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/*
* PowerNV setup code.
*
* Copyright 2011 IBM Corp.
*
* 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.
*/
#undef DEBUG
#include <linux/cpu.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/seq_file.h>
#include <linux/of.h>
#include <linux/interrupt.h>
#include <linux/bug.h>
#include <asm/machdep.h>
#include <asm/firmware.h>
#include <asm/xics.h>
#include "powernv.h"
static void __init pnv_setup_arch(void)
{
/* Force console to hvc for now until we have sorted out the
* real console situation for the platform. This will make
* hvc_udbg work at least.
*/
add_preferred_console("hvc", 0, NULL);
/* Initialize SMP */
pnv_smp_init();
/* XXX PCI */
/* XXX NVRAM */
/* Enable NAP mode */
powersave_nap = 1;
/* XXX PMCS */
}
static void __init pnv_init_early(void)
{
/* XXX IOMMU */
}
static void __init pnv_init_IRQ(void)
{
xics_init();
WARN_ON(!ppc_md.get_irq);
}
static void pnv_show_cpuinfo(struct seq_file *m)
{
struct device_node *root;
const char *model = "";
root = of_find_node_by_path("/");
if (root)
model = of_get_property(root, "model", NULL);
seq_printf(m, "machine\t\t: PowerNV %s\n", model);
if (firmware_has_feature(FW_FEATURE_OPALv2))
seq_printf(m, "firmware\t: OPAL v2\n");
else if (firmware_has_feature(FW_FEATURE_OPAL))
seq_printf(m, "firmware\t: OPAL v1\n");
else
seq_printf(m, "firmware\t: BML\n");
of_node_put(root);
}
static void pnv_restart(char *cmd)
{
for (;;);
}
static void pnv_power_off(void)
{
for (;;);
}
static void pnv_halt(void)
{
for (;;);
}
static unsigned long __init pnv_get_boot_time(void)
{
return 0;
}
static void pnv_get_rtc_time(struct rtc_time *rtc_tm)
{
}
static int pnv_set_rtc_time(struct rtc_time *tm)
{
return 0;
}
static void pnv_progress(char *s, unsigned short hex)
{
}
#ifdef CONFIG_KEXEC
static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
{
xics_kexec_teardown_cpu(secondary);
}
#endif /* CONFIG_KEXEC */
static int __init pnv_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "ibm,powernv"))
return 0;
hpte_init_native();
pr_debug("PowerNV detected !\n");
return 1;
}
define_machine(powernv) {
.name = "PowerNV",
.probe = pnv_probe,
.setup_arch = pnv_setup_arch,
.init_early = pnv_init_early,
.init_IRQ = pnv_init_IRQ,
.show_cpuinfo = pnv_show_cpuinfo,
.restart = pnv_restart,
.power_off = pnv_power_off,
.halt = pnv_halt,
.get_boot_time = pnv_get_boot_time,
.get_rtc_time = pnv_get_rtc_time,
.set_rtc_time = pnv_set_rtc_time,
.progress = pnv_progress,
.power_save = power7_idle,
.calibrate_decr = generic_calibrate_decr,
#ifdef CONFIG_KEXEC
.kexec_cpu_down = pnv_kexec_cpu_down,
#endif
};
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