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
14enum {
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
29static 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
39static 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
45static 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
52static DECLARE_INTC_DESC(intc_desc, "r7780rp", vectors,
53			 NULL, mask_registers, NULL, NULL);
54
55unsigned char * __init highlander_plat_irq_setup(void)
56{
57	if (__raw_readw(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