[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, 2 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index 50fd376446c9..28a58da5592c 100644
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -47,7 +47,7 @@ struct NS16550 {
 
 static volatile struct NS16550 __iomem *udbg_comport;
 
-static void udbg_550_putc(unsigned char c)
+static void udbg_550_putc(char c)
 {
         if (udbg_comport) {
                 while ((in_8(&udbg_comport->lsr) & LSR_THRE) == 0)
@@ -69,7 +69,7 @@ static int udbg_550_getc_poll(void)
         return -1;
 }
 
-static unsigned char udbg_550_getc(void)
+static char udbg_550_getc(void)
 {
         if (udbg_comport) {
                 while ((in_8(&udbg_comport->lsr) & LSR_DR) == 0)