1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * linux/arch/sh/boards/se/7721/irq.c
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2008 Renesas Solutions Corp.
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #include <linux/init.h>
8*4882a593Smuzhiyun #include <linux/irq.h>
9*4882a593Smuzhiyun #include <linux/interrupt.h>
10*4882a593Smuzhiyun #include <linux/io.h>
11*4882a593Smuzhiyun #include <mach-se/mach/se7721.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun enum {
14*4882a593Smuzhiyun UNUSED = 0,
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun /* board specific interrupt sources */
17*4882a593Smuzhiyun MRSHPC,
18*4882a593Smuzhiyun };
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun static struct intc_vect vectors[] __initdata = {
21*4882a593Smuzhiyun INTC_IRQ(MRSHPC, MRSHPC_IRQ0),
22*4882a593Smuzhiyun };
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun static struct intc_prio_reg prio_registers[] __initdata = {
25*4882a593Smuzhiyun { FPGA_ILSR6, 0, 8, 4, /* IRLMSK */
26*4882a593Smuzhiyun { 0, MRSHPC } },
27*4882a593Smuzhiyun };
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun static DECLARE_INTC_DESC(intc_desc, "SE7721", vectors,
30*4882a593Smuzhiyun NULL, NULL, prio_registers, NULL);
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun /*
33*4882a593Smuzhiyun * Initialize IRQ setting
34*4882a593Smuzhiyun */
init_se7721_IRQ(void)35*4882a593Smuzhiyun void __init init_se7721_IRQ(void)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun /* PPCR */
38*4882a593Smuzhiyun __raw_writew(__raw_readw(0xa4050118) & ~0x00ff, 0xa4050118);
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun register_intc_controller(&intc_desc);
41*4882a593Smuzhiyun intc_set_priority(MRSHPC_IRQ0, 0xf - MRSHPC_IRQ0);
42*4882a593Smuzhiyun }
43