Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/arch/mips/dec/reset.c b/arch/mips/dec/reset.c
new file mode 100644
index 0000000000..3df01f1da3
--- /dev/null
+++ b/arch/mips/dec/reset.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Reset a DECstation machine.
+ *
+ * Copyright (C) 199x  the Anonymous
+ * Copyright (C) 2001, 2002, 2003  Maciej W. Rozycki
+ */
+#include <linux/interrupt.h>
+#include <linux/linkage.h>
+
+#include <asm/addrspace.h>
+
+typedef void __noreturn (* noret_func_t)(void);
+
+static inline void __noreturn back_to_prom(void)
+{
+	noret_func_t func = (void *)CKSEG1ADDR(0x1fc00000);
+
+	func();
+}
+
+void __noreturn dec_machine_restart(char *command)
+{
+	back_to_prom();
+}
+
+void __noreturn dec_machine_halt(void)
+{
+	back_to_prom();
+}
+
+void __noreturn dec_machine_power_off(void)
+{
+    /* DECstations don't have a software power switch */
+	back_to_prom();
+}
+
+irqreturn_t dec_intr_halt(int irq, void *dev_id)
+{
+	dec_machine_halt();
+}