Thread (3 messages) flat view 3 messages, 3 authors, 2007-07-10

Re: [PATCH][POWERPC] document ipic level/sense info

From: Kim Phillips <hidden>
Date: 2007-07-09 21:08:14

On Mon, 9 Jul 2007 13:20:45 -0500
Stuart Yoder [off-list ref] wrote:
+5) Freescale IPIC Interrupt Controllers
+---------------------------------------
+
+IPIC interrupt controllers are specific to Freescale 83xx
+SOCs.  Two cells are required to encode interrupt information.
+The first cell defines the interrupt number.  The second cell
+defines the sense and level information.
+
+Sense and level information follows the Linux convention
+(specified in include/linux/interrupt.h) and should be encoded
+as follows:
+
+	1 =  low to high edge sensitive type enabled
the IPIC doesn't support this sense type.
+	2 =  high to low edge sensitive type enabled
+	4 =  active high level sensitive type enabled
nor this.

i.e, sense types 1 and 4 should not be documented in an IPIC context.

Kim
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