6c12c18dfb
This reverts commit a8ed4f7ec3.
As advised by David Brownell:
http://marc.theaimsgroup.com/?l=linux-kernel&m=116387226902131&w=2
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
125 lines
2.8 KiB
C
125 lines
2.8 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 <asm/system.h>
|
|
#include <asm/atomic.h>
|
|
#include <asm/time.h>
|
|
#include <asm/io.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/ipic.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/prom.h>
|
|
#include <asm/udbg.h>
|
|
#include <sysdev/fsl_soc.h>
|
|
|
|
#include "mpc83xx.h"
|
|
|
|
#include <platforms/83xx/mpc834x_sys.h>
|
|
|
|
#ifndef CONFIG_PCI
|
|
unsigned long isa_io_base = 0;
|
|
unsigned long isa_mem_base = 0;
|
|
#endif
|
|
|
|
/* ************************************************************************
|
|
*
|
|
* Setup the architecture
|
|
*
|
|
*/
|
|
static void __init mpc834x_itx_setup_arch(void)
|
|
{
|
|
struct device_node *np;
|
|
|
|
if (ppc_md.progress)
|
|
ppc_md.progress("mpc834x_itx_setup_arch()", 0);
|
|
|
|
np = of_find_node_by_type(NULL, "cpu");
|
|
if (np != 0) {
|
|
const unsigned int *fp =
|
|
get_property(np, "clock-frequency", NULL);
|
|
if (fp != 0)
|
|
loops_per_jiffy = *fp / HZ;
|
|
else
|
|
loops_per_jiffy = 50000000 / HZ;
|
|
of_node_put(np);
|
|
}
|
|
#ifdef CONFIG_PCI
|
|
for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
|
|
add_bridge(np);
|
|
|
|
ppc_md.pci_exclude_device = mpc83xx_exclude_device;
|
|
#endif
|
|
|
|
#ifdef CONFIG_ROOT_NFS
|
|
ROOT_DEV = Root_NFS;
|
|
#else
|
|
ROOT_DEV = Root_HDA1;
|
|
#endif
|
|
}
|
|
|
|
void __init mpc834x_itx_init_IRQ(void)
|
|
{
|
|
struct device_node *np;
|
|
|
|
np = of_find_node_by_type(NULL, "ipic");
|
|
if (!np)
|
|
return;
|
|
|
|
ipic_init(np, 0);
|
|
|
|
/* Initialize the default interrupt mapping priorities,
|
|
* in case the boot rom changed something on us.
|
|
*/
|
|
ipic_set_default_priority();
|
|
}
|
|
|
|
/*
|
|
* Called very early, MMU is off, device-tree isn't unflattened
|
|
*/
|
|
static int __init mpc834x_itx_probe(void)
|
|
{
|
|
/* We always match for now, eventually we should look at the flat
|
|
dev tree to ensure this is the board we are suppose to run on
|
|
*/
|
|
return 1;
|
|
}
|
|
|
|
define_machine(mpc834x_itx) {
|
|
.name = "MPC834x ITX",
|
|
.probe = mpc834x_itx_probe,
|
|
.setup_arch = mpc834x_itx_setup_arch,
|
|
.init_IRQ = mpc834x_itx_init_IRQ,
|
|
.get_irq = ipic_get_irq,
|
|
.restart = mpc83xx_restart,
|
|
.time_init = mpc83xx_time_init,
|
|
.calibrate_decr = generic_calibrate_decr,
|
|
.progress = udbg_progress,
|
|
#ifdef CONFIG_PCI
|
|
.pcibios_fixup = mpc83xx_pcibios_fixup,
|
|
#endif
|
|
};
|