svn commit: r256745 - head/sys/mips/beri

[Brooks Davis]

Author: brooks
Date: Fri Oct 18 15:40:37 2013
New Revision: 256745
URL: http://svnweb.freebsd.org/changeset/base/256745

Log:
  MFP4:
  Change 227630 by bz at bz_zenith on 2013/04/12 08:50:27
  
  	Implement soft reset setting sr in sr and just in case loop
  	endlessly afterwards.
  
  MFC after:	3 days
  Sponsored by:	DARPA/AFRL

Modified:
  head/sys/mips/beri/beri_machdep.c

Modified: head/sys/mips/beri/beri_machdep.c
==============================================================================
--- head/sys/mips/beri/beri_machdep.c	Fri Oct 18 15:27:11 2013	(r256744)
+++ head/sys/mips/beri/beri_machdep.c	Fri Oct 18 15:40:37 2013	(r256745)
@@ -116,14 +116,19 @@ mips_init(void)
 
 /*
  * Perform a board-level soft-reset.
- *
- * XXXRW: BERI doesn't yet have a board-level soft-reset.
  */
 void
 platform_reset(void)
 {
 
-	panic("%s: not yet", __func__);
+	/* XXX SMP will likely require us to do more. */
+	__asm__ __volatile__(
+		"mfc0 $k0, $12\n\t"
+		"li $k1, 0x00100000\n\t"
+		"or $k0, $k0, $k1\n\t"
+		"mtc0 $k0, $12\n");
+	for( ; ; )
+		__asm__ __volatile("wait");
 }
 
 void