Hi. I have problem with transmission between ARM and MMC/SD on my board. I tested with 16MB SD from Panasonic and 256MB Kingston MMC. Here is my board
mmc0: host does not support reading read-only switch. Assuming write-enable. mmcblk0: mmc0:5a2b S016B 14560KiB mmcblk0:mmc0: starting CMD18 arg 00000000 flags 00000035
but when I'm trying to do "cat some.img > /dev/mmc" it hangs. I use one wire interface. The last message is "Jan 1 00:11:33 (none) user.debug kernel: Handling the transmit"
Here are some extra debugs from kernel (doing cat some.img.........): What should I do ? Add more pullups to the other pins ? Other suggestions ?