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