1 /* 2 * arch/powerpc/platforms/83xx/mpc830x_rdb.c 3 * 4 * Description: MPC830x RDB board specific routines. 5 * This file is based on mpc831x_rdb.c 6 * 7 * Copyright (C) Freescale Semiconductor, Inc. 2009. All rights reserved. 8 * Copyright (C) 2010. Ilya Yanok, Emcraft Systems, yanok@emcraft.com 9 * 10 * This program is free software; you can redistribute it and/or modify it 11 * under the terms of the GNU General Public License as published by the 12 * Free Software Foundation; either version 2 of the License, or (at your 13 * option) any later version. 14 */ 15 16 #include <linux/pci.h> 17 #include <linux/of_platform.h> 18 #include <asm/time.h> 19 #include <asm/ipic.h> 20 #include <asm/udbg.h> 21 #include <sysdev/fsl_pci.h> 22 #include <sysdev/fsl_soc.h> 23 #include "mpc83xx.h" 24 25 /* 26 * Setup the architecture 27 */ 28 static void __init mpc830x_rdb_setup_arch(void) 29 { 30 #ifdef CONFIG_PCI 31 struct device_node *np; 32 #endif 33 34 if (ppc_md.progress) 35 ppc_md.progress("mpc830x_rdb_setup_arch()", 0); 36 37 #ifdef CONFIG_PCI 38 for_each_compatible_node(np, "pci", "fsl,mpc8308-pcie") 39 mpc83xx_add_bridge(np); 40 #endif 41 mpc831x_usb_cfg(); 42 } 43 44 static void __init mpc830x_rdb_init_IRQ(void) 45 { 46 struct device_node *np; 47 48 np = of_find_node_by_type(NULL, "ipic"); 49 if (!np) 50 return; 51 52 ipic_init(np, 0); 53 54 /* Initialize the default interrupt mapping priorities, 55 * in case the boot rom changed something on us. 56 */ 57 ipic_set_default_priority(); 58 } 59 60 /* 61 * Called very early, MMU is off, device-tree isn't unflattened 62 */ 63 static int __init mpc830x_rdb_probe(void) 64 { 65 unsigned long root = of_get_flat_dt_root(); 66 67 return of_flat_dt_is_compatible(root, "MPC8308RDB") || 68 of_flat_dt_is_compatible(root, "fsl,mpc8308rdb") || 69 of_flat_dt_is_compatible(root, "denx,mpc8308_p1m"); 70 } 71 72 static struct of_device_id __initdata of_bus_ids[] = { 73 { .compatible = "simple-bus" }, 74 { .compatible = "gianfar" }, 75 {}, 76 }; 77 78 static int __init declare_of_platform_devices(void) 79 { 80 of_platform_bus_probe(NULL, of_bus_ids, NULL); 81 return 0; 82 } 83 machine_device_initcall(mpc830x_rdb, declare_of_platform_devices); 84 85 define_machine(mpc830x_rdb) { 86 .name = "MPC830x RDB", 87 .probe = mpc830x_rdb_probe, 88 .setup_arch = mpc830x_rdb_setup_arch, 89 .init_IRQ = mpc830x_rdb_init_IRQ, 90 .get_irq = ipic_get_irq, 91 .restart = mpc83xx_restart, 92 .time_init = mpc83xx_time_init, 93 .calibrate_decr = generic_calibrate_decr, 94 .progress = udbg_progress, 95 }; 96