M7350/kernel/arch/powerpc/platforms/wsp/psr2.c

67 lines
1.3 KiB
C
Raw Normal View History

2024-09-09 08:52:07 +00:00
/*
* 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 <linux/time.h>
#include <asm/machdep.h>
#include <asm/udbg.h>
#include "ics.h"
#include "wsp.h"
static void psr2_spin(void)
{
hard_irq_disable();
for (;;)
continue;
}
static void psr2_restart(char *cmd)
{
psr2_spin();
}
static int __init psr2_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (of_flat_dt_is_compatible(root, "ibm,wsp-chroma")) {
/* chroma systems also claim they are psr2s */
return 0;
}
if (!of_flat_dt_is_compatible(root, "ibm,psr2"))
return 0;
return 1;
}
define_machine(psr2_md) {
.name = "PSR2 A2",
.probe = psr2_probe,
.setup_arch = wsp_setup_arch,
.restart = psr2_restart,
.power_off = psr2_spin,
.halt = psr2_spin,
.calibrate_decr = generic_calibrate_decr,
.init_IRQ = wsp_setup_irq,
.progress = udbg_progress,
.power_save = book3e_idle,
};
machine_arch_initcall(psr2_md, wsp_probe_devices);