projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b5820d0 MB |
1 | /* |
| 2 | * Support for 'mpc5200-simple-platform' compatible boards. | |
| 3 | * | |
| 4 | * Written by Marian Balakowicz <m8@semihalf.com> | |
| 5 | * Copyright (C) 2007 Semihalf | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms of the GNU General Public License as published by the | |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 10 | * option) any later version. | |
| 11 | * | |
| 12 | * Description: | |
| 13 | * This code implements support for a simple MPC52xx based boards which | |
| 14 | * do not need a custom platform specific setup. Such boards are | |
| 15 | * supported assuming the following: | |
| 16 | * | |
| 17 | * - GPIO pins are configured by the firmware, | |
| 18 | * - CDM configuration (clocking) is setup correctly by firmware, | |
| 19 | * - if the 'fsl,has-wdt' property is present in one of the | |
| 20 | * gpt nodes, then it is safe to use such gpt to reset the board, | |
| 21 | * - PCI is supported if enabled in the kernel configuration | |
| 22 | * and if there is a PCI bus node defined in the device tree. | |
| 23 | * | |
| 24 | * Boards that are compatible with this generic platform support | |
| 25 | * are listed in a 'board' table. | |
| 26 | */ | |
| 27 | ||
| 28 | #undef DEBUG | |
| 29 | #include <asm/time.h> | |
| 30 | #include <asm/prom.h> | |
| 31 | #include <asm/machdep.h> | |
| 32 | #include <asm/mpc52xx.h> | |
| 33 | ||
| 34 | /* | |
| 35 | * Setup the architecture | |
| 36 | */ | |
| 37 | static void __init mpc5200_simple_setup_arch(void) | |
| 38 | { | |
| 39 | if (ppc_md.progress) | |
| 40 | ppc_md.progress("mpc5200_simple_setup_arch()", 0); | |
| 41 | ||
| c8004a28 GL |
42 | /* Map important registers from the internal memory map */ |
| 43 | mpc52xx_map_common_devices(); | |
| 44 | ||
| 5b5820d0 MB |
45 | /* Some mpc5200 & mpc5200b related configuration */ |
| 46 | mpc5200_setup_xlb_arbiter(); | |
| 47 | ||
| 5b5820d0 MB |
48 | mpc52xx_setup_pci(); |
| 49 | } | |
| 50 | ||
| 51 | /* list of the supported boards */ | |
| 52 | static char *board[] __initdata = { | |
| bdad0548 | 53 | "intercontrol,digsy-mtc", |
| 5b5820d0 | 54 | "promess,motionpro", |
| 106757b3 | 55 | "phytec,pcm030", |
| 5b5820d0 MB |
56 | "schindler,cm5200", |
| 57 | "tqc,tqm5200", | |
| 58 | NULL | |
| 59 | }; | |
| 60 | ||
| 61 | /* | |
| 62 | * Called very early, MMU is off, device-tree isn't unflattened | |
| 63 | */ | |
| 64 | static int __init mpc5200_simple_probe(void) | |
| 65 | { | |
| 66 | unsigned long node = of_get_flat_dt_root(); | |
| 67 | int i = 0; | |
| 68 | ||
| 69 | while (board[i]) { | |
| 70 | if (of_flat_dt_is_compatible(node, board[i])) | |
| 71 | break; | |
| 72 | i++; | |
| 73 | } | |
| 74 | ||
| 75 | return (board[i] != NULL); | |
| 76 | } | |
| 77 | ||
| 78 | define_machine(mpc5200_simple_platform) { | |
| 79 | .name = "mpc5200-simple-platform", | |
| 80 | .probe = mpc5200_simple_probe, | |
| 81 | .setup_arch = mpc5200_simple_setup_arch, | |
| 82 | .init = mpc52xx_declare_of_platform_devices, | |
| 83 | .init_IRQ = mpc52xx_init_irq, | |
| 84 | .get_irq = mpc52xx_get_irq, | |
| 85 | .restart = mpc52xx_restart, | |
| 86 | .calibrate_decr = generic_calibrate_decr, | |
| 87 | }; |