/* $NetBSD: smdk2800_pci.c,v 1.6 2020/06/17 07:02:31 thorpej Exp $ */

/* $NetBSD: smdk2800_pci.c,v 1.6 2020/06/17 07:02:31 thorpej Exp $ */

/*
* Copyright (c) 2002 Fujitsu Component Limited
* Copyright (c) 2002 Genetec Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of The Fujitsu Component Limited nor the name of
* Genetec corporation may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC
* CORPORATION ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL FUJITSU COMPONENT LIMITED OR GENETEC
* CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

/*
* Platform specific part for S3C2800 PCI support on SMDK2800
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: smdk2800_pci.c,v 1.6 2020/06/17 07:02:31 thorpej Exp $");

#include <sys/param.h>
#include <sys/types.h>
#include <sys/device.h>
#include <sys/systm.h>

#define _ARM32_BUS_DMA_PRIVATE
#include <sys/bus.h>

#include <dev/pci/pcivar.h>
#include <dev/pci/pciconf.h>

#include <arm/s3c2xx0/s3c2800var.h>

static struct arm32_dma_range smdk2800_dma_ranges[1];

static struct arm32_bus_dma_tag smdk2800_bus_dma = {
NULL, /* _ranges: set by init routine */
0, /* _nranges */

NULL, /* _cookie */

_bus_dmamap_create,
_bus_dmamap_destroy,
_bus_dmamap_load,
_bus_dmamap_load_mbuf,
_bus_dmamap_load_uio,
_bus_dmamap_load_raw,
_bus_dmamap_unload,
_bus_dmamap_sync,
NULL, /* sync_post */

_bus_dmamem_alloc,
_bus_dmamem_free,
_bus_dmamem_map,
_bus_dmamem_unmap,
_bus_dmamem_mmap,
};

bus_dma_tag_t
s3c2800_pci_dma_init(void)
{
extern paddr_t physical_start, physical_end;

smdk2800_dma_ranges[0].dr_sysbase = physical_start;
smdk2800_dma_ranges[0].dr_busbase =
0x80000000 + physical_start - S3C2800_DBANK0_START;
smdk2800_dma_ranges[0].dr_len = physical_end - physical_start;

smdk2800_bus_dma._ranges = smdk2800_dma_ranges;
smdk2800_bus_dma._nranges = 1;

return &smdk2800_bus_dma;
}