This patch series allows users to access SCMI base protocol provided by SCMI server (platform). See SCMI specification document v3.2 beta[1] for more details about SCMI base protocol.
What is currently not implemented is - SCMI_BASE_NOTIFY_ERRORS command and notification callback mechanism
This feature won't be very useful in the current U-Boot environment.
[1] https://developer.arm.com/documentation/den0056/e/?lang=en
Test ==== The patch series was tested on the following platforms: * sandbox * qemu-arm64 with OPTEE as SCMI server * confirmed CI check (pull request #439)
Prerequisite: ============= * This patch series is based on v2023.10.
Patches: ======== Patch#1-#6: refactoring & bug fix Patch#7-#9,#11: Add SCMI base protocol driver Patch#10,#12-#13: Add SCMI base protocol device unit test Patch#14: add a protocol sanity check
Change history: =============== v6 (Oct 11, 2023) * shuffle the order of patches to fix a bisect error (No change on the code) * drop scmi command which was intended to be used for debugging * add patch#8 (version check)
v5 (sep 26, 2023) * fix a per_child_auto size (patch#1) * fix an existing bug (not using a protocol's channel) (patch#2-#4)
v4 (Sep 12, 2023) * shuffle the patch order (patch#5,6 prior to patch#7) * several improvements/cleanup thanks to Etienne (Each commit message has more details.)
v3 (Sep 8, 2023) * import patch#6 (protocol availability check) from my followup patch * fix an issue on ST board (reported by Etienne) (patch#1) * minor code improvements * fix various typos pointed out by Etienne * revise function descriptions/comments (Each commit message has more details.)
v2 (Jul, 26, 2023) * refactor devm_scmi_of_get_channel()/process_msg(), removing uses of ops (patch#1) * use helper functions, removing uses of ops (patch#2,#9,#10) * add more descriptions in scmi command doc (patch#11) * remove 'scmi base' sub-command (patch#10,#12)
v1 (Jun, 28, 2023) * initial release
AKASHI Takahiro (14): scmi: refactor the code to hide a channel from devices firmware: scmi: use a protocol's own channel if assigned firmware: scmi: support dummy channels for sandbox agent firmware: scmi: move scmi_bind_protocols() backward firmware: scmi: framework for installing additional protocols test: dm: add protocol-specific channel test firmware: scmi: implement SCMI base protocol firmware: scmi: add a version check against base protocol firmware: scmi: fake base protocol commands on sandbox test: dm: simplify SCMI unit test on sandbox firmware: scmi: install base protocol to SCMI agent sandbox: remove SCMI base node definition from test.dts test: dm: add SCMI base protocol test firmware: scmi: add a check against availability of protocols
arch/sandbox/dts/test.dts | 5 +- arch/sandbox/include/asm/scmi_test.h | 19 +- drivers/clk/clk_scmi.c | 27 +- drivers/firmware/scmi/Makefile | 1 + drivers/firmware/scmi/base.c | 664 +++++++++++++++++++++ drivers/firmware/scmi/mailbox_agent.c | 5 +- drivers/firmware/scmi/optee_agent.c | 5 +- drivers/firmware/scmi/sandbox-scmi_agent.c | 469 ++++++++++++++- drivers/firmware/scmi/scmi_agent-uclass.c | 412 +++++++++++-- drivers/firmware/scmi/smccc_agent.c | 5 +- drivers/power/regulator/scmi_regulator.c | 26 +- drivers/reset/reset-scmi.c | 19 +- include/dm/uclass-id.h | 1 + include/scmi_agent-uclass.h | 89 ++- include/scmi_agent.h | 29 +- include/scmi_protocols.h | 495 +++++++++++++++ test/dm/scmi.c | 195 ++++-- 17 files changed, 2262 insertions(+), 204 deletions(-) create mode 100644 drivers/firmware/scmi/base.c