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From: Joakim Tjernlund <joakim.tjernlund@transmode.se>
To: "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: devicetree and IRQ7 mapping for T1042(mpic)
Date: Wed, 14 Oct 2015 19:37:32 +0000
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I am trying to figure out how to describe/map external IRQ7 in the devicetr=
ee.

Basically either IRQ7 to be left alone by Linux(becase u-boot already set i=
t up)
or map IRQ7 to sie 0(MPIC_EILR7=3D0xf0) and prio=3D0xf(MPIC_EIVPR7=3D0x4f00=
00)

There is no need for SW handler because IRQ7 will be routed to the DDR cont=
roller
and case an automatic Self Refresh just before CPU reset.

I cannot figure out how to do this. Any ideas?

If not possible from devicetree, then can one do it from board code?

 Jocke=