/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 <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#include <sysdev/fsl_pci.h>
 39
 40#include "mpc83xx.h"
 41
 42static struct of_device_id __initdata mpc834x_itx_ids[] = {
 43	{ .compatible = "fsl,pq2pro-localbus", },
 44	{ .compatible = "simple-bus", },
 45	{ .compatible = "gianfar", },
 46	{},
 47};
 48
 49static int __init mpc834x_itx_declare_of_platform_devices(void)
 50{
 51	return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL);
 52}
 53machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices);
 54
 55/* ************************************************************************
 56 *
 57 * Setup the architecture
 58 *
 59 */
 60static void __init mpc834x_itx_setup_arch(void)
 61{
 62#ifdef CONFIG_PCI
 63	struct device_node *np;
 64#endif
 65
 66	if (ppc_md.progress)
 67		ppc_md.progress("mpc834x_itx_setup_arch()", 0);
 68
 69#ifdef CONFIG_PCI
 70	for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
 71		mpc83xx_add_bridge(np);
 72#endif
 73
 74	mpc834x_usb_cfg();
 75}
 76
 77static void __init mpc834x_itx_init_IRQ(void)
 78{
 79	struct device_node *np;
 80
 81	np = of_find_node_by_type(NULL, "ipic");
 82	if (!np)
 83		return;
 84
 85	ipic_init(np, 0);
 86
 87	/* Initialize the default interrupt mapping priorities,
 88	 * in case the boot rom changed something on us.
 89	 */
 90	ipic_set_default_priority();
 91}
 92
 93/*
 94 * Called very early, MMU is off, device-tree isn't unflattened
 95 */
 96static int __init mpc834x_itx_probe(void)
 97{
 98        unsigned long root = of_get_flat_dt_root();
 99
100        return of_flat_dt_is_compatible(root, "MPC834xMITX");
101}
102
103define_machine(mpc834x_itx) {
104	.name			= "MPC834x ITX",
105	.probe			= mpc834x_itx_probe,
106	.setup_arch		= mpc834x_itx_setup_arch,
107	.init_IRQ		= mpc834x_itx_init_IRQ,
108	.get_irq		= ipic_get_irq,
109	.restart		= mpc83xx_restart,
110	.time_init		= mpc83xx_time_init,
111	.calibrate_decr		= generic_calibrate_decr,
112	.progress		= udbg_progress,
113};