From mboxrd@z Thu Jan 1 00:00:00 1970 From: b32955@freescale.com (Huang Shijie) Date: Tue, 9 Aug 2011 14:36:19 +0800 Subject: GPMI-NAND Status? In-Reply-To: References: <20110805135133.GA26981@pengutronix.de> <4E3F8087.6070206@freescale.com> <4E3FBC75.7010703@freescale.com> Message-ID: <4E40D563.2090202@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Koen: > Hi, > > On Mon, Aug 8, 2011 at 12:37 PM, Huang Shijie wrote: >> Hi, >>> On my target, the mxs-dma is working for sdio until the gpmi-nand >>> gives a timeout. After that the dma for sdio is *not fully* working >>> anymore. >>> >> We need more log in following aspects: >> [1] apbh-dma registers >> [2] clk registers >> [3] gpmi registers >> >> Please git-apply the patch in the attachment. >> It will print out more DMA information WHEN dma-timeout occur. > Don't get it. What exactly are you trying to dump? > This patch dumps CTRL0, CTRL1, CTRL2, DEVSEL but also some registers > of APBH channel0 which is reserved.... sorry, I intended to print out the channel 4(NAND_DEVICE0). I want to know that: When the dma timeout occurs, whether it caused by the GPMI or by the DMA itself. Please try the new patch. Best Regards Huang Shijie > Then it prints some debug info on channel 1 (ssp1) and then alle > channel 2 register except the debug register (ssp2 = not used here). > > What info do you need? > > Br, > Koen > >> Best Regards >> Huang Shijie >> > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >