/* * Architecture- / platform-specific boot-time initialization code for * IBM PowerPC 4xx based boards. Adapted from original * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek * <dan@net4x.com>. * * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu> * * Rewritten and ported to the merged powerpc tree: * Copyright 2007 IBM Corporation * Josh Boyer <jwboyer@linux.vnet.ibm.com> * * 2002 (c) MontaVista, Software, Inc. This file is licensed under * the terms of the GNU General Public License version 2. This program * is licensed "as is" without any warranty of any kind, whether express * or implied. */ #include <linux/init.h> #include <asm/machdep.h> #include <asm/prom.h> #include <asm/udbg.h> #include <asm/time.h> #include <asm/uic.h> #include <asm/of_platform.h> static struct of_device_id walnut_of_bus[] = { { .compatible = "ibm,plb3", }, { .compatible = "ibm,opb", }, { .compatible = "ibm,ebc", }, {}, }; static int __init walnut_device_probe(void) { if (!machine_is(walnut)) return 0; /* FIXME: do bus probe here */ of_platform_bus_probe(NULL, walnut_of_bus, NULL); return 0; } device_initcall(walnut_device_probe); static int __init walnut_probe(void) { unsigned long root = of_get_flat_dt_root(); if (!of_flat_dt_is_compatible(root, "ibm,walnut")) return 0; return 1; } static void __init walnut_setup_arch(void) { } define_machine(walnut) { .name = "Walnut", .probe = walnut_probe, .setup_arch = walnut_setup_arch, .progress = udbg_progress, .init_IRQ = uic_init_tree, .get_irq = uic_get_irq, .calibrate_decr = generic_calibrate_decr, };