From: hzpeterchen@gmail.com (Peter Chen)
To: linux-arm-kernel@lists.infradead.org
Subject: About ARM TCM patch
Date: Fri, 25 Sep 2009 09:30:05 +0800 [thread overview]
Message-ID: <4ABC1D1D.6050506@gmail.com> (raw)
Dear ML,
I read the TCM patch from http://lwn.net/Articles/353032/
It said:
Code executing inside the ITCM does not "see" any MMU mappings
and e.g. register accesses must be made to physical addresses.
I am doubt it is correctly for all systems, at my SoC
platform(arm1136JF, v6), the situation is difference.
1. After MMU open, the code running at ITCM can't see physical address
for register.
2. After MMU open, the code can't run at physical addressed ITCM.
--
Best regards,
Peter Chen
next reply other threads:[~2009-09-25 1:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-25 1:30 Peter Chen [this message]
2009-09-25 5:04 ` About ARM TCM patch Dave Hylands
2009-09-25 9:15 ` Linus Walleij
2009-09-26 21:58 ` Linus Walleij
2009-09-27 1:29 ` Peter Chen
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