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MIPS: vmlinux.lds.S: align raw appended dtb to 8 bytes

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The devicetree specification requires 8-byte alignment in
memory. This is now enforced by libfdt since commit 79edff12060f
("scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9")
which included the upstream commit 5e735860c478 ("libfdt: Check for
8-byte address alignment in fdt_ro_probe_()").

This broke the MIPS raw appended DTBs which would be appended to
the image immediately following the initramfs section.  This ends
with a 32bit size, resulting in a 4-byte alignment of the DTB.

Fix by padding with zeroes to 8-bytes when MIPS_RAW_APPENDED_DTB
is defined.

Fixes: 79edff12060f ("scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9")
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Bjørn Mork 2021-03-07 19:23:01 +01:00 committed by Thomas Bogendoerfer
parent 6c810cf20f
commit 6654111c89
1 changed files with 5 additions and 1 deletions
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6
arch/mips/kernel/vmlinux.lds.S
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@ -173,7 +173,11 @@ SECTIONS
#endif
#ifdef CONFIG_MIPS_RAW_APPENDED_DTB
STRUCT_ALIGN();
.fill : {
FILL(0);
BYTE(0);
. = ALIGN(8);
}
__appended_dtb = .;
/* leave space for appended DTB */
. += 0x100000;