Hello again, On 23.06.2015 14:58, Norman Feske wrote: >> [init -> sd_card_drv] \0x1b[33mcapacity: 1107296256 MiB\0x1b[0m > > This capacity value is obviously wrong. It is certainly a miscalculation > in the '_sd_card_device_size' function: > > https://github.com/genodelabs/genode/blob/master/repos/os/src/drivers/sd_card/sd_card.h#L411 > > I definitely need to investigate the calculation with a larger test set > of SD cards. That said, the wrong capacity is not the actual reason for > the failing test.
I found the problem. The issue lies in the strange way the SDHCI controller returns 136-bit responses (for the CSD and CID registers). The following patch applies the needed quirk to our driver: https://github.com/genodelabs/genode/commit/15cd7064fb841536af6b651c24fa24de55c6e2ea With the patch, the driver correctly detects high-capacity cards and determines their capacity. Unfortunately, I cannot test the detection of standard-capacity cards because I don't have one at hand. Cheers Norman -- Dr.-Ing. Norman Feske Genode Labs http://www.genode-labs.com · http://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth ------------------------------------------------------------------------------ Monitor 25 network devices or servers for free with OpManager! OpManager is web-based network management software that monitors network devices and physical & virtual servers, alerts via email & sms for fault. Monitor 25 devices for free with no restriction. Download now http://ad.doubleclick.net/ddm/clk/292181274;119417398;o _______________________________________________ genode-main mailing list genode-main@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/genode-main
