Hello, I'm just working on MMC support for au1100 CPUs. I patched au1xmmc.c in order to disable DMA support (which is different from au1200 and au1100) and forcing PIO mode. Both MMC controllers of au1200 and au1100 seems similar to me... Here what I get when I insert the card: mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 mmc0: clock 0Hz busmode 1 powermode 1 cs 0 Vdd 23 width 0 mmc0: clock 450000Hz busmode 1 powermode 2 cs 0 Vdd 23 width 0 mmc0: clock 450000Hz busmode 1 powermode 2 cs 1 Vdd 23 width 0 mmc0: starting CMD0 arg 00000000 flags 00000040 mmc0: req done (CMD0): 0/0/0: 00000000 00000000 00000000 00000000 mmc0: clock 450000Hz busmode 1 powermode 2 cs 0 Vdd 23 width 0 mmc0: starting CMD55 arg 00000000 flags 00000015 mmc0: req done (CMD55): 0/0/0: 00000120 00000000 00000000 00000000 mmc0: starting CMD41 arg 00000000 flags 00000061 mmc0: req done (CMD41): 0/0/0: 00ff8000 00000000 00000000 00000000 mmc0: clock 450000Hz busmode 1 powermode 2 cs 0 Vdd 15 width 0 mmc0: clock 450000Hz busmode 1 powermode 2 cs 1 Vdd 15 width 0 mmc0: starting CMD0 arg 00000000 flags 00000040 mmc0: req done (CMD0): 0/0/0: 00000000 00000000 00000000 00000000 mmc0: clock 450000Hz busmode 1 powermode 2 cs 0 Vdd 15 width 0 mmc0: starting CMD55 arg 00000000 flags 00000015 mmc0: req done (CMD55): 0/0/0: 00000120 00000000 00000000 00000000 mmc0: starting CMD41 arg 00018000 flags 00000061 mmc0: req done (CMD41): 0/0/0: 00ff8000 00000000 00000000 00000000 mmc0: starting CMD55 arg 00000000 flags 00000015 mmc0: req done (CMD55): 0/0/0: 00000120 00000000 00000000 00000000 mmc0: starting CMD41 arg 00018000 flags 00000061 mmc0: req done (CMD41): 0/0/0: 80ff8000 00000000 00000000 00000000 mmc0: starting CMD2 arg 00000000 flags 00000067 mmc0: req done (CMD2): 0/0/0: 1d41444d 494e4953 10310001 9a005500 mmc0: starting CMD3 arg 00000000 flags 00000065 mmc0: req done (CMD3): 0/0/0: 019a0055 00000000 00000000 00000000 mmc0: host does not support reading read-only switch. assuming write-enable. mmc0: starting CMD2 arg 00000000 flags 00000067 mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000 mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000 mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000 mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000 mmc0: clock 450000Hz busmode 2 powermode 2 cs 0 Vdd 15 width 0 mmc0: starting CMD9 arg 019a0000 flags 00000007 mmc0: req done (CMD9): 1/0/0: 00000000 00000000 00000000 00000000 mmc0: req done (CMD9): 1/0/0: 00000000 00000000 00000000 00000000 mmc0: req done (CMD9): 1/0/0: 00000000 00000000 00000000 00000000 mmc0: req done (CMD9): 1/0/0: 00000000 00000000 00000000 00000000 mmc0: selected 24.000MHz transfer rate mmc0: clock 24000000Hz busmode 2 powermode 2 cs 0 Vdd 15 width 0 mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 It seems that the driver doesn't recognize the card. Any suggestions? Do you think that the controller is talking with the card? Thanks, Rodolfo -- GNU/Linux Solutions e-mail: giometti@xxxxxxxxxxxx Linux Device Driver giometti@xxxxxxxxx Embedded Systems giometti@xxxxxxxx UNIX programming phone: +39 349 2432127
