• Kumar Gala's avatar
    [POWERPC] Remove and replace uses of PPC_MEMSTART with memstart_addr · 99c62dd7
    Kumar Gala authored
    A number of users of PPC_MEMSTART (40x, ppc_mmu_32) can just always
    use 0 as we don't support booting these kernels at non-zero physical
    addresses since their exception vectors must be at 0 (or 0xfffx_xxxx).
    For the sub-arches that support relocatable interrupt vectors
    (book-e), it's reasonable to have memory start at a non-zero physical
    address.  For those cases use the variable memstart_addr instead of
    the #define PPC_MEMSTART since the only uses of PPC_MEMSTART are for
    initialization and in the future we can set memstart_addr at runtime
    to have a relocatable kernel.
    Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
    Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>