1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Renesas Solutions Highlander R7780RP-1 Support. |
4 | * |
5 | * Copyright (C) 2002 Atom Create Engineering Co., Ltd. |
6 | * Copyright (C) 2006 Paul Mundt |
7 | * Copyright (C) 2008 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 | |
19 | AX88796, /* Ethernet controller */ |
20 | PSW, /* Push Switch */ |
21 | CF, /* Compact Flash */ |
22 | |
23 | PCI_A, |
24 | PCI_B, |
25 | PCI_C, |
26 | PCI_D, |
27 | }; |
28 | |
29 | static struct intc_vect vectors[] __initdata = { |
30 | INTC_IRQ(PCI_A, 65), /* dirty: overwrite cpu vectors for pci */ |
31 | INTC_IRQ(PCI_B, 66), |
32 | INTC_IRQ(PCI_C, 67), |
33 | INTC_IRQ(PCI_D, 68), |
34 | INTC_IRQ(CF, IRQ_CF), |
35 | INTC_IRQ(PSW, IRQ_PSW), |
36 | INTC_IRQ(AX88796, IRQ_AX88796), |
37 | }; |
38 | |
39 | static struct intc_mask_reg mask_registers[] __initdata = { |
40 | { 0xa5000000, 0, 16, /* IRLMSK */ |
41 | { PCI_A, PCI_B, PCI_C, PCI_D, CF, 0, 0, 0, |
42 | 0, 0, 0, 0, 0, 0, PSW, AX88796 } }, |
43 | }; |
44 | |
45 | static unsigned char irl2irq[HL_NR_IRL] __initdata = { |
46 | 65, 66, 67, 68, |
47 | IRQ_CF, 0, 0, 0, |
48 | 0, 0, 0, 0, |
49 | IRQ_AX88796, IRQ_PSW |
50 | }; |
51 | |
52 | static DECLARE_INTC_DESC(intc_desc, "r7780rp" , vectors, |
53 | NULL, mask_registers, NULL, NULL); |
54 | |
55 | unsigned char * __init highlander_plat_irq_setup(void) |
56 | { |
57 | if (__raw_readw(addr: 0xa5000600)) { |
58 | printk(KERN_INFO "Using r7780rp interrupt controller.\n" ); |
59 | register_intc_controller(&intc_desc); |
60 | return irl2irq; |
61 | } |
62 | |
63 | return NULL; |
64 | } |
65 | |