1 /* 2 * arch/powerpc/platforms/83xx/mpc831x_rdb.c 3 * 4 * Description: MPC831x RDB board specific routines. 5 * This file is based on mpc834x_sys.c 6 * Author: Lo Wlison <r43300@freescale.com> 7 * 8 * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved. 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 19 #include <asm/time.h> 20 #include <asm/ipic.h> 21 #include <asm/udbg.h> 22 #include <sysdev/fsl_pci.h> 23 24 #include "mpc83xx.h" 25 26 /* 27 * Setup the architecture 28 */ 29 static void __init mpc831x_rdb_setup_arch(void) 30 { 31 #ifdef CONFIG_PCI 32 struct device_node *np; 33 #endif 34 35 if (ppc_md.progress) 36 ppc_md.progress("mpc831x_rdb_setup_arch()", 0); 37 38 #ifdef CONFIG_PCI 39 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") 40 mpc83xx_add_bridge(np); 41 for_each_compatible_node(np, "pci", "fsl,mpc8314-pcie") 42 mpc83xx_add_bridge(np); 43 #endif 44 mpc831x_usb_cfg(); 45 } 46 47 static void __init mpc831x_rdb_init_IRQ(void) 48 { 49 struct device_node *np; 50 51 np = of_find_node_by_type(NULL, "ipic"); 52 if (!np) 53 return; 54 55 ipic_init(np, 0); 56 57 /* Initialize the default interrupt mapping priorities, 58 * in case the boot rom changed something on us. 59 */ 60 ipic_set_default_priority(); 61 } 62 63 static const char *board[] __initdata = { 64 "MPC8313ERDB", 65 "fsl,mpc8315erdb", 66 NULL 67 }; 68 69 /* 70 * Called very early, MMU is off, device-tree isn't unflattened 71 */ 72 static int __init mpc831x_rdb_probe(void) 73 { 74 return of_flat_dt_match(of_get_flat_dt_root(), board); 75 } 76 77 static struct of_device_id __initdata of_bus_ids[] = { 78 { .compatible = "simple-bus" }, 79 { .compatible = "gianfar" }, 80 { .compatible = "gpio-leds", }, 81 {}, 82 }; 83 84 static int __init declare_of_platform_devices(void) 85 { 86 of_platform_bus_probe(NULL, of_bus_ids, NULL); 87 return 0; 88 } 89 machine_device_initcall(mpc831x_rdb, declare_of_platform_devices); 90 91 define_machine(mpc831x_rdb) { 92 .name = "MPC831x RDB", 93 .probe = mpc831x_rdb_probe, 94 .setup_arch = mpc831x_rdb_setup_arch, 95 .init_IRQ = mpc831x_rdb_init_IRQ, 96 .get_irq = ipic_get_irq, 97 .restart = mpc83xx_restart, 98 .time_init = mpc83xx_time_init, 99 .calibrate_decr = generic_calibrate_decr, 100 .progress = udbg_progress, 101 }; 102