RE: Any example command lines for the RaspberryPi Models

[Andrew Baumann]

> From: Alex Bennée <alex.bennee@linaro.org>
>
> Someone was asking on IRC earlier and I realised we don't give any examples
> in the documentation of how to attach block devices. I found a reference in
> an out-of-tree repo that mentioned -sd which seems right but I assume you
> must be able to use -device sd-card as well?
> 
> Could we document some of the common boot examples in
> docs/system/arm/raspi.rst please?

All the examples I have used -sd. Here's an invocation that worked back in 
2016/17 (sorry I know this is not terribly helpful):

  qemu-system-arm -M raspi2 -kernel raspbian-boot/kernel7.img -sd
  2015-09-24-raspbian-jessie.vhd -append "rw earlyprintk loglevel=8
  console=ttyAMA0 root=/dev/mmcblk0p2 rootwait" -serial stdio

Unfortunately I have not been keeping track of raspi support in QEMU. I'll send 
a patch to remove myself from MAINTAINERS.

Andrew