We're trying to bring up above mentioned version with a custom i.MX7S board. After fixing base device trees it boots until we load imx-sdma driver. Mainline 4.14.y works without problems.
Any idea where to look further?
Thanks in advance
Please try to compile sdma driver as kernel module instead of adding it into the kernel.
We use IMX_SDMA as module . (SDMA error in serial ports (sumo-4.14.78-1.0.0_ga)
It only hangs with I.MX7S on your sumo-4.14.78-1.0.0_ga.With I.MX7D on our board we can load the imx-sdma module.
If we checkout mainline 4.14.78 version of drivers/dma/imx-sdma.c we have the same problem. But if we use mainline 4.14.78 and checkout the NXP rel_imx_4.14.78_1.0.0_ga version of drivers/dma/imx-sdma.c (drivers/dma/Kconfig, drivers/dma/virt-dma.c, drivers/dma/pxp/Kconfig and include/linux/dmaengine.h), we can load the module imx-sdma.
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