* dont compile audio codec drivers for bootloader, as we dont need them -> saves time

* dont include uda1380 in bootloaders
* fix to get rid of a nasty humming sound during is not uda1380 specific but iriver
  specific and so put the fix into the bootloader. An other option was to 
  put audiohw_reset() into target tree... but i want to get rid of audiohw_reset


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15721 a1c6a512-1295-4272-9138-f99709370657

bootloader/main.c

@@ -41,7 +41,6 @@
 #include "power.h"
 #include "powermgmt.h"
 #include "file.h"
-#include "uda1380.h"
 #include "eeprom_settings.h"
 #include "rbunicode.h"
 #include "common.h"
@@ -444,8 +443,15 @@ void main(void)
 # endif
 
     backlight_init();
+
 #ifdef HAVE_UDA1380
-    audiohw_reset();
+    /* get rid of a nasty humming sound during boot
+      -> RESET signal */
+    or_l(1<<29, &GPIO_OUT);
+    or_l(1<<29, &GPIO_ENABLE);
+    or_l(1<<29, &GPIO_FUNCTION);
+    sleep(HZ/100);
+    and_l(~(1<<29), &GPIO_OUT);
 #endif
 
     lcd_init();