1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2013 Cavium, Inc.
7 */
8
9#include <linux/kernel.h>
10#include <linux/kvm_para.h>
11
12#include <asm/reboot.h>
13#include <asm/bootinfo.h>
14#include <asm/smp-ops.h>
15#include <asm/time.h>
16
17extern struct plat_smp_ops paravirt_smp_ops;
18
19const char *get_system_type(void)
20{
21	return "MIPS Para-Virtualized Guest";
22}
23
24void __init plat_time_init(void)
25{
26	mips_hpt_frequency = kvm_hypercall0(KVM_HC_MIPS_GET_CLOCK_FREQ);
27
28	preset_lpj = mips_hpt_frequency / (2 * HZ);
29}
30
31static void pv_machine_halt(void)
32{
33	kvm_hypercall0(KVM_HC_MIPS_EXIT_VM);
34}
35
36/*
37 * Early entry point for arch setup
38 */
39void __init prom_init(void)
40{
41	int i;
42	int argc = fw_arg0;
43	char **argv = (char **)fw_arg1;
44
45#ifdef CONFIG_32BIT
46	set_io_port_base(KSEG1ADDR(0x1e000000));
47#else /* CONFIG_64BIT */
48	set_io_port_base(PHYS_TO_XKSEG_UNCACHED(0x1e000000));
49#endif
50
51	for (i = 0; i < argc; i++) {
52		strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
53		if (i < argc - 1)
54			strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
55	}
56	_machine_halt = pv_machine_halt;
57	register_smp_ops(&paravirt_smp_ops);
58}
59
60void __init plat_mem_setup(void)
61{
62	/* Do nothing, the "mem=???" parser handles our memory. */
63}
64
65void __init prom_free_prom_memory(void)
66{
67}
68