80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/*
|
|
* Generic PowerPC 40x platform support
|
|
*
|
|
* Copyright 2008 IBM Corporation
|
|
*
|
|
* 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; version 2 of the License.
|
|
*
|
|
* 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/prom.h>
|
|
#include <asm/time.h>
|
|
#include <asm/udbg.h>
|
|
#include <asm/uic.h>
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/of_platform.h>
|
|
|
|
static __initdata struct of_device_id ppc40x_of_bus[] = {
|
|
{ .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 *board[] __initdata = {
|
|
"amcc,acadia",
|
|
"amcc,haleakala",
|
|
"amcc,kilauea",
|
|
"amcc,makalu",
|
|
"est,hotfoot"
|
|
};
|
|
|
|
static int __init ppc40x_probe(void)
|
|
{
|
|
if (of_flat_dt_match(of_get_flat_dt_root(), board)) {
|
|
ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
define_machine(ppc40x_simple) {
|
|
.name = "PowerPC 40x Platform",
|
|
.probe = ppc40x_probe,
|
|
.progress = udbg_progress,
|
|
.init_IRQ = uic_init_tree,
|
|
.get_irq = uic_get_irq,
|
|
.restart = ppc4xx_reset_system,
|
|
.calibrate_decr = generic_calibrate_decr,
|
|
};
|