powerpc: Stack Pointer not properly aligned

The code first aligns the SP to 16 then subtract 8, making it 8 bytes aligned. Furthermore the initial stack frame not quite correct either. Signed-off-by: Joakim Tjernlund <[email protected]> Signed-off-by: Andy Fleming <[email protected]>
aurelianF · Aug 22, 2012 · 7de8a71 · 7de8a71
1 parent 89f4289
commit 7de8a71
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c
@@ -521,9 +521,8 @@ void board_init_f(ulong bootflag)
 	addr_sp -= 16;
 	addr_sp &= ~0xF;
 	s = (ulong *) addr_sp;
-	*s-- = 0;
-	*s-- = 0;
-	addr_sp = (ulong) s;
+	*s = 0; /* Terminate back chain */
+	*++s = 0; /* NULL return address */
 	debug("Stack Pointer at: %08lx\n", addr_sp);
 
 	/*