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path: root/drivers/ata/pata_hpt37x.c
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Diffstat (limited to 'drivers/ata/pata_hpt37x.c')
-rw-r--r--drivers/ata/pata_hpt37x.c37
1 files changed, 16 insertions, 21 deletions
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 5a0a410654e2..6446735a46e0 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -26,7 +26,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_hpt37x"
-#define DRV_VERSION "0.6.5"
+#define DRV_VERSION "0.6.6"
struct hpt_clock {
u8 xfer_speed;
@@ -931,15 +931,6 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
.udma_mask = 0x7f,
.port_ops = &hpt372_port_ops
};
- /* HPT371, 372 and friends - UDMA100 at 50MHz clock */
- static const struct ata_port_info info_hpt372_50 = {
- .sht = &hpt37x_sht,
- .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = 0x3f,
- .port_ops = &hpt372_port_ops
- };
/* HPT374 - UDMA133 */
static const struct ata_port_info info_hpt374 = {
.sht = &hpt37x_sht,
@@ -961,7 +952,7 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
u8 mcr1;
u32 freq;
int prefer_dpll = 1;
-
+
unsigned long iobase = pci_resource_start(dev, 4);
const struct hpt_chip *chip_table;
@@ -1055,7 +1046,7 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
*/
pci_write_config_byte(dev, 0x5b, 0x23);
-
+
/*
* HighPoint does this for HPT372A.
* NOTE: This register is only writeable via I/O space.
@@ -1088,7 +1079,7 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
* Turn the frequency check into a band and then find a timing
* table to match it.
*/
-
+
clock_slot = hpt37x_clock_slot(freq, chip_table->base);
if (chip_table->clocks[clock_slot] == NULL || prefer_dpll) {
/*
@@ -1098,17 +1089,21 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
* use a 50MHz DPLL by choice
*/
unsigned int f_low, f_high;
- int adjust;
-
- clock_slot = 2;
+ int dpll, adjust;
+
+ /* Compute DPLL */
+ dpll = 2;
if (port->udma_mask & 0xE0)
- clock_slot = 3;
-
- f_low = (MHz[clock_slot] * chip_table->base) / 192;
+ dpll = 3;
+
+ f_low = (MHz[clock_slot] * 48) / MHz[dpll];
f_high = f_low + 2;
+ if (clock_slot > 1)
+ f_high += 2;
/* Select the DPLL clock. */
pci_write_config_byte(dev, 0x5b, 0x21);
+ pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low);
for(adjust = 0; adjust < 8; adjust++) {
if (hpt37x_calibrate_dpll(dev))
@@ -1124,12 +1119,12 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
printk(KERN_WARNING "hpt37x: DPLL did not stabilize.\n");
return -ENODEV;
}
- if (clock_slot == 3)
+ if (dpll == 3)
private_data = (void *)hpt37x_timings_66;
else
private_data = (void *)hpt37x_timings_50;
- printk(KERN_INFO "hpt37x: Bus clock %dMHz, using DPLL.\n", MHz[clock_slot]);
+ printk(KERN_INFO "hpt37x: Bus clock %dMHz, using DPLL.\n", MHz[dpll]);
} else {
private_data = (void *)chip_table->clocks[clock_slot];
/*