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Removed unused ARMv7-A cache function

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This commit is contained in:
Gregory Nutt 2013-07-27 14:03:02 -06:00
parent ae6ed8ca52
commit 9a5311296f
1 changed files with 0 additions and 41 deletions
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41
arch/arm/src/armv7-a/arm_cache.S
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@ -98,7 +98,6 @@
.globl cp15_invalidate_dcache_for_dma
.globl cp15_clean_dcache_for_dma
.globl cp15_flush_dcache_for_dma
.globl cp15_flush_kern_dcache_for_dma
/****************************************************************************
* Public Functions
@ -302,44 +301,4 @@ cp15_flush_dcache_for_dma:
dsb
bx lr
.size cp15_flush_dcache_for_dma, . - cp15_flush_dcache_for_dma
/****************************************************************************
* Name: cp15_flush_kern_dcache_for_dma
*
* Description:
* Ensure that the data held in the page kaddr is written back to the page
* in question.
*
* Input Parameters:
* start - virtual start address of region
* end - virtual end address of region
*
* Returned Value:
* None
*
****************************************************************************/
.globl cp15_flush_kern_dcache_for_dma
.type cp15_flush_kern_dcache_for_dma, function
cp15_flush_kern_dcache_for_dma:
mrc CP15_TR(r3) /* Read the Cache Type Register */
lsr r3, r3, #16 /* Isolate the DMinLine field */
and r3, r3, #0xf
mov r2, #4
mov r2, r2, lsl r3 /* Get the cache line size in bytes */
add r1, r0, r1
sub r3, r2, #1 /* R3=Cache line size mask */
bic r0, r0, r3 /* R0=aligned start address */
mcrne CP15_DCCIMVAC(r0) /* Clean and invalidate data cache line by VA to PoC */
add r0, r0, r2 /* R12=Next cache line */
cmp r0, r1 /* Loop until all cache lines have been cleaned */
blo 1b /* Merge with loop flushing each D cache line to memory */
dsb
bx lr
.size cp15_flush_kern_dcache_for_dma, . - cp15_flush_kern_dcache_for_dma
.end