On Wed, 9 Sep 2020 at 10:44, Etienne Carriere etienne.carriere@linaro.org wrote:
This change implements a mailbox transport using SMT format for SCMI exchanges. This implementation follows the Linux kernel and SCP-firmware [1] as references implementation for SCMI message processing using SMT format for communication channel meta-data.
Use of mailboxes in SCMI FDT bindings are defined in the Linux kernel DT bindings since v4.17.
Links: [1] https://github.com/ARM-software/SCP-firmware Signed-off-by: Etienne Carriere etienne.carriere@linaro.org Cc: Simon Glass sjg@chromium.org Cc: Peng Fan peng.fan@nxp.com Cc: Sudeep Holla sudeep.holla@arm.com
Changes in v4:
- Replace __arm__ with CONFIG_ARM.
- Remove cast for priv reference hence remove helper scmi_mbox_get_priv().
Changes in v3:
- This is a followup of the SCMI agent patches posted in https://patchwork.ozlabs.org/project/uboot/list/?series=196253 The v3 splits commits and introduces a new uclass as requested.
- This patch implements the same mailbox SCMI agent proposed in v2 but split over few source files.
drivers/firmware/scmi/Kconfig | 6 +- drivers/firmware/scmi/Makefile | 2 + drivers/firmware/scmi/mailbox_agent.c | 102 +++++++++++++++++++ drivers/firmware/scmi/smt.c | 139 ++++++++++++++++++++++++++ drivers/firmware/scmi/smt.h | 86 ++++++++++++++++ 5 files changed, 333 insertions(+), 2 deletions(-) create mode 100644 drivers/firmware/scmi/mailbox_agent.c create mode 100644 drivers/firmware/scmi/smt.c create mode 100644 drivers/firmware/scmi/smt.h
Reviewed-by: Simon Glass sjg@chromium.org