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arm: Don't invalidate unaligned cache regions 

At present armv7 will unhappily invalidate a cache region and print an
error message. Make it skip the operation instead, as it does with other
cache operations.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Simon Glass 2016-06-19 19:43:02 -06:00 committed by Tom Rini
parent 397b5697ad
commit 6b424611a8
1 changed files with 2 additions and 21 deletions
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23
arch/arm/cpu/armv7/cache_v7.c
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@ -44,27 +44,8 @@ static void v7_dcache_inval_range(u32 start, u32 stop, u32 line_len)
{
u32 mva;
/*
* If start address is not aligned to cache-line do not
* invalidate the first cache-line
*/
if (start & (line_len - 1)) {
printf("ERROR: %s - start address is not aligned - 0x%08x\n",
__func__, start);
/* move to next cache line */
start = (start + line_len - 1) & ~(line_len - 1);
}
/*
* If stop address is not aligned to cache-line do not
* invalidate the last cache-line
*/
if (stop & (line_len - 1)) {
printf("ERROR: %s - stop address is not aligned - 0x%08x\n",
__func__, stop);
/* align to the beginning of this cache line */
stop &= ~(line_len - 1);
}
if (!check_cache_range(start, stop))
return;
for (mva = start; mva < stop; mva = mva + line_len) {
/* DCIMVAC - Invalidate data cache by MVA to PoC */