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These devices share the same "compatible" in device tree causing some incompatibilities (sysupgrades, ASU profile identification), assign a unique "compatible" and "model" to each variant. Context: Commit [1] added each variant's dts compatible to the SUPPORTED_DEVICES field of the other variant to make easy sysupgrades between these physically indistinguishable devices variants possible. But there were found three issues which does not allow this: - the sysupgrade's stricter check still used in some sysupgrade paths(this check is being replaced(and redundant) with the newer fwtool's SUPPORTED_DEVICES check using the info in images METADATA), this check will fail when sysupgrading from a different board_name(compatible dts) that the image was created for (image profile name).[2] - ASU needs unique "dts compatible" to identify the devices profile. - and an ASU's profile identification limitation when several devices from a common target share SUPPORTED_DEVICES entries.[3] There is a proposal for these issues but not yet implemented [4][3]. Until these issues are fixed we won't allow "easy" sysupgrades between these two device variants. Commit [5] avoided the ASU profile identification limitation but missed the required two unique dts compatibles in order to make the two variants fully work, although not allowing easy sysupgrade between them. [1]:8d30e07180[2]: sysupgrade stricter check https://github.com/openwrt/openwrt/issues/20566#issuecomment-3583555482 [3]: ASU proposal https://github.com/openwrt/asu/pull/1533 [4]: allow easy sysupgrade proposal https://github.com/openwrt/openwrt/pull/20947 [5]:b71f4665cdFixes: b71f466 ("mediatek: filogic: fix supported_devices list for gl-mt2500") Fixes: 8d30e07 ("mediatek: filogic: fix for new GL.iNet GL-MT2500/GL-MT2500A hardware revision") Fixes: https://github.com/openwrt/openwrt/issues/20566 Fixes: https://github.com/openwrt/asu/issues/1525 Signed-off-by: Mario Andrés Pérez <mapb_@outlook.com> Link: https://github.com/openwrt/openwrt/pull/21842 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> (cherry picked from commit 7aa1f7e814dea0627e905ef1ad92954cae51d301)