86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/*
|
|
* Support for 'mpc5200-simple-platform' compatible boards.
|
|
*
|
|
* Written by Marian Balakowicz <m8@semihalf.com>
|
|
* Copyright (C) 2007 Semihalf
|
|
*
|
|
* 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.
|
|
*
|
|
* Description:
|
|
* This code implements support for a simple MPC52xx based boards which
|
|
* do not need a custom platform specific setup. Such boards are
|
|
* supported assuming the following:
|
|
*
|
|
* - GPIO pins are configured by the firmware,
|
|
* - CDM configuration (clocking) is setup correctly by firmware,
|
|
* - if the 'fsl,has-wdt' property is present in one of the
|
|
* gpt nodes, then it is safe to use such gpt to reset the board,
|
|
* - PCI is supported if enabled in the kernel configuration
|
|
* and if there is a PCI bus node defined in the device tree.
|
|
*
|
|
* Boards that are compatible with this generic platform support
|
|
* are listed in a 'board' table.
|
|
*/
|
|
|
|
#undef DEBUG
|
|
#include <asm/time.h>
|
|
#include <asm/prom.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/mpc52xx.h>
|
|
|
|
/*
|
|
* Setup the architecture
|
|
*/
|
|
static void __init mpc5200_simple_setup_arch(void)
|
|
{
|
|
if (ppc_md.progress)
|
|
ppc_md.progress("mpc5200_simple_setup_arch()", 0);
|
|
|
|
/* Map important registers from the internal memory map */
|
|
mpc52xx_map_common_devices();
|
|
|
|
/* Some mpc5200 & mpc5200b related configuration */
|
|
mpc5200_setup_xlb_arbiter();
|
|
|
|
mpc52xx_setup_pci();
|
|
}
|
|
|
|
/* list of the supported boards */
|
|
static const char *board[] __initdata = {
|
|
"anonymous,a3m071",
|
|
"anonymous,a4m072",
|
|
"anon,charon",
|
|
"ifm,o2d",
|
|
"intercontrol,digsy-mtc",
|
|
"manroland,mucmc52",
|
|
"manroland,uc101",
|
|
"phytec,pcm030",
|
|
"phytec,pcm032",
|
|
"promess,motionpro",
|
|
"schindler,cm5200",
|
|
"tqc,tqm5200",
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* Called very early, MMU is off, device-tree isn't unflattened
|
|
*/
|
|
static int __init mpc5200_simple_probe(void)
|
|
{
|
|
return of_device_compatible_match(of_root, board);
|
|
}
|
|
|
|
define_machine(mpc5200_simple_platform) {
|
|
.name = "mpc5200-simple-platform",
|
|
.probe = mpc5200_simple_probe,
|
|
.setup_arch = mpc5200_simple_setup_arch,
|
|
.init = mpc52xx_declare_of_platform_devices,
|
|
.init_IRQ = mpc52xx_init_irq,
|
|
.get_irq = mpc52xx_get_irq,
|
|
.restart = mpc52xx_restart,
|
|
.calibrate_decr = generic_calibrate_decr,
|
|
};
|