Drop support for CONFIG_SYS_ARM_WITHOUT_RELOC

When this define was introduced, the idea was to provide a soft
migration path for ARM boards to get adapted to the new relocation
support.  However, other recent changes led to a different
implementation (ELF relocation), where this no longer works.  By now
CONFIG_SYS_ARM_WITHOUT_RELOC does not only not help any more, but it
actually hurts because it obfuscates the actual code by sprinkling it
with lots of dead and non-working debris.

So let's make a clean cut and drop CONFIG_SYS_ARM_WITHOUT_RELOC.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>

1 files changed, 0 insertions, 105 deletions

diff --git a/arch/arm/cpu/arm720t/start.S b/arch/arm/cpu/arm720t/start.S
index 41c1519..b94ecb4 100644
--- a/arch/arm/cpu/arm720t/start.S
+++ b/arch/arm/cpu/arm720t/start.S
@@ -79,12 +79,6 @@ _fiq:			.word fiq
 _TEXT_BASE:
 	.word	CONFIG_SYS_TEXT_BASE
 
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-.globl _armboot_start
-_armboot_start:
-	.word _start
-#endif
-
 /*
  * These are defined in the board-specific linker script.
  */
@@ -108,7 +102,6 @@ FIQ_STACK_START:
 	.word 0x0badc0de
 #endif
 
-#if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
 /* IRQ stack memory (calculated at run-time) + 8 bytes */
 .globl IRQ_STACK_START_IN
 IRQ_STACK_START_IN:
@@ -264,92 +257,6 @@ clbss_l:str	r2, [r0]		/* clear loop...		    */
 
 _board_init_r: .word board_init_r
 
-#else /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
-
-/*
- * the actual reset code
- */
-
-reset:
-	/*
-	 * set the cpu to SVC32 mode
-	 */
-	mrs	r0,cpsr
-	bic	r0,r0,#0x1f
-	orr	r0,r0,#0x13
-	msr	cpsr,r0
-
-	/*
-	 * we do sys-critical inits only at reboot,
-	 * not when booting from ram!
-	 */
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
-	bl	cpu_init_crit
-#endif
-
-#ifdef CONFIG_LPC2292
-	bl	lowlevel_init
-#endif
-
-#ifndef CONFIG_SKIP_RELOCATE_UBOOT
-relocate:				/* relocate U-Boot to RAM	    */
-	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	    */
-	beq	stack_setup
-
-#if CONFIG_SYS_TEXT_BASE
-#ifndef CONFIG_LPC2292 /* already done in lowlevel_init */
-	ldr	r2, =0x0		/* Relocate the exception vectors   */
-	cmp	r1, r2			/* and associated data to address   */
-	ldmneia r0!, {r3-r10}		/* 0x0. Do nothing if CONFIG_SYS_TEXT_BASE is  */
-	stmneia r2!, {r3-r10}		/* 0x0. Copy the first 15 words.    */
-	ldmneia r0, {r3-r9}
-	stmneia r2, {r3-r9}
-	adrne	r0, _start		/* restore r0			    */
-#endif	/* !CONFIG_LPC2292 */
-#endif
-
-	ldr	r2, _armboot_start
-	ldr	r3, _bss_start
-	sub	r2, r3, r2		/* r2 <- size of armboot	    */
-	add	r2, r0, r2		/* r2 <- source end address	    */
-
-copy_loop:
-	ldmia	r0!, {r3-r10}		/* copy from source address [r0]    */
-	stmia	r1!, {r3-r10}		/* copy to   target address [r1]    */
-	cmp	r0, r2			/* until source end address [r2]    */
-	blo	copy_loop
-
-#endif	/* CONFIG_SKIP_RELOCATE_UBOOT */
-
-	/* Set up the stack						    */
-stack_setup:
-	ldr	r0, _TEXT_BASE		/* upper 128 KiB: relocated uboot   */
-	sub	r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area			    */
-	sub	r0, r0, #GENERATED_GBL_DATA_SIZE /* bdinfo			    */
-#ifdef CONFIG_USE_IRQ
-	sub	r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
-#endif
-	sub	sp, r0, #12		/* leave 3 words for abort-stack    */
-	bic	sp, sp, #7		/* 8-byte alignment for ABI compliance */
-
-clear_bss:
-	ldr	r0, _bss_start		/* find start of bss segment	    */
-	ldr	r1, _bss_end		/* stop here			    */
-	mov	r2, #0x00000000		/* clear			    */
-
-clbss_l:str	r2, [r0]		/* clear loop...		    */
-	add	r0, r0, #4
-	cmp	r0, r1
-	blo	clbss_l
-
-	ldr	pc, _start_armboot
-
-_start_armboot: .word start_armboot
-
-#endif /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
-
 /*
  *************************************************************************
  *
@@ -606,13 +513,7 @@ lock_loop:
 	stmia	sp, {r0 - r12}			@ Calling r0-r12
 	add	r8, sp, #S_PC
 
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-	ldr	r2, _armboot_start
-	sub	r2, r2, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
-	sub	r2, r2, #(GENERATED_GBL_DATA_SIZE+8)	@ set base 2 words into abort stack
-#else
 	ldr	r2, IRQ_STACK_START_IN
-#endif
 	ldmia	r2, {r2 - r4}			@ get pc, cpsr, old_r0
 	add	r0, sp, #S_FRAME_SIZE		@ restore sp_SVC
 
@@ -643,13 +544,7 @@ lock_loop:
 	.endm
 
 	.macro get_bad_stack
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-	ldr	r13, _armboot_start		@ setup our mode stack
-	sub	r13, r13, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
-	sub	r13, r13, #(GENERATED_GBL_DATA_SIZE+8) @ reserved a couple spots in abort stack
-#else
 	ldr	r13, IRQ_STACK_START_IN		@ setup our mode stack
-#endif
 
 	str	lr, [r13]			@ save caller lr / spsr
 	mrs	lr, spsr