If the payload is compressed, SPL_COPY_PAYLOAD_ONLY should always be set since the payload will not be directly read to its load address. The payload will first be read to a temporary buffer, and then be decompressed to its load address, without image header.
If the payload is not compressed, and SPL_COPY_PAYLOAD_ONLY is set, image header should be skipped on loading. Otherwise image header should also be read to its load address.
Reviewed-by: Daniel Schwierzeck daniel.schwierzeck@gmail.com Signed-off-by: Weijie Gao weijie.gao@mediatek.com --- v6 changes: none v5 changes: none v4 changes: new --- common/spl/spl_legacy.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/common/spl/spl_legacy.c b/common/spl/spl_legacy.c index 2ec7154423..ae8731c782 100644 --- a/common/spl/spl_legacy.c +++ b/common/spl/spl_legacy.c @@ -88,15 +88,29 @@ int spl_load_legacy_img(struct spl_image_info *spl_image, /* Read header into local struct */ load->read(load, header, sizeof(hdr), &hdr);
+ /* + * If the payload is compressed, the decompressed data should be + * directly write to its load address. + */ + if (spl_image_get_comp(&hdr) != IH_COMP_NONE) + spl_image->flags |= SPL_COPY_PAYLOAD_ONLY; + ret = spl_parse_image_header(spl_image, bootdev, &hdr); if (ret) return ret;
- dataptr = header + sizeof(hdr); - /* Read image */ switch (spl_image_get_comp(&hdr)) { case IH_COMP_NONE: + dataptr = header; + + /* + * Image header will be skipped only if SPL_COPY_PAYLOAD_ONLY + * is set + */ + if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) + dataptr += sizeof(hdr); + load->read(load, dataptr, spl_image->size, (void *)(unsigned long)spl_image->load_addr); break; @@ -104,6 +118,9 @@ int spl_load_legacy_img(struct spl_image_info *spl_image, case IH_COMP_LZMA: lzma_len = LZMA_LEN;
+ /* dataptr points to compressed payload */ + dataptr = header + sizeof(hdr); + debug("LZMA: Decompressing %08lx to %08lx\n", dataptr, spl_image->load_addr); src = malloc(spl_image->size);