arch/sh/boards/mach-sdk7780/irq.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * linux/arch/sh/boards/renesas/sdk7780/irq.c
   4  *
   5  * Renesas Technology Europe SDK7780 Support.
   6  *
   7  * Copyright (C) 2008  Nicholas Beck <nbeck@mpc-data.co.uk>
   8  */
   9 #include <linux/init.h>
  10 #include <linux/irq.h>
  11 #include <linux/io.h>
  12 #include <mach/sdk7780.h>
  13
  14 enum {
  15         UNUSED = 0,
  16         /* board specific interrupt sources */
  17         SMC91C111,      /* Ethernet controller */
  18 };
  19
  20 static struct intc_vect fpga_vectors[] __initdata = {
  21         INTC_IRQ(SMC91C111, IRQ_ETHERNET),
  22 };
  23
  24 static struct intc_mask_reg fpga_mask_registers[] __initdata = {
  25         { 0, FPGA_IRQ0MR, 16,
  26           { 0, 0, 0, 0, 0, 0, 0, 0,
  27             0, 0, 0, SMC91C111, 0, 0, 0, 0 } },
  28 };
  29
  30 static DECLARE_INTC_DESC(fpga_intc_desc, "sdk7780-irq", fpga_vectors,
  31                          NULL, fpga_mask_registers, NULL, NULL);
  32
  33 void __init init_sdk7780_IRQ(void)
  34 {
  35         printk(KERN_INFO "Using SDK7780 interrupt controller.\n");
  36
  37         __raw_writew(0xFFFF, FPGA_IRQ0MR);
  38         /* Setup IRL 0-3 */
  39         __raw_writew(0x0003, FPGA_IMSR);
  40         plat_irq_setup_pins(IRQ_MODE_IRL3210);
  41
  42         register_intc_controller(&fpga_intc_desc);
  43 }