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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | /* * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved. * * Description: * MPC832xE MDS board specific routines. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/reboot.h> #include <linux/pci.h> #include <linux/kdev_t.h> #include <linux/major.h> #include <linux/console.h> #include <linux/delay.h> #include <linux/seq_file.h> #include <linux/root_dev.h> #include <linux/initrd.h> #include <linux/of_platform.h> #include <linux/of_device.h> #include <asm/system.h> #include <asm/atomic.h> #include <asm/time.h> #include <asm/io.h> #include <asm/machdep.h> #include <asm/ipic.h> #include <asm/irq.h> #include <asm/prom.h> #include <asm/udbg.h> #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> #include <asm/qe.h> #include <asm/qe_ic.h> #include "mpc83xx.h" #undef DEBUG #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) #else #define DBG(fmt...) #endif /* ************************************************************************ * * Setup the architecture * */ static void __init mpc832x_sys_setup_arch(void) { struct device_node *np; u8 __iomem *bcsr_regs = NULL; if (ppc_md.progress) ppc_md.progress("mpc832x_sys_setup_arch()", 0); /* Map BCSR area */ np = of_find_node_by_name(NULL, "bcsr"); if (np) { struct resource res; of_address_to_resource(np, 0, &res); bcsr_regs = ioremap(res.start, res.end - res.start +1); of_node_put(np); } #ifdef CONFIG_PCI for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") mpc83xx_add_bridge(np); #endif #ifdef CONFIG_QUICC_ENGINE qe_reset(); if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) { par_io_init(np); of_node_put(np); for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;) par_io_of_config(np); } if ((np = of_find_compatible_node(NULL, "network", "ucc_geth")) != NULL){ /* Reset the Ethernet PHYs */ #define BCSR8_FETH_RST 0x50 clrbits8(&bcsr_regs[8], BCSR8_FETH_RST); udelay(1000); setbits8(&bcsr_regs[8], BCSR8_FETH_RST); iounmap(bcsr_regs); of_node_put(np); } #endif /* CONFIG_QUICC_ENGINE */ } static struct of_device_id mpc832x_ids[] = { { .type = "soc", }, { .compatible = "soc", }, { .compatible = "simple-bus", }, { .type = "qe", }, { .compatible = "fsl,qe", }, {}, }; static int __init mpc832x_declare_of_platform_devices(void) { /* Publish the QE devices */ of_platform_bus_probe(NULL, mpc832x_ids, NULL); return 0; } machine_device_initcall(mpc832x_mds, mpc832x_declare_of_platform_devices); static void __init mpc832x_sys_init_IRQ(void) { struct device_node *np; np = of_find_node_by_type(NULL, "ipic"); if (!np) return; ipic_init(np, 0); /* Initialize the default interrupt mapping priorities, * in case the boot rom changed something on us. */ ipic_set_default_priority(); of_node_put(np); #ifdef CONFIG_QUICC_ENGINE np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic"); if (!np) { np = of_find_node_by_type(NULL, "qeic"); if (!np) return; } qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic); of_node_put(np); #endif /* CONFIG_QUICC_ENGINE */ } /* * Called very early, MMU is off, device-tree isn't unflattened */ static int __init mpc832x_sys_probe(void) { unsigned long root = of_get_flat_dt_root(); return of_flat_dt_is_compatible(root, "MPC832xMDS"); } define_machine(mpc832x_mds) { .name = "MPC832x MDS", .probe = mpc832x_sys_probe, .setup_arch = mpc832x_sys_setup_arch, .init_IRQ = mpc832x_sys_init_IRQ, .get_irq = ipic_get_irq, .restart = mpc83xx_restart, .time_init = mpc83xx_time_init, .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, }; |