Date: Fri, 28 Aug 2015 10:35:23 +0200 From: Zbigniew Bodek <zbodek@gmail.com> To: Mihai Carabas <mihai.carabas@gmail.com> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: GIC - interrupts interpretation in DTS/FDT Message-ID: <CALF_TxkHNkVnyed1=ax1wodWSqNoH03OQxqafuD2mwKO1AW-CA@mail.gmail.com> In-Reply-To: <CANg1yUtKG228sck71TOhOJ%2BHJ%2BdVdo5Pic0XLvqTPWw%2BUVzFcA@mail.gmail.com> References: <CANg1yUtKG228sck71TOhOJ%2BHJ%2BdVdo5Pic0XLvqTPWw%2BUVzFcA@mail.gmail.com>
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Hello Mihai, This documents may be helpful: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/arm/gic.txt The meaning of each interrupt cell (for ARM GIC) is described there. Best regards zbb 2015-08-28 9:15 GMT+02:00 Mihai Carabas <mihai.carabas@gmail.com>: > Hi everyone, > > In the sys/arm/arm/gic.c there is a comment: "The hardware only supports > active-high-level or rising-edge". From where is this deducted? > > I'm looking in the TRM for Cortex-A15 and there are some interrupts > active-low-level. E.g.: "Virtual Timer event (PPI4) This is the event > generated from the virtual timer and uses ID27. The interrupt is active-LOW > level-sensitive." > > Thanks, > Mihai > _______________________________________________ > freebsd-arm@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"
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