linux/arch/mn10300/unit-asb2305/unit-init.c
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   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/setup.h>
  17#include <asm/processor.h>
  18#include <asm/cpu/intctl-regs.h>
  19#include <asm/cpu/rtc-regs.h>
  20#include <asm/cpu/serial-regs.h>
  21#include <asm/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        set_intr_level(XIRQ0, GxICR_LEVEL_3);
  31#endif
  32}
  33
  34/*
  35 * initialise the rest of the unit hardware after gdbstub is ready
  36 */
  37void __init unit_setup(void)
  38{
  39#ifdef CONFIG_PCI
  40        unit_pci_init();
  41#endif
  42}
  43
  44/*
  45 * initialise the external interrupts used by a unit of this type
  46 */
  47void __init unit_init_IRQ(void)
  48{
  49        unsigned int extnum;
  50
  51        for (extnum = 0; extnum < NR_XIRQS; extnum++) {
  52                switch (GET_XIRQ_TRIGGER(extnum)) {
  53                case XIRQ_TRIGGER_HILEVEL:
  54                case XIRQ_TRIGGER_LOWLEVEL:
  55                        set_intr_postackable(XIRQ2IRQ(extnum));
  56                        break;
  57                default:
  58                        break;
  59                }
  60        }
  61}
  62