LXR linux/arch/mn10300/unit-asb2305/unit-init.c

   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