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, 113 deletions

diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index bdf2fad..4a0710c 100644
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -70,12 +70,6 @@ _end_vect:
 _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.
  */
@@ -99,7 +93,6 @@ 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:
@@ -295,94 +288,6 @@ _rel_dyn_end_ofs:
 _dynsym_start_ofs:
 	.word __dynsym_start - _start
 
-#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, #0xd3
-	msr	cpsr,r0
-
-#if (CONFIG_OMAP34XX)
-	/* Copy vectors to mask ROM indirect addr */
-	adr	r0, _start		@ r0 <- current position of code
-	add	r0, r0, #4		@ skip reset vector
-	mov	r2, #64			@ r2 <- size to copy
-	add	r2, r0, r2		@ r2 <- source end address
-	mov	r1, #SRAM_OFFSET0	@ build vect addr
-	mov	r3, #SRAM_OFFSET1
-	add	r1, r1, r3
-	mov	r3, #SRAM_OFFSET2
-	add	r1, r1, r3
-next:
-	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]
-	bne	next			@ loop until equal */
-#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_ONENAND_BOOT)
-	/* No need to copy/exec the clock code - DPLL adjust already done
-	 * in NAND/oneNAND Boot.
-	 */
-	bl	cpy_clk_code		@ put dpll adjust code behind vectors
-#endif /* NAND Boot */
-#endif
-	/* the mask ROM code should have PLL and others stable */
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
-	bl	cpu_init_crit
-#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
-
-	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:				@ copy 32 bytes at a time
-	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 (if any). Is below tx (watch load addr - need space) */
-clear_bss:
-	ldr	r0, _bss_start		@ find start of bss segment
-	ldr	r1, _bss_end		@ stop here
-	mov	r2, #0x00000000		@ clear value
-clbss_l:
-	str	r2, [r0]		@ clear BSS location
-	cmp	r0, r1			@ are we at the end yet
-	add	r0, r0, #4		@ increment clear index pointer
-	bne	clbss_l			@ keep clearing till at end
-
-	ldr	pc, _start_armboot	@ jump to C code
-
-_start_armboot: .word start_armboot
-#endif /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
-
 /*************************************************************************
  *
  * CPU_init_critical registers
@@ -464,14 +369,8 @@ cpu_init_crit:
 						@ user stack
 	stmia	sp, {r0 - r12}			@ Save user registers (now in
 						@ svc mode) r0-r12
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-	ldr	r2, _armboot_start
-	sub	r2, r2, #(CONFIG_SYS_MALLOC_LEN)
-	sub	r2, r2, #(GENERATED_GBL_DATA_SIZE + 8)	@ set base 2 words into abort
-#else
 	ldr	r2, IRQ_STACK_START_IN		@ set base 2 words into abort
 						@ stack
-#endif
 	ldmia	r2, {r2 - r3}			@ get values for "aborted" pc
 						@ and cpsr (into parm regs)
 	add	r0, sp, #S_FRAME_SIZE		@ grab pointer to old stack
@@ -507,14 +406,8 @@ cpu_init_crit:
 	.endm
 
 	.macro get_bad_stack
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-	ldr	r13, _armboot_start		@ setup our mode stack (enter
-	sub	r13, r13, #(CONFIG_SYS_MALLOC_LEN)	@ move past malloc pool
-	sub	r13, r13, #(GENERATED_GBL_DATA_SIZE + 8) @ move to reserved a couple
-#else
 	ldr	r13, IRQ_STACK_START_IN		@ setup our mode stack (enter
 						@ in banked mode)
-#endif
 
 	str	lr, [r13]			@ save caller lr in position 0
 						@ of saved stack
@@ -535,14 +428,8 @@ cpu_init_crit:
 	sub	r13, r13, #4			@ space on current stack for
 						@ scratch reg.
 	str	r0, [r13]			@ save R0's value.
-#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
-	ldr	r0, _armboot_start		@ get data regions start
-	sub	r0, r0, #(CONFIG_SYS_MALLOC_LEN)	@ move past malloc pool
-	sub	r0, r0, #(GENERATED_GBL_DATA_SIZE + 8)	@ move past gbl and a couple
-#else
 	ldr	r0, IRQ_STACK_START_IN		@ get data regions start
 						@ spots for abort stack
-#endif
 	str	lr, [r0]			@ save caller lr in position 0
 						@ of saved stack
 	mrs	r0, spsr			@ get the spsr