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    sh64: Drop deprecated ISA tuning for legacy toolchains. · ccdfc526
    Paul Mundt authored
    The original sh64 toolchains required that we tune the ISA
    level accordingly to not have head.S/entry.S blow up. With
    current toolchains, this is no longer the case, and the
    syntax magically changed as well, causing all current
    toolchains to die a horrible death.
    
    Incidentally, code generation in other parts of the kernel
    is now significantly complex enough that none of the older
    toolchains make it very far these days, so there's not
    even any point in preserving legacy compatability via
    as-option.
    
    This fixes a long-standing issue, as noted here:
    
    	http://lkml.org/lkml/2005/1/5/223
    
    
    
    Though at the time the current toolchains were too broken
    to make adjusting the tuning worthwhile.
    
    Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
    ccdfc526