[MIPS] Add back support for LASAT platforms

Signed-off-by: Brian Murphy <brian@murphy.dk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/arch/mips/lasat/reset.c b/arch/mips/lasat/reset.c
new file mode 100644
index 000000000000..b1e7a89fb730
--- /dev/null
+++ b/arch/mips/lasat/reset.c
@@ -0,0 +1,61 @@
+/*
+ * Thomas Horsten <thh@lasat.com>
+ * Copyright (C) 2000 LASAT Networks A/S.
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Reset the LASAT board.
+ */
+#include <linux/kernel.h>
+#include <linux/pm.h>
+
+#include <asm/reboot.h>
+#include <asm/system.h>
+#include <asm/lasat/lasat.h>
+
+#include "picvue.h"
+#include "prom.h"
+
+static void lasat_machine_restart(char *command);
+static void lasat_machine_halt(void);
+
+/* Used to set machine to boot in service mode via /proc interface */
+int lasat_boot_to_service;
+
+static void lasat_machine_restart(char *command)
+{
+        local_irq_disable();
+
+        if (lasat_boot_to_service) {
+                *(volatile unsigned int *)0xa0000024 = 0xdeadbeef;
+                *(volatile unsigned int *)0xa00000fc = 0xfedeabba;
+        }
+        *lasat_misc->reset_reg = 0xbedead;
+        for (;;) ;
+}
+
+static void lasat_machine_halt(void)
+{
+        local_irq_disable();
+
+        prom_monitor();
+        for (;;) ;
+}
+
+void lasat_reboot_setup(void)
+{
+        _machine_restart = lasat_machine_restart;
+        _machine_halt = lasat_machine_halt;
+        pm_power_off = lasat_machine_halt;
+}