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bus_dma, straight from arm32. Will probably need adjustments.

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This commit is contained in:
macallan 2010-07-07 22:53:44 +00:00
parent e2d47bd7fa
commit 5eda8ffc6c
2 changed files with 66 additions and 1 deletions
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6
sys/arch/arm/omap/files.omap2
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@ -1,4 +1,4 @@
# $NetBSD: files.omap2,v 1.3 2008/08/27 11:03:10 matt Exp $
# $NetBSD: files.omap2,v 1.4 2010/07/07 22:53:44 macallan Exp $
#
# Configuration info for Texas Instruments OMAP2/OMAP3 CPU support
# Based on xscale/files.pxa2x0
@ -7,6 +7,7 @@
include "arch/arm/pic/files.pic"
file arch/arm/arm32/irq_dispatch.S
file arch/arm/omap/omap_dma.c
# Memory size in megabytes
defparam opt_omap.h MEMSIZE
@ -83,6 +84,9 @@ file arch/arm/omap/omap2_gpmc.c gpmc
attach ohci at obio with obioohci
file arch/arm/omap/obio_ohci.c obioohci
device omapfb: rasops16, rasops8, wsemuldisplaydev, vcons
attach omapfb at obio
file arch/arm/omap/omapfb.c omapfb
# these bus space methods are not bus-specific ...
#

61
sys/arch/arm/omap/omap_dma.c Normal file
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@ -0,0 +1,61 @@
/* $NetBSD: omap_dma.c,v 1.2 2010/07/07 22:53:44 macallan Exp $ */
/*
* Copyright (c) 2010 Michael Lorenz
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: omap_dma.c,v 1.2 2010/07/07 22:53:44 macallan Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <uvm/uvm_extern.h>
#define _ARM32_BUS_DMA_PRIVATE
#include <machine/bus.h>
struct arm32_bus_dma_tag omap_bus_dma_tag = {
0,
0,
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
};