Hi, On Tue, Sep 10, 2019 at 08:56:49AM -0500, Adam Ford wrote: > On Thu, Sep 5, 2019 at 6:04 PM Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > Oh and this needs to default to status = "disabled" for > > HS devices like n900 as it needs to use the omap3-rom-rng. > > I don't know enough about the HS version of the OMAP3, but what's the > main difference between omap3-rom-rng and this one? The OMAP HS chips have the bus firewall configured to block direct access to some cryptography related devices. The kernel will crash with a bus error, if you try to read/write the registers for protected devices. The omap3-rom-rng avoids this by communicating with the security middleware component instead of directly accessing the RNG hardware. -- Sebastian
Attachment:
signature.asc
Description: PGP signature
