Openmoko Bug #2217: Noise screen of death: Freerunner looses SDIO connection

[Openmoko Public Trac]

#2217: Noise screen of death: Freerunner looses SDIO connection
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 Reporter:  xbaldauf         |          Owner:  openmoko-kernel
     Type:  defect           |         Status:  new            
 Priority:  normal           |      Milestone:                 
Component:  System Software  |        Version:                 
 Severity:  major            |       Keywords:                 
 Haspatch:  0                |      Blockedby:                 
Estimated:                   |    Patchreview:                 
 Blocking:                   |   Reproducible:                 
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Comment(by xbaldauf):

 Well... running the kernel with parameter "glamo_mci.sd_max_clk=1000000"
 makes booting really painfully slow. But additionally, this does not fix
 the problem.

 After entering the PIN (e.g. connecting to GSM), I get these error
 messages.

 [  939.205000] glamo-mci glamo-mci.0: Error after cmd: 0x8302
 [  939.205000] mmcblk0: retrying using single block read
 [  939.220000] glamo-mci glamo-mci.0: Error after cmd: 0x120
 [  939.220000] mmcblk0: error -110 sending read/write command, response
 0x0, card status 0x40400b00
 [  939.230000] end_request: I/O error, dev mmcblk0, sector 11188690
 [  939.240000] glamo-mci glamo-mci.0: Error after cmd: 0x120
 [  939.240000] mmcblk0: error -110 sending read/write command, response
 0x0, card status 0x400b00
 [  939.260000] end_request: I/O error, dev mmcblk0, sector 11188691
 [  939.260000] glamo-mci glamo-mci.0: Error after cmd: 0x120
 [  939.275000] mmcblk0: error -110 sending read/write command, response
 0x0, card status 0x400b00
 [  939.295000] end_request: I/O error, dev mmcblk0, sector 11188692
 [  939.295000] glamo-mci glamo-mci.0: Error after cmd: 0x120
 [  939.310000] mmcblk0: error -110 sending read/write command, response
 0x0, card status 0x400b00
 [  939.315000] end_request: I/O error, dev mmcblk0, sector 11188693
 [  939.330000] glamo-mci glamo-mci.0: Error after cmd: 0x120


 So the problem may indeed be GSM-related. However, your suggested fix does
 not seem to work.

 (My relevant kernel command line parameters are now
 "glamo_core.slow_memory=1 glamo3362.slow_memory=1
 glamo_mci.sd_max_clk=1000000".)

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/2217#comment:15>
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