p5020_ds.c

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/*
 * P5020 DS Setup
 *
 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
 *
 * Copyright 2009-2010 Freescale Semiconductor Inc.
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/phy.h>

#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <mm/mmu_decl.h>
#include <asm/prom.h>
#include <asm/udbg.h>
#include <asm/mpic.h>

#include <linux/of_platform.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include <asm/ehv_pic.h>

#include "corenet_ds.h"

/*
 * Called very early, device-tree isn't unflattened
 */
static int __init p5020_ds_probe(void)
{
    unsigned long root = of_get_flat_dt_root();
#ifdef CONFIG_SMP
    extern struct smp_ops_t smp_85xx_ops;
#endif

    if (of_flat_dt_is_compatible(root, "fsl,P5020DS"))
        return 1;

    /* Check if we're running under the Freescale hypervisor */
    if (of_flat_dt_is_compatible(root, "fsl,P5020DS-hv")) {
        ppc_md.init_IRQ = ehv_pic_init;
        ppc_md.get_irq = ehv_pic_get_irq;
        ppc_md.restart = fsl_hv_restart;
        ppc_md.power_off = fsl_hv_halt;
        ppc_md.halt = fsl_hv_halt;
#ifdef CONFIG_SMP
        /*
         * Disable the timebase sync operations because we can't write
         * to the timebase registers under the hypervisor.
          */
        smp_85xx_ops.give_timebase = NULL;
        smp_85xx_ops.take_timebase = NULL;
#endif
        return 1;
    }

    return 0;
}

define_machine(p5020_ds) {
    .name           = "P5020 DS",
    .probe          = p5020_ds_probe,
    .setup_arch     = corenet_ds_setup_arch,
    .init_IRQ       = corenet_ds_pic_init,
#ifdef CONFIG_PCI
    .pcibios_fixup_bus  = fsl_pcibios_fixup_bus,
#endif
/* coreint doesn't play nice with lazy EE, use legacy mpic for now */
#ifdef CONFIG_PPC64
    .get_irq        = mpic_get_irq,
#else
    .get_irq        = mpic_get_coreint_irq,
#endif
    .restart        = fsl_rstcr_restart,
    .calibrate_decr     = generic_calibrate_decr,
    .progress       = udbg_progress,
#ifdef CONFIG_PPC64
    .power_save     = book3e_idle,
#else
    .power_save     = e500_idle,
#endif
};

machine_arch_initcall(p5020_ds, corenet_ds_publish_devices);

#ifdef CONFIG_SWIOTLB
machine_arch_initcall(p5020_ds, swiotlb_setup_bus_notifier);
#endif