#10071 NORM Not Tri: external SD cards not working on XO-1.5
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Mon Jul 19 21:06:23 EDT 2010
#10071: external SD cards not working on XO-1.5
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Reporter: sascha_silbe | Owner: wmb at firmworks.com
Type: defect | Status: assigned
Priority: normal | Milestone: Not Triaged
Component: ofw - open firmware | Version: 1.5-C2
Resolution: | Keywords:
Next_action: test in release | Verified: 0
Deployment_affected: | Blockedby:
Blocking: |
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Changes (by wmb at firmworks.com):
* status: new => assigned
* next_action: never set => test in release
Comment:
This could be related to the fix in svn 1890. I discovered that, under
certain conditions, the Via VX855 will report a Data Timeout error on a
reset card (CMD0) command, even though CMD0 is not a data transfer
command.
svn 1890 seems to suppress this spurious CMD0 timeout by setting the data
timeout control register before doing any card commands. Previously it
was set before any real data transfer command, but after several non-data
commands.
This change will appear in Q3A44.
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Ticket URL: <http://dev.laptop.org/ticket/10071#comment:8>
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