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/*
* arch/powerpc/platforms/83xx/mpc834x_sys.c
*
* MPC834x SYS 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"
#ifndef CONFIG_PCI
unsigned long isa_io_base = 0;
unsigned long isa_mem_base = 0;
#endif
/* ************************************************************************
*
* Setup the architecture
*
*/
static void __init mpc834x_sys_setup_arch(void)
{
struct device_node *np;
if (ppc_md.progress)
ppc_md.progress("mpc834x_sys_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
}
static void __init mpc834x_sys_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();
}
#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
extern ulong ds1374_get_rtc_time(void);
extern int ds1374_set_rtc_time(ulong);
static int __init mpc834x_rtc_hookup(void)
{
struct timespec tv;
ppc_md.get_rtc_time = ds1374_get_rtc_time;
ppc_md.set_rtc_time = ds1374_set_rtc_time;
tv.tv_nsec = 0;
tv.tv_sec = (ppc_md.get_rtc_time) ();
do_settimeofday(&tv);
return 0;
}
late_initcall(mpc834x_rtc_hookup);
#endif
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
static int __init mpc834x_sys_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_sys) {
.name = "MPC834x SYS",
.probe = mpc834x_sys_probe,
.setup_arch = mpc834x_sys_setup_arch,
.init_IRQ = mpc834x_sys_init_IRQ,
.get_irq = ipic_get_irq,
.restart = mpc83xx_restart,
.time_init = mpc83xx_time_init,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};
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