Attention is currently required from: laforge, tnt.

laforge uploaded patch set #2 to this change.

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fw/e1-tracer: Initialize IDT82V2081 from within firmware in e1d mode

Initially it was a good choice to keep the LIU driver in the host
software (easier debugging/changes).  However, we never really needed it
to do anything but initialization of the LIU.

So in order to avoid having to teach osmo-e1d or other software the
details about the LIU initialization, let's do this from the firmware
*if* the e1d compatible USB configuration is used.

Closes: OS#5733
Change-Id: Id2217ff4573c4eebd816318128f256e85fb3c3bd
---
M firmware/ice40-riscv/e1-tracer/Makefile
A firmware/ice40-riscv/e1-tracer/idt82v2081.c
A firmware/ice40-riscv/e1-tracer/idt82v2081.h
A firmware/ice40-riscv/e1-tracer/idt82v2081_no2spi.c
A firmware/ice40-riscv/e1-tracer/idt82v2081_regs.h
M firmware/ice40-riscv/e1-tracer/usb_e1.c
6 files changed, 314 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-e1-hardware refs/changes/49/29949/2

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