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Jaska Uimonen e9cfb64f0d zephyr: cavs: use zephyr pm, clk and dma glue 
Start using zephyr pm_runtime, clk and dma glue code in cavs25 native
drivers build. Move the files from ace/lib into zephyr/lib.

Also update west.yaml to related zephyr commit as power related
files have been moved to zephyr side.

Signed-off-by: Jaska Uimonen <jaska.uimonen@intel.com>
 		2023-03-27 12:37:26 +03:00
..
include clock: replace per-clock locks with a global one 2023-03-07 13:37:56 +02:00
lib zephyr: cavs: use zephyr pm, clk and dma glue 2023-03-27 12:37:26 +03:00
scripts .github/zephyr: compare Windows and Linux builds 2023-01-23 19:28:51 +02:00
CMakeLists.txt zephyr: cavs: use zephyr pm, clk and dma glue 2023-03-27 12:37:26 +03:00
FindZephyr-sdk.cmake .github: de-hardcode zephyr SDK version in sparse build 2022-10-10 11:29:05 +01:00
Kconfig kconfig: add DP_SCHEDULER kconfig def 2023-03-14 14:00:28 +00:00
README zephyr: replace obsolete README section with link to sof-docs 2022-02-07 10:43:28 +00:00
docker-build.sh zephyr/docker-build.sh: upgrade CMake to 3.21 or above 2022-12-16 15:19:44 -08:00
docker-run.sh zephyr/docker-run.sh: hardcode zephyr-build img to Zephyr SDK 0.15.2 2023-03-13 21:59:42 +00:00
edf_schedule.c schedule: remove schedule_task_complete() 2023-03-06 12:14:14 +00:00
lib.c zephyr: Add zephyr lib.c standalone file 2022-11-11 15:57:50 +02:00
module.yml zephyr: module: point to where the app is 2022-07-18 14:22:01 +01:00
schedule.c header: rtos: use rtos specific version of alloc.h 2022-09-12 11:44:27 +01:00
wrapper.c ams: Add initial AMS implementation 2023-02-28 09:10:29 +01:00

README 

SOF with Zephyr RTOS
====================

SOF currently uses the Cadence Xtos/HAL and it's own kernel functions as
its RTOS. SOF is moving to use Zephyr as it's RTOS in parallel to current
releases using xtos.

The initial "alpha" of SOF on Zephyr will use the Zephyr RTOS for boot, IRQs,
scheduling and memory allocation. Subsequent release will use more Zephyr
functionality as code is moved from SOF to Zephyr (i.e. EDF scheduler updates
copied from SOF to Zephyr).

Building SOF on Zephyr
======================

Section promoted to
https://thesofproject.github.io/latest/getting_started/build-guide/build-with-zephyr.html

Testing on Qemu
===============

Get the SOF qemu sof-v4.2 branch here.

git@github.com:thesofproject/qemu.git

Configure as

./configure' '--prefix=.' '--target-list=xtensa-softmmu,x86_64-softmmu' \
             '--enable-gtk' '--enable-sdl' '--enable-spice' \
             '--audio-drv-list=alsa' '--enable-libusb' \
             '--enable-usb-redir' '--enable-coroutine-pool' \
             '--disable-opengl' '--enable-fdt'

 Then run make.

FW can be tested as follows using the qemu helper script.

 ./xtensa-host.sh apl \
     -r ../../sof/sof/build_apl_gcc/src/arch/xtensa/rom-apl.bin \
     -k ../../zephyrproject/zephyr/build/zephyr/zephyr.ri

Where -r and -k are used to specify the ROM and kernel files.

The ROMS can be built from the SOF repo by running

./scripts/xtensa-build-all.sh  -r -a

Using console
-------------

Using logging and simulator backend with processing printk (LOG_PRINTK)
can bring console in qemu.

 - Enable xtensa simulator logging backend (LOG_BACKEND_XTENSA_SIM).
 - Enable printk processing(LOG_PRINTK)
 - Add "-semihosting" to qemu command line. Make sure it goes through scripts to real qemu.