1/* ASB2305 Initialisation
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#include <linux/kernel.h>
12#include <linux/param.h>
13#include <linux/init.h>
14#include <linux/pci.h>
15#include <asm/io.h>
16#include <asm/irq.h>
17#include <asm/setup.h>
18#include <asm/processor.h>
19#include <asm/intctl-regs.h>
20#include <asm/serial-regs.h>
21#include <unit/serial.h>
22
23/*
24 * initialise some of the unit hardware before gdbstub is set up
25 */
26asmlinkage void __init unit_init(void)
27{
28#ifndef CONFIG_GDBSTUB_ON_TTYSx
29	/* set the 16550 interrupt line to level 3 if not being used for GDB */
30#ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL
31	set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
32#endif
33#endif /* CONFIG_GDBSTUB_ON_TTYSx */
34}
35
36/*
37 * initialise the rest of the unit hardware after gdbstub is ready
38 */
39void __init unit_setup(void)
40{
41#ifdef CONFIG_PCI
42	unit_pci_init();
43#endif
44}
45
46/*
47 * initialise the external interrupts used by a unit of this type
48 */
49void __init unit_init_IRQ(void)
50{
51	unsigned int extnum;
52
53	for (extnum = 0; extnum < NR_XIRQS; extnum++) {
54		switch (GET_XIRQ_TRIGGER(extnum)) {
55		case XIRQ_TRIGGER_HILEVEL:
56		case XIRQ_TRIGGER_LOWLEVEL:
57			mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
58			break;
59		default:
60			break;
61		}
62	}
63}
64