[POWERPC] Use udbg_early_init() on ppc32

udbg_early_init() is a function used on 64 bit systems, which
initializes whichever early udbg backend is configured.  This function
is not called on 32-bit, however if btext early debug is enabled it
does have an explicit, inline, #ifdef-ed assignment performing
analagous initialization.

This patch makes things more uniform by folding the btext
initialization as an option into udbg_early_init() and calling that
from the 32-bit setup path.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 6a19fa40dcee..44a6a3c47feb 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -116,12 +116,8 @@ unsigned long __init early_init(unsigned long dt_ptr)
  */
 void __init machine_init(unsigned long dt_ptr, unsigned long phys)
 {
-        /* If btext is enabled, we might have a BAT setup for early display,
-         * thus we do enable some very basic udbg output
-         */
-#ifdef CONFIG_BOOTX_TEXT
-        udbg_putc = btext_drawchar;
-#endif
+        /* Enable early debugging if any specified (see udbg.h) */
+        udbg_early_init();
 
         /* Do some early initialization based on the flat device tree */
         early_init_devtree(__va(dt_ptr));