[POWERPC] Enable the RTAS udbg console on IBM Cell Blade

Enable the RTAS udbg console on IBM Cell Blade, this allows xmon
to work.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 5 insertions, 0 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index deea4c8e1f4e..4f4071a7bdfb 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -419,6 +419,7 @@ config PPC_IBM_CELL_BLADE
         select PPC_RTAS
         select MMIO_NVRAM
         select PPC_UDBG_16550
+        select UDBG_RTAS_CONSOLE
 
 config UDBG_RTAS_CONSOLE
         bool
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index 2436eaab701d..00d112f92272 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -141,6 +141,10 @@ static int __init cell_probe(void)
             !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
                 return 0;
 
+#ifdef CONFIG_UDBG_RTAS_CONSOLE
+        udbg_init_rtas_console();
+#endif
+
         hpte_init_native();
 
         return 1;