MAX_FDT_SIZE       13 arch/arm64/include/asm/boot.h #define MAX_FDT_SIZE		SZ_2M
MAX_FDT_SIZE       48 arch/arm64/include/asm/fixmap.h #define FIX_FDT_SIZE		(MAX_FDT_SIZE + SZ_2M)
MAX_FDT_SIZE      230 drivers/firmware/efi/libstub/fdt.c # define MAX_FDT_SIZE SZ_2M