[SLOF] [PATCH RFC v0 2/3] Generalize output banner write routine

[Nikunj A Dadhania]

Initial display output is replayed to vga/vnc display, similar facility
will be needed for virtio-serial console as the enumeration would only
happen during PCI discovery.

Generalize the write routine that could be used accordingly for
virtio-serial driver as well.

Signed-off-by: Nikunj A Dadhania <nikunj at linux.vnet.ibm.com>
---
 board-qemu/slof/OF.fs | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/board-qemu/slof/OF.fs b/board-qemu/slof/OF.fs
index 7566c8b..c8df9ca 100644
--- a/board-qemu/slof/OF.fs
+++ b/board-qemu/slof/OF.fs
@@ -159,24 +159,30 @@ check-for-nvramrc
 CREATE version-str 10 ALLOT
 0 value temp-ptr
 
+: dump-display-write
+    s" screen" find-alias  IF
+        drop terminal-write drop
+    THEN
+;
+
 : dump-display-buffer
     disp-ptr to temp-ptr
-    " SLOF **********************************************************************" terminal-write drop
+    " SLOF **********************************************************************" dump-display-write
     cr
     version-str get-print-version
     version-str @                   \ start
     version-str 8 + @               \ end
-    over - terminal-write drop
-    " Press 's' to enter Open Firmware." terminal-write drop
+    over - dump-display-write
+    " Press 's' to enter Open Firmware." dump-display-write
     cr cr
     temp-ptr disp-size > IF
         temp-ptr disp-size MOD
         dup
-        prevga-disp-buf + swap disp-size swap - terminal-write drop
+        prevga-disp-buf + swap disp-size swap - dump-display-write
         temp-ptr disp-size MOD
-        prevga-disp-buf swap 1 - terminal-write drop
+        prevga-disp-buf swap 1 - dump-display-write
     ELSE
-        prevga-disp-buf temp-ptr terminal-write drop
+        prevga-disp-buf temp-ptr dump-display-write
     THEN
 ;
 
-- 
2.7.4