atj213x: obtain PC value in more elegant way

Change-Id: I2e6ffb3b58ddda0ea62ce5d4cd71ac5475b34495

1 files changed, 6 insertions, 7 deletions

diff --git a/utils/atj2137/adfuload/test_binary/backlight_c/crt0.S b/utils/atj2137/adfuload/test_binary/backlight_c/crt0.S
index e3817fcfb7..e03b8b5439 100644
--- a/utils/atj2137/adfuload/test_binary/backlight_c/crt0.S
+++ b/utils/atj2137/adfuload/test_binary/backlight_c/crt0.S
@@ -11,9 +11,13 @@
 
 start:
     di                         # disable interrupts
-    bal get_pc                 # v0 = PC + 8 actually
+    bltzal zero, load_addr     # ra = PC + 8, branch not taken
     nop
-    addiu v0, -12              # calc real load address
+
+load_addr:
+    addiu v0, ra, -12          # calc real load address
+                               # account for branch delay slot
+                               # and very first 'di' instruction
     la t0, relocstart
     la t1, relocend
     beq t0, v0, entry_point    # no relocation needed
@@ -31,11 +35,6 @@ entry_point_jump:
     jr t0
     nop
 
-get_pc:
-    move v0, ra
-    jr ra
-    nop
-
 entry_point:
     # setup caches
     # 4-way, 256 sets, 16 bytes cacheline I/D