linux/arch/powerpc/platforms/83xx/mpc834x_itx.c
Benjamin Herrenschmidt 5657138404 powerpc: Move 32-bit probe() machine to later in the boot process
This converts all the 32-bit platforms to use the expanded device-tree
which is a pretty mechanical change. Unlike 64-bit, the 32-bit kernel
didn't rely on platform initializations to setup the MMU since it
sets it up entirely before probe_machine() so the move has comparatively
less consequences though it's a bigger patch.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-21 19:06:42 +10:00

87 lines
2.1 KiB
C

/*
* arch/powerpc/platforms/83xx/mpc834x_itx.c
*
* MPC834x ITX board specific routines
*
* Maintainer: Kumar Gala <galak@kernel.crashing.org>
*
* 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.
*/
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/reboot.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/major.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/root_dev.h>
#include <linux/of_platform.h>
#include <linux/atomic.h>
#include <asm/time.h>
#include <asm/io.h>
#include <asm/machdep.h>
#include <asm/ipic.h>
#include <asm/irq.h>
#include <asm/prom.h>
#include <asm/udbg.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include "mpc83xx.h"
static const struct of_device_id mpc834x_itx_ids[] __initconst = {
{ .compatible = "fsl,pq2pro-localbus", },
{},
};
static int __init mpc834x_itx_declare_of_platform_devices(void)
{
mpc83xx_declare_of_platform_devices();
return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL);
}
machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices);
/* ************************************************************************
*
* Setup the architecture
*
*/
static void __init mpc834x_itx_setup_arch(void)
{
if (ppc_md.progress)
ppc_md.progress("mpc834x_itx_setup_arch()", 0);
mpc83xx_setup_pci();
mpc834x_usb_cfg();
}
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
static int __init mpc834x_itx_probe(void)
{
return of_machine_is_compatible("MPC834xMITX");
}
define_machine(mpc834x_itx) {
.name = "MPC834x ITX",
.probe = mpc834x_itx_probe,
.setup_arch = mpc834x_itx_setup_arch,
.init_IRQ = mpc83xx_ipic_init_IRQ,
.get_irq = ipic_get_irq,
.restart = mpc83xx_restart,
.time_init = mpc83xx_time_init,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};