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Commit 082f2c1c authored by Greg Ungerer's avatar Greg Ungerer Committed by Linus Torvalds
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[PATCH] m68knommu: set irq priority/level different for each ColdFire serial port 



Set the hardware interrupt priority to a different value for each
attached ColdFire serial port.  According to the CPU documentation you
should not use the same combination of level/priority on more than one
device.  People have reported odd serial port behavior with them set the
same.

Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 892b6252

drivers/serial/mcfserial.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -1516,7 +1516,7 @@ static void mcfrs_irqinit(struct mcf_serial *info) 




	icrp = (volatile unsigned char *) (MCF_MBAR + MCFICM_INTC0 +

	icrp = (volatile unsigned char *) (MCF_MBAR + MCFICM_INTC0 +

		MCFINTC_ICR0 + MCFINT_UART0 + info->line);

		MCFINTC_ICR0 + MCFINT_UART0 + info->line);

	*icrp = 0x33; /* UART0 with level 6, priority 3 */

	*icrp = 0x30 + info->line; /* level 6, line based priority */





	imrp = (volatile unsigned long *) (MCF_MBAR + MCFICM_INTC0 +

	imrp = (volatile unsigned long *) (MCF_MBAR + MCFICM_INTC0 +

		MCFINTC_IMRL);

		MCFINTC_IMRL);