[PATCH 0/2] Add support for loading images above 4GB

[Michal Simek]

Hi Simon,

On 07. 09. 20 15:57, Simon Glass wrote:
> Hi Michal,
> 
> On Mon, 7 Sep 2020 at 03:01, Michal Simek <michal.simek at xilinx.com> wrote:
>>
>> Hi Simon,
>>
>> On 07. 09. 20 3:43, Simon Glass wrote:
>>> Hi Michal,
>>>
>>> On Thu, 3 Sep 2020 at 06:30, Michal Simek <michal.simek at xilinx.com> wrote:
>>>>
>>>> Hi,
>>>>
>>>> On 03. 09. 20 13:16, Heinrich Schuchardt wrote:
>>>>> On 9/3/20 1:03 PM, Michal Simek wrote:
>>>>>> Hi,
>>>>>>
>>>>>> We have several use cases where customers want to partition memory by
>>>>>> putting NS images above 4GB. On Xilinx arm 64bit SOC 0-2GB can be used for
>>>>>> others CPU in the systems (like R5) or for secure sw.
>>>>>> Currently there is limitation in SPL to record load/entry addresses in
>>>>>> 64bit format because they are recorded in 32bit only.
>>>>>> This series add support for it.
>>>>>> Patches have been tested on Xilinx ZynqMP zcu102 board in SD bootmode with
>>>>>> images generated by binman. Because u-boot is using
>>>>>> CONFIG_POSITION_INDEPENDENT it can be put to others 4k aligned addresses
>>>>>> and there is no real need to build it to certain offset.
>>>>>>
>>>>>> Thanks,
>>>>>> Michal
>>>>>
>>>>> Hello Michal,
>>>>>
>>>>> does this series require changes to doc/uImage.FIT/source_file_format.txt?
>>>>
>>>> I am not changing fit format. I am just changing how SPL records
>>>> loadables in DT fit-images node. And also series is using FIT functions
>>>> for reading these properties (at least in this version).
>>>
>>> Well I think there should be some mention of the 32/64 bit issue added
>>> to the FIT docs. How about adding an example with 64-bit addresses?
>>
>> git grep "fit-images" doc/
>> and output is 0. It means we really don't have any documentation for
>> fit-images embed node.
>> It means we should create one.
>>
>> /fit-images are related to loadables property that's why I think make
>> sense to document them together.
>>
>> What about doc/uImage.FIT/howto.txt?
> 
> Sounds good.

v2 sent.

Thanks,
Michal