Moving to the Murata forum, adding the Murata technical team:
I thought Murata only offered the 1DX as part of the i.MX6 platform with Linux drivers integrated into the Freescale Linux distribution
The specified item was not found.
Sorry, I could solve this problem.
I had a mistake in implementation of CMD53 processing. Downloading firmware is completed successfully,
But I'm faced with another problem. I will post an another question about it.