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/powerpc/platforms/embedded6xx/gamecube.c | 95 +++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 arch/powerpc/platforms/embedded6xx/gamecube.c

(limited to 'arch/powerpc/platforms/embedded6xx/gamecube.c')

diff --git a/arch/powerpc/platforms/embedded6xx/gamecube.c b/arch/powerpc/platforms/embedded6xx/gamecube.c
new file mode 100644
index 000000000..5c2575adc
--- /dev/null
+++ b/arch/powerpc/platforms/embedded6xx/gamecube.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * arch/powerpc/platforms/embedded6xx/gamecube.c
+ *
+ * Nintendo GameCube board-specific support
+ * Copyright (C) 2004-2009 The GameCube Linux Team
+ * Copyright (C) 2007,2008,2009 Albert Herranz
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/kexec.h>
+#include <linux/seq_file.h>
+#include <linux/of_platform.h>
+
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/time.h>
+#include <asm/udbg.h>
+
+#include "flipper-pic.h"
+#include "usbgecko_udbg.h"
+
+
+static void __noreturn gamecube_spin(void)
+{
+	/* spin until power button pressed */
+	for (;;)
+		cpu_relax();
+}
+
+static void __noreturn gamecube_restart(char *cmd)
+{
+	local_irq_disable();
+	flipper_platform_reset();
+	gamecube_spin();
+}
+
+static void gamecube_power_off(void)
+{
+	local_irq_disable();
+	gamecube_spin();
+}
+
+static void __noreturn gamecube_halt(void)
+{
+	gamecube_restart(NULL);
+}
+
+static int __init gamecube_probe(void)
+{
+	if (!of_machine_is_compatible("nintendo,gamecube"))
+		return 0;
+
+	pm_power_off = gamecube_power_off;
+
+	ug_udbg_init();
+
+	return 1;
+}
+
+static void gamecube_shutdown(void)
+{
+	flipper_quiesce();
+}
+
+define_machine(gamecube) {
+	.name			= "gamecube",
+	.probe			= gamecube_probe,
+	.restart		= gamecube_restart,
+	.halt			= gamecube_halt,
+	.init_IRQ		= flipper_pic_probe,
+	.get_irq		= flipper_pic_get_irq,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+	.machine_shutdown	= gamecube_shutdown,
+};
+
+
+static const struct of_device_id gamecube_of_bus[] = {
+	{ .compatible = "nintendo,flipper", },
+	{ },
+};
+
+static int __init gamecube_device_probe(void)
+{
+	if (!machine_is(gamecube))
+		return 0;
+
+	of_platform_bus_probe(NULL, gamecube_of_bus, NULL);
+	return 0;
+}
+device_initcall(gamecube_device_probe);
+
-- 
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