[Blackfin] arch: kill section mismatch warnings

Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
index 74fe258..46222a7 100644
--- a/arch/blackfin/mach-bf548/head.S
+++ b/arch/blackfin/mach-bf548/head.S
@@ -28,6 +28,7 @@
  */
 
 #include <linux/linkage.h>
+#include <linux/init.h>
 #include <asm/blackfin.h>
 #include <asm/trace.h>
 #if CONFIG_BFIN_KERNEL_CLOCK
@@ -44,10 +45,9 @@
 
 #define INITIAL_STACK   0xFFB01000
 
-.text
+__INIT
 
 ENTRY(__start)
-ENTRY(__stext)
 	/* R0: argument of command line string, passed from uboot, save it */
 	R7 = R0;
 	/* Enable Cycle Counter and Nesting Of Interrupts */
@@ -213,6 +213,7 @@
 
 .LWAIT_HERE:
 	jump .LWAIT_HERE;
+ENDPROC(__start)
 
 ENTRY(_real_start)
 	[ -- sp ] = reti;
@@ -285,6 +286,9 @@
 	call _start_kernel;
 .L_exit:
 	jump.s	.L_exit;
+ENDPROC(_real_start)
+
+__FINIT
 
 .section .l1.text
 #if CONFIG_BFIN_KERNEL_CLOCK
@@ -450,6 +454,7 @@
 	SSYNC;
 
 	RTS;
+ENDPROC(_start_dma_code)
 #endif /* CONFIG_BFIN_KERNEL_CLOCK */
 
 .data