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/*
* Copyright 2008-2011, IBM Corporation
*
* 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/delay.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/of.h>
#include <linux/smp.h>
#include <asm/machdep.h>
#include <asm/system.h>
#include <asm/time.h>
#include <asm/udbg.h>
#include "ics.h"
#include "wsp.h"
static void psr2_spin(void)
{
hard_irq_disable();
for (;;) ;
}
static void psr2_restart(char *cmd)
{
psr2_spin();
}
static int psr2_probe_devices(void)
{
struct device_node *np;
/* Our RTC is a ds1500. It seems to be programatically compatible
* with the ds1511 for which we have a driver so let's use that
*/
np = of_find_compatible_node(NULL, NULL, "dallas,ds1500");
if (np != NULL) {
struct resource res;
if (of_address_to_resource(np, 0, &res) == 0)
platform_device_register_simple("ds1511", 0, &res, 1);
}
return 0;
}
machine_arch_initcall(psr2_md, psr2_probe_devices);
static void __init psr2_setup_arch(void)
{
/* init to some ~sane value until calibrate_delay() runs */
loops_per_jiffy = 50000000;
scom_init_wsp();
/* Setup SMP callback */
#ifdef CONFIG_SMP
a2_setup_smp();
#endif
}
static int __init psr2_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "ibm,psr2"))
return 0;
return 1;
}
static void __init psr2_init_irq(void)
{
wsp_init_irq();
opb_pic_init();
}
define_machine(psr2_md) {
.name = "PSR2 A2",
.probe = psr2_probe,
.setup_arch = psr2_setup_arch,
.restart = psr2_restart,
.power_off = psr2_spin,
.halt = psr2_spin,
.calibrate_decr = generic_calibrate_decr,
.init_IRQ = psr2_init_irq,
.progress = udbg_progress,
.power_save = book3e_idle,
};
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