fdt_mips.c revision 256281
1/*- 2 * Copyright (c) 2009-2010 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Semihalf under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: stable/10/sys/dev/fdt/fdt_mips.c 245335 2013-01-12 16:09:33Z rwatson $"); 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/kernel.h> 36#include <sys/module.h> 37#include <sys/bus.h> 38 39#include <machine/intr_machdep.h> 40 41#include <dev/ofw/ofw_bus.h> 42#include <dev/ofw/ofw_bus_subr.h> 43#include <dev/ofw/openfirm.h> 44 45#include "ofw_bus_if.h" 46#include "fdt_common.h" 47 48struct fdt_fixup_entry fdt_fixup_table[] = { 49 { NULL, NULL } 50}; 51 52/* 53 * For PIC-free boards, provide a PIC decoder to be used with mips4k CP0 54 * interrupt control directly. 55 */ 56static int 57fdt_pic_decode_mips4k_cp0(phandle_t node, pcell_t *intr, int *interrupt, 58 int *trig, int *pol) 59{ 60 61 if (!fdt_is_compatible(node, "mips,mips4k")) 62 return (ENXIO); 63 64 *interrupt = fdt32_to_cpu(intr[0]); 65 *trig = INTR_TRIGGER_CONFORM; 66 *pol = INTR_POLARITY_CONFORM; 67 68 return (0); 69} 70 71fdt_pic_decode_t fdt_pic_table[] = { 72 &fdt_pic_decode_mips4k_cp0, 73 NULL 74}; 75