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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/mips/cobalt/reset.c
Initial import
Diffstat (limited to 'arch/mips/cobalt/reset.c')
-rw-r--r--arch/mips/cobalt/reset.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c
new file mode 100644
index 000000000..4eedd481d
--- /dev/null
+++ b/arch/mips/cobalt/reset.c
@@ -0,0 +1,52 @@
+/*
+ * Cobalt Reset operations
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1996, 1997 by Ralf Baechle
+ * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv)
+ */
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/leds.h>
+
+#include <asm/idle.h>
+#include <asm/processor.h>
+
+#include <cobalt.h>
+
+#define RESET_PORT ((void __iomem *)CKSEG1ADDR(0x1c000000))
+#define RESET 0x0f
+
+DEFINE_LED_TRIGGER(power_off_led_trigger);
+
+static int __init ledtrig_power_off_init(void)
+{
+ led_trigger_register_simple("power-off", &power_off_led_trigger);
+ return 0;
+}
+device_initcall(ledtrig_power_off_init);
+
+void cobalt_machine_halt(void)
+{
+ /*
+ * turn on power off LED on RaQ
+ */
+ led_trigger_event(power_off_led_trigger, LED_FULL);
+
+ local_irq_disable();
+ while (1) {
+ if (cpu_wait)
+ cpu_wait();
+ }
+}
+
+void cobalt_machine_restart(char *command)
+{
+ writeb(RESET, RESET_PORT);
+
+ /* we should never get here */
+ cobalt_machine_halt();
+}