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/*
* B4 QDS Setup
* Should apply for QDS platform of B4860 and it's personalities.
* viz B4860/B4420/B4220QDS
*
* Copyright 2012 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 b4_qds_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,B4860QDS")) ||
(of_flat_dt_is_compatible(root, "fsl,B4420QDS")) ||
(of_flat_dt_is_compatible(root, "fsl,B4220QDS")))
return 1;
/* Check if we're running under the Freescale hypervisor */
if ((of_flat_dt_is_compatible(root, "fsl,B4860QDS-hv")) ||
(of_flat_dt_is_compatible(root, "fsl,B4420QDS-hv")) ||
(of_flat_dt_is_compatible(root, "fsl,B4220QDS-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(b4_qds) {
.name = "B4 QDS",
.probe = b4_qds_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(b4_qds, corenet_ds_publish_devices);
#ifdef CONFIG_SWIOTLB
machine_arch_initcall(b4_qds, swiotlb_setup_bus_notifier);
#endif
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