stm32mp1: SCMI clock and reset service in SP_MIN
This change implements platform services for stm32mp1 to expose clock
and reset controllers over SCMI clock and reset domain protocols
in sp_min firmware.
Requests execution use a fastcall SMC context using a SiP function ID.
The setup allows the create SCMI channels by assigning a specific
SiP SMC function ID for each channel/agent identifier defined. In this
change, stm32mp1 exposes a single channel and hence expects single
agent at a time.
The input payload in copied in secure memory before the message
in passed through the SCMI server drivers. BL32/sp_min is invoked
for a single SCMI message processing and always returns with a
synchronous response message passed back to the caller agent.
This change fixes and updates STM32_COMMON_SIP_NUM_CALLS that was
previously wrongly set 4 whereas only 1 SiP SMC function ID was to
be counted. STM32_COMMON_SIP_NUM_CALLS is now set to 3 since the
2 added SiP SMC function IDs for SCMI services.
Change-Id: Icb428775856b9aec00538172aea4cf11e609b033
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
diff --git a/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk b/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
index 7327eef..5d7d495 100644
--- a/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
+++ b/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
@@ -25,9 +25,17 @@
# Generic PSCI
BL32_SOURCES += plat/common/plat_psci_common.c
+# SCMI server drivers
+BL32_SOURCES += drivers/st/scmi-msg/base.c \
+ drivers/st/scmi-msg/clock.c \
+ drivers/st/scmi-msg/entry.c \
+ drivers/st/scmi-msg/reset_domain.c \
+ drivers/st/scmi-msg/smt.c
+
# stm32mp1 specific services
BL32_SOURCES += plat/st/stm32mp1/services/bsec_svc.c \
- plat/st/stm32mp1/services/stm32mp1_svc_setup.c
+ plat/st/stm32mp1/services/stm32mp1_svc_setup.c \
+ plat/st/stm32mp1/stm32mp1_scmi.c
# Arm Archtecture services
BL32_SOURCES += services/arm_arch_svc/arm_arch_svc_setup.c
diff --git a/plat/st/stm32mp1/sp_min/sp_min_setup.c b/plat/st/stm32mp1/sp_min/sp_min_setup.c
index 9b4c2d2..b639fcb 100644
--- a/plat/st/stm32mp1/sp_min/sp_min_setup.c
+++ b/plat/st/stm32mp1/sp_min/sp_min_setup.c
@@ -197,6 +197,8 @@
}
stm32mp_lock_periph_registering();
+
+ stm32mp1_init_scmi_server();
}
void sp_min_plat_arch_setup(void)