1 /* 2 * arch/powerpc/platforms/83xx/mpc837x_rdb.c 3 * 4 * Copyright (C) 2007 Freescale Semicondutor, Inc. All rights reserved. 5 * 6 * MPC837x RDB board specific routines 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2 of the License, or (at your 11 * option) any later version. 12 */ 13 14 #include <linux/pci.h> 15 #include <linux/of_platform.h> 16 17 #include <asm/time.h> 18 #include <asm/ipic.h> 19 #include <asm/udbg.h> 20 #include <sysdev/fsl_pci.h> 21 22 #include "mpc83xx.h" 23 24 extern int mpc837x_usb_cfg(void); 25 26 /* ************************************************************************ 27 * 28 * Setup the architecture 29 * 30 */ 31 static void __init mpc837x_rdb_setup_arch(void) 32 { 33 #ifdef CONFIG_PCI 34 struct device_node *np; 35 #endif 36 37 if (ppc_md.progress) 38 ppc_md.progress("mpc837x_rdb_setup_arch()", 0); 39 40 #ifdef CONFIG_PCI 41 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") 42 mpc83xx_add_bridge(np); 43 #endif 44 mpc837x_usb_cfg(); 45 } 46 47 static struct of_device_id mpc837x_ids[] = { 48 { .type = "soc", }, 49 { .compatible = "soc", }, 50 { .compatible = "simple-bus", }, 51 {}, 52 }; 53 54 static int __init mpc837x_declare_of_platform_devices(void) 55 { 56 /* Publish of_device */ 57 of_platform_bus_probe(NULL, mpc837x_ids, NULL); 58 59 return 0; 60 } 61 machine_device_initcall(mpc837x_rdb, mpc837x_declare_of_platform_devices); 62 63 static void __init mpc837x_rdb_init_IRQ(void) 64 { 65 struct device_node *np; 66 67 np = of_find_compatible_node(NULL, NULL, "fsl,ipic"); 68 if (!np) 69 return; 70 71 ipic_init(np, 0); 72 73 /* Initialize the default interrupt mapping priorities, 74 * in case the boot rom changed something on us. 75 */ 76 ipic_set_default_priority(); 77 } 78 79 /* 80 * Called very early, MMU is off, device-tree isn't unflattened 81 */ 82 static int __init mpc837x_rdb_probe(void) 83 { 84 unsigned long root = of_get_flat_dt_root(); 85 86 return of_flat_dt_is_compatible(root, "fsl,mpc8377rdb") || 87 of_flat_dt_is_compatible(root, "fsl,mpc8378rdb") || 88 of_flat_dt_is_compatible(root, "fsl,mpc8379rdb"); 89 } 90 91 define_machine(mpc837x_rdb) { 92 .name = "MPC837x RDB", 93 .probe = mpc837x_rdb_probe, 94 .setup_arch = mpc837x_rdb_setup_arch, 95 .init_IRQ = mpc837x_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