/*
* pata_via.c - VIA PATA for new ATA layer
* (C) 2005-2006 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Documentation
* Most chipset documentation available under NDA only
#include <linux/dmi.h>
#define DRV_NAME "pata_via"
-#define DRV_VERSION "0.3.3"
+#define DRV_VERSION "0.3.4"
/*
* The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx
VIA_SATA_PATA = 0x800, /* SATA/PATA combined configuration */
};
+enum {
+ VIA_IDFLAG_SINGLE = (1 << 0), /* single channel controller) */
+};
+
/*
* VIA SouthBridge chips.
*/
u8 rev_max;
u16 flags;
} via_isa_bridges[] = {
+ { "vx855", PCI_DEVICE_ID_VIA_VX855, 0x00, 0x2f,
+ VIA_UDMA_133 | VIA_BAD_AST | VIA_SATA_PATA },
{ "vx800", PCI_DEVICE_ID_VIA_VX800, 0x00, 0x2f, VIA_UDMA_133 |
VIA_BAD_AST | VIA_SATA_PATA },
+ { "vt8261", PCI_DEVICE_ID_VIA_8261, 0x00, 0x2f,
+ VIA_UDMA_133 | VIA_BAD_AST },
{ "vt8237s", PCI_DEVICE_ID_VIA_8237S, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
{ "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
{ "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_SATA_PATA },
- { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES},
+ { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES },
+ { "vt6415", PCI_DEVICE_ID_VIA_6415, 0x00, 0xff, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES },
{ "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
{ "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
{ "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
{ "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, VIA_UDMA_NONE | VIA_SET_FIFO },
{ "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK },
{ "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
+ { "vtxxxx", PCI_DEVICE_ID_VIA_ANON, 0x00, 0x2f,
+ VIA_UDMA_133 | VIA_BAD_AST },
{ NULL }
};
+struct via_port {
+ u8 cached_device;
+};
/*
* Cable special cases
}
/**
- * via_ata_sff_tf_load - send taskfile registers to host controller
+ * via_tf_load - send taskfile registers to host controller
* @ap: Port to which output is sent
* @tf: ATA taskfile register set
*
* Outputs ATA taskfile to standard ATA host controller.
*
* Note: This is to fix the internal bug of via chipsets, which
- * will reset the device register after changing the IEN bit on
- * ctl register
+ * will reset the device register after changing the IEN bit on
+ * ctl register
*/
-static void via_ata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
+static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
{
struct ata_ioports *ioaddr = &ap->ioaddr;
+ struct via_port *vp = ap->private_data;
unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
+ int newctl = 0;
if (tf->ctl != ap->last_ctl) {
iowrite8(tf->ctl, ioaddr->ctl_addr);
- iowrite8(tf->device, ioaddr->device_addr);
ap->last_ctl = tf->ctl;
ata_wait_idle(ap);
+ newctl = 1;
}
+ if (tf->flags & ATA_TFLAG_DEVICE) {
+ iowrite8(tf->device, ioaddr->device_addr);
+ vp->cached_device = tf->device;
+ } else if (newctl)
+ iowrite8(vp->cached_device, ioaddr->device_addr);
+
if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
+ WARN_ON_ONCE(!ioaddr->ctl_addr);
iowrite8(tf->hob_feature, ioaddr->feature_addr);
iowrite8(tf->hob_nsect, ioaddr->nsect_addr);
iowrite8(tf->hob_lbal, ioaddr->lbal_addr);
tf->lbah);
}
- if (tf->flags & ATA_TFLAG_DEVICE) {
- iowrite8(tf->device, ioaddr->device_addr);
- VPRINTK("device 0x%X\n", tf->device);
- }
-
ata_wait_idle(ap);
}
+static int via_port_start(struct ata_port *ap)
+{
+ struct via_port *vp;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ int ret = ata_sff_port_start(ap);
+ if (ret < 0)
+ return ret;
+
+ vp = devm_kzalloc(&pdev->dev, sizeof(struct via_port), GFP_KERNEL);
+ if (vp == NULL)
+ return -ENOMEM;
+ ap->private_data = vp;
+ return 0;
+}
+
static struct scsi_host_template via_sht = {
ATA_BMDMA_SHT(DRV_NAME),
};
.set_piomode = via_set_piomode,
.set_dmamode = via_set_dmamode,
.prereset = via_pre_reset,
- .sff_tf_load = via_ata_tf_load,
+ .sff_tf_load = via_tf_load,
+ .port_start = via_port_start,
};
static struct ata_port_operations via_port_ops_noirq = {
.inherits = &via_port_ops,
.sff_data_xfer = ata_sff_data_xfer_noirq,
- .sff_tf_load = via_ata_tf_load,
};
/**
/* Early VIA without UDMA support */
static const struct ata_port_info via_mwdma_info = {
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.port_ops = &via_port_ops
};
/* Ditto with IRQ masking required */
static const struct ata_port_info via_mwdma_info_borked = {
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.port_ops = &via_port_ops_noirq,
};
/* VIA UDMA 33 devices (and borked 66) */
static const struct ata_port_info via_udma33_info = {
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA2,
.port_ops = &via_port_ops
};
/* VIA UDMA 66 devices */
static const struct ata_port_info via_udma66_info = {
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA4,
.port_ops = &via_port_ops
};
/* VIA UDMA 100 devices */
static const struct ata_port_info via_udma100_info = {
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
.port_ops = &via_port_ops
};
/* UDMA133 with bad AST (All current 133) */
static const struct ata_port_info via_udma133_info = {
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6, /* FIXME: should check north bridge */
.port_ops = &via_port_ops
};
const struct ata_port_info *ppi[] = { NULL, NULL };
- struct pci_dev *isa = NULL;
+ struct pci_dev *isa;
const struct via_isa_bridge *config;
static int printed_version;
u8 enable;
u32 timing;
+ unsigned long flags = id->driver_data;
int rc;
if (!printed_version++)
if (rc)
return rc;
+ if (flags & VIA_IDFLAG_SINGLE)
+ ppi[1] = &ata_dummy_port_info;
+
/* To find out how the IDE will behave and what features we
actually have to look at the bridge not the IDE controller */
- for (config = via_isa_bridges; config->id; config++)
+ for (config = via_isa_bridges; config->id != PCI_DEVICE_ID_VIA_ANON;
+ config++)
if ((isa = pci_get_device(PCI_VENDOR_ID_VIA +
!!(config->flags & VIA_BAD_ID),
config->id, NULL))) {
+ u8 rev = isa->revision;
+ pci_dev_put(isa);
- if (isa->revision >= config->rev_min &&
- isa->revision <= config->rev_max)
+ if (rev >= config->rev_min && rev <= config->rev_max)
break;
- pci_dev_put(isa);
}
- if (!config->id) {
- printk(KERN_WARNING "via: Unknown VIA SouthBridge, disabling.\n");
- return -ENODEV;
- }
- pci_dev_put(isa);
-
if (!(config->flags & VIA_NO_ENABLES)) {
/* 0x40 low bits indicate enabled channels */
pci_read_config_byte(pdev, 0x40 , &enable);
#endif
static const struct pci_device_id via[] = {
+ { PCI_VDEVICE(VIA, 0x0415), },
{ PCI_VDEVICE(VIA, 0x0571), },
{ PCI_VDEVICE(VIA, 0x0581), },
{ PCI_VDEVICE(VIA, 0x1571), },
{ PCI_VDEVICE(VIA, 0x3164), },
{ PCI_VDEVICE(VIA, 0x5324), },
+ { PCI_VDEVICE(VIA, 0xC409), VIA_IDFLAG_SINGLE },
{ },
};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff