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alistair23-linux
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cmd640: convert to use ide_timing_find_mode() 

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
hifive-unleashed-5.1
Bartlomiej Zolnierkiewicz 2008-07-16 20:33:38 +02:00
parent 288911af12
commit 17b500de0a
2 changed files with 7 additions and 2 deletions
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1
drivers/ide/Kconfig
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@ -329,6 +329,7 @@ config BLK_DEV_PLATFORM
config BLK_DEV_CMD640
tristate "CMD640 chipset bugfix/support"
depends on X86
select IDE_TIMINGS
---help---
The CMD-Technologies CMD640 IDE chip is used on many common 486 and
Pentium motherboards, usually in combination with a "Neptune" or

8
drivers/ide/pci/cmd640.c
View File

@ -521,6 +521,7 @@ static void program_drive_counts(ide_drive_t *drive, unsigned int index)
static void cmd640_set_mode(ide_drive_t *drive, unsigned int index,
u8 pio_mode, unsigned int cycle_time)
{
struct ide_timing *t;
int setup_time, active_time, recovery_time, clock_time;
u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count;
int bus_speed;
@ -532,8 +533,11 @@ static void cmd640_set_mode(ide_drive_t *drive, unsigned int index,
if (pio_mode > 5)
pio_mode = 5;
setup_time = ide_pio_timings[pio_mode].setup_time;
active_time = ide_pio_timings[pio_mode].active_time;
t = ide_timing_find_mode(XFER_PIO_0 + pio_mode);
setup_time = t->setup;
active_time = t->active;
recovery_time = cycle_time - (setup_time + active_time);
clock_time = 1000 / bus_speed;
cycle_count = DIV_ROUND_UP(cycle_time, clock_time);