Re: [PATCH] OMAP: hwmod: add kernel cmdline flag to avoid resettingIP blocks during init

[Paul Walmsley]

cc'ing Aaro

On Mon, 4 Jul 2011, Tony Lindgren wrote:

> Also related is the gptimer12 on secure omaps as reported by Aaro.

This problem is actually worse.  In this case it's not just preventing 
reset; we must prevent the kernel from using the device at all. My 
understanding is also that it's the X-Loader or bootloader -- or more 
broadly, secure mode code -- that actually chooses which devices are 
protected in this way.  In other words, we can't make any automatic 
decisions that are based on knowing that a chip is a high-security chip -- 
it will need to be defined by the board file :-(

For this case, we probably need some board file function to tell the hwmod 
code to disregard a device completely, to tell the kernel to pretend that 
the device does not exist.


- Paul
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