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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/powerpc/platforms/52xx/mpc5200_simple.c
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/*

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 * Support for 'mpc5200-simple-platform' compatible boards.

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 *

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 * Written by Marian Balakowicz <[email protected]>

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 * Copyright (C) 2007 Semihalf

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 *

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 * This program is free software; you can redistribute  it and/or modify it

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 * under  the terms of  the GNU General  Public License as published by the

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 * Free Software Foundation;  either version 2 of the  License, or (at your

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 * option) any later version.

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 *

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 * Description:

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 * This code implements support for a simple MPC52xx based boards which

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 * do not need a custom platform specific setup. Such boards are

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 * supported assuming the following:

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 *

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 * - GPIO pins are configured by the firmware,

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 * - CDM configuration (clocking) is setup correctly by firmware,

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 * - if the 'fsl,has-wdt' property is present in one of the

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 *   gpt nodes, then it is safe to use such gpt to reset the board,

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 * - PCI is supported if enabled in the kernel configuration

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 *   and if there is a PCI bus node defined in the device tree.

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 *

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 * Boards that are compatible with this generic platform support

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 * are listed in a 'board' table.

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 */

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#undef DEBUG

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#include <asm/time.h>

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#include <asm/prom.h>

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#include <asm/machdep.h>

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#include <asm/mpc52xx.h>

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/*

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 * Setup the architecture

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 */

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static void __init mpc5200_simple_setup_arch(void)

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{

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	if (ppc_md.progress)

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		ppc_md.progress("mpc5200_simple_setup_arch()", 0);

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	/* Map important registers from the internal memory map */

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	mpc52xx_map_common_devices();

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	/* Some mpc5200 & mpc5200b related configuration */

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	mpc5200_setup_xlb_arbiter();

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	mpc52xx_setup_pci();

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}

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/* list of the supported boards */

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static const char *board[] __initdata = {

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	"intercontrol,digsy-mtc",

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	"manroland,mucmc52",

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	"manroland,uc101",

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	"phytec,pcm030",

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	"phytec,pcm032",

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	"promess,motionpro",

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	"schindler,cm5200",

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	"tqc,tqm5200",

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	NULL

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};

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/*

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 * Called very early, MMU is off, device-tree isn't unflattened

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 */

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static int __init mpc5200_simple_probe(void)

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{

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	return of_flat_dt_match(of_get_flat_dt_root(), board);

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}

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define_machine(mpc5200_simple_platform) {

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	.name		= "mpc5200-simple-platform",

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	.probe		= mpc5200_simple_probe,

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	.setup_arch	= mpc5200_simple_setup_arch,

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	.init		= mpc52xx_declare_of_platform_devices,

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	.init_IRQ	= mpc52xx_init_irq,

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	.get_irq	= mpc52xx_get_irq,

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	.restart	= mpc52xx_restart,

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	.calibrate_decr	= generic_calibrate_decr,

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};

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