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

Paul Walmsley
2011-07-06T01:42:15Z

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