On Wed, Feb 04, 2026 at 03:20:10PM -0600, Tom Rini wrote:
> On Wed, Feb 04, 2026 at 10:16:12PM +0100, Phil Sutter wrote:
> > Hi,
> >
> > On Thu, Jan 15, 2026 at 04:19:32PM -0600, Tom Rini wrote:
> > > With commit 0535e46d55d7 ("scripts/dtc: Update to upstream version
> > > v1.7.2-35-g52f07dcca47c") it is now a fatal error to U-Boot if our
> > > device tree is not 8-byte aligned. In commit f613a6e15ef7 ("ARM: OMAP2+:
> > > Pad SPL binary to 8-byte alignment before DTB") Beleswar Padhi explains
> > > that we must have ALIGN(x) statements inside of a section to ensure that
> > > padding is included and not simply that the linker address counter is
> > > incremented. To that end, this patch:
> > > - Expands some linker sections to be more readable when adding a second
> > > statement to the section.
> > > - Aligns the final section before _end (for U-Boot) or
> > > _image_binary_end or __bss_end (for xPL phases) by 8-bytes by adding
> > > '. = ALIGN(8);' to the final section before the symbol.
> > > - Ensure that we do have alignment by adding an ASSERT so that when not
> > > aligned we fail to link (and explain why).
> > > - Remove now-spurious '. = ALIGN(x);' statements that were intended to
> > > provide the above alignments.
> > >
> > > Signed-off-by: Tom Rini <[email protected]>
> >
> > For unclear reasons, this seems to break boot via xmodem protocol on my
> > Synology DS414. I found this commit via 'git bisect'. The symptom is:
> >
> > | kwboot version 2026.04-rc1-00098-g6ad0cf8f83db
> > | Detected kwbimage v1 with SPI boot signature
> > | Patching image boot signature to UART
> > | Aligning image header to Xmodem block size
> > | Sending boot message. Please reboot the target...\
> > | Sending boot image header (67584 bytes)...
> > | 0 %
> > [......................................................................]
> > | 13 %
> > [......................................................................]
> > | 26 %
> > [......................................................................]
> > | 39 %
> > [......................................................................]
> > | 53 %
> > [......................................................................]
> > | 66 %
> > [......................................................................]
> > | 79 %
> > [......................................................................]
> > | 92 % [......................................
> > ]
> > | Done
> > | Missing DTB
> > | spl_init() failed: -2
> > | ### ERROR ### Please RESET the board ###
> > |
> > |
> > | xmodem: Connection timed out
> >
> > Debug printf()s in fdtdec_prepare_fdt() show that fdt_check_header()
> > returns -FDT_ERR_BADMAGIC.
> >
> > With HEAD at a8d982e1f1726 ("x86: cpu: Fix crash on FTRACE enabled
> > builds"), reverting arch/arm/cpu/u-boot-spl.lds like so:
> >
> > | @@ -41,14 +41,21 @@ SECTIONS
> > | __binman_sym_start = .;
> > | KEEP(*(SORT(.binman_sym*)));
> > | __binman_sym_end = .;
> > | - . = ALIGN(8);
> > | }
> > |
> > | + . = ALIGN(4); /* critical! */
> > | __image_copy_end = .;
> > | + .rel.dyn : {
> > | + __rel_dyn_start = .;
> > | + *(.rel*)
> > | + __rel_dyn_end = .;
> > | + }
> > | +
> > | + . = ALIGN(8);
> > | _image_binary_end = .;
> > | _end = .;
> > |
> > | - .bss : {
> > | + .bss __rel_dyn_start (OVERLAY) : {
> > | __bss_start = .;
> > | *(.bss*)
> > | . = ALIGN(8);
> >
> > The SPL image starts up again and continues loading the real uboot
> > image. Note that I have no idea what these changes actually do, so I
> > need instructions if I should dig further.
>
> Does:
> https://patchwork.ozlabs.org/project/uboot/patch/[email protected]/
> fix it?
Sadly not, same result.
Thanks for the quick reply!
Cheers, Phil
