arch/powerpc/platforms/83xx/mpc834x_itx.c

   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 <linux/atomic.h>
  29 #include <asm/time.h>
  30 #include <asm/io.h>
  31 #include <asm/machdep.h>
  32 #include <asm/ipic.h>
  33 #include <asm/irq.h>
  34 #include <asm/prom.h>
  35 #include <asm/udbg.h>
  36 #include <sysdev/fsl_soc.h>
  37 #include <sysdev/fsl_pci.h>
  38
  39 #include "mpc83xx.h"
  40
  41 static const struct of_device_id mpc834x_itx_ids[] __initconst = {
  42         { .compatible = "fsl,pq2pro-localbus", },
  43         {},
  44 };
  45
  46 static int __init mpc834x_itx_declare_of_platform_devices(void)
  47 {
  48         mpc83xx_declare_of_platform_devices();
  49         return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL);
  50 }
  51 machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices);
  52
  53 /* ************************************************************************
  54  *
  55  * Setup the architecture
  56  *
  57  */
  58 static void __init mpc834x_itx_setup_arch(void)
  59 {
  60         if (ppc_md.progress)
  61                 ppc_md.progress("mpc834x_itx_setup_arch()", 0);
  62
  63         mpc83xx_setup_pci();
  64
  65         mpc834x_usb_cfg();
  66 }
  67
  68 /*
  69  * Called very early, MMU is off, device-tree isn't unflattened
  70  */
  71 static int __init mpc834x_itx_probe(void)
  72 {
  73         unsigned long root = of_get_flat_dt_root();
  74
  75         return of_flat_dt_is_compatible(root, "MPC834xMITX");
  76 }
  77
  78 define_machine(mpc834x_itx) {
  79         .name                   = "MPC834x ITX",
  80         .probe                  = mpc834x_itx_probe,
  81         .setup_arch             = mpc834x_itx_setup_arch,
  82         .init_IRQ               = mpc83xx_ipic_init_IRQ,
  83         .get_irq                = ipic_get_irq,
  84         .restart                = mpc83xx_restart,
  85         .time_init              = mpc83xx_time_init,
  86         .calibrate_decr         = generic_calibrate_decr,
  87         .progress               = udbg_progress,
  88 };