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      1 /*	$NetBSD: ralink_bus.c,v 1.4 2022/09/29 07:00:47 skrll Exp $	*/
      2 /*-
      3  * Copyright (c) 2011 CradlePoint Technology, Inc.
      4  * All rights reserved.
      5  *
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY CRADLEPOINT TECHNOLOGY, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 /*
     29  * Copyright (c) 2006 Urbana-Champaign Independent Media Center.
     30  * Copyright (c) 2006 Garrett D'Amore.
     31  * All rights reserved.
     32  *
     33  * This code was written by Garrett D'Amore for the Champaign-Urbana
     34  * Community Wireless Network Project.
     35  *
     36  * Redistribution and use in source and binary forms, with or
     37  * without modification, are permitted provided that the following
     38  * conditions are met:
     39  * 1. Redistributions of source code must retain the above copyright
     40  *    notice, this list of conditions and the following disclaimer.
     41  * 2. Redistributions in binary form must reproduce the above
     42  *    copyright notice, this list of conditions and the following
     43  *    disclaimer in the documentation and/or other materials provided
     44  *    with the distribution.
     45  * 3. All advertising materials mentioning features or use of this
     46  *    software must display the following acknowledgements:
     47  *      This product includes software developed by the Urbana-Champaign
     48  *      Independent Media Center.
     49  *	This product includes software developed by Garrett D'Amore.
     50  * 4. Urbana-Champaign Independent Media Center's name and Garrett
     51  *    D'Amore's name may not be used to endorse or promote products
     52  *    derived from this software without specific prior written permission.
     53  *
     54  * THIS SOFTWARE IS PROVIDED BY THE URBANA-CHAMPAIGN INDEPENDENT
     55  * MEDIA CENTER AND GARRETT D'AMORE ``AS IS'' AND ANY EXPRESS OR
     56  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     57  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     58  * ARE DISCLAIMED.  IN NO EVENT SHALL THE URBANA-CHAMPAIGN INDEPENDENT
     59  * MEDIA CENTER OR GARRETT D'AMORE BE LIABLE FOR ANY DIRECT, INDIRECT,
     60  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     61  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     62  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
     63  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     64  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     65  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     66  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     67  */
     68 
     69 #include "locators.h"
     70 
     71 #include <sys/cdefs.h>
     72 __KERNEL_RCSID(0, "$NetBSD: ralink_bus.c,v 1.4 2022/09/29 07:00:47 skrll Exp $");
     73 #define	_MIPS_BUS_DMA_PRIVATE
     74 
     75 #include <sys/param.h>
     76 #include <sys/bus.h>
     77 #include <sys/device.h>
     78 #include <sys/extent.h>
     79 #include <sys/systm.h>
     80 
     81 #include <mips/ralink/ralink_reg.h>
     82 #include <mips/ralink/ralink_var.h>
     83 
     84 static void ra_bus_bus_mem_init(bus_space_tag_t, void *);
     85 
     86 struct mips_bus_space	ra_bus_memt;
     87 struct mips_bus_dma_tag	ra_bus_dmat = {
     88 	._dmamap_ops = _BUS_DMAMAP_OPS_INITIALIZER,
     89 	._dmamem_ops = _BUS_DMAMEM_OPS_INITIALIZER,
     90 	._dmatag_ops = _BUS_DMATAG_OPS_INITIALIZER,
     91 };
     92 
     93 const bus_space_handle_t ra_sysctl_bsh =
     94     (bus_space_handle_t) RA_IOREG_VADDR(RA_SYSCTL_BASE, 0);
     95 
     96 void
     97 ra_bus_init(void)
     98 {
     99 	ra_bus_bus_mem_init(&ra_bus_memt, NULL);
    100 #ifdef DIAGNOSTIC
    101 	bus_space_handle_t bsh = 0xdeadfa11;
    102 	bus_space_map(&ra_bus_memt, RA_SYSCTL_BASE, 0x100, 0, &bsh);
    103 	KASSERT(ra_sysctl_bsh == bsh);
    104 #endif
    105 }
    106 
    107 /*
    108  * CPU memory/register stuff
    109  *  defines ra_bus_bus_mem_init, which encompasses all of memory
    110  */
    111 
    112 #define CHIP			ra_bus
    113 #define CHIP_MEM		/* defined */
    114 #define CHIP_W1_BUS_START(v)	0x00000000UL
    115 #define CHIP_W1_BUS_END(v)	0x1fffffffUL
    116 #define CHIP_W1_SYS_START(v)	CHIP_W1_BUS_START(v)
    117 #define CHIP_W1_SYS_END(v)	CHIP_W1_BUS_END(v)
    118 
    119 #include <mips/mips/bus_space_alignstride_chipdep.c>
    120