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SuperI/O detection now happens unconditionally and before the chipset enable

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We could run it after chipset enable, but it definitely has to happen
before board enable because the board enable usually accesses the
SuperI/O. With this patch, it is possible to add a struct superio to the
board enable table for more accurate matching in case subsystem IDs are
ambiguous. This patch focuses on the generic infrastructure aspect and
on support for IT8712F/IT8716F.

Thanks go to Adrian Glaubitz and Ward Vandewege for testing.

Corresponding to flashrom svn r813.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Luc Verhaegen <libv@skynet.be>
Acked-by: Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
This commit is contained in:
Carl-Daniel Hailfinger
2009-12-22 23:42:04 +00:00
parent 72a9a02b38
commit 14e100c933
4 changed files with 108 additions and 13 deletions
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14
internal.c
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@ -125,6 +125,17 @@ void release_io_perms(void)
}
#if INTERNAL_SUPPORT == 1
struct superio superio = {};
void probe_superio(void)
{
superio = probe_superio_ite();
#if 0 /* Winbond SuperI/O code is not yet available. */
if (superio.vendor == SUPERIO_VENDOR_NONE)
superio = probe_superio_winbond();
#endif
}
int internal_init(void)
{
int ret = 0;
@ -142,6 +153,9 @@ int internal_init(void)
*/
coreboot_init();
/* Probe for the SuperI/O chip and fill global struct superio. */
probe_superio();
/* try to enable it. Failure IS an option, since not all motherboards
* really need this to be done, etc., etc.
*/