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Re: [PATCH] malta4kec hang in calibrate_delay fix

To: yshi <>
Subject: Re: [PATCH] malta4kec hang in calibrate_delay fix
From: Chris Dearman <>
Date: Wed, 05 Sep 2007 11:49:26 +0100
Cc: Ralf Baechle <>,
In-reply-to: <1188971483.4145.17.camel@yshi.CORP>
Organization: MIPS Technologies
Original-recipient: rfc822;
References: <> <> <1188971483.4145.17.camel@yshi.CORP>
User-agent: Icedove (X11/20070607)
yshi wrote:
According MIPS32 Release 2 specification, IntCtl.IPTI bits should not be
zero, at least 2 and it's readonly. So, is my board defective or an old
version? Thanks.

The IntCtl.IPTI field is initialised by some external signals going into the core. These signals should be driven by some wrapper code built into the FPGA bitfile. It sounds like you may have an old or misconfigured bitfile. I think the best bet is to contact MIPS support ( who can supply you with an updated bitfile if required.


Chris Dearman          7200 Cambridge Research Park     +44 1223 203108
MIPS Technologies (UK) Waterbeach, Cambs CB25 9TL  fax  +44 1223 203181

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