PPC: 85xx: Remove IVOR reset

There is no need to set IVORs to anything but their default values,
so let's leave them where they are.

Suggested-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Scott Wood <scottwood@freescale.com>
[York Sun: Add back $(obj)start.S section in mpc8572ds/Makefile]
Reviewed-by: York Sun <yorksun@freescale.com>

arch/powerpc/cpu/mpc85xx/cpu_init.c

@@ -767,8 +767,6 @@ skip_l2:
 	return 0;
 }
 
-extern void setup_ivors(void);
-
 void arch_preboot_os(void)
 {
 	u32 msr;
@@ -781,8 +779,6 @@ void arch_preboot_os(void)
 	msr = mfmsr();
 	msr &= ~(MSR_ME|MSR_CE);
 	mtmsr(msr);
-
-	setup_ivors();
 }
 
 #if defined(CONFIG_CMD_SATA) && defined(CONFIG_FSL_SATA)

arch/powerpc/cpu/mpc85xx/fixed_ivor.S

@@ -1,63 +0,0 @@
-/*
- * Copyright 2009 Freescale Semiconductor, Inc.
- *
- * Kumar Gala <kumar.gala@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/* This file is intended to be included by other asm code since
- * we will want to execute this on both the primary core when
- * it does a bootm and the secondary core's that get released
- * out of the spin table */
-
-#define SET_IVOR(vector_number, vector_offset)	\
-	li	r3,vector_offset@l; 		\
-	mtspr	SPRN_IVOR##vector_number,r3;
-
-#define SET_GIVOR(vector_number, vector_offset)	\
-	li	r3,vector_offset@l; 		\
-	mtspr	SPRN_GIVOR##vector_number,r3;
-
-	SET_IVOR(0, 0x020) /* Critical Input */
-	SET_IVOR(1, 0x000) /* Machine Check */
-	SET_IVOR(2, 0x060) /* Data Storage */
-	SET_IVOR(3, 0x080) /* Instruction Storage */
-	SET_IVOR(4, 0x0a0) /* External Input */
-	SET_IVOR(5, 0x0c0) /* Alignment */
-	SET_IVOR(6, 0x0e0) /* Program */
-	SET_IVOR(7, 0x100) /* FP Unavailable */
-	SET_IVOR(8, 0x120) /* System Call */
-	SET_IVOR(9, 0x140) /* Auxiliary Processor Unavailable */
-	SET_IVOR(10, 0x160) /* Decrementer */
-	SET_IVOR(11, 0x180) /* Fixed Interval Timer */
-	SET_IVOR(12, 0x1a0) /* Watchdog Timer */
-	SET_IVOR(13, 0x1c0) /* Data TLB Error */
-	SET_IVOR(14, 0x1e0) /* Instruction TLB Error */
-	SET_IVOR(15, 0x040) /* Debug */
-
-/* e500v1 & e500v2 only */
-#ifndef CONFIG_E500MC
-	SET_IVOR(32, 0x200) /* SPE Unavailable */
-	SET_IVOR(33, 0x220) /* Embedded FP Data */
-	SET_IVOR(34, 0x240) /* Embedded FP Round */
-#endif
-
-	SET_IVOR(35, 0x260) /* Performance monitor */
-
-/* e500mc only */
-#ifdef CONFIG_E500MC
-	SET_IVOR(36, 0x280) /* Processor doorbell */
-	SET_IVOR(37, 0x2a0) /* Processor doorbell critical */
-	SET_IVOR(38, 0x2c0) /* Guest Processor doorbell */
-	SET_IVOR(39, 0x2e0) /* Guest Processor critical & machine check */
-	SET_IVOR(40, 0x300) /* Hypervisor system call */
-	SET_IVOR(41, 0x320) /* Hypervisor Priviledge */
-
-	SET_GIVOR(2, 0x060) /* Guest Data Storage */
-	SET_GIVOR(3, 0x080) /* Guest Instruction Storage */
-	SET_GIVOR(4, 0x0a0) /* Guest External Input */
-	SET_GIVOR(8, 0x120) /* Guest System Call */
-	SET_GIVOR(13, 0x1c0) /* Guest Data TLB Error */
-	SET_GIVOR(14, 0x1e0) /* Guest Instruction TLB Error */
-#endif

arch/powerpc/cpu/mpc85xx/release.S

@@ -405,9 +405,6 @@ __second_half_boot_page:
 	bne	3b
 	isync
 
-	/* setup IVORs to match fixed offsets */
-#include "fixed_ivor.S"
-
 	/* get the upper bits of the addr */
 	lwz	r11,ENTRY_ADDR_UPPER(r10)
 

arch/powerpc/cpu/mpc85xx/start.S

@@ -1965,10 +1965,4 @@ flush_dcache:
 	isync
 
 	blr
-
-.globl setup_ivors
-setup_ivors:
-
-#include "fixed_ivor.S"
-	blr
 #endif /* !MINIMAL_SPL */

nand_spl/board/freescale/mpc8536ds/Makefile

@@ -78,11 +78,7 @@ $(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
-$(obj)/fixed_ivor.S:
+$(obj)/start.S:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
-
-$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@
 

nand_spl/board/freescale/mpc8569mds/Makefile

@@ -78,11 +78,7 @@ $(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
-$(obj)/fixed_ivor.S:
+$(obj)/start.S:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
-
-$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@
 

nand_spl/board/freescale/mpc8572ds/Makefile

@@ -78,11 +78,7 @@ $(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
-$(obj)/fixed_ivor.S:
+$(obj)/start.S:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
-
-$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@
 

nand_spl/board/freescale/p1023rds/Makefile

@@ -74,11 +74,7 @@ $(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
-$(obj)/fixed_ivor.S:
+$(obj)/start.S:
-	@rm -f $@
-	ln -sf $(srctree)/$(CPUDIR)/fixed_ivor.S $@
-
-$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(srctree)/$(CPUDIR)/start.S $@
 

nand_spl/board/freescale/p1_p2_rdb/Makefile

@@ -78,11 +78,7 @@ $(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
-$(obj)/fixed_ivor.S:
+$(obj)/start.S:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
-
-$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@