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/setup.h>
  17#include <asm/processor.h>
  18#include <asm/intctl-regs.h>
  19#include <asm/serial-regs.h>
  20#include <unit/serial.h>
  21
  22/*
  23 * initialise some of the unit hardware before gdbstub is set up
  24 */
  25asmlinkage void __init unit_init(void)
  26{
  27#ifndef CONFIG_GDBSTUB_ON_TTYSx
  28        /* set the 16550 interrupt line to level 3 if not being used for GDB */
  29#ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL
  30        set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
  31#endif
  32#endif /* CONFIG_GDBSTUB_ON_TTYSx */
  33}
  34
  35/*
  36 * initialise the rest of the unit hardware after gdbstub is ready
  37 */
  38void __init unit_setup(void)
  39{
  40#ifdef CONFIG_PCI
  41        unit_pci_init();
  42#endif
  43}
  44
  45/*
  46 * initialise the external interrupts used by a unit of this type
  47 */
  48void __init unit_init_IRQ(void)
  49{
  50        unsigned int extnum;
  51
  52        for (extnum = 0; extnum < NR_XIRQS; extnum++) {
  53                switch (GET_XIRQ_TRIGGER(extnum)) {
  54                case XIRQ_TRIGGER_HILEVEL:
  55                case XIRQ_TRIGGER_LOWLEVEL:
  56                        mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
  57                        break;
  58                default:
  59                        break;
  60                }
  61        }
  62}
  63