/* * Copyright 2008-2011, IBM Corporation * * 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/delay.h> #include <linux/init.h> #include <linux/irq.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/of.h> #include <linux/smp.h> #include <linux/time.h> #include <linux/of_fdt.h> #include <asm/machdep.h> #include <asm/udbg.h> #include "ics.h" #include "wsp.h" static void psr2_spin(void) { hard_irq_disable(); for (;;) continue; } static void psr2_restart(char *cmd) { psr2_spin(); } static int __init psr2_probe(void) { unsigned long root = of_get_flat_dt_root(); if (of_flat_dt_is_compatible(root, "ibm,wsp-chroma")) { /* chroma systems also claim they are psr2s */ return 0; } if (!of_flat_dt_is_compatible(root, "ibm,psr2")) return 0; return 1; } define_machine(psr2_md) { .name = "PSR2 A2", .probe = psr2_probe, .setup_arch = wsp_setup_arch, .restart = psr2_restart, .power_off = psr2_spin, .halt = psr2_spin, .calibrate_decr = generic_calibrate_decr, .init_IRQ = wsp_setup_irq, .progress = udbg_progress, .power_save = book3e_idle, }; machine_arch_initcall(psr2_md, wsp_probe_devices);