/*
* pata_amd.c - AMD PATA for new ATA layer
* (C) 2005-2006 Red Hat Inc
- * Alan Cox <alan@redhat.com>
*
* Based on pata-sil680. Errata information is taken from data sheets
* and the amd74xx.c driver by Vojtech Pavlik. Nvidia SATA devices are
#include <linux/libata.h>
#define DRV_NAME "pata_amd"
-#define DRV_VERSION "0.3.10"
+#define DRV_VERSION "0.4.1"
/**
* timing_setup - shared timing computation and load
u8 t;
T = 1000000000 / amd_clock;
- UT = T / min_t(int, max_t(int, clock, 1), 2);
+ UT = T;
+ if (clock >= 2)
+ UT = T / 2;
if (ata_timing_compute(adev, speed, &at, T, UT) < 0) {
dev_printk(KERN_ERR, &pdev->dev, "unknown mode %d.\n", speed);
/* Configure the address set up timing */
pci_read_config_byte(pdev, offset + 0x0C, &t);
- t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(at.setup, 1, 4) - 1) << ((3 - dn) << 1));
+ t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(at.setup, 1, 4) - 1) << ((3 - dn) << 1));
pci_write_config_byte(pdev, offset + 0x0C , t);
/* Configure the 8bit I/O timing */
pci_write_config_byte(pdev, offset + 0x0E + (1 - (dn >> 1)),
- ((FIT(at.act8b, 1, 16) - 1) << 4) | (FIT(at.rec8b, 1, 16) - 1));
+ ((clamp_val(at.act8b, 1, 16) - 1) << 4) | (clamp_val(at.rec8b, 1, 16) - 1));
/* Drive timing */
pci_write_config_byte(pdev, offset + 0x08 + (3 - dn),
- ((FIT(at.active, 1, 16) - 1) << 4) | (FIT(at.recover, 1, 16) - 1));
+ ((clamp_val(at.active, 1, 16) - 1) << 4) | (clamp_val(at.recover, 1, 16) - 1));
switch (clock) {
case 1:
- t = at.udma ? (0xc0 | (FIT(at.udma, 2, 5) - 2)) : 0x03;
+ t = at.udma ? (0xc0 | (clamp_val(at.udma, 2, 5) - 2)) : 0x03;
break;
case 2:
- t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 2, 10)]) : 0x03;
+ t = at.udma ? (0xc0 | amd_cyc2udma[clamp_val(at.udma, 2, 10)]) : 0x03;
break;
case 3:
- t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 10)]) : 0x03;
+ t = at.udma ? (0xc0 | amd_cyc2udma[clamp_val(at.udma, 1, 10)]) : 0x03;
break;
case 4:
- t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 15)]) : 0x03;
+ t = at.udma ? (0xc0 | amd_cyc2udma[clamp_val(at.udma, 1, 15)]) : 0x03;
break;
default:
if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no]))
return -ENOENT;
- return ata_std_prereset(link, deadline);
+ return ata_sff_prereset(link, deadline);
}
-static void amd_error_handler(struct ata_port *ap)
-{
- ata_bmdma_drive_eh(ap, amd_pre_reset, ata_std_softreset, NULL,
- ata_std_postreset);
-}
+/**
+ * amd_cable_detect - report cable type
+ * @ap: port
+ *
+ * AMD controller/BIOS setups record the cable type in word 0x42
+ */
static int amd_cable_detect(struct ata_port *ap)
{
}
/**
+ * amd_fifo_setup - set the PIO FIFO for ATA/ATAPI
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Set the PCI fifo for this device according to the devices present
+ * on the bus at this point in time. We need to turn the post write buffer
+ * off for ATAPI devices as we may need to issue a word sized write to the
+ * device as the final I/O
+ */
+
+static void amd_fifo_setup(struct ata_port *ap)
+{
+ struct ata_device *adev;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static const u8 fifobit[2] = { 0xC0, 0x30};
+ u8 fifo = fifobit[ap->port_no];
+ u8 r;
+
+
+ ata_for_each_dev(adev, &ap->link, ENABLED) {
+ if (adev->class == ATA_DEV_ATAPI)
+ fifo = 0;
+ }
+ if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411) /* FIFO is broken */
+ fifo = 0;
+
+ /* On the later chips the read prefetch bits become no-op bits */
+ pci_read_config_byte(pdev, 0x41, &r);
+ r &= ~fifobit[ap->port_no];
+ r |= fifo;
+ pci_write_config_byte(pdev, 0x41, r);
+}
+
+/**
* amd33_set_piomode - set initial PIO mode data
* @ap: ATA interface
* @adev: ATA device
static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
+ amd_fifo_setup(ap);
timing_setup(ap, adev, 0x40, adev->pio_mode, 1);
}
static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
+ amd_fifo_setup(ap);
timing_setup(ap, adev, 0x40, adev->pio_mode, 2);
}
static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
+ amd_fifo_setup(ap);
timing_setup(ap, adev, 0x40, adev->pio_mode, 3);
}
static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
+ amd_fifo_setup(ap);
timing_setup(ap, adev, 0x40, adev->pio_mode, 4);
}
limit |= ATA_MASK_PIO;
if (!(limit & (ATA_MASK_MWDMA | ATA_MASK_UDMA)))
limit |= ATA_MASK_MWDMA | ATA_MASK_UDMA;
+ /* PIO4, MWDMA2, UDMA2 should always be supported regardless of
+ cable detection result */
+ limit |= ata_pack_xfermask(ATA_PIO4, ATA_MWDMA2, ATA_UDMA2);
ata_port_printk(ap, KERN_DEBUG, "nv_mode_filter: 0x%lx&0x%lx->0x%lx, "
"BIOS=0x%lx (0x%x) ACPI=0x%lx%s\n",
if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no]))
return -ENOENT;
- return ata_std_prereset(link, deadline);
-}
-
-static void nv_error_handler(struct ata_port *ap)
-{
- ata_bmdma_drive_eh(ap, nv_pre_reset,
- ata_std_softreset, NULL,
- ata_std_postreset);
+ return ata_sff_prereset(link, deadline);
}
/**
};
static const struct ata_port_operations amd_base_port_ops = {
- .inherits = &ata_bmdma_port_ops,
- .error_handler = amd_error_handler,
+ .inherits = &ata_bmdma32_port_ops,
+ .prereset = amd_pre_reset,
};
static struct ata_port_operations amd33_port_ops = {
.inherits = &ata_bmdma_port_ops,
.cable_detect = ata_cable_ignore,
.mode_filter = nv_mode_filter,
- .error_handler = nv_error_handler,
+ .prereset = nv_pre_reset,
.host_stop = nv_host_stop,
};
.set_dmamode = nv133_set_dmamode,
};
+static void amd_clear_fifo(struct pci_dev *pdev)
+{
+ u8 fifo;
+ /* Disable the FIFO, the FIFO logic will re-enable it as
+ appropriate */
+ pci_read_config_byte(pdev, 0x41, &fifo);
+ fifo &= 0x0F;
+ pci_write_config_byte(pdev, 0x41, fifo);
+}
+
static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
static const struct ata_port_info info[10] = {
- { /* 0: AMD 7401 */
- .sht = &amd_sht,
+ { /* 0: AMD 7401 - no swdma */
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07, /* No SWDMA */
- .udma_mask = 0x07, /* UDMA 33 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA2,
.port_ops = &amd33_port_ops
},
{ /* 1: Early AMD7409 - no swdma */
- .sht = &amd_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA4, /* UDMA 66 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA4,
.port_ops = &amd66_port_ops
},
- { /* 2: AMD 7409, no swdma errata */
- .sht = &amd_sht,
+ { /* 2: AMD 7409 */
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA4, /* UDMA 66 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA4,
.port_ops = &amd66_port_ops
},
{ /* 3: AMD 7411 */
- .sht = &amd_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA5, /* UDMA 100 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA5,
.port_ops = &amd100_port_ops
},
{ /* 4: AMD 7441 */
- .sht = &amd_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA5, /* UDMA 100 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA5,
.port_ops = &amd100_port_ops
},
- { /* 5: AMD 8111*/
- .sht = &amd_sht,
+ { /* 5: AMD 8111 - no swdma */
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA6, /* UDMA 133, no swdma */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
.port_ops = &amd133_port_ops
},
- { /* 6: AMD 8111 UDMA 100 (Serenade) */
- .sht = &amd_sht,
+ { /* 6: AMD 8111 UDMA 100 (Serenade) - no swdma */
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA5, /* UDMA 100, no swdma */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA5,
.port_ops = &amd133_port_ops
},
{ /* 7: Nvidia Nforce */
- .sht = &amd_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA5, /* UDMA 100 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA5,
.port_ops = &nv100_port_ops
},
- { /* 8: Nvidia Nforce2 and later */
- .sht = &amd_sht,
+ { /* 8: Nvidia Nforce2 and later - no swdma */
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA6, /* UDMA 133, no swdma */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
.port_ops = &nv133_port_ops
},
{ /* 9: AMD CS5536 (Geode companion) */
- .sht = &amd_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = ATA_UDMA5, /* UDMA 100 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA5,
.port_ops = &amd100_port_ops
}
};
- struct ata_port_info pi;
- const struct ata_port_info *ppi[] = { &pi, NULL };
+ const struct ata_port_info *ppi[] = { NULL, NULL };
static int printed_version;
int type = id->driver_data;
+ void *hpriv = NULL;
u8 fifo;
int rc;
/*
* Okay, type is determined now. Apply type-specific workarounds.
*/
- pi = info[type];
+ ppi[0] = &info[type];
if (type < 3)
- ata_pci_clear_simplex(pdev);
-
- /* Check for AMD7411 */
- if (type == 3)
- /* FIFO is broken */
- pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
- else
- pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
-
+ ata_pci_bmdma_clear_simplex(pdev);
+ if (pdev->vendor == PCI_VENDOR_ID_AMD)
+ amd_clear_fifo(pdev);
/* Cable detection on Nvidia chips doesn't work too well,
* cache BIOS programmed UDMA mode.
*/
u32 udma;
pci_read_config_dword(pdev, 0x60, &udma);
- pi.private_data = (void *)(unsigned long)udma;
+ hpriv = (void *)(unsigned long)udma;
}
/* And fire it up */
- return ata_pci_init_one(pdev, ppi);
+ return ata_pci_sff_init_one(pdev, ppi, &amd_sht, hpriv);
}
#ifdef CONFIG_PM
return rc;
if (pdev->vendor == PCI_VENDOR_ID_AMD) {
- u8 fifo;
- pci_read_config_byte(pdev, 0x41, &fifo);
- if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411)
- /* FIFO is broken */
- pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
- else
- pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
+ amd_clear_fifo(pdev);
if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7409 ||
pdev->device == PCI_DEVICE_ID_AMD_COBRA_7401)
- ata_pci_clear_simplex(pdev);
+ ata_pci_bmdma_clear_simplex(pdev);
}
-
ata_host_resume(host);
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff