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 */ 29static 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 47static 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/* 64 * Called very early, MMU is off, device-tree isn't unflattened 65 */ 66static int __init mpc831x_rdb_probe(void) 67{ 68 unsigned long root = of_get_flat_dt_root(); 69 70 return of_flat_dt_is_compatible(root, "MPC8313ERDB") || 71 of_flat_dt_is_compatible(root, "fsl,mpc8315erdb"); 72} 73 74static struct of_device_id __initdata of_bus_ids[] = { 75 { .compatible = "simple-bus" }, 76 { .compatible = "gianfar" }, 77 { .compatible = "gpio-leds", }, 78 {}, 79}; 80 81static int __init declare_of_platform_devices(void) 82{ 83 of_platform_bus_probe(NULL, of_bus_ids, NULL); 84 return 0; 85} 86machine_device_initcall(mpc831x_rdb, declare_of_platform_devices); 87 88define_machine(mpc831x_rdb) { 89 .name = "MPC831x RDB", 90 .probe = mpc831x_rdb_probe, 91 .setup_arch = mpc831x_rdb_setup_arch, 92 .init_IRQ = mpc831x_rdb_init_IRQ, 93 .get_irq = ipic_get_irq, 94 .restart = mpc83xx_restart, 95 .time_init = mpc83xx_time_init, 96 .calibrate_decr = generic_calibrate_decr, 97 .progress = udbg_progress, 98}; 99