ath79: GL-AR750S (NOR/NAND): limit factory.img kernel size to 2 MB
The present U-Boot for GL-AR750S has a limit of 2 MB for kernel size. While sysupgrade can manage kernels up to the present limit of 4 MB, directly flashing a factory.img with a kernel size greater than 2 MB through U-Boot will result in an unbootable device. This commit uses the newly-introduced check-kernel-size build operation to prevent the output of factory.img when the kernel exceeds 2 MB in size, yet permits output of sysupgrade.img as long as the kernel is within KERNEL_SIZE := 4096k Cc: Chuanhong Guo <gch981213@gmail.com> Signed-off-by: Jeff Kletsky <git-commits@allycomm.com>master
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