I/O operations order fix for SBC-FITPC2 watchdog
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From: Denis Turischev on 22 Apr 2010 13:00 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(a)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) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |