linux SATA problems

Question asked by Joerg Albert on Jun 11, 2019
Latest reply on Oct 12, 2019 by Joerg Albert

We have a custom i.MX6Quad board with a SSD connected via M.2 SATA running a mainline Linux 4.14.x kernel.

Some SSD are not always detected during start. With others we see random CRC errors during read tests.


I know that we can tweak the parameters in IOMUXC_GPR13 via device tree attributes to get a more stable SATA connection.


Is there anything similar to the DDR3 RAM stress test program in order to find the best parameter set?

If not, what is the recommended way to determine these parameters?