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

[Kim Phillips]

On Mon, 9 Jul 2007 13:20:45 -0500
Stuart Yoder <b08248 at freescale.com> 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