[PATCH] powerpc: Unify udbg (#2)

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: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index bf3fd6f02249..89714929f444 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -18,7 +18,7 @@ obj-y				+= vdso32/
 obj-$(CONFIG_PPC64)             += setup_64.o binfmt_elf32.o sys_ppc32.o \
                                    signal_64.o ptrace32.o systbl.o \
                                    paca.o ioctl32.o cpu_setup_power4.o \
-                                   firmware.o sysfs.o udbg.o idle_64.o
+                                   firmware.o sysfs.o idle_64.o
 obj-$(CONFIG_PPC64)             += vdso64/
 obj-$(CONFIG_ALTIVEC)           += vecemu.o vector.o
 obj-$(CONFIG_POWER4)            += idle_power4.o
@@ -46,7 +46,7 @@ extra-$(CONFIG_8xx)		:= head_8xx.o
 extra-y                         += vmlinux.lds
 
 obj-y                           += process.o init_task.o time.o \
-                                   prom.o traps.o setup-common.o
+                                   prom.o traps.o setup-common.o udbg.o
 obj-$(CONFIG_PPC32)             += entry_32.o setup_32.o misc_32.o systbl.o
 obj-$(CONFIG_PPC64)             += misc_64.o dma_64.o iommu.o
 obj-$(CONFIG_PPC_OF)            += prom_init.o
@@ -56,8 +56,7 @@ obj-$(CONFIG_6xx)		+= idle_6xx.o
 obj-$(CONFIG_SMP)               += smp.o
 obj-$(CONFIG_KPROBES)           += kprobes.o
 obj-$(CONFIG_PPC_MULTIPLATFORM) += legacy_serial.o
-obj64-$(CONFIG_PPC_MULTIPLATFORM) += udbg_16550.o
-obj64-$(CONFIG_PPC_PMAC)        += udbg_scc.o
+obj-$(CONFIG_PPC_MULTIPLATFORM) += udbg_16550.o
 module-$(CONFIG_PPC64)          += module_64.o
 obj-$(CONFIG_MODULES)           += $(module-y)