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path: root/drivers/ide/pci/pdc202xx_new.c
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Diffstat (limited to 'drivers/ide/pci/pdc202xx_new.c')
-rw-r--r--drivers/ide/pci/pdc202xx_new.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index cc0bfdcf1f1..ee5020df005 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -225,7 +225,10 @@ static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
{
- return get_indexed_reg(hwif, 0x0b) & 0x04;
+ if (get_indexed_reg(hwif, 0x0b) & 0x04)
+ return ATA_CBL_PATA40;
+ else
+ return ATA_CBL_PATA80;
}
static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
@@ -306,11 +309,13 @@ static long __devinit read_counter(u32 dma_base)
*/
static long __devinit detect_pll_input_clock(unsigned long dma_base)
{
+ struct timeval start_time, end_time;
long start_count, end_count;
- long pll_input;
+ long pll_input, usec_elapsed;
u8 scr1;
start_count = read_counter(dma_base);
+ do_gettimeofday(&start_time);
/* Start the test mode */
outb(0x01, dma_base + 0x01);
@@ -322,6 +327,7 @@ static long __devinit detect_pll_input_clock(unsigned long dma_base)
mdelay(10);
end_count = read_counter(dma_base);
+ do_gettimeofday(&end_time);
/* Stop the test mode */
outb(0x01, dma_base + 0x01);
@@ -333,7 +339,10 @@ static long __devinit detect_pll_input_clock(unsigned long dma_base)
* Calculate the input clock in Hz
* (the clock counter is 30 bit wide and counts down)
*/
- pll_input = ((start_count - end_count) & 0x3ffffff) * 100;
+ usec_elapsed = (end_time.tv_sec - start_time.tv_sec) * 1000000 +
+ (end_time.tv_usec - start_time.tv_usec);
+ pll_input = ((start_count - end_count) & 0x3ffffff) / 10 *
+ (10000000 / usec_elapsed);
DBG("start[%ld] end[%ld]\n", start_count, end_count);
@@ -503,8 +512,8 @@ static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
- if (!hwif->udma_four)
- hwif->udma_four = pdcnew_cable_detect(hwif) ? 0 : 1;
+ if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+ hwif->cbl = pdcnew_cable_detect(hwif);
if (!noautodma)
hwif->autodma = 1;