arch/powerpc/platforms/83xx/sbc834x.c

   1 /*
   2  * arch/powerpc/platforms/83xx/sbc834x.c
   3  *
   4  * Wind River SBC834x board specific routines
   5  *
   6  * By Paul Gortmaker (see MAINTAINERS for contact information)
   7  *
   8  * Based largely on the mpc834x_mds.c support by Kumar Gala.
   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/stddef.h>
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/errno.h>
  20 #include <linux/reboot.h>
  21 #include <linux/pci.h>
  22 #include <linux/kdev_t.h>
  23 #include <linux/major.h>
  24 #include <linux/console.h>
  25 #include <linux/delay.h>
  26 #include <linux/seq_file.h>
  27 #include <linux/root_dev.h>
  28 #include <linux/of_platform.h>
  29
  30 #include <asm/system.h>
  31 #include <linux/atomic.h>
  32 #include <asm/time.h>
  33 #include <asm/io.h>
  34 #include <asm/machdep.h>
  35 #include <asm/ipic.h>
  36 #include <asm/irq.h>
  37 #include <asm/prom.h>
  38 #include <asm/udbg.h>
  39 #include <sysdev/fsl_soc.h>
  40 #include <sysdev/fsl_pci.h>
  41
  42 #include "mpc83xx.h"
  43
  44 /* ************************************************************************
  45  *
  46  * Setup the architecture
  47  *
  48  */
  49 static void __init sbc834x_setup_arch(void)
  50 {
  51 #ifdef CONFIG_PCI
  52         struct device_node *np;
  53 #endif
  54
  55         if (ppc_md.progress)
  56                 ppc_md.progress("sbc834x_setup_arch()", 0);
  57
  58 #ifdef CONFIG_PCI
  59         for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
  60                 mpc83xx_add_bridge(np);
  61 #endif
  62
  63 }
  64
  65 machine_device_initcall(sbc834x, mpc83xx_declare_of_platform_devices);
  66
  67 /*
  68  * Called very early, MMU is off, device-tree isn't unflattened
  69  */
  70 static int __init sbc834x_probe(void)
  71 {
  72         unsigned long root = of_get_flat_dt_root();
  73
  74         return of_flat_dt_is_compatible(root, "SBC834x");
  75 }
  76
  77 define_machine(sbc834x) {
  78         .name                   = "SBC834x",
  79         .probe                  = sbc834x_probe,
  80         .setup_arch             = sbc834x_setup_arch,
  81         .init_IRQ               = mpc83xx_ipic_init_IRQ,
  82         .get_irq                = ipic_get_irq,
  83         .restart                = mpc83xx_restart,
  84         .time_init              = mpc83xx_time_init,
  85         .calibrate_decr         = generic_calibrate_decr,
  86         .progress               = udbg_progress,
  87 };