arch/powerpc/platforms/85xx/p3060_qds.c

   1 /*
   2  * P3060 QDS Setup
   3  *
   4  * Copyright 2011 Freescale Semiconductor Inc.
   5  *
   6  * This program is free software; you can redistribute  it and/or modify it
   7  * under  the terms of  the GNU General  Public License as published by the
   8  * Free Software Foundation;  either version 2 of the  License, or (at your
   9  * option) any later version.
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/phy.h>
  15 #include <asm/machdep.h>
  16 #include <asm/udbg.h>
  17 #include <asm/mpic.h>
  18 #include <linux/of_platform.h>
  19 #include <sysdev/fsl_soc.h>
  20 #include <sysdev/fsl_pci.h>
  21 #include <asm/ehv_pic.h>
  22 #include "corenet_ds.h"
  23
  24 /*
  25  * Called very early, device-tree isn't unflattened
  26  */
  27 static int __init p3060_qds_probe(void)
  28 {
  29         unsigned long root = of_get_flat_dt_root();
  30 #ifdef CONFIG_SMP
  31         extern struct smp_ops_t smp_85xx_ops;
  32 #endif
  33
  34         if (of_flat_dt_is_compatible(root, "fsl,P3060QDS"))
  35                 return 1;
  36
  37         /* Check if we're running under the Freescale hypervisor */
  38         if (of_flat_dt_is_compatible(root, "fsl,P3060QDS-hv")) {
  39                 ppc_md.init_IRQ = ehv_pic_init;
  40                 ppc_md.get_irq = ehv_pic_get_irq;
  41                 ppc_md.restart = fsl_hv_restart;
  42                 ppc_md.power_off = fsl_hv_halt;
  43                 ppc_md.halt = fsl_hv_halt;
  44 #ifdef CONFIG_SMP
  45                 /*
  46                  * Disable the timebase sync operations because we can't write
  47                  * to the timebase registers under the hypervisor.
  48                  */
  49                 smp_85xx_ops.give_timebase = NULL;
  50                 smp_85xx_ops.take_timebase = NULL;
  51 #endif
  52                 return 1;
  53         }
  54
  55         return 0;
  56 }
  57
  58 define_machine(p3060_qds) {
  59         .name                   = "P3060 QDS",
  60         .probe                  = p3060_qds_probe,
  61         .setup_arch             = corenet_ds_setup_arch,
  62         .init_IRQ               = corenet_ds_pic_init,
  63 #ifdef CONFIG_PCI
  64         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
  65 #endif
  66         .get_irq                = mpic_get_coreint_irq,
  67         .restart                = fsl_rstcr_restart,
  68         .calibrate_decr         = generic_calibrate_decr,
  69         .progress               = udbg_progress,
  70         .power_save             = e500_idle,
  71 };
  72
  73 machine_device_initcall(p3060_qds, declare_of_platform_devices);
  74
  75 #ifdef CONFIG_SWIOTLB
  76 machine_arch_initcall(p3060_qds, swiotlb_setup_bus_notifier);
  77 #endif