FS#646 - MMC/SD - mount/read/write not possible -> kernel errors #5864
Comments
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camel: see also: |
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camel: can someone change the subject ? (as i tested it now on ZBT-WE826 (mt7620), where it is working on newest LEDE trunk) thx cu Erwin |
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mkresin: Please test the latest snapshot. Some sd/mmc card related fixes were committed. |
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sidepipe: I believe this may be down to the mmc driver setting the max clock to 50000000 - changing it to 48000000 as used on other SoCs seems to work. It's strange, because all versions of the driver I've tried seem to have the same issue, but changing the clock definitely fixed this for me. |
camel:
Supply the following if possible:
reproduce:
MMC card found on boot:
root@router:~# logread|grep -i mmc
Mon Mar 20 12:54:57 2017 kern.info kernel: [ 6.680000] mmc0: new high speed SDHC card at address 0001
Mon Mar 20 12:54:57 2017 kern.info kernel: [ 6.690000] mmcblk0: mmc0:0001 00000 29.8 GiB
but if i try to mount/read/write to it ... still not possible and kernel errors ....
root@router:~# fdisk -lDisk /dev/mmcblk0: 29.8 GiB, 32010928128 bytes, 62521344 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
root@router:~# fdisk /dev/mmcblk0
Welcome to fdisk (util-linux 2.28).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0xf924301d.
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-62521343, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-62521343, default 62521343):
Created a new partition 1 of type 'Linux' and of size 29.8 GiB.
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
##################
logcat ....
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.680000] msdc-1 -> cmd<13> resp<0xe00> <- msdc_check _busy() : L<2065> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.690000] msdc-1 -> cmd<13> resp<0x900> <- msdc_check _busy() : L<2065> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.700000] msdc-1 -> TUNE_BWRITE DSPL<0> DATWRDL Y<-1> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.710000] msdc-1 -> TUNE_BWRITE DSPL<1> DATWRDL Y<27> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.730000] msdc-1 -> TUNE_BWRITE DSPL<0> DATWRDL Y<27> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.740000] msdc-1 -> TUNE_BWRITE DSPL<1> DATWRDL Y<28> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.750000] msdc-1 -> TUNE_BWRITE DSPL<0> DATWRDL Y<28> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.770000] msdc-1 -> TUNE_BWRITE DSPL<1> DATWRDL Y<29> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.780000] msdc-1 -> TUNE_BWRITE DSPL<0> DATWRDL Y<29> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.790000] msdc-1 -> TUNE_BWRITE DSPL<1> DATWRDL Y<30> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.810000] msdc-1 -> TUNE_BWRITE DSPL<0> DATWRDL Y<30> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.820000] msdc-1 -> TUNE_BWRITE DSPL<1> DATWRDL Y<31> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.830000] msdc-1 -> TUNE_BWRITE DSPL<0> DATWRDL Y<31> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.840000] msdc-1 -> TUNE_BWRITE DSPL<1> DATWRDL Y<0> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.860000] msdc-1 -> TUNE_BWRITE DSPL<0> DATWRDL Y<0> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.870000] msdc-1 -> TUNE_BWRITE DSPL<1> DATWRDL Y<1> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 393.880000] msdc-1 -> TUNE_BWRITE DSPL<0> DATWRDL Y<1> MSDC_DAT_RDDLY0<0x1e101010> <- msdc_tune_bwrite() : L<1996> PID<mmcqd/0><0x1a1>
Mon Mar 20 15:58:53 2017 kern.err kernel: [ 394.160000] msdc-1 -> TUNE_BREAD dcrc<0x0> DATRDD LY0/1<0x1e101010><0x0> dsmpl<0x1> <- msdc_tune_bread() : L<1871> PID<mmcqd/0><0x1a1>
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