powerpc/85xx:Fix IVORs addr after vector table relocation

After relocation of vector table in SDRAM's lower address, IVORs value should
be updated with new handler addresses.

As vector tables are relocated to 0x100,0x200... 0xf00 address in DDR.IVORs
are updated with 0x100, 0x200,....f00  hard-coded values.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

arch/powerpc/cpu/mpc85xx/start.S

@@ -1493,6 +1493,39 @@ trap_init:
 	cmplw	0,r7,r8
 	blt	2b
 
+	/* Update IVORs as per relocated vector table address */
+	li	r7,0x0100
+	mtspr	IVOR0,r7	/* 0: Critical input */
+	li	r7,0x0200
+	mtspr	IVOR1,r7	/* 1: Machine check */
+	li	r7,0x0300
+	mtspr	IVOR2,r7	/* 2: Data storage */
+	li	r7,0x0400
+	mtspr	IVOR3,r7	/* 3: Instruction storage */
+	li	r7,0x0500
+	mtspr	IVOR4,r7	/* 4: External interrupt */
+	li	r7,0x0600
+	mtspr	IVOR5,r7	/* 5: Alignment */
+	li	r7,0x0700
+	mtspr	IVOR6,r7	/* 6: Program check */
+	li	r7,0x0800
+	mtspr	IVOR7,r7	/* 7: floating point unavailable */
+	li	r7,0x0900
+	mtspr	IVOR8,r7	/* 8: System call */
+	/* 9: Auxiliary processor unavailable(unsupported) */
+	li	r7,0x0a00
+	mtspr	IVOR10,r7	/* 10: Decrementer */
+	li	r7,0x0b00
+	mtspr	IVOR11,r7	/* 11: Interval timer */
+	li	r7,0x0c00
+	mtspr	IVOR12,r7	/* 12: Watchdog timer */
+	li	r7,0x0d00
+	mtspr	IVOR13,r7	/* 13: Data TLB error */
+	li	r7,0x0e00
+	mtspr	IVOR14,r7	/* 14: Instruction TLB error */
+	li	r7,0x0f00
+	mtspr	IVOR15,r7	/* 15: Debug */
+
 	lis	r7,0x0
 	mtspr	IVPR,r7