• Baojun Wang's avatar
    target-ppc: enable PPC_MFTB for 44x · f4078236
    Baojun Wang authored
    According to PPC440 user manual, PPC 440 supports ``mftb'' even it's a
    preserved instruction:
    PPC440_UM2013.pdf, p.445, table A-3
    when I compile a kernel (2.6.30, bamboo_defconfig/440EP &
    canyonlands/460EX), I can see ``mftb'' by using ppc-xxx-objdump
    I have also checked the ppc 440x[456], 460S, 464, they also should support mftb.
    The following patch enable mftb for all ppc 440 variants, including:
    440EP, 440GP, 440x4, 440x5 and 460
    Signed-off-by: default avatarBaojun Wang <wangbj@gmail.com>
    Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>