1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Renesas Solutions Highlander R7780MP Support.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
6*4882a593Smuzhiyun * Copyright (C) 2006 Paul Mundt
7*4882a593Smuzhiyun * Copyright (C) 2007 Magnus Damm
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun #include <linux/init.h>
10*4882a593Smuzhiyun #include <linux/irq.h>
11*4882a593Smuzhiyun #include <linux/io.h>
12*4882a593Smuzhiyun #include <mach/highlander.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun enum {
15*4882a593Smuzhiyun UNUSED = 0,
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun /* board specific interrupt sources */
18*4882a593Smuzhiyun CF, /* Compact Flash */
19*4882a593Smuzhiyun TP, /* Touch panel */
20*4882a593Smuzhiyun SCIF1, /* FPGA SCIF1 */
21*4882a593Smuzhiyun SCIF0, /* FPGA SCIF0 */
22*4882a593Smuzhiyun SMBUS, /* SMBUS */
23*4882a593Smuzhiyun RTC, /* RTC Alarm */
24*4882a593Smuzhiyun AX88796, /* Ethernet controller */
25*4882a593Smuzhiyun PSW, /* Push Switch */
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun /* external bus connector */
28*4882a593Smuzhiyun EXT1, EXT2, EXT4, EXT5, EXT6,
29*4882a593Smuzhiyun };
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun static struct intc_vect vectors[] __initdata = {
32*4882a593Smuzhiyun INTC_IRQ(CF, IRQ_CF),
33*4882a593Smuzhiyun INTC_IRQ(TP, IRQ_TP),
34*4882a593Smuzhiyun INTC_IRQ(SCIF1, IRQ_SCIF1),
35*4882a593Smuzhiyun INTC_IRQ(SCIF0, IRQ_SCIF0),
36*4882a593Smuzhiyun INTC_IRQ(SMBUS, IRQ_SMBUS),
37*4882a593Smuzhiyun INTC_IRQ(RTC, IRQ_RTC),
38*4882a593Smuzhiyun INTC_IRQ(AX88796, IRQ_AX88796),
39*4882a593Smuzhiyun INTC_IRQ(PSW, IRQ_PSW),
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun INTC_IRQ(EXT1, IRQ_EXT1), INTC_IRQ(EXT2, IRQ_EXT2),
42*4882a593Smuzhiyun INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5),
43*4882a593Smuzhiyun INTC_IRQ(EXT6, IRQ_EXT6),
44*4882a593Smuzhiyun };
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun static struct intc_mask_reg mask_registers[] __initdata = {
47*4882a593Smuzhiyun { 0xa4000000, 0, 16, /* IRLMSK */
48*4882a593Smuzhiyun { SCIF0, SCIF1, RTC, 0, CF, 0, TP, SMBUS,
49*4882a593Smuzhiyun 0, EXT6, EXT5, EXT4, EXT2, EXT1, PSW, AX88796 } },
50*4882a593Smuzhiyun };
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun static unsigned char irl2irq[HL_NR_IRL] __initdata = {
53*4882a593Smuzhiyun 0, IRQ_CF, IRQ_TP, IRQ_SCIF1,
54*4882a593Smuzhiyun IRQ_SCIF0, IRQ_SMBUS, IRQ_RTC, IRQ_EXT6,
55*4882a593Smuzhiyun IRQ_EXT5, IRQ_EXT4, IRQ_EXT2, IRQ_EXT1,
56*4882a593Smuzhiyun 0, IRQ_AX88796, IRQ_PSW,
57*4882a593Smuzhiyun };
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun static DECLARE_INTC_DESC(intc_desc, "r7780mp", vectors,
60*4882a593Smuzhiyun NULL, mask_registers, NULL, NULL);
61*4882a593Smuzhiyun
highlander_plat_irq_setup(void)62*4882a593Smuzhiyun unsigned char * __init highlander_plat_irq_setup(void)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun if ((__raw_readw(0xa4000700) & 0xf000) == 0x2000) {
65*4882a593Smuzhiyun printk(KERN_INFO "Using r7780mp interrupt controller.\n");
66*4882a593Smuzhiyun register_intc_controller(&intc_desc);
67*4882a593Smuzhiyun return irl2irq;
68*4882a593Smuzhiyun }
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun return NULL;
71*4882a593Smuzhiyun }
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