1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Renesas Solutions Highlander R7780MP Support. |
4 | * |
5 | * Copyright (C) 2002 Atom Create Engineering Co., Ltd. |
6 | * Copyright (C) 2006 Paul Mundt |
7 | * Copyright (C) 2007 Magnus Damm |
8 | */ |
9 | #include <linux/init.h> |
10 | #include <linux/irq.h> |
11 | #include <linux/io.h> |
12 | #include <mach/highlander.h> |
13 | |
14 | enum { |
15 | UNUSED = 0, |
16 | |
17 | /* board specific interrupt sources */ |
18 | CF, /* Compact Flash */ |
19 | TP, /* Touch panel */ |
20 | SCIF1, /* FPGA SCIF1 */ |
21 | SCIF0, /* FPGA SCIF0 */ |
22 | SMBUS, /* SMBUS */ |
23 | RTC, /* RTC Alarm */ |
24 | AX88796, /* Ethernet controller */ |
25 | PSW, /* Push Switch */ |
26 | |
27 | /* external bus connector */ |
28 | EXT1, EXT2, EXT4, EXT5, EXT6, |
29 | }; |
30 | |
31 | static struct intc_vect vectors[] __initdata = { |
32 | INTC_IRQ(CF, IRQ_CF), |
33 | INTC_IRQ(TP, IRQ_TP), |
34 | INTC_IRQ(SCIF1, IRQ_SCIF1), |
35 | INTC_IRQ(SCIF0, IRQ_SCIF0), |
36 | INTC_IRQ(SMBUS, IRQ_SMBUS), |
37 | INTC_IRQ(RTC, IRQ_RTC), |
38 | INTC_IRQ(AX88796, IRQ_AX88796), |
39 | INTC_IRQ(PSW, IRQ_PSW), |
40 | |
41 | INTC_IRQ(EXT1, IRQ_EXT1), INTC_IRQ(EXT2, IRQ_EXT2), |
42 | INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5), |
43 | INTC_IRQ(EXT6, IRQ_EXT6), |
44 | }; |
45 | |
46 | static struct intc_mask_reg mask_registers[] __initdata = { |
47 | { 0xa4000000, 0, 16, /* IRLMSK */ |
48 | { SCIF0, SCIF1, RTC, 0, CF, 0, TP, SMBUS, |
49 | 0, EXT6, EXT5, EXT4, EXT2, EXT1, PSW, AX88796 } }, |
50 | }; |
51 | |
52 | static unsigned char irl2irq[HL_NR_IRL] __initdata = { |
53 | 0, IRQ_CF, IRQ_TP, IRQ_SCIF1, |
54 | IRQ_SCIF0, IRQ_SMBUS, IRQ_RTC, IRQ_EXT6, |
55 | IRQ_EXT5, IRQ_EXT4, IRQ_EXT2, IRQ_EXT1, |
56 | 0, IRQ_AX88796, IRQ_PSW, |
57 | }; |
58 | |
59 | static DECLARE_INTC_DESC(intc_desc, "r7780mp" , vectors, |
60 | NULL, mask_registers, NULL, NULL); |
61 | |
62 | unsigned char * __init highlander_plat_irq_setup(void) |
63 | { |
64 | if ((__raw_readw(addr: 0xa4000700) & 0xf000) == 0x2000) { |
65 | printk(KERN_INFO "Using r7780mp interrupt controller.\n" ); |
66 | register_intc_controller(&intc_desc); |
67 | return irl2irq; |
68 | } |
69 | |
70 | return NULL; |
71 | } |
72 | |