Hi, the work around provided is too high level, could any one please provide more information and also if any fix is provided it will be a great helpful for me.
Work Around is mentioned as protecting the MMU with correct settings - what does it mean, and in ARM Architecture reference manual, it has been mentioned that in order to avoid dead lock, DSB operation is needed before entering the WFI. What does DSB Operation means??
Thanks in advance.
Hi Subramanyam
below links may answer questions:
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0344k/Babhejba.html
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0344k/Babhejba.html
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0360f/I31997.html
Unfortunately for details it is necessary to apply to ARM (www.arm.com), actually this info
is provided by ARM.
Best regards
chip
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Hi,
i contacted ARM and they suggested to contact freescale. Is this issue applicable to only IM6 Platforms, or it is generic for all Cortex A9 based processors.
It is generic arm cortex-a9 core errata (this core is ARM IP).
Info was received from ARM.
Hi,
So to protect the MMU, the configuration( Proper MMU Settings ), should be done during the Kernel Init only?
Regards,
Manyam
Hi Manyam
yes.
Optionally Uboot also can configure MMU,
in such case - in Uboot too.
Best regards
chip