From mboxrd@z Thu Jan 1 00:00:00 1970 Date: 14 Nov 2001 03:00:45 -0000 Message-ID: <20011114030045.2376.qmail@mailweb9.rediffmail.com> MIME-Version: 1.0 From: "Sarnath Kannan" Reply-To: "Sarnath Kannan" To: "Dan Malek" Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: Re: IDE in Mode 1 (Sandpoint) how ? Content-type: text/plain; charset=iso-8859-1 Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: > > I forgot, is this an X2 or X3 (or X3b) version of the > Sandpoint? > Dan, This is an X2 board. I am able to telnet to the machine and work cooly..But serial is dead slow and the reason is as u said, ISA interrupts.. They are not coming in.. Its very clear. After a small investigation, I found out that the serial chip times out on the interrupt and "rs_timer" prints output in polled mode. By changing the "Timeout value", I was able to get faster output on the serial line. But the problem of ISA interrupts not being routed is still there. This is very irritating. Dan, I further noticed that "i8259_init" disables all 8259 interrupts during initialization. I thot this could be a reason and enabled all 8259 interrupts in a seperate loop. Even that dint pay much except for a gush of ISA interrupts immediately after enabling. But what I am wondering is "How ISA interrupts tick" for mvista kernel, when all 8259 interrupts are disabled !! Am i missing sthg ? Thanks, Sincerely Sarnath ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/