1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * arch/sh/boards/mach-landisk/irq.c 4 * 5 * I-O DATA Device, Inc. LANDISK Support 6 * 7 * Copyright (C) 2005-2007 kogiidena 8 * Copyright (C) 2011 Nobuhiro Iwamatsu 9 * 10 * Copyright (C) 2001 Ian da Silva, Jeremy Siegel 11 * Based largely on io_se.c. 12 */ 13 14 #include <linux/init.h> 15 #include <linux/irq.h> 16 #include <linux/interrupt.h> 17 #include <linux/io.h> 18 #include <mach-landisk/mach/iodata_landisk.h> 19 20 enum { 21 UNUSED = 0, 22 23 PCI_INTA, /* PCI int A */ 24 PCI_INTB, /* PCI int B */ 25 PCI_INTC, /* PCI int C */ 26 PCI_INTD, /* PCI int D */ 27 ATA, /* ATA */ 28 FATA, /* CF */ 29 POWER, /* Power switch */ 30 BUTTON, /* Button switch */ 31 }; 32 33 /* Vectors for LANDISK */ 34 static struct intc_vect vectors_landisk[] __initdata = { 35 INTC_IRQ(PCI_INTA, IRQ_PCIINTA), 36 INTC_IRQ(PCI_INTB, IRQ_PCIINTB), 37 INTC_IRQ(PCI_INTC, IRQ_PCIINTC), 38 INTC_IRQ(PCI_INTD, IRQ_PCIINTD), 39 INTC_IRQ(ATA, IRQ_ATA), 40 INTC_IRQ(FATA, IRQ_FATA), 41 INTC_IRQ(POWER, IRQ_POWER), 42 INTC_IRQ(BUTTON, IRQ_BUTTON), 43 }; 44 45 /* IRLMSK mask register layout for LANDISK */ 46 static struct intc_mask_reg mask_registers_landisk[] __initdata = { 47 { PA_IMASK, 0, 8, /* IRLMSK */ 48 { BUTTON, POWER, FATA, ATA, 49 PCI_INTD, PCI_INTC, PCI_INTB, PCI_INTA, 50 } 51 }, 52 }; 53 54 static DECLARE_INTC_DESC(intc_desc_landisk, "landisk", vectors_landisk, NULL, 55 mask_registers_landisk, NULL, NULL); 56 /* 57 * Initialize IRQ setting 58 */ 59 void __init init_landisk_IRQ(void) 60 { 61 register_intc_controller(&intc_desc_landisk); 62 __raw_writeb(0x00, PA_PWRINT_CLR); 63 } 64