1 /* 2 * Ebony board specific routines 3 * 4 * Matt Porter <mporter@kernel.crashing.org> 5 * Copyright 2002-2005 MontaVista Software Inc. 6 * 7 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> 8 * Copyright (c) 2003-2005 Zultys Technologies 9 * 10 * Rewritten and ported to the merged powerpc tree: 11 * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation. 12 * 13 * This program is free software; you can redistribute it and/or modify it 14 * under the terms of the GNU General Public License as published by the 15 * Free Software Foundation; either version 2 of the License, or (at your 16 * option) any later version. 17 */ 18 19 #include <linux/init.h> 20 #include <asm/machdep.h> 21 #include <asm/prom.h> 22 #include <asm/udbg.h> 23 #include <asm/time.h> 24 #include <asm/uic.h> 25 #include <asm/of_platform.h> 26 27 #include "44x.h" 28 29 static struct of_device_id ebony_of_bus[] = { 30 { .compatible = "ibm,plb4", }, 31 { .compatible = "ibm,opb", }, 32 { .compatible = "ibm,ebc", }, 33 {}, 34 }; 35 36 static int __init ebony_device_probe(void) 37 { 38 if (!machine_is(ebony)) 39 return 0; 40 41 of_platform_bus_probe(NULL, ebony_of_bus, NULL); 42 43 return 0; 44 } 45 device_initcall(ebony_device_probe); 46 47 /* 48 * Called very early, MMU is off, device-tree isn't unflattened 49 */ 50 static int __init ebony_probe(void) 51 { 52 unsigned long root = of_get_flat_dt_root(); 53 54 if (!of_flat_dt_is_compatible(root, "ibm,ebony")) 55 return 0; 56 57 return 1; 58 } 59 60 static void __init ebony_setup_arch(void) 61 { 62 } 63 64 define_machine(ebony) { 65 .name = "Ebony", 66 .probe = ebony_probe, 67 .setup_arch = ebony_setup_arch, 68 .progress = udbg_progress, 69 .init_IRQ = uic_init_tree, 70 .get_irq = uic_get_irq, 71 .restart = ppc44x_reset_system, 72 .calibrate_decr = generic_calibrate_decr, 73 }; 74