1 /* 2 * MPC85xx RDB Board Setup 3 * 4 * Copyright 2009 Freescale Semiconductor Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; either version 2 of the License, or (at your 9 * option) any later version. 10 */ 11 12 #include <linux/stddef.h> 13 #include <linux/kernel.h> 14 #include <linux/pci.h> 15 #include <linux/kdev_t.h> 16 #include <linux/delay.h> 17 #include <linux/seq_file.h> 18 #include <linux/interrupt.h> 19 #include <linux/of_platform.h> 20 21 #include <asm/system.h> 22 #include <asm/time.h> 23 #include <asm/machdep.h> 24 #include <asm/pci-bridge.h> 25 #include <mm/mmu_decl.h> 26 #include <asm/prom.h> 27 #include <asm/udbg.h> 28 #include <asm/mpic.h> 29 30 #include <sysdev/fsl_soc.h> 31 #include <sysdev/fsl_pci.h> 32 #include "smp.h" 33 34 #include "mpc85xx.h" 35 36 #undef DEBUG 37 38 #ifdef DEBUG 39 #define DBG(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) 40 #else 41 #define DBG(fmt, args...) 42 #endif 43 44 45 void __init mpc85xx_rdb_pic_init(void) 46 { 47 struct mpic *mpic; 48 unsigned long root = of_get_flat_dt_root(); 49 50 if (of_flat_dt_is_compatible(root, "fsl,MPC85XXRDB-CAMP")) { 51 mpic = mpic_alloc(NULL, 0, 52 MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | 53 MPIC_SINGLE_DEST_CPU, 54 0, 256, " OpenPIC "); 55 } else { 56 mpic = mpic_alloc(NULL, 0, 57 MPIC_WANTS_RESET | 58 MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | 59 MPIC_SINGLE_DEST_CPU, 60 0, 256, " OpenPIC "); 61 } 62 63 BUG_ON(mpic == NULL); 64 mpic_init(mpic); 65 } 66 67 /* 68 * Setup the architecture 69 */ 70 static void __init mpc85xx_rdb_setup_arch(void) 71 { 72 #ifdef CONFIG_PCI 73 struct device_node *np; 74 #endif 75 76 if (ppc_md.progress) 77 ppc_md.progress("mpc85xx_rdb_setup_arch()", 0); 78 79 #ifdef CONFIG_PCI 80 for_each_node_by_type(np, "pci") { 81 if (of_device_is_compatible(np, "fsl,mpc8548-pcie")) 82 fsl_add_bridge(np, 0); 83 } 84 85 #endif 86 87 mpc85xx_smp_init(); 88 printk(KERN_INFO "MPC85xx RDB board from Freescale Semiconductor\n"); 89 } 90 91 machine_device_initcall(p2020_rdb, mpc85xx_common_publish_devices); 92 machine_device_initcall(p1020_rdb, mpc85xx_common_publish_devices); 93 94 /* 95 * Called very early, device-tree isn't unflattened 96 */ 97 static int __init p2020_rdb_probe(void) 98 { 99 unsigned long root = of_get_flat_dt_root(); 100 101 if (of_flat_dt_is_compatible(root, "fsl,P2020RDB")) 102 return 1; 103 return 0; 104 } 105 106 static int __init p1020_rdb_probe(void) 107 { 108 unsigned long root = of_get_flat_dt_root(); 109 110 if (of_flat_dt_is_compatible(root, "fsl,P1020RDB")) 111 return 1; 112 return 0; 113 } 114 115 define_machine(p2020_rdb) { 116 .name = "P2020 RDB", 117 .probe = p2020_rdb_probe, 118 .setup_arch = mpc85xx_rdb_setup_arch, 119 .init_IRQ = mpc85xx_rdb_pic_init, 120 #ifdef CONFIG_PCI 121 .pcibios_fixup_bus = fsl_pcibios_fixup_bus, 122 #endif 123 .get_irq = mpic_get_irq, 124 .restart = fsl_rstcr_restart, 125 .calibrate_decr = generic_calibrate_decr, 126 .progress = udbg_progress, 127 }; 128 129 define_machine(p1020_rdb) { 130 .name = "P1020 RDB", 131 .probe = p1020_rdb_probe, 132 .setup_arch = mpc85xx_rdb_setup_arch, 133 .init_IRQ = mpc85xx_rdb_pic_init, 134 #ifdef CONFIG_PCI 135 .pcibios_fixup_bus = fsl_pcibios_fixup_bus, 136 #endif 137 .get_irq = mpic_get_irq, 138 .restart = fsl_rstcr_restart, 139 .calibrate_decr = generic_calibrate_decr, 140 .progress = udbg_progress, 141 }; 142