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generic: mtdsplit: fit: improve detecting external-data FIT

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Currently the detection of external-data FIT images works by checking
if the FIT structure is more than 4 kiB. However, for boards with lots
of different DT-overlays and configurations the FIT structure can
exceed 4 kiB which results in the FIT splitter to fail detecting the
rootfs.
Increase the threshold for external-data FIT to 512 kiB as there aren't
any kernel images smaller than that, and FIT structure less than 512 kiB
will always be an external-data FIT.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2025-10-05 00:34:42 +01:00
parent f91e205286
commit a3b2a2e15d
1 changed files with 1 additions and 1 deletions
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target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_fit.c
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@ -258,7 +258,7 @@ mtdsplit_fit_parse(struct mtd_info *mtd,
* hence we need to parse FDT structure to find the end of the * hence we need to parse FDT structure to find the end of the
* last external data refernced. * last external data refernced.
*/ */
if (fit_size > 0x1000) { if (fit_size > 0x80000) {
enum mtdsplit_part_type type; enum mtdsplit_part_type type;
/* Search for the rootfs partition after the FIT image */ /* Search for the rootfs partition after the FIT image */