Linux Kernel  3.7.1
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irq.c
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1 /*
2  * linux/arch/sh/boards/renesas/sdk7780/irq.c
3  *
4  * Renesas Technology Europe SDK7780 Support.
5  *
6  * Copyright (C) 2008 Nicholas Beck <[email protected]>
7  *
8  * This file is subject to the terms and conditions of the GNU General Public
9  * License. See the file "COPYING" in the main directory of this archive
10  * for more details.
11  */
12 #include <linux/init.h>
13 #include <linux/irq.h>
14 #include <linux/io.h>
15 #include <mach/sdk7780.h>
16 
17 enum {
18  UNUSED = 0,
19  /* board specific interrupt sources */
20  SMC91C111, /* Ethernet controller */
21 };
22 
23 static struct intc_vect fpga_vectors[] __initdata = {
25 };
26 
27 static struct intc_mask_reg fpga_mask_registers[] __initdata = {
28  { 0, FPGA_IRQ0MR, 16,
29  { 0, 0, 0, 0, 0, 0, 0, 0,
30  0, 0, 0, SMC91C111, 0, 0, 0, 0 } },
31 };
32 
33 static DECLARE_INTC_DESC(fpga_intc_desc, "sdk7780-irq", fpga_vectors,
34  NULL, fpga_mask_registers, NULL, NULL);
35 
37 {
38  printk(KERN_INFO "Using SDK7780 interrupt controller.\n");
39 
40  __raw_writew(0xFFFF, FPGA_IRQ0MR);
41  /* Setup IRL 0-3 */
42  __raw_writew(0x0003, FPGA_IMSR);
44 
45  register_intc_controller(&fpga_intc_desc);
46 }