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 27 #include <asm/system.h> 28 #include <asm/atomic.h> 29 #include <asm/time.h> 30 #include <asm/io.h> 31 #include <asm/machdep.h> 32 #include <asm/ipic.h> 33 #include <asm/irq.h> 34 #include <asm/prom.h> 35 #include <asm/udbg.h> 36 #include <sysdev/fsl_soc.h> 37 38 #include "mpc83xx.h" 39 40 /* ************************************************************************ 41 * 42 * Setup the architecture 43 * 44 */ 45 static void __init mpc834x_itx_setup_arch(void) 46 { 47 #ifdef CONFIG_PCI 48 struct device_node *np; 49 #endif 50 51 if (ppc_md.progress) 52 ppc_md.progress("mpc834x_itx_setup_arch()", 0); 53 54 #ifdef CONFIG_PCI 55 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") 56 mpc83xx_add_bridge(np); 57 #endif 58 59 mpc834x_usb_cfg(); 60 } 61 62 static void __init mpc834x_itx_init_IRQ(void) 63 { 64 struct device_node *np; 65 66 np = of_find_node_by_type(NULL, "ipic"); 67 if (!np) 68 return; 69 70 ipic_init(np, 0); 71 72 /* Initialize the default interrupt mapping priorities, 73 * in case the boot rom changed something on us. 74 */ 75 ipic_set_default_priority(); 76 } 77 78 /* 79 * Called very early, MMU is off, device-tree isn't unflattened 80 */ 81 static int __init mpc834x_itx_probe(void) 82 { 83 unsigned long root = of_get_flat_dt_root(); 84 85 return of_flat_dt_is_compatible(root, "MPC834xMITX"); 86 } 87 88 define_machine(mpc834x_itx) { 89 .name = "MPC834x ITX", 90 .probe = mpc834x_itx_probe, 91 .setup_arch = mpc834x_itx_setup_arch, 92 .init_IRQ = mpc834x_itx_init_IRQ, 93 .get_irq = ipic_get_irq, 94 .restart = mpc83xx_restart, 95 .time_init = mpc83xx_time_init, 96 .calibrate_decr = generic_calibrate_decr, 97 .progress = udbg_progress, 98 }; 99