2 * Copyright (c) 2005 Rink Springer
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/kernel.h>
32 #include <sys/eventhandler.h>
33 #include <sys/reboot.h>
34 #include <machine/xbox.h>
39 #error You must have a I686_CPU in your kernel if you want to make an XBOX-compatible kernel
43 xbox_poweroff(void* junk, int howto)
45 if (!(howto & RB_POWEROFF))
56 if (!arch_i386_is_xbox)
59 /* register our poweroff function */
60 EVENTHANDLER_REGISTER (shutdown_final, xbox_poweroff, NULL,
64 * Some XBOX loaders, such as Cromwell, have a flaw which cause the
65 * nve(4) driver to fail attaching to the NIC.
67 * This is because they leave the NIC running; this will cause the
68 * Nvidia driver to fail as the NIC does not return any sensible
69 * values and thus fails attaching (using an error 0x5, this means
70 * it cannot find a valid PHY)
72 * We bluntly tell the NIC to stop whatever it's doing; this makes
73 * nve(4) attach correctly. As the NIC always resides at
74 * 0xfef00000-0xfef003ff on an XBOX, we simply hardcode this address.
76 ptr = pmap_mapdev (0xfef00000, 0x400);
77 *(uint32_t*)(ptr + 0x188) = 0; /* clear adapter control field */
78 pmap_unmapdev ((vm_offset_t)ptr, 0x400);
82 * This must be called before the drivers, as the if_nve(4) driver will fail
83 * if we do not do this in advance.
85 SYSINIT(xbox, SI_SUB_DRIVERS, SI_ORDER_FIRST, xbox_init, NULL);