LXR linux/arch/powerpc/platforms/85xx/socrates.c

   1/*
   2 * Copyright (c) 2008 Emcraft Systems
   3 * Sergei Poselenov <sposelenov@emcraft.com>
   4 *
   5 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
   6 *
   7 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
   8 *
   9 * Copyright 2008 Freescale Semiconductor Inc.
  10 *
  11 * Copyright (c) 2005-2006 DENX Software Engineering
  12 * Stefan Roese <sr@denx.de>
  13 *
  14 * Based on original work by
  15 *      Kumar Gala <kumar.gala@freescale.com>
  16 *      Copyright 2004 Freescale Semiconductor Inc.
  17 *
  18 * This program is free software; you can redistribute  it and/or modify it
  19 * under  the terms of  the GNU General  Public License as published by the
  20 * Free Software Foundation;  either version 2 of the  License, or (at your
  21 * option) any later version.
  22 */
  23
  24#include <linux/stddef.h>
  25#include <linux/kernel.h>
  26#include <linux/pci.h>
  27#include <linux/kdev_t.h>
  28#include <linux/delay.h>
  29#include <linux/seq_file.h>
  30#include <linux/of_platform.h>
  31
  32#include <asm/time.h>
  33#include <asm/machdep.h>
  34#include <asm/pci-bridge.h>
  35#include <asm/mpic.h>
  36#include <asm/prom.h>
  37#include <mm/mmu_decl.h>
  38#include <asm/udbg.h>
  39
  40#include <sysdev/fsl_soc.h>
  41#include <sysdev/fsl_pci.h>
  42
  43#include "mpc85xx.h"
  44#include "socrates_fpga_pic.h"
  45
  46static void __init socrates_pic_init(void)
  47{
  48        struct device_node *np;
  49
  50        struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
  51                        0, 256, " OpenPIC  ");
  52        BUG_ON(mpic == NULL);
  53        mpic_init(mpic);
  54
  55        np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic");
  56        if (!np) {
  57                printk(KERN_ERR "Could not find socrates-fpga-pic node\n");
  58                return;
  59        }
  60        socrates_fpga_pic_init(np);
  61        of_node_put(np);
  62}
  63
  64/*
  65 * Setup the architecture
  66 */
  67static void __init socrates_setup_arch(void)
  68{
  69        if (ppc_md.progress)
  70                ppc_md.progress("socrates_setup_arch()", 0);
  71
  72        fsl_pci_assign_primary();
  73}
  74
  75machine_arch_initcall(socrates, mpc85xx_common_publish_devices);
  76
  77/*
  78 * Called very early, device-tree isn't unflattened
  79 */
  80static int __init socrates_probe(void)
  81{
  82        unsigned long root = of_get_flat_dt_root();
  83
  84        if (of_flat_dt_is_compatible(root, "abb,socrates"))
  85                return 1;
  86
  87        return 0;
  88}
  89
  90define_machine(socrates) {
  91        .name                   = "Socrates",
  92        .probe                  = socrates_probe,
  93        .setup_arch             = socrates_setup_arch,
  94        .init_IRQ               = socrates_pic_init,
  95        .get_irq                = mpic_get_irq,
  96        .restart                = fsl_rstcr_restart,
  97        .calibrate_decr         = generic_calibrate_decr,
  98        .progress               = udbg_progress,
  99};
 100