Darius Augulis wrote: > > On 07/08/2010 10:23 AM, Marek Szyprowski wrote: > > Hello, > > > > On Tuesday, July 06, 2010 7:03 PM Darius Augulis wrote: > > > >> On 06/28/2010 09:01 AM, Marek Szyprowski wrote: > >>> Hello, > >>> > >>> On Friday, June 25, 2010 12:56 PM Darius Augulis wrote: > >>> > >>>> On 06/22/2010 04:16 PM, Yauhen Kharuzhy wrote: > >>>>> This patch series fixes SDHCI on S3C2416. I got SD card working with > >> this > >>>> patches > >>>>> and with patches for GPIO card detection support by Marek Szyprowski. > >>>>> > >>>> > >>>> Unfortunately I did not get SD card working with these patches. I'm > >>>> using custom board, not SMDK2416, but SD slot connection and schematics > >>>> are the same like in SMDK2416. I've tried to debug a bit this problem > >>>> and this is what I got: kernel do detection of card insert/remove, > >>>> driver prints messages: > >>>> > >>>> s3c-sdhci s3c-sdhci.1: card inserted. > >>>> s3c-sdhci s3c-sdhci.1: card removed. > >>>> > >>>> Then I put some printk in s3c-sdhci driver and MMC core and found that > >>>> mmc_rescan() is called only once at startup and no more when > >>>> inserting/removing SD card. Also mmc_rescan() stops at that point where > >>>> mmc_power_up() is called and does not return. And mmc_power_up() stops > >>>> where mmc_delay(10) is called and does not return too. > >>>> Every time when inserting/removing SD card only functions > >>>> sdhci_tasklet_card() and mmc_detect_change() are called, and nothing > >>>> happens. Kernel doesn't detect the card inserted. > >>>> Maybe this info could help to debug where the problem is - in my custom > >>>> board or in your patches? > >>> > >>> Have you tried with polled card detection method (SDHCI_CD_NONE)? If it > >>> doesn't work I suspect something with the hardware. Checking with mmc > >> debug > >>> enabled might also help figuring this issue out. > >> > >> yes, I've tried that, but didn't get sd card working. I got schematics > >> from China manufacturer, SD card connection is the same like in > >> smdk2416. with mmc debug enabled I found that SD card is detected when > >> inserted or removed, but after detection card initialisation is not > >> performed. > > > > Does it work without my patches or with other Linux kernel? You can try to > > check the custom Linux 2.6.29 from > > git://git.kernel.org/pub/scm/linux/kernel/git/kki_ap/linux-2.6-samsung.git > > I did try with and without your patches. First, I applied only s3c2416 > realated patches from Yauhen, then I've added your patches, but nothing > changed. > > > > > I would like to know whether my patches cause the problem or there is some > > kind of hardware issue with your board. > > Hi Darius, Was there any progress about above issue? Thanks. Best regards, Kgene. -- Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer, SW Solution Development Team, Samsung Electronics Co., Ltd. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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