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Disable unwanted isa interrupts.

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This commit is contained in:
Doug Rabson 1998-09-16 08:23:51 +00:00
parent 129957363e
commit f9f51c39c3
1 changed files with 8 additions and 1 deletions
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9
sys/alpha/isa/isa.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: isa.c,v 1.2 1998/07/27 09:38:26 dfr Exp $
* $Id: isa.c,v 1.3 1998/08/10 07:53:59 dfr Exp $
*/
#include <sys/param.h>
@ -195,6 +195,13 @@ extern device_t isa_bus_device;
static int
isa_attach(device_t dev)
{
if (bootverbose)
printf("isa_attach: mask=%04x\n", isa_irq_mask());
/* mask all isa interrupts */
outb(IO_ICU1+1, 0xff);
outb(IO_ICU2+1, 0xff);
/* make sure chaining irq is enabled */
isa_intr_enable(2);