ARM1136: Introduce CONFIG_PRELOADER macro.

Currently CONFIG_ONENAND_IPL is used in a number of #ifdef's
in start.S. In preparation for adding support for NAND SPL
the macro CONFIG_PRELOADER is introducted and replaces the
CONFIG_ONENAND_IPL in start.S.

Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>

cpu/arm1136/start.S

diff --git a/cpu/arm1136/start.S b/cpu/arm1136/start.S
index 999b184..28cb5fd 100644
--- a/cpu/arm1136/start.S
+++ b/cpu/arm1136/start.S
@@ -32,7 +32,7 @@
 #include <version.h>
 .globl _start
 _start: b	reset
-#ifdef CONFIG_ONENAND_IPL
+#ifdef CONFIG_PRELOADER
 	ldr	pc, _hang
 	ldr	pc, _hang
 	ldr	pc, _hang
@@ -67,7 +67,7 @@
 _irq:			.word irq
 _fiq:			.word fiq
 _pad:			.word 0x12345678 /* now 16*4=64 */
-#endif	/* CONFIG_ONENAND_IPL */
+#endif	/* CONFIG_PRELOADER */
 .global _end_vect
 _end_vect:
 
@@ -156,9 +156,9 @@
 	adr	r0, _start		/* r0 <- current position of code   */
 	ldr	r1, _TEXT_BASE		/* test if we run from flash or RAM */
 	cmp	r0, r1			/* don't reloc during debug	    */
-#ifndef CONFIG_ONENAND_IPL
+#ifndef CONFIG_PRELOADER
 	beq	stack_setup
-#endif	/* CONFIG_ONENAND_IPL */
+#endif	/* CONFIG_PRELOADER */
 
 	ldr	r2, _armboot_start
 	ldr	r3, _bss_start
@@ -175,7 +175,7 @@
 	/* Set up the stack						    */
 stack_setup:
 	ldr	r0, _TEXT_BASE		/* upper 128 KiB: relocated uboot   */
-#ifdef CONFIG_ONENAND_IPL
+#ifdef CONFIG_PRELOADER
 	sub	sp, r0, #128		/* leave 32 words for abort-stack   */
 #else
 	sub	r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area			    */
@@ -184,14 +184,14 @@
 	sub	r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
 #endif
 	sub	sp, r0, #12		/* leave 3 words for abort-stack    */
-#endif	/* CONFIG_ONENAND_IPL */
+#endif	/* CONFIG_PRELOADER */
 
 clear_bss:
 	ldr	r0, _bss_start		/* find start of bss segment	    */
 	ldr	r1, _bss_end		/* stop here			    */
 	mov	r2, #0x00000000		/* clear			    */
 
-#ifndef CONFIG_ONENAND_IPL
+#ifndef CONFIG_PRELOADER
 clbss_l:str	r2, [r0]		/* clear loop...		    */
 	add	r0, r0, #4
 	cmp	r0, r1
@@ -244,7 +244,7 @@
 	mov	lr, ip		/* restore link */
 	mov	pc, lr		/* back to my caller */
 
-#ifndef CONFIG_ONENAND_IPL
+#ifndef CONFIG_PRELOADER
 /*
  *************************************************************************
  *
@@ -357,17 +357,17 @@
 	.macro get_fiq_stack			@ setup FIQ stack
 	ldr	sp, FIQ_STACK_START
 	.endm
-#endif	/* CONFIG_ONENAND_IPL */
+#endif	/* CONFIG_PRELOADER */
 
 /*
  * exception handlers
  */
-#ifdef CONFIG_ONENAND_IPL
+#ifdef CONFIG_PRELOADER
 	.align	5
 do_hang:
 	ldr	sp, _TEXT_BASE			/* use 32 words about stack */
 	bl	hang				/* hang and never return */
-#else	/* !CONFIG_ONENAND IPL */
+#else	/* !CONFIG_PRELOADER */
 	.align	5
 undefined_instruction:
 	get_bad_stack
@@ -435,4 +435,4 @@
 arm1136_cache_flush:
 		mcr	p15, 0, r1, c7, c5, 0	@ invalidate I cache
 		mov	pc, lr			@ back to caller
-#endif	/* CONFIG_ONENAND_IPL */
+#endif	/* CONFIG_PRELOADER */