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 */
init_landisk_IRQ(void)59 void __init init_landisk_IRQ(void)
60 {
61 register_intc_controller(&intc_desc_landisk);
62 __raw_writeb(0x00, PA_PWRINT_CLR);
63 }
64