1 /*
2 * Renesas Solutions Highlander R7780MP Support.
3 *
4 * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
5 * Copyright (C) 2006 Paul Mundt
6 * Copyright (C) 2007 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 CF, /* Compact Flash */
22 TP, /* Touch panel */
23 SCIF1, /* FPGA SCIF1 */
24 SCIF0, /* FPGA SCIF0 */
25 SMBUS, /* SMBUS */
26 RTC, /* RTC Alarm */
27 AX88796, /* Ethernet controller */
28 PSW, /* Push Switch */
29
30 /* external bus connector */
31 EXT1, EXT2, EXT4, EXT5, EXT6,
32 };
33
34 static struct intc_vect vectors[] __initdata = {
35 INTC_IRQ(CF, IRQ_CF),
36 INTC_IRQ(TP, IRQ_TP),
37 INTC_IRQ(SCIF1, IRQ_SCIF1),
38 INTC_IRQ(SCIF0, IRQ_SCIF0),
39 INTC_IRQ(SMBUS, IRQ_SMBUS),
40 INTC_IRQ(RTC, IRQ_RTC),
41 INTC_IRQ(AX88796, IRQ_AX88796),
42 INTC_IRQ(PSW, IRQ_PSW),
43
44 INTC_IRQ(EXT1, IRQ_EXT1), INTC_IRQ(EXT2, IRQ_EXT2),
45 INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5),
46 INTC_IRQ(EXT6, IRQ_EXT6),
47 };
48
49 static struct intc_mask_reg mask_registers[] __initdata = {
50 { 0xa4000000, 0, 16, /* IRLMSK */
51 { SCIF0, SCIF1, RTC, 0, CF, 0, TP, SMBUS,
52 0, EXT6, EXT5, EXT4, EXT2, EXT1, PSW, AX88796 } },
53 };
54
55 static unsigned char irl2irq[HL_NR_IRL] __initdata = {
56 0, IRQ_CF, IRQ_TP, IRQ_SCIF1,
57 IRQ_SCIF0, IRQ_SMBUS, IRQ_RTC, IRQ_EXT6,
58 IRQ_EXT5, IRQ_EXT4, IRQ_EXT2, IRQ_EXT1,
59 0, IRQ_AX88796, IRQ_PSW,
60 };
61
62 static DECLARE_INTC_DESC(intc_desc, "r7780mp", vectors,
63 NULL, mask_registers, NULL, NULL);
64
highlander_plat_irq_setup(void)65 unsigned char * __init highlander_plat_irq_setup(void)
66 {
67 if ((__raw_readw(0xa4000700) & 0xf000) == 0x2000) {
68 printk(KERN_INFO "Using r7780mp interrupt controller.\n");
69 register_intc_controller(&intc_desc);
70 return irl2irq;
71 }
72
73 return NULL;
74 }
75
