Problems with MMC/SDIO on S3C2412

jose.goncalves at inov.pt jose.goncalves at inov.pt
Tue Feb 9 19:04:39 EST 2010 

Hi,

I'm still having problems in setting up my SDIO Wi-Fi card (Silex 
SX-SDWAG) on a S3C2412.
I'm now using a 2.6.29 kernel. When I load the s3mci module everything 
seems OK, as the card is detected. When I unload it, the card is 
successfully removed. The problem is when I try to load the module 
again. In this second time, the card is not detected! I attach a syslog 
of this situation with CONFIG_MMC_DEBUG. This problem is serious for me 
because after a soft reset to my board, the Wi-Fi card is no more 
detected. I need to power down/up the board for the Wi-Fi card to be 
detected again.
Any ideas why this happens?

Regards,
José Gonçalves

-------------- next part --------------
Feb  9 19:48:57 10 user.notice root: #### Loading first time...
Feb  9 19:49:05 10 user.warn kernel: mapped channel 0 to 0
Feb  9 19:49:05 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: probe: mode:2440 mapped mci_base:c1e00000 irq:83 irq_cd:62 dma:0.
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: powered down.
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: initialisation done.
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 0Hz busmode 1 powermode 1 cs 0 Vdd 21 width 0 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 0kHz (requested: 0kHz).
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 195312Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 196kHz (requested: 195kHz).
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 195312Hz busmode 1 powermode 2 cs 1 Vdd 21 width 0 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 196kHz (requested: 195kHz).
Feb  9 19:49:05 10 user.debug kernel: mmc0: starting CMD0 arg 00000000 flags 000000c0
Feb  9 19:49:05 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMD[OK] #1 op:0 arg:0x00000000 flags:0x08c0 retries:0 R0:0x00000000
Feb  9 19:49:05 10 user.debug kernel: mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 195312Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 196kHz (requested: 195kHz).
Feb  9 19:49:05 10 user.debug kernel: mmc0: starting CMD8 arg 000001aa flags 000002f5
Feb  9 19:49:05 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:05 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #2 op:8 arg:0x000001aa flags:0x082f5 retries:0 Status:nothing to complete
Feb  9 19:49:05 10 user.debug kernel: mmc0: req done (CMD8): -110: 00000000 00000000 00000000 00000000
Feb  9 19:49:05 10 user.debug kernel: mmc0: starting CMD5 arg 00000000 flags 000002e1
Feb  9 19:49:05 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMD[OK] #3 op:5 arg:0x00000000 flags:0x082e1 retries:3 R0:0x10fe0000
Feb  9 19:49:05 10 user.debug kernel: mmc0: req done (CMD5): 0: 10fe0000 ff000000 00000000 00000000
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 195312Hz busmode 1 powermode 2 cs 0 Vdd 20 width 0 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 196kHz (requested: 195kHz).
Feb  9 19:49:05 10 user.debug kernel: mmc0: starting CMD5 arg 00300000 flags 000002e1
Feb  9 19:49:05 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMD[OK] #4 op:5 arg:0x00300000 flags:0x082e1 retries:3 R0:0x10fe0000
Feb  9 19:49:05 10 user.debug kernel: mmc0: req done (CMD5): 0: 10fe0000 ff000000 00000000 00000000
Feb  9 19:49:05 10 user.debug kernel: mmc0: starting CMD5 arg 00300000 flags 000002e1
Feb  9 19:49:05 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMD[OK] #5 op:5 arg:0x00300000 flags:0x082e1 retries:3 R0:0x90fe0000
Feb  9 19:49:05 10 user.debug kernel: mmc0: req done (CMD5): 0: 90fe0000 ff000000 00000000 00000000
Feb  9 19:49:05 10 user.debug kernel: mmc0: starting CMD3 arg 00000000 flags 00000075
Feb  9 19:49:05 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMD[OK] #6 op:3 arg:0x00000000 flags:0x0875 retries:3 R0:0x00014000
Feb  9 19:49:05 10 user.debug kernel: mmc0: req done (CMD3): 0: 00014000 31000000 00000000 00000000
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 195312Hz busmode 2 powermode 2 cs 0 Vdd 20 width 0 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 196kHz (requested: 195kHz).
Feb  9 19:49:05 10 user.debug kernel: mmc0: starting CMD7 arg 00010000 flags 00000015
Feb  9 19:49:05 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMD[OK] #7 op:7 arg:0x00010000 flags:0x0815 retries:3 R0:0x00001e00
Feb  9 19:49:05 10 user.debug kernel: mmc0: req done (CMD7): 0: 00001e00 a1000000 00000000 00000000
Feb  9 19:49:05 10 user.debug kernel: mmc0: queuing CIS tuple 0x01 length 3
Feb  9 19:49:05 10 user.debug kernel: mmc0: queuing CIS tuple 0x1a length 5
Feb  9 19:49:05 10 user.debug kernel: mmc0: queuing CIS tuple 0x1b length 8
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 25000000Hz busmode 2 powermode 2 cs 0 Vdd 20 width 0 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 25000kHz (requested: 25000kHz).
Feb  9 19:49:05 10 user.debug kernel: mmc0: clock 25000000Hz busmode 2 powermode 2 cs 0 Vdd 20 width 2 timing 0
Feb  9 19:49:05 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 25000kHz (requested: 25000kHz).
Feb  9 19:49:05 10 user.debug kernel: mmc0: queuing CIS tuple 0x80 length 1
Feb  9 19:49:05 10 user.debug kernel: mmc0: queuing CIS tuple 0x81 length 1
Feb  9 19:49:05 10 user.debug kernel: mmc0: queuing CIS tuple 0x82 length 1
Feb  9 19:49:05 10 user.info kernel: mmc0: new SDIO card at address 0001
Feb  9 19:49:16 10 user.notice root: #### Unloading...
Feb  9 19:49:20 10 user.info kernel: mmc0: card 0001 removed
Feb  9 19:49:20 10 user.debug kernel: mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
Feb  9 19:49:20 10 user.info kernel: s3c2412-sdi s3c2412-sdi: powered down.
Feb  9 19:49:20 10 user.debug kernel: mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
Feb  9 19:49:20 10 user.info kernel: s3c2412-sdi s3c2412-sdi: powered down.
Feb  9 19:49:31 10 user.notice root: #### Loading second time...
Feb  9 19:49:34 10 user.warn kernel: mapped channel 0 to 0
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: probe: mode:2440 mapped mci_base:c2000000 irq:83 irq_cd:62 dma:0.
Feb  9 19:49:34 10 user.debug kernel:  clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
Feb  9 19:49:34 10 user.info kernel: s3c2412-sdi s3c2412-sdi: powered down.
Feb  9 19:49:34 10 user.info kernel: s3c2412-sdi s3c2412-sdi: initialisation done.
Feb  9 19:49:34 10 user.debug kernel: mmc0: clock 0Hz busmode 1 powermode 1 cs 0 Vdd 21 width 0 timing 0
Feb  9 19:49:34 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 0kHz (requested: 0kHz).
Feb  9 19:49:34 10 user.debug kernel: mmc0: clock 195312Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0
Feb  9 19:49:34 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 196kHz (requested: 195kHz).
Feb  9 19:49:34 10 user.debug kernel: mmc0: clock 195312Hz busmode 1 powermode 2 cs 1 Vdd 21 width 0 timing 0
Feb  9 19:49:34 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 196kHz (requested: 195kHz).
Feb  9 19:49:34 10 user.debug kernel: mmc0: starting CMD0 arg 00000000 flags 000000c0
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMD[OK] #1 op:0 arg:0x00000000 flags:0x08c0 retries:0 R0:0x00000000
Feb  9 19:49:34 10 user.debug kernel: mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
Feb  9 19:49:34 10 user.debug kernel: mmc0: clock 195312Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0
Feb  9 19:49:34 10 user.info kernel: s3c2412-sdi s3c2412-sdi: running at 196kHz (requested: 195kHz).
Feb  9 19:49:34 10 user.debug kernel: mmc0: starting CMD8 arg 000001aa flags 000002f5
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #2 op:8 arg:0x000001aa flags:0x082f5 retries:0 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req done (CMD8): -110: 00000000 00000000 00000000 00000000
Feb  9 19:49:34 10 user.debug kernel: starting CMD5 arg 00000000 flags 000002e1
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #3 op:5 arg:0x00000000 flags:0x082e1 retries:3 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req failed (CMD5): -110, retrying...
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #4 op:5 arg:0x00000000 flags:0x082e1 retries:2 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req failed (CMD5): -110, retrying...
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #5 op:5 arg:0x00000000 flags:0x082e1 retries:1 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req failed (CMD5): -110, retrying...
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #6 op:5 arg:0x00000000 flags:0x082e1 retries:0 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req done (CMD5): -110: 00000000 00000000 00000000 00000000
Feb  9 19:49:34 10 user.debug kernel: mmc0: starting CMD55 arg 00000000 flags 000000f5
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #7 op:55 arg:0x00000000 flags:0x08f5 retries:0 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
Feb  9 19:49:34 10 user.debug kernel: mmc0: starting CMD55 arg 00000000 flags 000000f5
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #8 op:55 arg:0x00000000 flags:0x08f5 retries:0 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
Feb  9 19:49:34 10 user.debug kernel: mmc0: starting CMD55 arg 00000000 flags 000000f5
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #9 op:55 arg:0x00000000 flags:0x08f5 retries:0 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
Feb  9 19:49:34 10 user.debug kernel: mmc0: starting CMD55 arg 00000000 flags 000000f5
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #10 op:55 arg:0x00000000 flags:0x08f5 retries:0 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req done (CMD55): -110: 00000000 00000000 00000000 00000000
Feb  9 19:49:34 10 user.debug kernel: mmc0: starting CMD1 arg 00000000 flags 000000e1
Feb  9 19:49:34 10 user.debug kernel: s3c2412-sdi s3c2412-sdi: CMDSTAT: error CMDTIMEOUT
Feb  9 19:49:34 10 user.err kernel: s3c2412-sdi s3c2412-sdi: CMD[ERR -110] #11 op:1 arg:0x00000000 flags:0x08e1 retries:0 Status:nothing to complete
Feb  9 19:49:34 10 user.debug kernel: mmc0: req done (CMD1): -110: 00000000 00000000 00000000 00000000
Feb  9 19:49:34 10 user.debug kernel: mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0 timing 0
Feb  9 19:49:34 10 user.info kernel: s3c2412-sdi s3c2412-sdi: powered down.

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