rcar-gen3: control RPC hyper-flash access
RCAR_RPC_HYPERFLASH_LOCKED can be set to 0 as a build option if the
user needs to allow u-boot to reprogram the ATF firmware using a FIP
image (as a faster alternative of toggling numerous DIP switches on
the board and using ascii-xfer of srec files)
The code being controlled with this commit should only be re-enabled for
debugging (_never_ on a product release)
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez.ortiz@gmail.com>
diff --git a/plat/renesas/rcar/platform.mk b/plat/renesas/rcar/platform.mk
index 95b7902..f7d6216 100644
--- a/plat/renesas/rcar/platform.mk
+++ b/plat/renesas/rcar/platform.mk
@@ -137,6 +137,13 @@
$(eval $(call add_define,RCAR_LSI))
endif
+# lock RPC HYPERFLASH access by default
+# unlock to repogram the ATF firmware from u-boot
+ifndef RCAR_RPC_HYPERFLASH_LOCKED
+RCAR_RPC_HYPERFLASH_LOCKED := 1
+endif
+$(eval $(call add_define,RCAR_RPC_HYPERFLASH_LOCKED))
+
# Process RCAR_SECURE_BOOT flag
ifndef RCAR_SECURE_BOOT
RCAR_SECURE_BOOT := 1