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