Hi, On Wed Feb 14, 2024 at 10:42 AM CET, Vignesh Raghavendra wrote: > On 14/02/24 13:13, Vaishnav Achath wrote: > > On 12/02/24 21:32, Michael Walle wrote: > >> On Tue Feb 6, 2024 at 11:06 AM CET, Vaishnav Achath wrote: > >>> +# Boards with J722s SoC > >>> +dtb-$(CONFIG_ARCH_K3) += k3-j722s-evm.dtb > >> > >> I'm a bit confused by your names. What are the new/correct ones now? > >> Some seem to use the amXX names and some the jXX ones. I've read [1] > >> and it appears it was suggested to use the am67 names for the device > >> trees. Esp. because there is already, am62, am64, am65, am68 and > >> am69 in as names for the device trees. > >> > >> The TRM you've linked in the cover letter doesn't shed much light > >> either. It just lists both. > >> > > > > Both names are correct, for other Jacinto devices J721S2 and J784S4, the > > industrial variants (AM68, AM69 respectively) and those boards were > > announced at a later point of time and since the automotive/J7 variants > > were introduced first, the SoC dtsi and files have the J7XX names, for > > AM62/AM64 there is no confusion in naming, in this case the initial TRM > > itself mentions J722S and AM67 variants with similar capabilities, the > > reasoning behind continuing with the J722S name is because the initial > > support is being added for J722S EVM (the top marking on the SoC package > > populated on the EVM say XJ722SAMW, this can be seen in the schematics > > also), please let know if this clarifies the confusion. > > > > AM64,AM62x/A/P are from different product line (Sitara) and don't have > any other aliases. > > On the other hand, Jacinto SoCs have both J7xx variant and AM6xx part > numbers. Its being really unpredictable wrt when AM6xx variants of > Jacinto devices come out. So as a general rule, we name the DTS files > based on the name of the first device that comes out in the market which > has consistently been J7xx. Thanks for the explanation. I just noticed that any k3-am6[89]* device trees will include the j7xx SoC dtsi. That would have been my next question: Boards with the AMxx will have the "correct" name k3-amNN-*. -michael
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