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/stm32mp1_def.h b/plat/st/stm32mp1/stm32mp1_def.h
index bce5994..ea18a30 100644
--- a/plat/st/stm32mp1/stm32mp1_def.h
+++ b/plat/st/stm32mp1/stm32mp1_def.h
@@ -62,6 +62,9 @@
STM32MP_SYSRAM_SIZE - \
STM32MP_NS_SYSRAM_SIZE)
+#define STM32MP_SCMI_NS_SHM_BASE STM32MP_NS_SYSRAM_BASE
+#define STM32MP_SCMI_NS_SHM_SIZE STM32MP_NS_SYSRAM_SIZE
+
#define STM32MP_SEC_SYSRAM_BASE STM32MP_SYSRAM_BASE
#define STM32MP_SEC_SYSRAM_SIZE (STM32MP_SYSRAM_SIZE - \
STM32MP_NS_SYSRAM_SIZE)