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/*-
* Copyright (c) 2005 Rink Springer
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/eventhandler.h>
#include <sys/reboot.h>
#include <machine/xbox.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#ifndef I686_CPU
#error You must have a I686_CPU in your kernel if you want to make an XBOX-compatible kernel
#endif
static void
xbox_poweroff(void* junk, int howto)
{
if (!(howto & RB_POWEROFF))
return;
pic16l_poweroff();
}
static void
xbox_init(void)
{
char* ptr;
if (!arch_i386_is_xbox)
return;
/* register our poweroff function */
EVENTHANDLER_REGISTER (shutdown_final, xbox_poweroff, NULL,
SHUTDOWN_PRI_LAST);
/*
* Some XBOX loaders, such as Cromwell, have a flaw which cause the
* nve(4) driver to fail attaching to the NIC.
*
* This is because they leave the NIC running; this will cause the
* Nvidia driver to fail as the NIC does not return any sensible
* values and thus fails attaching (using an error 0x5, this means
* it cannot find a valid PHY)
*
* We bluntly tell the NIC to stop whatever it's doing; this makes
* nve(4) attach correctly. As the NIC always resides at
* 0xfef00000-0xfef003ff on an XBOX, we simply hardcode this address.
*/
ptr = pmap_mapdev (0xfef00000, 0x400);
*(uint32_t*)(ptr + 0x188) = 0; /* clear adapter control field */
pmap_unmapdev ((vm_offset_t)ptr, 0x400);
}
/*
* This must be called before the drivers, as the if_nve(4) driver will fail
* if we do not do this in advance.
*/
SYSINIT(xbox, SI_SUB_DRIVERS, SI_ORDER_FIRST, xbox_init, NULL);
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