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authorAlbert Herranz <albert_herranz@yahoo.es>2009-12-12 06:31:42 +0000
committerGrant Likely <grant.likely@secretlab.ca>2009-12-12 22:24:28 -0700
commite90d71d0f52fb3d619b96ba92b7614fed7cb819e (patch)
tree8b9243e0b494d158c3a6834137177c1d69159641 /arch/powerpc
parent028ee972f032b636b5776b779c0f085ba9cfd30f (diff)
downloadop-kernel-dev-e90d71d0f52fb3d619b96ba92b7614fed7cb819e.zip
op-kernel-dev-e90d71d0f52fb3d619b96ba92b7614fed7cb819e.tar.gz
powerpc: gamecube: platform support
Add platform support for the Nintendo GameCube video game console. Signed-off-by: Albert Herranz <albert_herranz@yahoo.es> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/embedded6xx/Kconfig8
-rw-r--r--arch/powerpc/platforms/embedded6xx/Makefile1
-rw-r--r--arch/powerpc/platforms/embedded6xx/gamecube.c118
3 files changed, 127 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig
index 464e414..e318ced 100644
--- a/arch/powerpc/platforms/embedded6xx/Kconfig
+++ b/arch/powerpc/platforms/embedded6xx/Kconfig
@@ -107,3 +107,11 @@ config USBGECKO_UDBG
If in doubt, say N here.
+config GAMECUBE
+ bool "Nintendo-GameCube"
+ depends on EMBEDDED6xx
+ select GAMECUBE_COMMON
+ help
+ Select GAMECUBE if configuring for the Nintendo GameCube.
+ More information at: <http://gc-linux.sourceforge.net/>
+
diff --git a/arch/powerpc/platforms/embedded6xx/Makefile b/arch/powerpc/platforms/embedded6xx/Makefile
index b80f47c..9365edd 100644
--- a/arch/powerpc/platforms/embedded6xx/Makefile
+++ b/arch/powerpc/platforms/embedded6xx/Makefile
@@ -9,3 +9,4 @@ obj-$(CONFIG_PPC_PRPMC2800) += prpmc2800.o
obj-$(CONFIG_PPC_C2K) += c2k.o
obj-$(CONFIG_USBGECKO_UDBG) += usbgecko_udbg.o
obj-$(CONFIG_GAMECUBE_COMMON) += flipper-pic.o
+obj-$(CONFIG_GAMECUBE) += gamecube.o
diff --git a/arch/powerpc/platforms/embedded6xx/gamecube.c b/arch/powerpc/platforms/embedded6xx/gamecube.c
new file mode 100644
index 0000000..1106fd9
--- /dev/null
+++ b/arch/powerpc/platforms/embedded6xx/gamecube.c
@@ -0,0 +1,118 @@
+/*
+ * 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
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ */
+
+#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/prom.h>
+#include <asm/time.h>
+#include <asm/udbg.h>
+
+#include "flipper-pic.h"
+#include "usbgecko_udbg.h"
+
+
+static void gamecube_spin(void)
+{
+ /* spin until power button pressed */
+ for (;;)
+ cpu_relax();
+}
+
+static void 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 gamecube_halt(void)
+{
+ gamecube_restart(NULL);
+}
+
+static void __init gamecube_init_early(void)
+{
+ ug_udbg_init();
+}
+
+static int __init gamecube_probe(void)
+{
+ unsigned long dt_root;
+
+ dt_root = of_get_flat_dt_root();
+ if (!of_flat_dt_is_compatible(dt_root, "nintendo,gamecube"))
+ return 0;
+
+ return 1;
+}
+
+static void gamecube_shutdown(void)
+{
+ flipper_quiesce();
+}
+
+#ifdef CONFIG_KEXEC
+static int gamecube_kexec_prepare(struct kimage *image)
+{
+ return 0;
+}
+#endif /* CONFIG_KEXEC */
+
+
+define_machine(gamecube) {
+ .name = "gamecube",
+ .probe = gamecube_probe,
+ .init_early = gamecube_init_early,
+ .restart = gamecube_restart,
+ .power_off = gamecube_power_off,
+ .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,
+#ifdef CONFIG_KEXEC
+ .machine_kexec_prepare = gamecube_kexec_prepare,
+#endif
+};
+
+
+static 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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