Add btext console (from YhLu)

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1533 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/config/Options.lb

@@ -383,6 +383,11 @@ define CONFIG_CONSOLE_VGA
 	export always
 	comment "Log messages to VGA"
 end
+define CONFIG_CONSOLE_BTEXT
+        default 0
+        export always
+        comment "Log messages to btext fb console"
+end
 define CONFIG_CONSOLE_LOGBUF
 	default 0
 	export always

src/console/Config.lb

@@ -1,4 +1,4 @@
-uses CONFIG_CONSOLE_SERIAL8250 CONFIG_CONSOLE_VGA
+uses CONFIG_CONSOLE_SERIAL8250 CONFIG_CONSOLE_VGA CONFIG_CONSOLE_BTEXT
 uses CONFIG_CONSOLE_LOGBUF CONFIG_CONSOLE_SROM
 uses CONFIG_USE_INIT
 
@@ -9,6 +9,9 @@ end
 if CONFIG_CONSOLE_VGA
   driver vga_console.o
 end
+if CONFIG_CONSOLE_BTEXT
+  driver btext_console.o
+end
 if CONFIG_CONSOLE_LOGBUF
   driver logbuf_console.o
 end