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?
Darius.
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