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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/standalone/i960/nindy960/brdinit.c
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initial import
Diffstat (limited to 'sysdeps/standalone/i960/nindy960/brdinit.c')
-rw-r--r--sysdeps/standalone/i960/nindy960/brdinit.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/sysdeps/standalone/i960/nindy960/brdinit.c b/sysdeps/standalone/i960/nindy960/brdinit.c
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+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
+     On-Line Applications Research Corporation.
+ 
+This file is part of the GNU C Library.
+ 
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+ 
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+ 
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <standalone.h>
+#include "i960ca.h"
+
+/*  _Board_Initialize()
+
+This routine initializes the board.  
+
+NOTE: Only tested on a Cyclone CVME961 but should be OK on any i960ca board. */
+
+void 
+DEFUN_VOID(_Board_Initialize)
+{
+  struct i80960ca_prcb   *prcb;     /* ptr to processor control block */
+  struct i80960ca_ctltbl *ctl_tbl;  /* ptr to control table */
+
+  static inline struct i80960ca_prcb *get_prcb()
+  { register struct i80960ca_prcb *_prcb = 0;
+    asm volatile( "calls 5; \
+                   mov   g0,%0" \
+                   : "=d" (_prcb) \
+                   : "0" (_prcb) );
+    return ( _prcb );
+  }
+
+  prcb    = get_prcb();
+  ctl_tbl = prcb->control_tbl;
+
+  /*   The following configures the data breakpoint (which must be set
+   *   before this is executed) to break on writes only.
+   */
+
+  ctl_tbl->bpcon &= ~0x00cc0000;
+  reload_ctl_group( 6 );
+
+   /*  bit 31 of the Register Cache Control can be set to
+    *  enable an alternative caching algorithm.  It does
+    *  not appear to help our applications.
+    */
+
+   /* Configure Number of Register Caches */
+
+  prcb->reg_cache_cfg = 8;
+  soft_reset( prcb );
+}