stm32mp1: shared resources: peripheral registering
Define helper functions stm32mp_register_secure_periph() and
stm32mp_register_non_secure_periph() for platform drivers to
register a shared resource assigned to respectively secure
or non-secure world.
Some resources are related to clock resources. When a resource is
registered as secure, ensure its clock dependencies are also
registered as secure. Registering a non-secure resource does not
mandate its clock dependencies are also registered as non-secure.
Change-Id: I74975be8976b8d3bf18dcc807541a072803af6e3
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
diff --git a/plat/st/common/include/stm32mp_shared_resources.h b/plat/st/common/include/stm32mp_shared_resources.h
index b148666..2205936 100644
--- a/plat/st/common/include/stm32mp_shared_resources.h
+++ b/plat/st/common/include/stm32mp_shared_resources.h
@@ -9,13 +9,22 @@
#include <stdbool.h>
+#ifdef STM32MP_SHARED_RESOURCES
+enum stm32mp_shres;
+
/* Return true if @clock_id is shared by secure and non-secure worlds */
bool stm32mp_nsec_can_access_clock(unsigned long clock_id);
/* Return true if and only if @reset_id relates to a non-secure peripheral */
bool stm32mp_nsec_can_access_reset(unsigned int reset_id);
+/* Register a shared resource assigned to the secure world */
+void stm32mp_register_secure_periph(enum stm32mp_shres id);
+
+/* Register a shared resource assigned to the non-secure world */
+void stm32mp_register_non_secure_periph(enum stm32mp_shres id);
+
/* Consolidate peripheral states and lock against new peripheral registering */
void stm32mp_lock_periph_registering(void);
-
+#endif /* STM32MP_SHARED_RESOURCES */
#endif /* STM32MP_SHARED_RESOURCES_H */