[U-Boot] [PATCH v1 0/3] Enable HPS execution stage notification

[Marek Vasut]

On 5/7/19 4:08 PM, Ang, Chee Hong wrote:
> On Tue, 2019-05-07 at 15:03 +0200, Marek Vasut wrote:
>> On 5/7/19 7:07 AM, chee.hong.ang at intel.com wrote:
>>>
>>> From: "Ang, Chee Hong" <chee.hong.ang at intel.com>
>>>
>>> Notify Secure Device Manager (SDM) on the stage of HPS code
>>> execution.
>>> In general, there are three main code execution stages:
>>> (1) First Stage Boot Loader (FSBL) which is U-Boot SPL.
>>> (2) Second Stage Boot Loader (SSBL) which is U-Boot.
>>> (3) Operating System which is Linux.
>>>
>>> Ang, Chee Hong (3):
>>>   ARM: socfpga: stratix10: Add HPS execution stage notification
>>> function
>>>   ARM: socfpga: stratix10: To notify SDM when SPL pass control to
>>> U-Boot
>>>   ARM: socfpga: stratix10: To notify SDM when U-Boot pass control
>>> to
>>>     Linux
>>>
>>>  arch/arm/mach-socfpga/include/mach/mailbox_s10.h | 7 +++++++
>>>  arch/arm/mach-socfpga/mailbox_s10.c              | 6 ++++++
>>>  arch/arm/mach-socfpga/misc_s10.c                 | 5 +++++
>>>  arch/arm/mach-socfpga/spl_s10.c                  | 6 ++++++
>>>  4 files changed, 24 insertions(+)
>> Can we expect any of this mbox stuff to be ever migrated over to DM
>> and
>> moved into drivers/ instead of constantly adding stuff to mach-
>> socfpga ?
>>
> These mailbox stuffs are basically a set of functions shared by SPL, u-
> boot and Linux (PSCI) which is specific to our platform. Even if we
> convert this mailbox stuffs to DM and move to drivers/, we still need
> to duplicate those functions for PSCI which can be called by Linux. We
> are starting to spend time converting our existing clock manager and
> etc for S10 platform to DM and will move them to drivers/.
> But we still need to keep those PSCI stuffs which are specific to our
> platform in mach-sofcpga.
> 
There was some discussion about the PSCI here:
https://www.mail-archive.com/u-boot@lists.denx.de/msg319458.html

-- 
Best regards,
Marek Vasut