• Benjamin Herrenschmidt's avatar
    [PATCH] powerpc: Unify udbg (#2) · 51d3082f
    Benjamin Herrenschmidt authored
    This patch unifies udbg for both ppc32 and ppc64 when building the
    merged achitecture. xmon now has a single "back end". The powermac udbg
    stuff gets enriched with some ADB capabilities and btext output. In
    addition, the early_init callback is now called on ppc32 as well,
    approx. in the same order as ppc64 regarding device-tree manipulations.
    The init sequences of ppc32 and ppc64 are getting closer, I'll unify
    them in a later patch.
    
    For now, you can force udbg to the scc using "sccdbg" or to btext using
    "btextdbg" on powermacs. I'll implement a cleaner way of forcing udbg
    output to something else than the autodetected OF output device in a
    later patch.
    Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
    51d3082f
udbg_16550.c 3.83 KB