diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S
index bf2f52a..b9a4cb5 100644
--- a/arch/powerpc/cpu/mpc85xx/start.S
+++ b/arch/powerpc/cpu/mpc85xx/start.S
@@ -256,8 +256,8 @@ l2_disabled:
 	mtspr	IVOR0,r4	/* 0: Critical input */
 	li	r4,MachineCheck@l
 	mtspr	IVOR1,r4	/* 1: Machine check */
-	//li	r4,DataStorage@l
-	//mtspr	IVOR2,r4	/* 2: Data storage */
+	li	r4,DataStorage@l
+	mtspr	IVOR2,r4	/* 2: Data storage */
 	li	r4,InstStorage@l
 	mtspr	IVOR3,r4	/* 3: Instruction storage */
 	li	r4,ExtInterrupt@l
@@ -1247,7 +1247,7 @@ _start_of_vectors:
 	MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException)
 
 /* Data Storage exception. */
-	//STD_EXCEPTION(0x0300, DataStorage, UnknownException)
+	STD_EXCEPTION(0x0300, DataStorage, UnknownException)
 
 /* Instruction Storage exception. */
 	STD_EXCEPTION(0x0400, InstStorage, UnknownException)
@@ -1750,8 +1750,8 @@ trap_init:
 	mtspr	IVOR0,r4	/* 0: Critical input */
 	lwz	r4,MachineCheck@got(r12)
 	mtspr	IVOR1,r4	/* 1: Machine check */
-	//lwz	r4,DataStorage@got(r12)
-	//mtspr	IVOR2,r4	/* 2: Data storage */
+	lwz	r4,DataStorage@got(r12)
+	mtspr	IVOR2,r4	/* 2: Data storage */
 	lwz	r4,InstStorage@got(r12)
 	mtspr	IVOR3,r4	/* 3: Instruction storage */
 	lwz	r4,ExtInterrupt@got(r12)