Re: Sandisk extreme 32GB and 16GB dont initialize in XO-1.75

2012-10-18 Thread John Watlington
Based on that error message, my guess is that those Sandisk cards are the first to support +1.8V operation. The kernel is detecting this, but getting confused as it doesn't know how to turn on +1.8V power to the SD (it isn't supported by that motherboard). On XO-1.5, we supported operating SD

Re: Sandisk extreme 32GB and 16GB dont initialize in XO-1.75

2012-10-18 Thread Chris Ball
Hi, On Thu, Oct 18 2012, John Watlington wrote: The kernel should recognize this limitation, and not try to negotiate for lower voltages. This sounds like a bug in build 21, please file a ticket. I just pushed a change to arm-3.0-wip that might fix this -- George, please can you test?

Re: Sandisk extreme 32GB and 16GB dont initialize in XO-1.75

2012-10-18 Thread George Hunt
All my XO-1.75's are prepped for the SF summit this weekend. I can do it after Sunday. George On Thu, Oct 18, 2012 at 3:22 PM, Chris Ball c...@laptop.org wrote: Hi, On Thu, Oct 18 2012, John Watlington wrote: The kernel should recognize this limitation, and not try to negotiate for lower

Sandisk extreme 32GB and 16GB dont initialize in XO-1.75

2012-10-07 Thread George Hunt
Hi all, I've been working on a XO-1.75 as XS project. The smallest form factor XS would use an SD card for School Server storage. So I purchased fast, large SD cards from Amazon. These cards work in my mac, and they initialize, and appear to work on the XO-1.5 running build 860. The XO-1.75