diff options
author | rink <rink@FreeBSD.org> | 2006-02-04 10:01:33 +0000 |
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committer | rink <rink@FreeBSD.org> | 2006-02-04 10:01:33 +0000 |
commit | fc05a842314275a07e1444ec492afc048d9dfb93 (patch) | |
tree | 0e40e617da02304564392ace682e7d3cecbcc426 /sys/i386/xbox | |
parent | a943b1ff7ae45887c285816dbc6eab43b4585910 (diff) | |
download | FreeBSD-src-fc05a842314275a07e1444ec492afc048d9dfb93.zip FreeBSD-src-fc05a842314275a07e1444ec492afc048d9dfb93.tar.gz |
Patch to allow XBox-users to use the onboard nve(4) nForce ethernet driver.
The patch crudely forces the NIC out of operating mode before the nve(4)
driver can initialize it; this is required to properly initialize the NIC.
It is XBox-specific, as this condition can only occur on XBoxes (Most loaders
will simply leave the NIC running, forcing us to use a crude workaround like
this to get it in a workable condition). Due to the XBox-only aspect, this has
been solved in XBox-specific initialization code and not within nve(4).
Reviewed by: imp
Approved by: imp (mentor)
No objection: bz@, obrien@, q@ontheweb.com.au
Diffstat (limited to 'sys/i386/xbox')
-rw-r--r-- | sys/i386/xbox/xbox.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/sys/i386/xbox/xbox.c b/sys/i386/xbox/xbox.c index b0da531..dae9ba2 100644 --- a/sys/i386/xbox/xbox.c +++ b/sys/i386/xbox/xbox.c @@ -27,10 +27,13 @@ * $FreeBSD$ */ #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> #include "opt_global.h" #ifndef I686_CPU @@ -49,12 +52,35 @@ xbox_poweroff(void* junk, int howto) 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); } -SYSINIT(xbox, SI_SUB_CONFIGURE, SI_ORDER_MIDDLE, xbox_init, NULL) +/* + * 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) |