SD card read error in u-boot

[Harald Koenig]

Hi,

I tried to switch from the original 512MB SD card (which works fine with my 
gta02v5)
to a 2GB Kingston card labeled SDC/2GB 30870-001.A00LF TAIWAN.  but with this 
2GB card
I get read errors even in u-boot (both NOR from May 9 and NAND from Oct 7).

mmcinit shows 
---
GTA02v5 # mmcinit
cmd 0x8, arg 0x1aa flags 0x75
Error after cmd: 0xfffc
Card Type:  SD
Manufacturer:   0x41, OEM 42
Product name:   SD2GB, revision 1.0
Serial number:  336592896
Manufacturing date: 4/2007
MMC/SD size:503MiB
---

note the cmd error and wrong size :-(

that 2GB SD card works fine in my notebook and a Nokia mobile phone.


ext2ls  usually only shows the following error 

GTA02v5 # ext2ls mmc 1:2
Failed to mount ext2 filesystem...
** Bad ext2 partition or disk - mmc 1:2 **

sometimes there is some dir listing, but typically intercepted with ext2 read 
errors:

GTA02v5 # ext2ls mmc 1:2
DIR   1024 .
DIR   1024 ..
DIR  12288 lost+found
DIR261 sys
cmd 0x10, arg 0x200 flags 0x15
Error after cmd: 0xfffc
cmd 0x11, arg 0x1dd96a00 flags 0x235
Error after cmd: 0xfffc
cmd 0x10, arg 0x200 flags 0x15
Error after cmd: 0xfffc
cmd 0x11, arg 0x1dd96a00 flags 0x235
Error after cmd: 0xfffc
[...]
cmd 0x10, arg 0x200 flags 0x15
Error after cmd: 0xfffc
cmd 0x11, arg 0x1dd96a00 flags 0x235
Error after cmd: 0xfffc
DIR   2048 etc
DIR 262146 tmp
cmd 0x10, arg 0x200 flags 0x15
Error after cmd: 0xfffc
cmd 0x11, arg 0x1dd96a00 flags 0x235
Error after cmd: 0xfffc
cmd 0x10, arg 0x200 flags 0x15
Error after cmd: 0xfffc
cmd 0x11, arg 0x1dd96a00 flags 0x235
Error after cmd: 0xfffc
DIR   2048 sbin
DIR   1024 usr
DIR   1024 opt
DIR   1024 lib
DIR   1024 proc
DIR   1024 home
DIR   2048 bin
DIR   1024 media
DIR   1024 var
DIR   1024 boot
DIR   1024 dev
DIR   1024 mnt
GTA02v5 # 



fatls on partition 1 typically works, I can load the kernel from fat,
but the kernel never is able to mount the ext2 rootfs.

fsck of that e2 partition with my notebook doesn't show errors


is it possible in u-boot to tune/test different glamo sd settings (clk, power) ?

is there any chance to use this (such a) card _reliably_ inclding u-boot  
(not only with kernel parameters like glamo_mci.sd_post_power_clock=100) ?



thanks for any help!

Harald
-- 
I hope to die  ___   _
before I *have* to use Microsoft Word.,   0--,|/OOO\
Donald E. Knuth, 02-Oct-2001 in Tuebingen._/  /  /OOO\
\  \/OOO\
  \ O|//
   \/\/\/\/\/\/\/\/\/
Harald Koenig   //  / \\  \
koe...@tat.physik.uni-tuebingen.de ^   ^

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Re: SD card read error in u-boot

[Paul Fertser]

Hi,

Harald Koenig koe...@tat.physik.uni-tuebingen.de writes:
 I tried to switch from the original 512MB SD card (which works fine with my 
 gta02v5)
 to a 2GB Kingston card labeled SDC/2GB 30870-001.A00LF TAIWAN.  but with this 
 2GB card
 I get read errors even in u-boot (both NOR from May 9 and NAND from
 Oct 7).

As far as i understand u-boot is considered somewhat deprecated and
has known problems with some SD cards. The stable kernel doesn't
include the latest SD fixes too, AFAIK.

So, try Qi (preferably from git HEAD). And try andy-tracking (at least
c59a8bdc7ca4b547 or so, as resume was broken before).

-- 
Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
mailto:fercer...@gmail.com


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