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clean up pci configuration a bit

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This commit is contained in:
mjacob 1999-02-09 00:35:35 +00:00
parent ed386461d5
commit c47d6855db
1 changed files with 24 additions and 18 deletions
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42
sys/dev/pci/isp_pci.c
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@ -1,5 +1,5 @@
/* $NetBSD: isp_pci.c,v 1.34 1999/01/30 07:08:04 mjacob Exp $ */
/* release_01_29_99 */
/* $NetBSD: isp_pci.c,v 1.35 1999/02/09 00:35:35 mjacob Exp $ */
/* release_02_05_99 */
/*
* PCI specific probe and attach routines for Qlogic ISP SCSI adapters.
*
@ -146,6 +146,7 @@ isp_pci_attach(parent, self, aux)
#ifdef DEBUG
static char oneshot = 1;
#endif
u_int32_t data;
struct pci_attach_args *pa = aux;
struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) self;
struct ispsoftc *isp = &pcs->pci_isp;
@ -191,16 +192,7 @@ isp_pci_attach(parent, self, aux)
}
bzero(isp->isp_param, sizeof (sdparam));
} else if (pa->pa_id == PCI_QLOGIC_ISP2100) {
u_int32_t data;
isp->isp_mdvec = &mdvec_2100;
if (ioh_valid == 0) {
printf("%s: warning, ISP2100 cannot use I/O Space"
" Mappings\n", isp->isp_name);
} else {
pcs->pci_st = iot;
pcs->pci_sh = ioh;
}
isp->isp_type = ISP_HA_FC_2100;
isp->isp_param = malloc(sizeof (fcparam), M_DEVBUF, M_NOWAIT);
if (isp->isp_param == NULL) {
@ -209,16 +201,30 @@ isp_pci_attach(parent, self, aux)
return;
}
bzero(isp->isp_param, sizeof (fcparam));
data = pci_conf_read(pa->pa_pc, pa->pa_tag,
PCI_COMMAND_STATUS_REG);
data |= PCI_COMMAND_MASTER_ENABLE |
PCI_COMMAND_INVALIDATE_ENABLE;
pci_conf_write(pa->pa_pc, pa->pa_tag,
PCI_COMMAND_STATUS_REG, data);
} else {
return;
}
/*
* Make sure that command register set sanely.
*/
data = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
data |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_INVALIDATE_ENABLE;
/*
* Not so sure about these- but I think it's important that they get
* enabled......
*/
data |= PCI_COMMAND_PARITY_ENABLE | PCI_COMMAND_SERR_ENABLE;
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, data);
/*
* Make sure that latency timer and cache line size is set sanely.
*/
data = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG);
data &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
data &= ~(PCI_CACHELINE_MASK << PCI_CACHELINE_SHIFT);
data |= (0x40 << PCI_LATTIMER_SHIFT);
data |= (0x10 << PCI_CACHELINE_SHIFT);
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, data);
#ifdef DEBUG
if (oneshot) {
oneshot = 0;