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[mirror_ubuntu-zesty-kernel.git] / arch / sh / boards / se / 7300 / irq.c
1 /*
2 * linux/arch/sh/boards/se/7300/irq.c
3 *
4 * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
5 *
6 * SH-Mobile SolutionEngine 7300 Support.
7 *
8 */
9
10 #include <linux/config.h>
11 #include <linux/init.h>
12 #include <linux/irq.h>
13 #include <asm/irq.h>
14 #include <asm/io.h>
15 #include <asm/mach/se7300.h>
16
17 /*
18 * Initialize IRQ setting
19 */
20 void __init
21 init_7300se_IRQ(void)
22 {
23 ctrl_outw(0x0028, PA_EPLD_MODESET); /* mode set IRQ0,1 active low. */
24 ctrl_outw(0xa000, INTC_ICR1); /* IRQ mode; IRQ0,1 enable. */
25 ctrl_outw(0x0000, PORT_PFCR); /* use F for IRQ[3:0] and SIU. */
26
27 /* PC_IRQ[0-3] -> IRQ0 (32) */
28 make_ipr_irq(IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, 0x0f - IRQ0_IRQ);
29 /* A_IRQ[0-3] -> IRQ1 (33) */
30 make_ipr_irq(IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, 0x0f - IRQ1_IRQ);
31 make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY);
32 make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
33 make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
34 make_ipr_irq(VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
35
36 ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */
37 }