[U-Boot] [PATCH 04/15] spl: fit: simplify logic for FDT loading for non-OS boots

Dr. Philipp Tomsich philipp.tomsich at theobroma-systems.com
Wed Sep 13 22:11:44 UTC 2017


York,

> On 13 Sep 2017, at 23:24, York Sun <york.sun at nxp.com> wrote:
> 
> On 09/13/2017 02:21 PM, Dr. Philipp Tomsich wrote:
>> York,
>> 
>>> On 13 Sep 2017, at 23:16, York Sun <york.sun at nxp.com> wrote:
>>> 
>>> On 09/13/2017 12:30 PM, Philipp Tomsich wrote:
>>>> To better support bootin through an ATF or OPTEE, we need to
>>>> streamline some of the logic for when the FDT is appended to an image:
>>>> depending on the image type, we'd like to append the FDT not at all
>>>> (the case for the OS boot), to the 'firmware' image (if it is a
>>>> U-Boot) or to one of the loadables (if the 'firmware' is an ATF, an
>>>> OPTEE, or some other image-type and U-Boot is listed in the
>>>> loadabled).
>>>> 
>>>> To achieve this goal, we drop the os_boot flag and track the type of
>>>> image loaded.  If it is of type IH_OS_U_BOOT, we append the FDT.
>>>> 
>>>> Signed-off-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
>>>> ---
>>>> 
>>>>  common/spl/spl_fit.c | 86 ++++++++++++++++++++++++++++++++++------------------
>>>>  1 file changed, 56 insertions(+), 30 deletions(-)
>>> 
>>> This change seems OK. Make sure you test booting OS. Let me know if you
>>> need help.
>> 
>> I’d appreciate if you could test this on your end as well. I currently only
>> have test setups that need to go through ATF before entering an OS (as
>> the PSCI implementation lives in ATF).
> 
> Philipp,
> 
> I can test _this_ patch on my board. Looks like it doesn't depend on 
> other patches.

The other patches shouldn’t interfere (and have been exercised quite
a bit on our end): I am only worried about possibly breaking some of
your changes for your scenario.

Philipp.


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