Kim Phillips | b359049 | 2007-02-07 22:19:12 -0600 | [diff] [blame] | 1 | /* |
| 2 | * arch/powerpc/platforms/83xx/mpc8313_rdb.c |
| 3 | * |
| 4 | * Description: MPC8313x RDB board specific routines. |
| 5 | * This file is based on mpc834x_sys.c |
| 6 | * Author: Lo Wlison <r43300@freescale.com> |
| 7 | * |
| 8 | * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved. |
| 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/pci.h> |
| 17 | |
| 18 | #include <asm/time.h> |
| 19 | #include <asm/ipic.h> |
| 20 | #include <asm/udbg.h> |
| 21 | |
| 22 | #include "mpc83xx.h" |
| 23 | |
| 24 | #undef DEBUG |
| 25 | #ifdef DEBUG |
| 26 | #define DBG(fmt...) udbg_printf(fmt) |
| 27 | #else |
| 28 | #define DBG(fmt...) |
| 29 | #endif |
| 30 | |
| 31 | #ifndef CONFIG_PCI |
| 32 | unsigned long isa_io_base = 0; |
| 33 | unsigned long isa_mem_base = 0; |
| 34 | #endif |
| 35 | |
| 36 | /* ************************************************************************ |
| 37 | * |
| 38 | * Setup the architecture |
| 39 | * |
| 40 | */ |
| 41 | static void __init mpc8313_rdb_setup_arch(void) |
| 42 | { |
| 43 | struct device_node *np; |
| 44 | |
| 45 | if (ppc_md.progress) |
| 46 | ppc_md.progress("mpc8313_rdb_setup_arch()", 0); |
| 47 | |
| 48 | #ifdef CONFIG_PCI |
| 49 | for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) |
| 50 | add_bridge(np); |
| 51 | |
| 52 | ppc_md.pci_exclude_device = mpc83xx_exclude_device; |
| 53 | #endif |
| 54 | } |
| 55 | |
| 56 | void __init mpc8313_rdb_init_IRQ(void) |
| 57 | { |
| 58 | struct device_node *np; |
| 59 | |
| 60 | np = of_find_node_by_type(NULL, "ipic"); |
| 61 | if (!np) |
| 62 | return; |
| 63 | |
| 64 | ipic_init(np, 0); |
| 65 | |
| 66 | /* Initialize the default interrupt mapping priorities, |
| 67 | * in case the boot rom changed something on us. |
| 68 | */ |
| 69 | ipic_set_default_priority(); |
| 70 | } |
| 71 | |
| 72 | /* |
| 73 | * Called very early, MMU is off, device-tree isn't unflattened |
| 74 | */ |
| 75 | static int __init mpc8313_rdb_probe(void) |
| 76 | { |
| 77 | char *model = of_get_flat_dt_prop(of_get_flat_dt_root(), |
| 78 | "model", NULL); |
| 79 | if (model == NULL) |
| 80 | return 0; |
| 81 | if (strcmp(model, "MPC8313ERDB")) |
| 82 | return 0; |
| 83 | |
| 84 | DBG("MPC8313 RDB found\n"); |
| 85 | |
| 86 | return 1; |
| 87 | } |
| 88 | |
| 89 | define_machine(mpc8313_rdb) { |
| 90 | .name = "MPC8313 RDB", |
| 91 | .probe = mpc8313_rdb_probe, |
| 92 | .setup_arch = mpc8313_rdb_setup_arch, |
| 93 | .init_IRQ = mpc8313_rdb_init_IRQ, |
| 94 | .get_irq = ipic_get_irq, |
| 95 | .restart = mpc83xx_restart, |
| 96 | .time_init = mpc83xx_time_init, |
| 97 | .calibrate_decr = generic_calibrate_decr, |
| 98 | .progress = udbg_progress, |
| 99 | }; |