Messages in this thread Patch in this message | | | Date | Thu, 22 Apr 2010 19:50:03 +0300 | From | Denis Turischev <> | Subject | I/O operations order fix for SBC-FITPC2 watchdog |
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sbc_fitpc2_wdt: fixed I/O operations order
There are fitpc2 compatible boards that hang with existent i/o operations order. Solution is to switch between writing to data and command ports.
Signed-off-by: Denis Turischev <denis@compulab.co.il> --- drivers/watchdog/sbc_fitpc2_wdt.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c index 8d44c9b..226f0f2 100644 --- a/drivers/watchdog/sbc_fitpc2_wdt.c +++ b/drivers/watchdog/sbc_fitpc2_wdt.c @@ -45,10 +45,10 @@ static DEFINE_SPINLOCK(wdt_lock);
static void wdt_send_data(unsigned char command, unsigned char data) { - outb(command, COMMAND_PORT); - msleep(100); outb(data, DATA_PORT); msleep(200); + outb(command, COMMAND_PORT); + msleep(100); }
static void wdt_enable(void)
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