[PATCH 1/2] scripts/Makefile.xpl: Align filtered DTB to 8-byte within multidtb.fit

[Marek Vasut]

On 1/9/26 8:00 PM, Beleswar Padhi wrote:
> When CONFIG_SPL_MULTI_DTB_FIT is enabled, multiple device trees are
> packed inside the multidtb.fit FIT image. While the individual DTBs
> and the FIT image start address are 8-byte aligned, the DTBs embedded
> within the FIT image are not guaranteed to maintain 8-byte alignment.
> 
> This misalignment causes -FDT_ERR_ALIGNMENT failure in
> setup_multi_dtb_fit() when locating the next available DTB within the
> FIT blob and setting gd->fdt_blob, because of the recent libfdt
> hardening since commit 0535e46d55d7 ("scripts/dtc: Update to upstream
> version v1.7.2-35-g52f07dcca47c")
> 
> Add the -B 0x8 flag to mkimage to enforce 8-byte alignment for all DTB
> entries within the multidtb FIT image.
Are there any other places where mkimage should enforce -B 8 too ?

Reviewed-by: Marek Vasut <marek.vasut+renesas at mailbox.org>