1/* 2 * Copyright (c) 2008 Emcraft Systems 3 * Sergei Poselenov <sposelenov@emcraft.com> 4 * 5 * Based on MPC8560 ADS and arch/ppc tqm85xx ports 6 * 7 * Maintained by Kumar Gala (see MAINTAINERS for contact information) 8 * 9 * Copyright 2008 Freescale Semiconductor Inc. 10 * 11 * Copyright (c) 2005-2006 DENX Software Engineering 12 * Stefan Roese <sr@denx.de> 13 * 14 * Based on original work by 15 * Kumar Gala <kumar.gala@freescale.com> 16 * Copyright 2004 Freescale Semiconductor Inc. 17 * 18 * This program is free software; you can redistribute it and/or modify it 19 * under the terms of the GNU General Public License as published by the 20 * Free Software Foundation; either version 2 of the License, or (at your 21 * option) any later version. 22 */ 23 24#include <linux/stddef.h> 25#include <linux/kernel.h> 26#include <linux/pci.h> 27#include <linux/kdev_t.h> 28#include <linux/delay.h> 29#include <linux/seq_file.h> 30#include <linux/of_platform.h> 31 32#include <asm/system.h> 33#include <asm/time.h> 34#include <asm/machdep.h> 35#include <asm/pci-bridge.h> 36#include <asm/mpic.h> 37#include <asm/prom.h> 38#include <mm/mmu_decl.h> 39#include <asm/udbg.h> 40 41#include <sysdev/fsl_soc.h> 42#include <sysdev/fsl_pci.h> 43 44#include "socrates_fpga_pic.h" 45 46static void __init socrates_pic_init(void) 47{ 48 struct mpic *mpic; 49 struct resource r; 50 struct device_node *np; 51 52 np = of_find_node_by_type(NULL, "open-pic"); 53 if (!np) { 54 printk(KERN_ERR "Could not find open-pic node\n"); 55 return; 56 } 57 58 if (of_address_to_resource(np, 0, &r)) { 59 printk(KERN_ERR "Could not map mpic register space\n"); 60 of_node_put(np); 61 return; 62 } 63 64 mpic = mpic_alloc(np, r.start, 65 MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, 66 0, 256, " OpenPIC "); 67 BUG_ON(mpic == NULL); 68 of_node_put(np); 69 70 mpic_init(mpic); 71 72 np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic"); 73 if (!np) { 74 printk(KERN_ERR "Could not find socrates-fpga-pic node\n"); 75 return; 76 } 77 socrates_fpga_pic_init(np); 78 of_node_put(np); 79} 80 81/* 82 * Setup the architecture 83 */ 84static void __init socrates_setup_arch(void) 85{ 86#ifdef CONFIG_PCI 87 struct device_node *np; 88#endif 89 90 if (ppc_md.progress) 91 ppc_md.progress("socrates_setup_arch()", 0); 92 93#ifdef CONFIG_PCI 94 for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") 95 fsl_add_bridge(np, 1); 96#endif 97} 98 99static struct of_device_id __initdata socrates_of_bus_ids[] = { 100 { .compatible = "simple-bus", }, 101 { .compatible = "gianfar", }, 102 {}, 103}; 104 105static int __init socrates_publish_devices(void) 106{ 107 return of_platform_bus_probe(NULL, socrates_of_bus_ids, NULL); 108} 109machine_device_initcall(socrates, socrates_publish_devices); 110 111/* 112 * Called very early, device-tree isn't unflattened 113 */ 114static int __init socrates_probe(void) 115{ 116 unsigned long root = of_get_flat_dt_root(); 117 118 if (of_flat_dt_is_compatible(root, "abb,socrates")) 119 return 1; 120 121 return 0; 122} 123 124define_machine(socrates) { 125 .name = "Socrates", 126 .probe = socrates_probe, 127 .setup_arch = socrates_setup_arch, 128 .init_IRQ = socrates_pic_init, 129 .get_irq = mpic_get_irq, 130 .restart = fsl_rstcr_restart, 131 .calibrate_decr = generic_calibrate_decr, 132 .progress = udbg_progress, 133}; 134