From: Shawn Guo <shawn.guo@freescale.com>
To: Huang Shijie <b32955@freescale.com>
Cc: arnd@arndb.de, dedekind1@gmail.com,
"Koen Beel" <koen.beel.barco@gmail.com>,
"Wolfram Sang" <w.sang@pengutronix.de>,
linux-mtd@lists.infradead.org, shijie8@gmail.com,
linux-arm-kernel@lists.infradead.org,
"Lothar Waßmann" <LW@karo-electronics.de>
Subject: Re: [PATCH v8 0/3] add the GPMI controller driver for IMX23/IMX28
Date: Tue, 2 Aug 2011 15:16:08 +0800 [thread overview]
Message-ID: <20110802071607.GA17297@freescale.com> (raw)
In-Reply-To: <4E37970C.4070903@freescale.com>
On Tue, Aug 02, 2011 at 02:19:56PM +0800, Huang Shijie wrote:
> Hi,
> >On Fri, Jul 29, 2011 at 11:49 AM, Huang Shijie<b32955@freescale.com> wrote:
> >>于 2011年07月29日 15:40, Koen Beel 写道:
> >>>Hi,
> >>>
> >>>On Fri, Jul 29, 2011 at 9:20 AM, Lothar Waßmann<LW@karo-electronics.de>
> >>> wrote:
> >>>>Hi,
> >>>>
> >>>>Koen Beel writes:
> >>>>>Hi,
> >>>>>
> >>>>>I have test on mx23evk board. Still see the same issues.
> >>>>>
> >>>>>On Wed, Jul 27, 2011 at 3:53 AM, Huang Shijie<b32955@freescale.com>
> >>>>> wrote:
> >>>>>>Hi,
> >>>>>>
> >>>>>>Thanks for your test.
> >>>>>>
> >>>>>>>Hi,
> >>>>>>>
> >>>>>>>It's not really working for me.
> >>>>>>>I've applied all gpmi-nand driver patches and the dma driver patches.
> >>>>>>>
> >>>>>>>I have added following kernel parameters:
> >>>>>>>mtdparts=gpmi-nand:20m(boot),-(user) ubi.mtd=1 root=ubi0:rootfs0
> >>>>>>>rootfstype=ubifs gpmi_debug_init
> >>>>>>>
> >>>>>>>During boot I get already get DMA timeout:
> >>>>>>>[ 2.560000] [ start_dma_without_bch_irq : 392 ] DMA timeout, last
> >>>>>>>DMA
> >>>>>>>:1
> >>>>>>>[ 3.560000] [ start_dma_with_bch_irq : 427 ] bch timeout!!!
> >>>>>>>...
> >>>>>>>(see log file in attach line 89)
> >>>>>I still see this DMA timeout when booting.
> >>>>>What kernel parameters do you use? I still use same as above.
> >>>>>
> >>>>Do you have an SD card in the system? I'm getting the same error when
> >>>>accessing an SD card. Without SD card I can use the flash without any
> >>>>errors.
> >>>No SD card in the system. At least not on my mx23evk board.
> >>>My real target hardware has a SDIO wifi chip.
> >>Does it conflict with the GPMI?
> >Well I don't know if it conflicts. From what Lothar says I assume
> >there might be a conflict between gpmi and sdio.
> Yes, the conflict between gpmi and other module(such as SD in MX6Q)
> is THE prime reason
> which caused the DMA timeout.
>
> I am debuging the IMX6Q now, and meet the same problem.
>
I do not follow on this. SD on i.mx6q does not use apbh-dma at all.
How will it conflict with gpmi regarding to dma timeout?
--
Regards,
Shawn
WARNING: multiple messages have this Message-ID (diff)
From: shawn.guo@freescale.com (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 0/3] add the GPMI controller driver for IMX23/IMX28
Date: Tue, 2 Aug 2011 15:16:08 +0800 [thread overview]
Message-ID: <20110802071607.GA17297@freescale.com> (raw)
In-Reply-To: <4E37970C.4070903@freescale.com>
On Tue, Aug 02, 2011 at 02:19:56PM +0800, Huang Shijie wrote:
> Hi,
> >On Fri, Jul 29, 2011 at 11:49 AM, Huang Shijie<b32955@freescale.com> wrote:
> >>? 2011?07?29? 15:40, Koen Beel ??:
> >>>Hi,
> >>>
> >>>On Fri, Jul 29, 2011 at 9:20 AM, Lothar Wa?mann<LW@karo-electronics.de>
> >>> wrote:
> >>>>Hi,
> >>>>
> >>>>Koen Beel writes:
> >>>>>Hi,
> >>>>>
> >>>>>I have test on mx23evk board. Still see the same issues.
> >>>>>
> >>>>>On Wed, Jul 27, 2011 at 3:53 AM, Huang Shijie<b32955@freescale.com>
> >>>>> wrote:
> >>>>>>Hi,
> >>>>>>
> >>>>>>Thanks for your test.
> >>>>>>
> >>>>>>>Hi,
> >>>>>>>
> >>>>>>>It's not really working for me.
> >>>>>>>I've applied all gpmi-nand driver patches and the dma driver patches.
> >>>>>>>
> >>>>>>>I have added following kernel parameters:
> >>>>>>>mtdparts=gpmi-nand:20m(boot),-(user) ubi.mtd=1 root=ubi0:rootfs0
> >>>>>>>rootfstype=ubifs gpmi_debug_init
> >>>>>>>
> >>>>>>>During boot I get already get DMA timeout:
> >>>>>>>[ 2.560000] [ start_dma_without_bch_irq : 392 ] DMA timeout, last
> >>>>>>>DMA
> >>>>>>>:1
> >>>>>>>[ 3.560000] [ start_dma_with_bch_irq : 427 ] bch timeout!!!
> >>>>>>>...
> >>>>>>>(see log file in attach line 89)
> >>>>>I still see this DMA timeout when booting.
> >>>>>What kernel parameters do you use? I still use same as above.
> >>>>>
> >>>>Do you have an SD card in the system? I'm getting the same error when
> >>>>accessing an SD card. Without SD card I can use the flash without any
> >>>>errors.
> >>>No SD card in the system. At least not on my mx23evk board.
> >>>My real target hardware has a SDIO wifi chip.
> >>Does it conflict with the GPMI?
> >Well I don't know if it conflicts. From what Lothar says I assume
> >there might be a conflict between gpmi and sdio.
> Yes, the conflict between gpmi and other module(such as SD in MX6Q)
> is THE prime reason
> which caused the DMA timeout.
>
> I am debuging the IMX6Q now, and meet the same problem.
>
I do not follow on this. SD on i.mx6q does not use apbh-dma at all.
How will it conflict with gpmi regarding to dma timeout?
--
Regards,
Shawn
next prev parent reply other threads:[~2011-08-02 7:16 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-21 6:47 [PATCH v8 0/3] add the GPMI controller driver for IMX23/IMX28 Huang Shijie
2011-07-21 6:47 ` Huang Shijie
2011-07-21 6:47 ` [PATCH v8 1/3] MTD : add the common code for GPMI-NAND controller driver Huang Shijie
2011-07-21 6:47 ` Huang Shijie
2011-07-21 6:47 ` [PATCH v8 2/3] MTD : add helper functions library and header files for GPMI NAND driver Huang Shijie
2011-07-21 6:47 ` Huang Shijie
2011-07-21 6:47 ` [PATCH v8 3/3] MTD : add GPMI-NAND driver in the config and Makefile Huang Shijie
2011-07-21 6:47 ` Huang Shijie
2011-07-21 21:50 ` [PATCH v8 0/3] add the GPMI controller driver for IMX23/IMX28 Wolfram Sang
2011-07-21 21:50 ` Wolfram Sang
2011-07-22 3:30 ` Huang Shijie
2011-07-22 3:30 ` Huang Shijie
2011-07-22 5:57 ` Shawn Guo
2011-07-22 5:57 ` Shawn Guo
2011-07-22 8:07 ` Huang Shijie
2011-07-22 8:07 ` Huang Shijie
2011-07-26 14:29 ` Koen Beel
2011-07-26 14:29 ` Koen Beel
2011-07-27 1:53 ` Huang Shijie
2011-07-27 1:53 ` Huang Shijie
2011-07-28 9:38 ` Koen Beel
2011-07-28 9:38 ` Koen Beel
2011-07-29 7:20 ` Lothar Waßmann
2011-07-29 7:20 ` Lothar Waßmann
2011-07-29 7:40 ` Koen Beel
2011-07-29 7:40 ` Koen Beel
2011-07-29 7:49 ` Lothar Waßmann
2011-07-29 7:49 ` Lothar Waßmann
2011-07-29 9:49 ` Huang Shijie
2011-07-29 9:49 ` Huang Shijie
2011-07-29 11:48 ` Koen Beel
2011-07-29 11:48 ` Koen Beel
2011-08-02 6:19 ` Huang Shijie
2011-08-02 6:19 ` Huang Shijie
2011-08-02 7:16 ` Shawn Guo [this message]
2011-08-02 7:16 ` Shawn Guo
2011-08-02 8:11 ` Shawn Guo
2011-08-02 8:11 ` Shawn Guo
2011-08-02 8:12 ` Shawn Guo
2011-08-02 8:12 ` Shawn Guo
2011-08-02 8:22 ` Huang Shijie
2011-08-02 8:22 ` Huang Shijie
2011-07-29 12:41 ` Lothar Waßmann
2011-07-29 12:41 ` Lothar Waßmann
2011-07-29 15:00 ` Koen Beel
2011-07-29 15:00 ` Koen Beel
2011-07-31 13:51 ` Marek Vasut
2011-07-31 13:51 ` Marek Vasut
2011-08-01 15:14 ` Koen Beel
2011-08-01 15:14 ` Koen Beel
2011-08-02 6:37 ` Huang Shijie
2011-08-02 6:37 ` Huang Shijie
2011-08-02 7:33 ` Koen Beel
2011-08-02 7:33 ` Koen Beel
2011-08-02 7:44 ` Huang Shijie
2011-08-02 7:44 ` Huang Shijie
2011-08-02 8:55 ` Koen Beel
2011-08-02 8:55 ` Koen Beel
2011-08-02 8:49 ` Huang Shijie
2011-08-02 8:49 ` Huang Shijie
2011-08-02 9:29 ` Koen Beel
2011-08-02 9:29 ` Koen Beel
2011-08-02 10:37 ` Huang Shijie
2011-08-02 10:37 ` Huang Shijie
2011-08-02 12:32 ` Koen Beel
2011-08-02 12:32 ` Koen Beel
2011-08-02 6:21 ` Huang Shijie
2011-08-02 6:21 ` Huang Shijie
2011-08-03 10:37 ` Wolfram Sang
2011-08-03 10:37 ` Wolfram Sang
2011-08-03 12:00 ` Koen Beel
2011-08-03 12:00 ` Koen Beel
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