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From: Nazarov Sergey <s-nazarov@domain.hid>
To: adeos-main@gna.org
Subject: [Adeos-main] Interrupt handling problem on Compulab EM-X270.
Date: Tue, 22 Feb 2011 23:10:47 +0300	[thread overview]
Message-ID: <274381298405447@domain.hid> (raw)

   Hi!
I'm trying to use i-pipe 1.18-01 on ARM XScale-PXA270 based Compulab EM-X270 board. Kernel version is 2.6.33.
With kernel, patched by i-pipe patch, network controller Davicom DM9000 standing unstable: sometimes a lot of packets are losing.
This happens with CONFIG_IPIPE disabled even. The reason is lost interrupts, I see. Network controller uses GPIO line to produce interrupts.
I have found that i-pipe patch changing irq handler handle_irq_edge to handle_irq_level (arch/arm/plat-pxa/gpio.c: pxa_init_gpio) without any conditions.
What's the reason for that changing? The back change to edge-type handler returns network controller to stable state.
   Best regards, Sergey.


             reply	other threads:[~2011-02-22 20:10 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-22 20:10 Nazarov Sergey [this message]
2011-02-22 20:21 ` [Adeos-main] Interrupt handling problem on Compulab EM-X270 Gilles Chanteperdrix
     [not found]   ` <437861298457092@domain.hid>
     [not found]     ` <4D64E2A4.7080105@domain.hid>
     [not found]       ` <661661298458316@domain.hid>
     [not found]         ` <4D64E810.4040005@domain.hid>
     [not found]           ` <549401298459119@domain.hid>
     [not found]             ` <4D64F94E.5040407@domain.hid>
     [not found]               ` <41131298550043@domain.hid>
2011-02-24 12:37                 ` Gilles Chanteperdrix

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