1 files changed, 0 insertions, 85 deletions
diff --git a/cpu/arm_cortexa8/start.S b/cpu/arm_cortexa8/start.S
index 6bd65521bd..14a9bd3b03 100644
--- a/cpu/arm_cortexa8/start.S
+++ b/cpu/arm_cortexa8/start.S
@@ -415,88 +415,3 @@ fiq:
 
 #endif
 
-/*
- *	v7_flush_dcache_all()
- *
- *	Flush the whole D-cache.
- *
- *	Corrupted registers: r0-r5, r7, r9-r11
- *
- *	- mm	- mm_struct describing address space
- */
-	.align 5
-.global v7_flush_dcache_all
-v7_flush_dcache_all:
-	stmfd	r13!, {r0 - r5, r7, r9 - r12, r14}
-
-	mov	r7, r0				@ take a backup of device type
-	cmp	r0, #0x3			@ check if the device type is
-						@ GP
-	moveq r12, #0x1				@ set up to invalide L2
-smi:	.word 0x01600070			@ Call SMI monitor (smieq)
-	cmp	r7, #0x3			@ compare again in case its
-						@ lost
-	beq	finished_inval			@ if GP device, inval done
-						@ above
-
-	mrc	p15, 1, r0, c0, c0, 1		@ read clidr
-	ands	r3, r0, #0x7000000		@ extract loc from clidr
-	mov	r3, r3, lsr #23			@ left align loc bit field
-	beq	finished_inval			@ if loc is 0, then no need to
-						@ clean
-	mov	r10, #0				@ start clean at cache level 0
-inval_loop1:
-	add	r2, r10, r10, lsr #1		@ work out 3x current cache
-						@ level
-	mov	r1, r0, lsr r2			@ extract cache type bits from
-						@ clidr
-	and	r1, r1, #7			@ mask of the bits for current
-						@ cache only
-	cmp	r1, #2				@ see what cache we have at
-						@ this level
-	blt	skip_inval			@ skip if no cache, or just
-						@ i-cache
-	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level
-						@ in cssr
-	mov	r2, #0				@ operand for mcr SBZ
-	mcr	p15, 0, r2, c7, c5, 4		@ flush prefetch buffer to
-						@ sych the new cssr&csidr,
-						@ with armv7 this is 'isb',
-						@ but we compile with armv5
-	mrc	p15, 1, r1, c0, c0, 0		@ read the new csidr
-	and	r2, r1, #7			@ extract the length of the
-						@ cache lines
-	add	r2, r2, #4			@ add 4 (line length offset)
-	ldr	r4, =0x3ff
-	ands	r4, r4, r1, lsr #3		@ find maximum number on the
-						@ way size
-	clz	r5, r4				@ find bit position of way
-						@ size increment
-	ldr	r7, =0x7fff
-	ands	r7, r7, r1, lsr #13		@ extract max number of the
-						@ index size
-inval_loop2:
-	mov	r9, r4				@ create working copy of max
-						@ way size
-inval_loop3:
-	orr	r11, r10, r9, lsl r5		@ factor way and cache number
-						@ into r11
-	orr	r11, r11, r7, lsl r2		@ factor index number into r11
-	mcr	p15, 0, r11, c7, c6, 2		@ invalidate by set/way
-	subs	r9, r9, #1			@ decrement the way
-	bge	inval_loop3
-	subs	r7, r7, #1			@ decrement the index
-	bge	inval_loop2
-skip_inval:
-	add	r10, r10, #2			@ increment cache number
-	cmp	r3, r10
-	bgt	inval_loop1
-finished_inval:
-	mov	r10, #0				@ swith back to cache level 0
-	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level
-						@ in cssr
-	mcr	p15, 0, r10, c7, c5, 4		@ flush prefetch buffer,
-						@ with armv7 this is 'isb',
-						@ but we compile with armv5
-
-	ldmfd	r13!, {r0 - r5, r7, r9 - r12, pc}