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Make sure PIRQD enable bit is set. From FreeBSD.

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This commit is contained in:
augustss 2000-01-25 11:26:06 +00:00
parent dccf05f858
commit 73ce2abd33
1 changed files with 9 additions and 2 deletions
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11
sys/dev/pci/uhci_pci.c
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@ -1,4 +1,4 @@
/* $NetBSD: uhci_pci.c,v 1.13 1999/11/20 00:57:08 augustss Exp $ */
/* $NetBSD: uhci_pci.c,v 1.14 2000/01/25 11:26:06 augustss Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -99,7 +99,7 @@ uhci_pci_attach(parent, self, aux)
pci_chipset_tag_t pc = pa->pa_pc;
char const *intrstr;
pci_intr_handle_t ih;
pcireg_t csr;
pcireg_t csr, legsup;
char *vendor;
char *devname = sc->sc.sc_bus.bdev.dv_xname;
char devinfo[256];
@ -143,6 +143,13 @@ uhci_pci_attach(parent, self, aux)
}
printf("%s: interrupting at %s\n", devname, intrstr);
/* Verify that the PIRQD enable bit is set, some BIOS's don't do that*/
legsup = pci_conf_read(pc, pa->pa_tag, PCI_LEGSUP);
if (!(legsup & PCI_LEGSUP_USBPIRQDEN)) {
legsup = PCI_LEGSUP_USBPIRQDEN;
pci_conf_write(pc, pa->pa_tag, PCI_LEGSUP, legsup);
}
switch(pci_conf_read(pc, pa->pa_tag, PCI_USBREV) & PCI_USBREV_MASK) {
case PCI_USBREV_PRE_1_0:
sc->sc.sc_bus.usbrev = USBREV_PRE_1_0;