linux/arch/powerpc/platforms/44x/ebony.c
Christophe Leroy 0aafbdf35c powerpc: Make generic_calibrate_decr() the default
ppc_md.calibrate_decr() is a mandatory item. Its nullity is never
checked so it must be non null on all platforms.

Most platforms define generic_calibrate_decr() as their
ppc_md.calibrate_decr(). Have time_init() call
generic_calibrate_decr() when ppc_md.calibrate_decr() is NULL,
and remove default assignment from all machines.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/6cb9865d916231c38401ba34ad1a98c249fae135.1676711562.git.christophe.leroy@csgroup.eu
2023-03-16 08:56:48 +11:00

62 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Ebony board specific routines
*
* Matt Porter <mporter@kernel.crashing.org>
* Copyright 2002-2005 MontaVista Software Inc.
*
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
* Copyright (c) 2003-2005 Zultys Technologies
*
* Rewritten and ported to the merged powerpc tree:
* Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
*/
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/rtc.h>
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/udbg.h>
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include <asm/ppc4xx.h>
static const struct of_device_id ebony_of_bus[] __initconst = {
{ .compatible = "ibm,plb4", },
{ .compatible = "ibm,opb", },
{ .compatible = "ibm,ebc", },
{},
};
static int __init ebony_device_probe(void)
{
of_platform_bus_probe(NULL, ebony_of_bus, NULL);
of_instantiate_rtc();
return 0;
}
machine_device_initcall(ebony, ebony_device_probe);
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
static int __init ebony_probe(void)
{
pci_set_flags(PCI_REASSIGN_ALL_RSRC);
return 1;
}
define_machine(ebony) {
.name = "Ebony",
.compatible = "ibm,ebony",
.probe = ebony_probe,
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc4xx_reset_system,
};