text: // SPDX-License-Identifier: GPL-2.0
  /*
   * linux/arch/sh/boards/se/770x/irq.c
   *
   * Copyright (C) 2000  Kazumoto Kojima
   * Copyright (C) 2006  Nobuhiro Iwamatsu
   *
   * Hitachi SolutionEngine Support.
   *
   */
  
  #include <linux/init.h>
  #include <linux/interrupt.h>
  #include <linux/irq.h>
  #include <asm/irq.h>
  #include <asm/io.h>
  #include <mach-se/mach/se.h>
  
  static struct ipr_data ipr_irq_table[] = {
  	/*
  	* Super I/O (Just mimic PC):
  	*  1: keyboard
  	*  3: serial 0
  	*  4: serial 1
  	*  5: printer
  	*  6: floppy
  	*  8: rtc
  	* 12: mouse
  	* 14: ide0
  	*/
  #if defined(CONFIG_CPU_SUBTYPE_SH7705)
  	/* This is default value */
  	{ 13, 0, 8,  0x0f-13, },
  	{ 5 , 0, 4,  0x0f- 5, },
  	{ 10, 1, 0,  0x0f-10, },
  	{ 7 , 2, 4,  0x0f- 7, },
  	{ 3 , 2, 0,  0x0f- 3, },
  	{ 1 , 3, 12, 0x0f- 1, },
  	{ 12, 3, 4,  0x0f-12, }, /* LAN */
  	{ 2 , 4, 8,  0x0f- 2, }, /* PCIRQ2 */
  	{ 6 , 4, 4,  0x0f- 6, }, /* PCIRQ1 */
  	{ 14, 4, 0,  0x0f-14, }, /* PCIRQ0 */
  	{ 0 , 5, 12, 0x0f   , }, 
  	{ 4 , 5, 4,  0x0f- 4, },
  	{ 8 , 6, 12, 0x0f- 8, },
  	{ 9 , 6, 8,  0x0f- 9, },
  	{ 11, 6, 4,  0x0f-11, },
  #else
  	{ 14, 0,  8, 0x0f-14, },
  	{ 12, 0,  4, 0x0f-12, },
  	{  8, 1,  4, 0x0f- 8, },
  	{  6, 2, 12, 0x0f- 6, },
  	{  5, 2,  8, 0x0f- 5, },
  	{  4, 2,  4, 0x0f- 4, },
  	{  3, 2,  0, 0x0f- 3, },
  	{  1, 3, 12, 0x0f- 1, },
  #if defined(CONFIG_STNIC)
  	/* ST NIC */
  	{ 10, 3,  4, 0x0f-10, }, 	/* LAN */
  #endif
  	/* MRSHPC IRQs setting */
  	{  0, 4, 12, 0x0f- 0, },	/* PCIRQ3 */
  	{ 11, 4,  8, 0x0f-11, }, 	/* PCIRQ2 */
  	{  9, 4,  4, 0x0f- 9, }, 	/* PCIRQ1 */
  	{  7, 4,  0, 0x0f- 7, }, 	/* PCIRQ0 */
  	/* #2, #13 are allocated for SLOT IRQ #1 and #2 (for now) */
  	/* NOTE: #2 and #13 are not used on PC */
  	{ 13, 6,  4, 0x0f-13, }, 	/* SLOTIRQ2 */
  	{  2, 6,  0, 0x0f- 2, }, 	/* SLOTIRQ1 */
  #endif
  };
  
  static unsigned long ipr_offsets[] = {
  	BCR_ILCRA,
  	BCR_ILCRB,
  	BCR_ILCRC,
  	BCR_ILCRD,
  	BCR_ILCRE,
  	BCR_ILCRF,
  	BCR_ILCRG,
  };
  
  static struct ipr_desc ipr_irq_desc = {
  	.ipr_offsets	= ipr_offsets,
  	.nr_offsets	= ARRAY_SIZE(ipr_offsets),
  
  	.ipr_data	= ipr_irq_table,
  	.nr_irqs	= ARRAY_SIZE(ipr_irq_table),
  	.chip = {
  		.name	= "IPR-se770x",
  	},
  };
  
  /*
   * Initialize IRQ setting
   */
  void __init init_se_IRQ(void)
  {
  	/* Disable all interrupts */
  	__raw_writew(0, BCR_ILCRA);
  	__raw_writew(0, BCR_ILCRB);
  	__raw_writew(0, BCR_ILCRC);
  	__raw_writew(0, BCR_ILCRD);
  	__raw_writew(0, BCR_ILCRE);
  	__raw_writew(0, BCR_ILCRF);
  	__raw_writew(0, BCR_ILCRG);
  
  	register_ipr_controller(&ipr_irq_desc);
  }
  