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. Best regards -- Marek Szyprowski Samsung Poland R&D Center -- 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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