On Thu, Sep 17, 2015 at 03:42:39PM -0500, Nishanth Menon wrote: > Many System on Chip(SoC) solutions are complex with multiple processors > on the same die dedicated to either general purpose of specialized > functions. Many examples do exist in today's SoCs from various vendors. > Typical examples are micro controllers such as an ARM M3/M0 doing a > offload of specific function such as event integration or power > management or controlling camera etc. > > Traditionally, the responsibility of loading up such a processor with a > firmware and communication has been with a High Level Operating > System(HLOS) such as Linux. However, there exists classes of products > where Linux would need to expect services from such a processor or the > delay of Linux and operating system being able to load up such a > firmware is unacceptable. > > To address these needs, we need some minimal capability to load such a > system and ensure it is started prior to an Operating System(Linux or > any other) is started up. > > NOTE: This is NOT meant to be a solve-all solution, instead, it tries to > address certain class of SoCs and products that need such a solution. > > A very simple model is introduced here as part of the initial support > that supports microcontrollers with internal memory (no MMU, no > execution from external memory, or specific image format needs). This > basic framework can then (hopefully) be extensible to other complex SoC > processor support as need be. > > Reviewed-by: Simon Glass <s...@chromium.org> > Signed-off-by: Nishanth Menon <n...@ti.com> > Acked-by: Simon Glass <s...@chromium.org>
Applied to u-boot/master, thanks! -- Tom
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