[U-Boot] [PATCH 0/3] drivers/sandbox: Introduce a simplified remoteproc framework

[Simon Glass]

Hi Nishanth,

On 24 August 2015 at 11:28, Nishanth Menon <nm at ti.com> wrote:
> Hi,
>
> 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.
>
> The intent here is to introduce a simplified remoteproc framework
> which can then be used to provide basic services to these remote
> processors.
>
> Nishanth Menon (3):
>   drivers: Introduce a simplified remoteproc framework
>   remoteproc: Introduce a sandbox dummy driver
>   sandbox: Introduce dummy remoteproc nodes
>
>  arch/sandbox/dts/test.dts                          |  13 +
>  common/Kconfig                                     |   5 +
>  common/Makefile                                    |   1 +
>  common/cmd_remoteproc.c                            | 224 ++++++++++++
>  configs/sandbox_defconfig                          |   2 +
>  doc/device-tree-bindings/remoteproc/remoteproc.txt |  14 +
>  doc/driver-model/remoteproc-framework.txt          | 163 +++++++++
>  drivers/Kconfig                                    |   2 +
>  drivers/Makefile                                   |   1 +
>  drivers/remoteproc/Kconfig                         |  24 ++
>  drivers/remoteproc/Makefile                        |  10 +
>  drivers/remoteproc/rproc-uclass.c                  | 406 +++++++++++++++++++++
>  drivers/remoteproc/sandbox_testproc.c              | 243 ++++++++++++
>  include/dm/uclass-id.h                             |   1 +
>  include/remoteproc.h                               |  81 ++++
>  15 files changed, 1190 insertions(+)
>  create mode 100644 common/cmd_remoteproc.c
>  create mode 100644 doc/device-tree-bindings/remoteproc/remoteproc.txt
>  create mode 100644 doc/driver-model/remoteproc-framework.txt
>  create mode 100644 drivers/remoteproc/Kconfig
>  create mode 100644 drivers/remoteproc/Makefile
>  create mode 100644 drivers/remoteproc/rproc-uclass.c
>  create mode 100644 drivers/remoteproc/sandbox_testproc.c
>  create mode 100644 include/remoteproc.h
>
> Simple test with test.dtb:
> u-boot$ ./u-boot -d ./arch/sandbox/dts/test.dtb

Can you please also add a test to test/dm/remoteproc.c? It should try
a few operations as a sanity check. Ideally it shouldn't output
anything on the console.

Regards,
Simon