spl: fat: Add option to disable DMA alignment
If we don't DMA-align buffers we pass to FAT, it will align them itself.
This behaviour likely should be deprecated in favor of
CONFIG_BOUNCE_BUFFER, but that's a task for another series. For the
meantime, don't bother aligning the buffer unless we had been doing so in
the past.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/common/spl/spl_blk_fs.c b/common/spl/spl_blk_fs.c
index ac267ab..04eac6f 100644
--- a/common/spl/spl_blk_fs.c
+++ b/common/spl/spl_blk_fs.c
@@ -82,7 +82,10 @@
}
load.read = spl_fit_read;
- spl_set_bl_len(&load, ARCH_DMA_MINALIGN);
+ if (IS_ENABLED(CONFIG_SPL_FS_FAT_DMA_ALIGN))
+ spl_set_bl_len(&load, ARCH_DMA_MINALIGN);
+ else
+ spl_set_bl_len(&load, 1);
load.priv = &dev;
return spl_load(spl_image, bootdev, &load, filesize, 0);
}