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eMMC write error in IMX6 Sabre AI board

DISCUSSION vadivelan mani 3 participants 6 messages Nov 7, 2014 – Nov 26, 2014 MMC, SD and SDIO

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vadivelan mani

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#0 lore raw

Dear all,
I'm facing this unique problem during emmc write operation. I'm using a
Toshiba emmc device on Sabre AI board and linux kernel version 3.0.35.

The write operation is successful when i disable multi-block read/write. But when multi block read/write is enabled, the writes fail for data of size above 12KBytes. Please find the logs below for your reference. Any data write upto 12KB, there is no problem. The error message is a data crc error which i'm unable to figure why it is occuring.

===========================================================================
Data size <= 12KB - SUCCESS
-------------------
===========================================================================
root@freescale ~$ dd if=/file of=/dev/mmcblk0 bs=1024 count=12

mmc0: starting CMD18 arg 00000000 flags 000000b5

mmc0: blksz 512 blocks 8 flags 00000200 tsac 50 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 8
Block size 29184
Block size 7
=========> transfer_ mode 0x33
=============> flags 0x3a, cmd 18
intmask 0xa

Address after failure 0x74f80000

mmc0: starting CMD18 arg 00000008 flags 000000b5

mmc0: blksz 512 blocks 8 flags 00000200 tsac 50 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 8
Block size 29184
Block size 7
=========> transfer_ mode 0x33
=============> flags 0x3a, cmd 18
intmask 0xa

Address after failure 0x74f80000

mmc0: starting CMD18 arg 00000010 flags 000000b5

mmc0: blksz 512 blocks 8 flags 00000200 tsac 50 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 8
Block size 29184
Block size 7
=========> transfer_ mode 0x33
=============> flags 0x3a, cmd 18
intmask 0xa

Address after failure 0x74f80000

mmc0: starting CMD25 arg 00000000 flags 000000b5

mmc0: blksz 512 blocks 24 flags 00000100 tsac 800 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 24
Block size 29184
Block size 7
=========> transfer_ mode 0x23
=============> flags 0x3a, cmd 25
intmask 0x8

Address after failure 0x74f80000
intmask 0x2
Address after failure 0x74f80000

mmc0: starting CMD13 arg 00010000 flags 00000195

===========host flags 0x5
--------------- ACMD23
=============> flags 0x1a, cmd 13
12+0 records in
12+0 records out
12288 bytes (12.0KB) copied, 0.178464 seconds, 67.2KB/s

============================================================================
Data size > 12KB - FAIL
-----------------
============================================================================

root@freescale ~$ dd if=/file of=/dev/mmcblk0 bs=1024 count=15

mmc0: starting CMD18 arg 00000000 flags 000000b5

mmc0: blksz 512 blocks 8 flags 00000200 tsac 50 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 8
Block size 29184
Block size 7
=========> transfer_ mode 0x33
=============> flags 0x3a, cmd 18
intmask 0xa

Address after failure 0x74f00000

mmc0: starting CMD18 arg 00000008 flags 000000b5

mmc0: blksz 512 blocks 8 flags 00000200 tsac 50 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 8
Block size 29184
Block size 7
=========> transfer_ mode 0x33
=============> flags 0x3a, cmd 18
intmask 0xa

Address after failure 0x74f00000

mmc0: starting CMD18 arg 00000010 flags 000000b5

mmc0: blksz 512 blocks 8 flags 00000200 tsac 50 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 8
Block size 29184
Block size 7
=========> transfer_ mode 0x33
=============> flags 0x3a, cmd 18
intmask 0xa

Address after failure 0x74f00000

mmc0: starting CMD18 arg 00000018 flags 000000b5

mmc0: blksz 512 blocks 8 flags 00000200 tsac 50 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 8
Block size 29184
Block size 7
=========> transfer_ mode 0x33
=============> flags 0x3a, cmd 18
intmask 0xa

Address after failure 0x74f00000

mmc0: starting CMD25 arg 00000000 flags 000000b5

mmc0: blksz 512 blocks 32 flags 00000100 tsac 800 ms nsac 0

mmc0: CMD12 arg 00000000 flags 0000049d

===========host flags 0x5
=============> flags 0x1a, cmd 23
--------------- Not ACMD23
data Block size 0 512
Block count 32
Block size 29184
Block size 7
=========> transfer_ mode 0x23
=============> flags 0x3a, cmd 25
intmask 0x200002
============> need to send cmd12
=============> flags 0x1b, cmd 12
Address after failure 0x0

mmc0: starting CMD13 arg 00010000 flags 00000195

===========host flags 0x5
--------------- ACMD23
=============> flags 0x1a, cmd 13
mmcblk0: error -84 transferring data, sector 0, nr 32, cmd response 0x900, card status 0xc00
end_request: I/O error, dev mmcblk0, sector 0
Buffer I/O error on device mmcblk0, logical block 0
lost page write due to I/O error on mmcblk0
end_request: I/O error, dev mmcblk0, sector 8
Buffer I/O error on device mmcblk0, logical block 1
lost page write due to I/O error on mmcblk0
end_request: I/O error, dev mmcblk0, sector 16
Buffer I/O error on device mmcblk0, logical block 2
lost page write due to I/O error on mmcblk0
end_request: I/O error, dev mmcblk0, sector 24
Buffer I/O error on device mmcblk0, logical block 3
lost page write due to I/O error on mmcblk0
15+0 records in
15+0 records out
15360 bytes (15.0KB) copied, 0.277967 seconds, 54.0KB/s

Please provide your valuable inputs for the same.

#1 lore raw
Quoted 3 lines · vadivelan mani

Dear all,
I'm facing this unique problem during emmc write operation. I'm using a
Toshiba emmc device on Sabre AI board and linux kernel version 3.0.35.

Please try 3.18-rc3.

author
#2 lore raw

Hi,
Thanks for your suggestion. But my kernel is fixed to version 3.0.35 and hence unable to use a different kernel. Please tell what is the problem in this kernel version if you already know. That would be very helpful.

NOTE: There may be some copyright messages below my mail which gets added automatically. Kindly ignore those messages.

Thanks and regards,
Vadivelan.

-----Original Message-----
From: Fabio Estevam [mailto:[email protected]]
Sent: 07 November 2014 17:42
To: Vadivelan M
Cc: [email protected]
Subject: Re: eMMC write error in IMX6 Sabre AI board

Quoted 3 lines · vadivelan mani

Dear all,
I'm facing this unique problem during emmc write operation. I'm
using a Toshiba emmc device on Sabre AI board and linux kernel version 3.0.35.

Please try 3.18-rc3.
The information contained in this e-mail message and in any attachments/annexure/appendices is confidential to the recipient and may contain privileged information. If you are not the intended recipient, please notify the sender and delete the message along with any attachments/annexure/appendices. You should not disclose, copy or otherwise use the information contained in the message or any annexure. Any views expressed in this e-mail are those of the individual sender except where the sender specifically states them to be the views of Toshiba Software India Pvt. Ltd. (TSIP),Bangalore.

Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by Toshiba Embedded Software India Pvt. Ltd, for any loss or damage arising in any way from its use.

#3 lore raw
Quoted 4 lines · Vadivelan M

Thanks for your suggestion. But my kernel is fixed to version 3.0.35 and hence unable to use a different kernel. Please tell what is the problem in this kernel version if you already know. That would be very helpful.

If you use such an old kernel, you are basically on your own; community development & support takes place on top-of-tree.

Note that 3.0.35 is 227048 patches behind 3.18-rc6, and this does not even take into account that you are probably using 3.0.35 plus thousands of vendor patches. You can't seriously expect anyone in the community to help you with issues which have long been solved.

Regards,
Robert

Signature · 4 lines
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
author
#4 lore raw

I understand. Ok then let me try to solve the issue by myself.

Thanks,
Vadivelan.

-----Original Message-----
From: Robert Schwebel [mailto:[email protected]]
Sent: 26 November 2014 02:34
To: Vadivelan M
Cc: 'Fabio Estevam'; [email protected]
Subject: Re: eMMC write error in IMX6 Sabre AI board

Quoted 4 lines · Vadivelan M

Thanks for your suggestion. But my kernel is fixed to version 3.0.35 and hence unable to use a different kernel. Please tell what is the problem in this kernel version if you already know. That would be very helpful.

If you use such an old kernel, you are basically on your own; community development & support takes place on top-of-tree.

Note that 3.0.35 is 227048 patches behind 3.18-rc6, and this does not even take into account that you are probably using 3.0.35 plus thousands of vendor patches. You can't seriously expect anyone in the community to help you with issues which have long been solved.

Regards,
Robert

Signature · 22 lines
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
The information contained in this e-mail message and in any
attachments/annexure/appendices is confidential to the 
recipient and may contain privileged information. 
If you are not the intended recipient, please notify the
sender and delete the message along with any 
attachments/annexure/appendices. You should not disclose,
copy or otherwise use the information contained in the
message or any annexure. Any views expressed in this e-mail 
are those of the individual sender except where the sender 
specifically states them to be the views of 
Toshiba Software India Pvt. Ltd. (TSIP),Bangalore.

Although this transmission and any attachments are believed to be
free of any virus or other defect that might affect any computer 
system into which it is received and opened, it is the responsibility
of the recipient to ensure that it is virus free and no responsibility 
is accepted by Toshiba Embedded Software India Pvt. Ltd, for any loss or
damage arising in any way from its use.
#5 lore raw
Quoted 1 line · Vadivelan M

I understand. Ok then let me try to solve the issue by myself.

Out of interest, why can't you go with mainline?

rsc

Signature · 4 lines
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |