System Software Meeting Minutes, 2006-10-17

[Tom Sylla]

On 10/18/06, Andres Salomon <dilinger at debian.org> wrote:
> As dwmw2 has said, the cafe nand doesn't use an IRQ, and the SD stuff
> appears to blow up in the same manner as before (sdhci: Invalid iomem
> size. Aborting.).

Usually, this is because the hardware is incorrect. A single slot
controller should have an I/O size of 256 bytes. The driver checks it:

http://dev.laptop.org/git.do?p=olpc-2.6;a=blob;h=9a7d39b7cdbf43ae3b24df6eed03b8e4c511148b;hb=303e9a7ab9639d0c1359d330412ec7299fd35159;f=drivers/mmc/sdhci.c#l1164

and gets hissy if it is wrong.

(note that the "check" is really a bug too, there is no way the sdhci
driver will work properly on a multi-card SDHCI spec-compliant
controller)