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Do not record BARs for IDE controllers in compatibility mode.

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This commit is contained in:
Philip Homburg 2006-04-12 11:18:13 +00:00
parent ef7f412175
commit 2dc693cfe5
1 changed files with 52 additions and 1 deletions
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53
drivers/pci/pci.c
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@ -912,13 +912,62 @@ int devind;
PRIVATE void record_bars(devind)
int devind;
{
int i, reg, prefetch, type;
int i, j, reg, prefetch, type, clear_01, clear_23, pb_nr;
u32_t bar, bar2;
for (i= 0, reg= PCI_BAR; reg <= PCI_BAR_6; i++, reg += 4)
{
record_bar(devind, i);
}
/* Special case code for IDE controllers in compatibility mode */
if (pcidev[devind].pd_baseclass == PCI_BCR_MASS_STORAGE &&
pcidev[devind].pd_subclass == PCI_MS_IDE)
{
/* IDE device */
clear_01= 0;
clear_23= 0;
if (!(pcidev[devind].pd_infclass & PCI_IDE_PRI_NATIVE))
{
if (debug)
{
printf(
"primary channel is not in native mode, clearing BARs 0 and 1\n");
}
clear_01= 1;
}
if (!(pcidev[devind].pd_infclass & PCI_IDE_SEC_NATIVE))
{
if (debug)
{
printf(
"primary channel is not in native mode, clearing BARs 2 and 3\n");
}
clear_23= 1;
}
j= 0;
for (i= 0; i<pcidev[devind].pd_bar_nr; i++)
{
pb_nr= pcidev[devind].pd_bar[i].pb_nr;
if ((pb_nr == 0 || pb_nr == 1) && clear_01)
{
if (debug) printf("skipping bar %d\n", pb_nr);
continue; /* Skip */
}
if ((pb_nr == 2 || pb_nr == 3) && clear_23)
{
if (debug) printf("skipping bar %d\n", pb_nr);
continue; /* Skip */
}
if (i == j)
continue; /* No need to copy */
pcidev[devind].pd_bar[j]=
pcidev[devind].pd_bar[i];
j++;
}
pcidev[devind].pd_bar_nr= j;
}
}
/*===========================================================================*
@ -1251,6 +1300,7 @@ PRIVATE void complete_bars()
continue;
if (base+size <= iogap_low)
continue;
#if 0
if (debug)
{
printf(
@ -1258,6 +1308,7 @@ PRIVATE void complete_bars()
i, pcidev[i].pd_vid, pcidev[i].pd_did,
j, base, size);
}
#endif
if (base+size-iogap_low < iogap_high-base)
iogap_low= base+size;
else