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Add very basic support for the Intel i31244 Serial ATA controller. 

We only support legacy (i.e. PCI IDE compatible) mode, for now.  Also
note that DMA is disabled for rev 0 chips unless explicitly enabled
with PCIIDE_I31244_ENABLEDMA.
This commit is contained in:
thorpej 2003-03-18 01:13:08 +00:00
parent 099d07f374
commit 97cbf6847d
1 changed files with 110 additions and 2 deletions
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112
sys/dev/pci/pciide.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pciide.c,v 1.183 2003/03/15 12:23:34 bouyer Exp $ */
/* $NetBSD: pciide.c,v 1.184 2003/03/18 01:13:08 thorpej Exp $ */
/*
@ -76,7 +76,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pciide.c,v 1.183 2003/03/15 12:23:34 bouyer Exp $");
__KERNEL_RCSID(0, "$NetBSD: pciide.c,v 1.184 2003/03/18 01:13:08 thorpej Exp $");
#ifndef WDCDEBUG
#define WDCDEBUG
@ -157,6 +157,8 @@ pciide_pci_write(pc, pa, reg, val)
void default_chip_map __P((struct pciide_softc*, struct pci_attach_args*));
void sata_setup_channel __P((struct channel_softc*));
void piix_chip_map __P((struct pciide_softc*, struct pci_attach_args*));
void piix_setup_channel __P((struct channel_softc*));
void piix3_4_setup_channel __P((struct channel_softc*));
@ -227,6 +229,8 @@ int pciide_dma_finish __P((void*, int, int, int));
void pciide_irqack __P((struct channel_softc *));
void pciide_print_modes __P((struct pciide_channel *));
void artisea_chip_map __P((struct pciide_softc*, struct pci_attach_args *));
struct pciide_product_desc {
u_int32_t ide_product;
int ide_flags;
@ -308,6 +312,11 @@ const struct pciide_product_desc pciide_intel_products[] = {
"Intel 82801DB IDE Controller (ICH4)",
piix_chip_map,
},
{ PCI_PRODUCT_INTEL_31244,
0,
"Intel 31244 Serial ATA Controller",
artisea_chip_map,
},
{ 0,
0,
NULL,
@ -1557,6 +1566,49 @@ next:
}
}
void
sata_setup_channel(chp)
struct channel_softc *chp;
{
struct ata_drive_datas *drvp;
int drive;
u_int32_t idedma_ctl;
struct pciide_channel *cp = (struct pciide_channel*)chp;
struct pciide_softc *sc = (struct pciide_softc*)cp->wdc_channel.wdc;
/* setup DMA if needed */
pciide_channel_dma_setup(cp);
idedma_ctl = 0;
for (drive = 0; drive < 2; drive++) {
drvp = &chp->ch_drive[drive];
/* If no drive, skip */
if ((drvp->drive_flags & DRIVE) == 0)
continue;
if (drvp->drive_flags & DRIVE_UDMA) {
/* use Ultra/DMA */
drvp->drive_flags &= ~DRIVE_DMA;
idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
} else if (drvp->drive_flags & DRIVE_DMA) {
idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
}
}
/*
* Nothing to do to setup modes; it is meaningless in S-ATA
* (but many S-ATA drives still want to get the SET_FEATURE
* command).
*/
if (idedma_ctl != 0) {
/* Add software bits in status register */
bus_space_write_1(sc->sc_dma_iot, sc->sc_dma_ioh,
IDEDMA_CTL + (IDEDMA_SCH_OFFSET * chp->channel),
idedma_ctl);
}
pciide_print_modes(cp);
}
void
piix_chip_map(sc, pa)
struct pciide_softc *sc;
@ -5187,3 +5239,59 @@ serverworks_pci_intr(arg)
}
return rv;
}
void
artisea_chip_map(sc, pa)
struct pciide_softc *sc;
struct pci_attach_args *pa;
{
struct pciide_channel *cp;
bus_size_t cmdsize, ctlsize;
pcireg_t interface;
int channel;
if (pciide_chipen(sc, pa) == 0)
return;
printf("%s: bus-master DMA support resent",
sc->sc_wdcdev.sc_dev.dv_xname);
#ifndef PCIIDE_I31244_ENABLEDMA
if (PCI_REVISION(pa->pa_class) == 0) {
printf(" but disabled due to rev. 0");
sc->sc_dma_ok = 0;
} else
#endif
pciide_mapreg_dma(sc, pa);
printf("\n");
/*
* XXX Configure LEDs to show activity.
*/
sc->sc_wdcdev.PIO_cap = 4;
if (sc->sc_dma_ok) {
sc->sc_wdcdev.cap |= WDC_CAPABILITY_DMA | WDC_CAPABILITY_UDMA;
sc->sc_wdcdev.cap |= WDC_CAPABILITY_IRQACK;
sc->sc_wdcdev.irqack = pciide_irqack;
sc->sc_wdcdev.DMA_cap = 2;
sc->sc_wdcdev.UDMA_cap = 6;
}
sc->sc_wdcdev.set_modes = sata_setup_channel;
sc->sc_wdcdev.channels = sc->wdc_chanarray;
sc->sc_wdcdev.nchannels = PCIIDE_NUM_CHANNELS;
interface = PCI_INTERFACE(pa->pa_class);
for (channel = 0; channel < sc->sc_wdcdev.nchannels; channel++) {
cp = &sc->pciide_channels[channel];
if (pciide_chansetup(sc, channel, interface) == 0)
continue;
pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
pciide_pci_intr);
if (cp->hw_ok == 0)
continue;
pciide_map_compat_intr(pa, cp, channel, interface);
sata_setup_channel(&cp->wdc_channel);
}
}