Refactor fvp gic code to be a generic driver
Refactor the FVP gic code in plat/fvp/fvp_gic.c to be a generic ARM
GIC driver in drivers/arm/gic/arm_gic.c. Provide the platform
specific inputs in the arm_gic_setup() function so that the driver
has no explicit dependency on platform code.
Provide weak implementations of the platform interrupt controller
API in a new file, plat/common/plat_gic.c. These simply call through
to the ARM GIC driver.
Move the only remaining FVP GIC function, fvp_gic_init() to
plat/fvp/aarch64/fvp_common.c and remove plat/fvp/fvp_gic.c
Fixes ARM-software/tf-issues#182
Change-Id: Iea82fe095fad62dd33ba9efbddd48c57717edd21
diff --git a/plat/fvp/platform.mk b/plat/fvp/platform.mk
index ccd5afb..21ac1e7 100644
--- a/plat/fvp/platform.mk
+++ b/plat/fvp/platform.mk
@@ -69,12 +69,13 @@
plat/fvp/aarch64/fvp_common.c
BL31_SOURCES += drivers/arm/cci400/cci400.c \
+ drivers/arm/gic/arm_gic.c \
drivers/arm/gic/gic_v2.c \
drivers/arm/gic/gic_v3.c \
drivers/arm/tzc400/tzc400.c \
+ plat/common/plat_gic.c \
plat/common/aarch64/platform_mp_stack.S \
plat/fvp/bl31_fvp_setup.c \
- plat/fvp/fvp_gic.c \
plat/fvp/fvp_pm.c \
plat/fvp/fvp_security.c \
plat/fvp/fvp_topology.c \
@@ -82,7 +83,7 @@
plat/fvp/aarch64/fvp_common.c \
plat/fvp/drivers/pwrc/fvp_pwrc.c
-# Flag used by the FVP port to determine the version of ARM GIC architecture
-# to use for interrupt management in EL3.
-FVP_GIC_ARCH := 2
-$(eval $(call add_define,FVP_GIC_ARCH))
+# Flag used by the platform port to determine the version of ARM GIC
+# architecture to use for interrupt management in EL3.
+ARM_GIC_ARCH := 2
+$(eval $(call add_define,ARM_GIC_ARCH))