1/* 2 * arch/powerpc/platforms/83xx/sbc834x.c 3 * 4 * Wind River SBC834x board specific routines 5 * 6 * By Paul Gortmaker (see MAINTAINERS for contact information) 7 * 8 * Based largely on the mpc834x_mds.c support by Kumar Gala. 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/stddef.h> 17#include <linux/kernel.h> 18#include <linux/init.h> 19#include <linux/errno.h> 20#include <linux/reboot.h> 21#include <linux/pci.h> 22#include <linux/kdev_t.h> 23#include <linux/major.h> 24#include <linux/console.h> 25#include <linux/delay.h> 26#include <linux/seq_file.h> 27#include <linux/root_dev.h> 28#include <linux/of_platform.h> 29 30#include <asm/system.h> 31#include <asm/atomic.h> 32#include <asm/time.h> 33#include <asm/io.h> 34#include <asm/machdep.h> 35#include <asm/ipic.h> 36#include <asm/irq.h> 37#include <asm/prom.h> 38#include <asm/udbg.h> 39#include <sysdev/fsl_soc.h> 40#include <sysdev/fsl_pci.h> 41 42#include "mpc83xx.h" 43 44/* ************************************************************************ 45 * 46 * Setup the architecture 47 * 48 */ 49static void __init sbc834x_setup_arch(void) 50{ 51#ifdef CONFIG_PCI 52 struct device_node *np; 53#endif 54 55 if (ppc_md.progress) 56 ppc_md.progress("sbc834x_setup_arch()", 0); 57 58#ifdef CONFIG_PCI 59 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") 60 mpc83xx_add_bridge(np); 61#endif 62 63} 64 65static void __init sbc834x_init_IRQ(void) 66{ 67 struct device_node *np; 68 69 np = of_find_node_by_type(NULL, "ipic"); 70 if (!np) 71 return; 72 73 ipic_init(np, 0); 74 75 /* Initialize the default interrupt mapping priorities, 76 * in case the boot rom changed something on us. 77 */ 78 ipic_set_default_priority(); 79 80 of_node_put(np); 81} 82 83static struct __initdata of_device_id sbc834x_ids[] = { 84 { .type = "soc", }, 85 { .compatible = "soc", }, 86 { .compatible = "simple-bus", }, 87 { .compatible = "gianfar", }, 88 {}, 89}; 90 91static int __init sbc834x_declare_of_platform_devices(void) 92{ 93 of_platform_bus_probe(NULL, sbc834x_ids, NULL); 94 return 0; 95} 96machine_device_initcall(sbc834x, sbc834x_declare_of_platform_devices); 97 98/* 99 * Called very early, MMU is off, device-tree isn't unflattened 100 */ 101static int __init sbc834x_probe(void) 102{ 103 unsigned long root = of_get_flat_dt_root(); 104 105 return of_flat_dt_is_compatible(root, "SBC834x"); 106} 107 108define_machine(sbc834x) { 109 .name = "SBC834x", 110 .probe = sbc834x_probe, 111 .setup_arch = sbc834x_setup_arch, 112 .init_IRQ = sbc834x_init_IRQ, 113 .get_irq = ipic_get_irq, 114 .restart = mpc83xx_restart, 115 .time_init = mpc83xx_time_init, 116 .calibrate_decr = generic_calibrate_decr, 117 .progress = udbg_progress, 118}; 119