LXR linux/arch/powerpc/platforms/83xx/mpc834x

   1/*
   2 * arch/powerpc/platforms/83xx/mpc834x_itx.c
   3 *
   4 * MPC834x ITX board specific routines
   5 *
   6 * Maintainer: Kumar Gala <galak@kernel.crashing.org>
   7 *
   8 * This program is free software; you can redistribute  it and/or modify it
   9 * under  the terms of  the GNU General  Public License as published by the
  10 * Free Software Foundation;  either version 2 of the  License, or (at your
  11 * option) any later version.
  12 */
  13
  14#include <linux/stddef.h>
  15#include <linux/kernel.h>
  16#include <linux/init.h>
  17#include <linux/errno.h>
  18#include <linux/reboot.h>
  19#include <linux/pci.h>
  20#include <linux/kdev_t.h>
  21#include <linux/major.h>
  22#include <linux/console.h>
  23#include <linux/delay.h>
  24#include <linux/seq_file.h>
  25#include <linux/root_dev.h>
  26#include <linux/of_platform.h>
  27
  28#include <asm/system.h>
  29#include <asm/atomic.h>
  30#include <asm/time.h>
  31#include <asm/io.h>
  32#include <asm/machdep.h>
  33#include <asm/ipic.h>
  34#include <asm/irq.h>
  35#include <asm/prom.h>
  36#include <asm/udbg.h>
  37#include <sysdev/fsl_soc.h>
  38
  39#include "mpc83xx.h"
  40
  41static struct of_device_id __initdata mpc834x_itx_ids[] = {
  42        { .compatible = "fsl,pq2pro-localbus", },
  43        {},
  44};
  45
  46static int __init mpc834x_itx_declare_of_platform_devices(void)
  47{
  48        return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL);
  49}
  50machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices);
  51
  52/* ************************************************************************
  53 *
  54 * Setup the architecture
  55 *
  56 */
  57static void __init mpc834x_itx_setup_arch(void)
  58{
  59#ifdef CONFIG_PCI
  60        struct device_node *np;
  61#endif
  62
  63        if (ppc_md.progress)
  64                ppc_md.progress("mpc834x_itx_setup_arch()", 0);
  65
  66#ifdef CONFIG_PCI
  67        for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
  68                mpc83xx_add_bridge(np);
  69#endif
  70
  71        mpc834x_usb_cfg();
  72}
  73
  74static void __init mpc834x_itx_init_IRQ(void)
  75{
  76        struct device_node *np;
  77
  78        np = of_find_node_by_type(NULL, "ipic");
  79        if (!np)
  80                return;
  81
  82        ipic_init(np, 0);
  83
  84        /* Initialize the default interrupt mapping priorities,
  85         * in case the boot rom changed something on us.
  86         */
  87        ipic_set_default_priority();
  88}
  89
  90/*
  91 * Called very early, MMU is off, device-tree isn't unflattened
  92 */
  93static int __init mpc834x_itx_probe(void)
  94{
  95        unsigned long root = of_get_flat_dt_root();
  96
  97        return of_flat_dt_is_compatible(root, "MPC834xMITX");
  98}
  99
 100define_machine(mpc834x_itx) {
 101        .name                   = "MPC834x ITX",
 102        .probe                  = mpc834x_itx_probe,
 103        .setup_arch             = mpc834x_itx_setup_arch,
 104        .init_IRQ               = mpc834x_itx_init_IRQ,
 105        .get_irq                = ipic_get_irq,
 106        .restart                = mpc83xx_restart,
 107        .time_init              = mpc83xx_time_init,
 108        .calibrate_decr         = generic_calibrate_decr,
 109        .progress               = udbg_progress,
 110};
 111