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
17 enum {
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
32 static 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
42 static 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
48 static 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
55 static DECLARE_INTC_DESC(intc_desc, "r7780rp", vectors,
56 NULL, mask_registers, NULL, NULL);
57
highlander_plat_irq_setup(void)58 unsigned 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 }
68