arch/sh/drivers/pci/fixups-sdk7780.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * arch/sh/drivers/pci/fixups-sdk7780.c
   4  *
   5  * PCI fixups for the SDK7780SE03
   6  *
   7  * Copyright (C) 2003  Lineo uSolutions, Inc.
   8  * Copyright (C) 2004 - 2006  Paul Mundt
   9  * Copyright (C) 2006  Nobuhiro Iwamatsu
  10  */
  11 #include <linux/pci.h>
  12 #include <linux/io.h>
  13 #include <linux/sh_intc.h>
  14 #include "pci-sh4.h"
  15
  16 #define IRQ_INTA        evt2irq(0xa20)
  17 #define IRQ_INTB        evt2irq(0xa40)
  18 #define IRQ_INTC        evt2irq(0xa60)
  19 #define IRQ_INTD        evt2irq(0xa80)
  20
  21 /* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */
  22 static char sdk7780_irq_tab[4][16] = {
  23         /* INTA */
  24         { IRQ_INTA, IRQ_INTD, IRQ_INTC, IRQ_INTD, -1, -1, -1, -1, -1, -1,
  25           -1, -1, -1, -1, -1, -1 },
  26         /* INTB */
  27         { IRQ_INTB, IRQ_INTA, -1, IRQ_INTA, -1, -1, -1, -1, -1, -1, -1, -1,
  28           -1, -1, -1, -1 },
  29         /* INTC */
  30         { IRQ_INTC, IRQ_INTB, -1, IRQ_INTB, -1, -1, -1, -1, -1, -1, -1, -1,
  31           -1, -1, -1, -1 },
  32         /* INTD */
  33         { IRQ_INTD, IRQ_INTC, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
  34           -1, -1, -1 },
  35 };
  36
  37 int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
  38 {
  39        return sdk7780_irq_tab[pin-1][slot];
  40 }