mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 16:38:12 +00:00
28da734d58
Most probe functions that do not use the 'compatible' string do nothing else than checking whether the machine is compatible with one of the strings in a NULL terminated table of strings. Define that table of strings in ppc_md structure and check it directly from probe_machine() instead of using ppc_md.probe() for that. Keep checking in ppc_md.probe() only for more complex probing. All .compatible could be replaced with a single element NULL terminated list but that's not worth the churn. Can be do incrementaly in follow-up patches. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20231214103152.12269-4-mpe@ellerman.id.au
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Generic PowerPC 40x platform support
|
|
*
|
|
* Copyright 2008 IBM Corporation
|
|
*
|
|
* This implements simple platform support for PowerPC 44x chips. This is
|
|
* mostly used for eval boards or other simple and "generic" 44x boards. If
|
|
* your board has custom functions or hardware, then you will likely want to
|
|
* implement your own board.c file to accommodate it.
|
|
*/
|
|
|
|
#include <asm/machdep.h>
|
|
#include <asm/pci-bridge.h>
|
|
#include <asm/ppc4xx.h>
|
|
#include <asm/time.h>
|
|
#include <asm/udbg.h>
|
|
#include <asm/uic.h>
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/of_platform.h>
|
|
|
|
static const struct of_device_id ppc40x_of_bus[] __initconst = {
|
|
{ .compatible = "ibm,plb3", },
|
|
{ .compatible = "ibm,plb4", },
|
|
{ .compatible = "ibm,opb", },
|
|
{ .compatible = "ibm,ebc", },
|
|
{ .compatible = "simple-bus", },
|
|
{},
|
|
};
|
|
|
|
static int __init ppc40x_device_probe(void)
|
|
{
|
|
of_platform_bus_probe(NULL, ppc40x_of_bus, NULL);
|
|
|
|
return 0;
|
|
}
|
|
machine_device_initcall(ppc40x_simple, ppc40x_device_probe);
|
|
|
|
/* This is the list of boards that can be supported by this simple
|
|
* platform code. This does _not_ mean the boards are compatible,
|
|
* as they most certainly are not from a device tree perspective.
|
|
* However, their differences are handled by the device tree and the
|
|
* drivers and therefore they don't need custom board support files.
|
|
*
|
|
* Again, if your board needs to do things differently then create a
|
|
* board.c file for it rather than adding it to this list.
|
|
*/
|
|
static const char * const board[] __initconst = {
|
|
"amcc,acadia",
|
|
"amcc,haleakala",
|
|
"amcc,kilauea",
|
|
"amcc,makalu",
|
|
"apm,klondike",
|
|
"est,hotfoot",
|
|
"plathome,obs600",
|
|
NULL
|
|
};
|
|
|
|
static int __init ppc40x_probe(void)
|
|
{
|
|
pci_set_flags(PCI_REASSIGN_ALL_RSRC);
|
|
return 1;
|
|
}
|
|
|
|
define_machine(ppc40x_simple) {
|
|
.name = "PowerPC 40x Platform",
|
|
.compatibles = board,
|
|
.probe = ppc40x_probe,
|
|
.progress = udbg_progress,
|
|
.init_IRQ = uic_init_tree,
|
|
.get_irq = uic_get_irq,
|
|
.restart = ppc4xx_reset_system,
|
|
};
|