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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2007-11-06 01:53:38 +0300
committerJeff Garzik <jeff@garzik.org>2007-11-06 02:08:46 +0300
commit73946f9fc5be1433f1e182d11303188390ff242f (patch)
tree123206e2090057dc1725c57624da016c1f2f6b81 /drivers/ata/pata_hpt37x.c
parent7f2803d0266844adacacbc3dea7822d5347ccb50 (diff)
downloadlinux-73946f9fc5be1433f1e182d11303188390ff242f.tar.xz
pata_hpt37x: Fix outstanding bug reports on the HPT374 and 37x cable detect
- Read frequency correctly - Correct cable detect handling - Fix wrong filter test Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_hpt37x.c')
-rw-r--r--drivers/ata/pata_hpt37x.c49
1 files changed, 36 insertions, 13 deletions
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index e61cb1fd57b2..3816b8605e0d 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -295,7 +295,7 @@ static unsigned long hpt370_filter(struct ata_device *adev, unsigned long mask)
static unsigned long hpt370a_filter(struct ata_device *adev, unsigned long mask)
{
- if (adev->class != ATA_DEV_ATA) {
+ if (adev->class == ATA_DEV_ATA) {
if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5))
mask &= ~ (0x1F << ATA_SHIFT_UDMA);
}
@@ -359,28 +359,25 @@ static int hpt374_pre_reset(struct ata_link *link, unsigned long deadline)
{ 0x50, 1, 0x04, 0x04 },
{ 0x54, 1, 0x04, 0x04 }
};
- u16 mcr3, mcr6;
+ u16 mcr3;
u8 ata66;
struct ata_port *ap = link->ap;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ unsigned int mcrbase = 0x50 + 4 * ap->port_no;
if (!pci_test_config_bits(pdev, &hpt37x_enable_bits[ap->port_no]))
return -ENOENT;
/* Do the extra channel work */
- pci_read_config_word(pdev, 0x52, &mcr3);
- pci_read_config_word(pdev, 0x56, &mcr6);
+ pci_read_config_word(pdev, mcrbase + 2, &mcr3);
/* Set bit 15 of 0x52 to enable TCBLID as input
- Set bit 15 of 0x56 to enable FCBLID as input
*/
- pci_write_config_word(pdev, 0x52, mcr3 | 0x8000);
- pci_write_config_word(pdev, 0x56, mcr6 | 0x8000);
+ pci_write_config_word(pdev, mcrbase + 2, mcr3 | 0x8000);
pci_read_config_byte(pdev, 0x5A, &ata66);
/* Reset TCBLID/FCBLID to output */
pci_write_config_word(pdev, 0x52, mcr3);
- pci_write_config_word(pdev, 0x56, mcr6);
- if (ata66 & (1 << ap->port_no))
+ if (ata66 & (2 >> ap->port_no))
ap->cbl = ATA_CBL_PATA40;
else
ap->cbl = ATA_CBL_PATA80;
@@ -844,6 +841,25 @@ static int hpt37x_calibrate_dpll(struct pci_dev *dev)
/* Never went stable */
return 0;
}
+
+static u32 hpt374_read_freq(struct pci_dev *pdev)
+{
+ u32 freq;
+ unsigned long io_base = pci_resource_start(pdev, 4);
+ if (PCI_FUNC(pdev->devfn) & 1) {
+ struct pci_dev *pdev_0 = pci_get_slot(pdev->bus, pdev->devfn - 1);
+ /* Someone hot plugged the controller on us ? */
+ if (pdev_0 == NULL)
+ return 0;
+ io_base = pci_resource_start(pdev_0, 4);
+ freq = inl(io_base + 0x90);
+ pci_dev_put(pdev_0);
+ }
+ else
+ freq = inl(io_base + 0x90);
+ return freq;
+}
+
/**
* hpt37x_init_one - Initialise an HPT37X/302
* @dev: PCI device
@@ -902,7 +918,7 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
- .udma_mask = 0x0f,
+ .udma_mask = ATA_UDMA5,
.port_ops = &hpt370_port_ops
};
/* HPT370A - UDMA100 */
@@ -911,7 +927,7 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
- .udma_mask = 0x0f,
+ .udma_mask = ATA_UDMA5,
.port_ops = &hpt370a_port_ops
};
/* HPT371, 372 and friends - UDMA133 */
@@ -1047,9 +1063,16 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
outb(0x0e, iobase + 0x9c);
/* Some devices do not let this value be accessed via PCI space
- according to the old driver */
+ according to the old driver. In addition we must use the value
+ from FN 0 on the HPT374 */
+
+ if (chip_table == &hpt374) {
+ freq = hpt374_read_freq(dev);
+ if (freq == 0)
+ return -ENODEV;
+ } else
+ freq = inl(iobase + 0x90);
- freq = inl(iobase + 0x90);
if ((freq >> 12) != 0xABCDE) {
int i;
u8 sr;