1/* 2 * arch/powerpc/platforms/83xx/mpc832x_rdb.c 3 * 4 * Copyright (C) Freescale Semiconductor, Inc. 2007. All rights reserved. 5 * 6 * Description: 7 * MPC832x RDB board specific routines. 8 * This file is based on mpc832x_mds.c and mpc8313_rdb.c 9 * Author: Michael Barkowski <michael.barkowski@freescale.com> 10 * 11 * This program is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License as published by the 13 * Free Software Foundation; either version 2 of the License, or (at your 14 * option) any later version. 15 */ 16 17#include <linux/pci.h> 18 19#include <asm/of_platform.h> 20#include <asm/time.h> 21#include <asm/ipic.h> 22#include <asm/udbg.h> 23#include <asm/qe.h> 24#include <asm/qe_ic.h> 25 26#include "mpc83xx.h" 27 28#undef DEBUG 29#ifdef DEBUG 30#define DBG(fmt...) udbg_printf(fmt) 31#else 32#define DBG(fmt...) 33#endif 34 35#ifndef CONFIG_PCI 36unsigned long isa_io_base = 0; 37unsigned long isa_mem_base = 0; 38#endif 39 40/* ************************************************************************ 41 * 42 * Setup the architecture 43 * 44 */ 45static void __init mpc832x_rdb_setup_arch(void) 46{ 47#if defined(CONFIG_PCI) || defined(CONFIG_QUICC_ENGINE) 48 struct device_node *np; 49#endif 50 51 if (ppc_md.progress) 52 ppc_md.progress("mpc832x_rdb_setup_arch()", 0); 53 54#ifdef CONFIG_PCI 55 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) 56 add_bridge(np); 57 58 ppc_md.pci_exclude_device = mpc83xx_exclude_device; 59#endif 60 61#ifdef CONFIG_QUICC_ENGINE 62 qe_reset(); 63 64 if ((np = of_find_node_by_name(np, "par_io")) != NULL) { 65 par_io_init(np); 66 of_node_put(np); 67 68 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;) 69 par_io_of_config(np); 70 } 71#endif /* CONFIG_QUICC_ENGINE */ 72} 73 74static struct of_device_id mpc832x_ids[] = { 75 { .type = "soc", }, 76 { .compatible = "soc", }, 77 { .type = "qe", }, 78 { .type = "mdio", }, 79 {}, 80}; 81 82static int __init mpc832x_declare_of_platform_devices(void) 83{ 84 if (!machine_is(mpc832x_rdb)) 85 return 0; 86 87 /* Publish the QE devices */ 88 of_platform_bus_probe(NULL, mpc832x_ids, NULL); 89 90 return 0; 91} 92device_initcall(mpc832x_declare_of_platform_devices); 93 94void __init mpc832x_rdb_init_IRQ(void) 95{ 96 97 struct device_node *np; 98 99 np = of_find_node_by_type(NULL, "ipic"); 100 if (!np) 101 return; 102 103 ipic_init(np, 0); 104 105 /* Initialize the default interrupt mapping priorities, 106 * in case the boot rom changed something on us. 107 */ 108 ipic_set_default_priority(); 109 of_node_put(np); 110 111#ifdef CONFIG_QUICC_ENGINE 112 np = of_find_node_by_type(NULL, "qeic"); 113 if (!np) 114 return; 115 116 qe_ic_init(np, 0); 117 of_node_put(np); 118#endif /* CONFIG_QUICC_ENGINE */ 119} 120 121/* 122 * Called very early, MMU is off, device-tree isn't unflattened 123 */ 124static int __init mpc832x_rdb_probe(void) 125{ 126 unsigned long root = of_get_flat_dt_root(); 127 128 return of_flat_dt_is_compatible(root, "MPC832xRDB"); 129} 130 131define_machine(mpc832x_rdb) { 132 .name = "MPC832x RDB", 133 .probe = mpc832x_rdb_probe, 134 .setup_arch = mpc832x_rdb_setup_arch, 135 .init_IRQ = mpc832x_rdb_init_IRQ, 136 .get_irq = ipic_get_irq, 137 .restart = mpc83xx_restart, 138 .time_init = mpc83xx_time_init, 139 .calibrate_decr = generic_calibrate_decr, 140 .progress = udbg_progress, 141}; 142