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| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2018-04-15 11:48:17 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-04-17 17:45:08 -0400 |
| commit | bbac9222dcf2a4c233269e67ea38ddfb3536d85b (patch) | |
| tree | bff7109c2afc9958662ee27af99fdef27ef3307c | |
| parent | 721881c4178dc5ca1f201c9d9f8e86d32499666f (diff) | |
| download | u-boot-bbac9222dcf2a4c233269e67ea38ddfb3536d85b.tar.gz u-boot-bbac9222dcf2a4c233269e67ea38ddfb3536d85b.tar.bz2 u-boot-bbac9222dcf2a4c233269e67ea38ddfb3536d85b.zip | |
bootm: Align cache flush begin address
commit b4d956f6bc0f ("bootm: Align cache flush end address correctly")
aligns the end address of the cache flush operation to a cache-line size to
ensure lower-layers in the code accept the range provided and flush.
A similar action should be taken for the begin address of a cache flush
operation. The load address may not be aligned to a cache-line boundary, so
ensure the passed address is aligned.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reported-by: Breno Matheus Lima <brenomatheus@gmail.com>
Suggested-by: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Tested-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | common/bootm.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/common/bootm.c b/common/bootm.c index adb12137c7..36162917a1 100644 --- a/common/bootm.c +++ b/common/bootm.c @@ -434,6 +434,8 @@ static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end, ulong blob_end = os.end; ulong image_start = os.image_start; ulong image_len = os.image_len; + ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN); + ulong flush_len = *load_end - load; bool no_overlap; void *load_buf, *image_buf; int err; @@ -447,7 +449,11 @@ static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end, bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); return err; } - flush_cache(load, ALIGN(*load_end - load, ARCH_DMA_MINALIGN)); + + if (flush_start < load) + flush_len += load - flush_start; + + flush_cache(flush_start, ALIGN(flush_len, ARCH_DMA_MINALIGN)); debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end); bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED); |