1/* 2 * arch/powerpc/platforms/83xx/mpc834x_itx.c 3 * 4 * MPC834x ITX board specific routines 5 * 6 * Maintainer: Kumar Gala <galak@kernel.crashing.org> 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/stddef.h> 15#include <linux/kernel.h> 16#include <linux/init.h> 17#include <linux/errno.h> 18#include <linux/reboot.h> 19#include <linux/pci.h> 20#include <linux/kdev_t.h> 21#include <linux/major.h> 22#include <linux/console.h> 23#include <linux/delay.h> 24#include <linux/seq_file.h> 25#include <linux/root_dev.h> 26#include <linux/of_platform.h> 27 28#include <asm/system.h> 29#include <asm/atomic.h> 30#include <asm/time.h> 31#include <asm/io.h> 32#include <asm/machdep.h> 33#include <asm/ipic.h> 34#include <asm/irq.h> 35#include <asm/prom.h> 36#include <asm/udbg.h> 37#include <sysdev/fsl_soc.h> 38#include <sysdev/fsl_pci.h> 39 40#include "mpc83xx.h" 41 42static struct of_device_id __initdata mpc834x_itx_ids[] = { 43 { .compatible = "fsl,pq2pro-localbus", }, 44 { .compatible = "simple-bus", }, 45 { .compatible = "gianfar", }, 46 {}, 47}; 48 49static int __init mpc834x_itx_declare_of_platform_devices(void) 50{ 51 return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL); 52} 53machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices); 54 55/* ************************************************************************ 56 * 57 * Setup the architecture 58 * 59 */ 60static void __init mpc834x_itx_setup_arch(void) 61{ 62#ifdef CONFIG_PCI 63 struct device_node *np; 64#endif 65 66 if (ppc_md.progress) 67 ppc_md.progress("mpc834x_itx_setup_arch()", 0); 68 69#ifdef CONFIG_PCI 70 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") 71 mpc83xx_add_bridge(np); 72#endif 73 74 mpc834x_usb_cfg(); 75} 76 77static void __init mpc834x_itx_init_IRQ(void) 78{ 79 struct device_node *np; 80 81 np = of_find_node_by_type(NULL, "ipic"); 82 if (!np) 83 return; 84 85 ipic_init(np, 0); 86 87 /* Initialize the default interrupt mapping priorities, 88 * in case the boot rom changed something on us. 89 */ 90 ipic_set_default_priority(); 91} 92 93/* 94 * Called very early, MMU is off, device-tree isn't unflattened 95 */ 96static int __init mpc834x_itx_probe(void) 97{ 98 unsigned long root = of_get_flat_dt_root(); 99 100 return of_flat_dt_is_compatible(root, "MPC834xMITX"); 101} 102 103define_machine(mpc834x_itx) { 104 .name = "MPC834x ITX", 105 .probe = mpc834x_itx_probe, 106 .setup_arch = mpc834x_itx_setup_arch, 107 .init_IRQ = mpc834x_itx_init_IRQ, 108 .get_irq = ipic_get_irq, 109 .restart = mpc83xx_restart, 110 .time_init = mpc83xx_time_init, 111 .calibrate_decr = generic_calibrate_decr, 112 .progress = udbg_progress, 113}; 114