• Achin Gupta's avatar
    Use secure timer to generate S-EL1 interrupts · 31b57b7e
    Achin Gupta authored
    This patch adds support in the TSP to program the secure physical
    generic timer to generate a EL-1 interrupt every half second. It also
    adds support for maintaining the timer state across power management
    operations. The TSPD ensures that S-EL1 can access the timer by
    programming the SCR_EL3.ST bit.
    
    This patch does not actually enable the timer. This will be done in a
    subsequent patch once the complete framework for handling S-EL1
    interrupts is in place.
    
    Change-Id: I1b3985cfb50262f60824be3a51c6314ce90571bc
    31b57b7e
tsp.mk 2.07 KB
#
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BL32_SOURCES		+=	bl32/tsp/tsp_main.c			\
				bl32/tsp/aarch64/tsp_entrypoint.S	\
				bl32/tsp/aarch64/tsp_request.S		\
				common/aarch64/early_exceptions.S	\
				lib/locks/exclusive/spinlock.S		\
				bl32/tsp/tsp_timer.c

BL32_LINKERFILE		:=	bl32/tsp/tsp.ld.S

# Include the platform-specific TSP Makefile
# If no platform-specific TSP Makefile exists, it means TSP is not supported
# on this platform.
TSP_PLAT_MAKEFILE := bl32/tsp/tsp-${PLAT}.mk
ifeq (,$(wildcard ${TSP_PLAT_MAKEFILE}))
  $(error TSP is not supported on platform ${PLAT})
else
  include ${TSP_PLAT_MAKEFILE}
endif