2014-05-19 오후 6:11, Barry Song 쓴 글:
2014-05-19 8:29 GMT+08:00 Gioh Kim <[email protected]>:
2014-05-18 오후 10:13, Barry Song 쓴 글:
2014-05-15 13:39 GMT+08:00 Gioh Kim <[email protected]>:
Hi,
My board is using Trustzone and running kernel is non-secure mode.
But setup function of PL310 driver is only for secure mode kernel.
What about adding an entry for non-secure mode setup function?
I'm sorry for my poor code but I just wanna say what I need .
Gioh,
i don't really understand what is the user scenarios for this, if you
are running linux in non-secure mode, your security-mode codes have
enabled L2, so this makes non-secure linux have no chance to execute
setup at all:
My platform runs linux kernel before L2 cache activation.
And the L2 cache is activated when the kernel sends command to Trustzone
firmware.
At this moment L2 is not activated. Linux should send command for L2
activation to Trustzone at the moment.
i think you can send command to trustzone firmware to enable L2 at
first, then make your Linux l2 driver run.
Right. My platform is working like that.
Activate L2 first and run l2x0 driver.
But I think many platforms have trustzone firmware and are working like my
platform.
They might need non-secure setup.
-barry
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