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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Freescale P2020 board Setup
*
* Copyright 2007,2009,2012-2013 Freescale Semiconductor Inc.
* Copyright 2022-2023 Pali Rohár <pali@kernel.org>
*/
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <asm/machdep.h>
#include <asm/udbg.h>
#include <asm/mpic.h>
#include <asm/swiotlb.h>
#include <asm/ppc-pci.h>
#include <sysdev/fsl_pci.h>
#include "smp.h"
#include "mpc85xx.h"
static void __init p2020_pic_init(void)
{
struct mpic *mpic;
int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU;
mpic = mpic_alloc(NULL, 0, flags, 0, 256, " OpenPIC ");
if (WARN_ON(!mpic))
return;
mpic_init(mpic);
mpc85xx_8259_init();
}
/*
* Setup the architecture
*/
static void __init p2020_setup_arch(void)
{
swiotlb_detect_4g();
fsl_pci_assign_primary();
uli_init();
mpc85xx_smp_init();
mpc85xx_qe_par_io_init();
}
/*
* Called very early, device-tree isn't unflattened
*/
static int __init p2020_probe(void)
{
struct device_node *p2020_cpu;
/*
* There is no common compatible string for all P2020 boards.
* The only common thing is "PowerPC,P2020@0" cpu node.
* So check for P2020 board via this cpu node.
*/
p2020_cpu = of_find_node_by_path("/cpus/PowerPC,P2020@0");
of_node_put(p2020_cpu);
return !!p2020_cpu;
}
machine_arch_initcall(p2020, mpc85xx_common_publish_devices);
define_machine(p2020) {
.name = "Freescale P2020",
.probe = p2020_probe,
.setup_arch = p2020_setup_arch,
.init_IRQ = p2020_pic_init,
#ifdef CONFIG_PCI
.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
.pcibios_fixup_phb = fsl_pcibios_fixup_phb,
#endif
.get_irq = mpic_get_irq,
.progress = udbg_progress,
};
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