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Add a mips implementation of OF_decode_addr().

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This commit is contained in:
Ian Lepore 2015-12-21 18:19:14 +00:00
parent bc7b930020
commit 9b4d9c162a
2 changed files with 71 additions and 0 deletions
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1
sys/conf/files.mips
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@ -30,6 +30,7 @@ mips/mips/minidump_machdep.c standard
mips/mips/mp_machdep.c optional smp
mips/mips/mpboot.S optional smp
mips/mips/nexus.c standard
mips/mips/ofw_machdep.c optional fdt
mips/mips/pm_machdep.c standard
mips/mips/pmap.c standard
mips/mips/ptrace_machdep.c standard

70
sys/mips/mips/ofw_machdep.c Normal file
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@ -0,0 +1,70 @@
/*-
* Copyright (c) 2015 Ian Lepore <ian@freebsd.org>
* All rights excluded.
*
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/fdt.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_subr.h>
int
OF_decode_addr(phandle_t dev, int regno, bus_space_tag_t *tag,
bus_space_handle_t *handle)
{
bus_addr_t addr;
bus_size_t size;
pcell_t pci_hi;
int flags, res;
res = ofw_reg_to_paddr(dev, regno, &addr, &size, &pci_hi);
if (res < 0)
return (res);
/*
* Nothing special to do for PCI busses right now.
* This may need to be handled per-platform when it does come up.
*/
#ifdef notyet
if (pci_hi == OFW_PADDR_NOT_PCI) {
*tag = fdtbus_bs_tag;
flags = 0;
} else {
*tag = fdtbus_bs_tag;
flags = (pci_hi & OFW_PCI_PHYS_HI_PREFETCHABLE) ?
BUS_SPACE_MAP_PREFETCHABLE: 0;
}
#else
*tag = fdtbus_bs_tag;
flags = 0;
#endif
return (bus_space_map(*tag, addr, size, flags, handle));
}