juno: Fix bug in plat_get_my_entrypoint
plat_get_my_entrypoint was branching to juno_do_reset_to_aarch_32_state,
which is not supposed to return, and in case of returning it implemented
an infinite loop. The problem was that plat_get_my_entrypoint was using
"b" instead of "bl", so juno_do_reset_to_aarch_32_state was returning to
the caller of plat_get_my_entrypoint instead of stop the system with a
panic.
To avoid this problem juno_do_reset_to_aarch_32_state was modified to
call directly to plat_panic_handler if it tries to return.
Change-Id: I591cf2dd78d27d8568fb15b91366e4b3dce027b5
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
diff --git a/plat/arm/board/juno/aarch64/juno_helpers.S b/plat/arm/board/juno/aarch64/juno_helpers.S
index 5e7f08e..29c2c0a 100644
--- a/plat/arm/board/juno/aarch64/juno_helpers.S
+++ b/plat/arm/board/juno/aarch64/juno_helpers.S
@@ -199,6 +199,7 @@
msr rmr_el3, x0
isb
wfi
+ b plat_panic_handler
endfunc juno_do_reset_to_aarch32_state
/* -----------------------------------------------------
@@ -233,8 +234,6 @@
ldr x0, [x0]
cbz x0, return
b juno_do_reset_to_aarch32_state
-1:
- b 1b
return:
ret
endfunc plat_get_my_entrypoint
@@ -287,9 +286,7 @@
str w1, [x3], #4
str w2, [x3]
- bl juno_do_reset_to_aarch32_state
-1:
- b 1b
+ b juno_do_reset_to_aarch32_state
endfunc juno_reset_to_aarch32_state
#endif /* JUNO_AARCH32_EL3_RUNTIME */
