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AR# 66893

QEMU : QSPI test fails with connection timed out

Description

When running a QSPI test [read/write operation], a connection time-out is observed.

Why is it failing?

Solution

In QEMU, QSPI is modeled totally unrelated to timing, which makes the guest behavior unpredictable when the guest software is working with time-out.


Work-around: The present timeout tolerance should be increased in order to resolve this issue.

Change the tolerance to 200 in spi.c line 956, located in /linux-xlnx/tree/master/drivers/spi/spi.c.

AR# 66893
Date Created 03/28/2016
Last Updated 04/19/2016
Status Active
Type General Article
Tools
  • PetaLinux - 2015.4
  • PetaLinux - 2015.2.1