From 9647f7feac36cc41c25b852eb8ecdd728b5486d1 Mon Sep 17 00:00:00 2001
From: Thomas Doerfler <Thomas.Doerfler@embedded-brains.de>
Date: Fri, 27 Feb 2009 11:26:44 +0000
Subject: 	* README: Added NCS. 	* Makefile.am, configure.ac,
 preinstall.am: Added BSP variants. 	* console/console-config.c,
 clock/clock-config.c, ssp/ssp.c: Fixed 	register settings.  Cleanup. 
 * include/bsp.h: Added network defines and functions. 	* include/lpc24xx.h:
 Added AHB and EMC defines.  Fixed Ethernet status 	sizes. 	*
 include/system-clocks.h, misc/system-clocks.c: Added micro seconds 	delay
 function that uses Timer 1.  Changed PLL setup. 	* network/network.c,
 startup/bspreset.c, startup/linkcmds.lpc2478, 	startup/linkcmds.lpc2478_ncs,
 startup/linkcmds.lpc2478_ncs_ram: New 	files. 	* startup/bspstart.c: Added
 EMC initialization.  Changes for ROM boot.

---
 c/src/lib/libbsp/arm/shared/start/start.S | 111 +++++++++++++++---------------
 1 file changed, 56 insertions(+), 55 deletions(-)

(limited to 'c/src/lib/libbsp/arm/shared/start/start.S')

diff --git a/c/src/lib/libbsp/arm/shared/start/start.S b/c/src/lib/libbsp/arm/shared/start/start.S
index 2677222ffc..26e5c72747 100644
--- a/c/src/lib/libbsp/arm/shared/start/start.S
+++ b/c/src/lib/libbsp/arm/shared/start/start.S
@@ -27,14 +27,7 @@
 /* Global symbols */
 
 .globl start
-
-.globl Reset_Handler
-.globl Undefined_Handler
 .globl SWI_Handler
-.globl Prefetch_Handler
-.globl Abort_Handler
-.globl IRQ_Handler
-.globl FIQ_Handler
 
 /* Program Status Register definitions */
 
@@ -49,9 +42,61 @@
 .equ PSR_F,          0x40
 .equ PSR_T,          0x20
 
+.section ".entry"
+
+/*
+ * This is the exception vector table and the pointers to the default
+ * exceptions handlers.
+ */
+
+vector_block:
+
+	ldr	pc, handler_addr_reset
+	ldr	pc, handler_addr_undef
+	ldr	pc, handler_addr_swi
+	ldr	pc, handler_addr_prefetch
+	ldr	pc, handler_addr_abort
+
+	/* Program signature checked by boot loader */
+	.word	0xb8a06f58
+
+	ldr	pc, handler_addr_irq
+	ldr	pc, handler_addr_fiq
+
+handler_addr_reset:
+
+	.word	start
+
+handler_addr_undef:
+
+	.word	twiddle
+
+handler_addr_swi:
+
+	.word	twiddle
+
+handler_addr_prefetch:
+
+	.word	twiddle
+
+handler_addr_abort:
+
+	.word	twiddle
+
+handler_addr_reserved:
+
+	.word	twiddle
+
+handler_addr_irq:
+
+	.word	twiddle
+
+handler_addr_fiq:
+
+	.word	twiddle
+
 /* Start entry */
 
-.section ".entry"
 start:
 
         /*
@@ -112,7 +157,7 @@ start:
 	 * vectors and the pointers to the default exception handlers.
          */
 
-	mov	r0, #0
+	ldr	r0, =bsp_section_vector_start
 	adr	r1, vector_block
 	ldmia	r1!, {r2-r9}
 	stmia	r0!, {r2-r9}
@@ -131,52 +176,8 @@ start:
 
         /* Spin forever */
 
-twiddle:
-
-	b	twiddle
-
-/*
- * This is the exception vector table and the pointers to the default
- * exceptions handlers.
- */
-
-vector_block:
-
-	ldr	pc, Reset_Handler
-	ldr	pc, Undefined_Handler
-	ldr	pc, SWI_Handler
-	ldr	pc, Prefetch_Handler
-	ldr	pc, Abort_Handler
-	nop
-	ldr	pc, IRQ_Handler
-	ldr	pc, FIQ_Handler
-
-Reset_Handler:
-
-	b	bsp_reset
-
-Undefined_Handler:
-
-	b	Undefined_Handler
-
 SWI_Handler:
 
-	b	SWI_Handler
-
-Prefetch_Handler:
-
-	b	Prefetch_Handler
-
-Abort_Handler:
-
-	b	Abort_Handler
-
-	nop
-
-IRQ_Handler:
-
-	b	IRQ_Handler
-
-FIQ_Handler:
+twiddle:
 
-	b	FIQ_Handler
+	b	twiddle
-- 
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