config_defaults.h: new header for common u-boot config defaults

There are a bunch of features in U-Boot that we want to enable by default,
and it's best if we centralize them in one place rather than updating all
the board files out there.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

common/cmd_bootm.c

@@ -105,10 +105,6 @@ extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 typedef int boot_os_fn (int flag, int argc, char *argv[],
 			bootm_headers_t *images); /* pointers to os/initrd/fdt */
 
-#define CONFIG_BOOTM_LINUX 1
-#define CONFIG_BOOTM_NETBSD 1
-#define CONFIG_BOOTM_RTEMS 1
-
 #ifdef CONFIG_BOOTM_LINUX
 extern boot_os_fn do_bootm_linux;
 #endif

include/config_defaults.h

+/*
+ * config_defaults.h - sane defaults for everyone
+ *
+ * Copyright (c) 2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _CONFIG_DEFAULTS_H_
+#define _CONFIG_DEFAULTS_H_
+
+/* Support bootm-ing different OSes */
+#define CONFIG_BOOTM_LINUX 1
+#define CONFIG_BOOTM_NETBSD 1
+#define CONFIG_BOOTM_RTEMS 1
+
+#endif

mkconfig

@@ -101,9 +101,11 @@ for i in ${TARGETS} ; do
 	echo "#define CONFIG_MK_${i} 1" >>config.h ;
 done
 
-echo "#define CONFIG_BOARDDIR board/$BOARDDIR" >>config.h
-
-echo "#include <configs/$1.h>" >>config.h
-echo "#include <asm/config.h>" >>config.h
+cat << EOF >> config.h
+#define CONFIG_BOARDDIR board/$BOARDDIR
+#include <config_defaults.h>
+#include <configs/$1.h>
+#include <asm/config.h>
+EOF
 
 exit 0