From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 arch/mips/loongson32/common/reset.c | 51 +++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 arch/mips/loongson32/common/reset.c

(limited to 'arch/mips/loongson32/common/reset.c')

diff --git a/arch/mips/loongson32/common/reset.c b/arch/mips/loongson32/common/reset.c
new file mode 100644
index 000000000..0c7399b30
--- /dev/null
+++ b/arch/mips/loongson32/common/reset.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
+ */
+
+#include <linux/io.h>
+#include <linux/pm.h>
+#include <linux/sizes.h>
+#include <asm/idle.h>
+#include <asm/reboot.h>
+
+#include <loongson1.h>
+
+static void __iomem *wdt_reg_base;
+
+static void ls1x_halt(void)
+{
+	while (1) {
+		if (cpu_wait)
+			cpu_wait();
+	}
+}
+
+static void ls1x_restart(char *command)
+{
+	__raw_writel(0x1, wdt_reg_base + WDT_EN);
+	__raw_writel(0x1, wdt_reg_base + WDT_TIMER);
+	__raw_writel(0x1, wdt_reg_base + WDT_SET);
+
+	ls1x_halt();
+}
+
+static void ls1x_power_off(void)
+{
+	ls1x_halt();
+}
+
+static int __init ls1x_reboot_setup(void)
+{
+	wdt_reg_base = ioremap(LS1X_WDT_BASE, (SZ_4 + SZ_8));
+	if (!wdt_reg_base)
+		panic("Failed to remap watchdog registers");
+
+	_machine_restart = ls1x_restart;
+	_machine_halt = ls1x_halt;
+	pm_power_off = ls1x_power_off;
+
+	return 0;
+}
+
+arch_initcall(ls1x_reboot_setup);
-- 
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