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/arch/sh/boards/mach-highlander/irq-r7780rp.c

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35
C | 67 lines | 45 code | 10 blank | 12 comment | 1 complexity | 7b5672e1ebab3bef3c140c49b3748a9d MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
 1/*
 2 * Renesas Solutions Highlander R7780RP-1 Support.
 3 *
 4 * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
 5 * Copyright (C) 2006  Paul Mundt
 6 * Copyright (C) 2008  Magnus Damm
 7 *
 8 * This file is subject to the terms and conditions of the GNU General Public
 9 * License.  See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12#include <linux/init.h>
13#include <linux/irq.h>
14#include <linux/io.h>
15#include <mach/highlander.h>
16
17enum {
18	UNUSED = 0,
19
20	/* board specific interrupt sources */
21
22	AX88796,          /* Ethernet controller */
23	PSW,              /* Push Switch */
24	CF,               /* Compact Flash */
25
26	PCI_A,
27	PCI_B,
28	PCI_C,
29	PCI_D,
30};
31
32static struct intc_vect vectors[] __initdata = {
33	INTC_IRQ(PCI_A, 65), /* dirty: overwrite cpu vectors for pci */
34	INTC_IRQ(PCI_B, 66),
35	INTC_IRQ(PCI_C, 67),
36	INTC_IRQ(PCI_D, 68),
37	INTC_IRQ(CF, IRQ_CF),
38	INTC_IRQ(PSW, IRQ_PSW),
39	INTC_IRQ(AX88796, IRQ_AX88796),
40};
41
42static struct intc_mask_reg mask_registers[] __initdata = {
43	{ 0xa5000000, 0, 16, /* IRLMSK */
44	  { PCI_A, PCI_B, PCI_C, PCI_D, CF, 0, 0, 0,
45	    0, 0, 0, 0, 0, 0, PSW, AX88796 } },
46};
47
48static unsigned char irl2irq[HL_NR_IRL] __initdata = {
49	65, 66, 67, 68,
50	IRQ_CF, 0, 0, 0,
51	0, 0, 0, 0,
52	IRQ_AX88796, IRQ_PSW
53};
54
55static DECLARE_INTC_DESC(intc_desc, "r7780rp", vectors,
56			 NULL, mask_registers, NULL, NULL);
57
58unsigned char * __init highlander_plat_irq_setup(void)
59{
60	if (__raw_readw(0xa5000600)) {
61		printk(KERN_INFO "Using r7780rp interrupt controller.\n");
62		register_intc_controller(&intc_desc);
63		return irl2irq;
64	}
65
66	return NULL;
67}