Re: [PATCH 2/2] arch: arm64: dts: Add support for AM69 Starter Kit

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Hi Krzysztof,

On Fri, Jan 20, 2023 at 4:03 PM Vignesh Raghavendra <vigneshr@xxxxxx> wrote:
>
> Hi Krzysztof,
>
> On 19/01/23 19:06, Krzysztof Kozlowski wrote:
> > On 19/01/2023 14:29, sabiya.d@xxxxxxxxxxxxxxxxxxxx wrote:
> >> From: Dasnavis Sabiya <sabiya.d@xxxxxx>
> >>
> >> AM69 Starter Kit is a single board designed for TI AM69 SOC that
> >> provides advanced system integration in automotive ADAS applications,
> >> autonomous mobile robot and edge AI applications. The SOC comprises
> >> of Cortex-A72s in dual clusters, lockstep capable dual Cortex-R5F MCUs,
> >> Vision Processing Accelerators (VPAC) with Image Signal Processor (ISP)
> >> and multiple vision assist accelerators, Depth and Motion Processing
> >> Accelerators (DMPAC), Deep-learning Matrix Multiply Accelerator(MMA)
> >> and C7x floating point vector DSP
> >>
> >> AM69 SK supports the following interfaces:
> >>        * 32 GB LPDDR4 RAM
> >>        * x1 Gigabit Ethernet interface
> >>        * x3 USB 3.0 Type-A ports
> >>        * x1 USB 3.0 Type-C port
> >>        * x1 UHS-1 capable micro-SD card slot
> >>        * x4 MCAN instances
> >>        * 32 GB eMMC Flash
> >>        * 512 Mbit OSPI flash
> >>        * x2 Display connectors
> >>        * x1 PCIe M.2 M Key
> >>        * x1 PCIe M.2 E Key
> >>        * x1 4L PCIe Card Slot
> >>        * x3 CSI2 Camera interface
> >>        * 40-pin Raspberry Pi header
> >>
> >> Add initial support for the AM69 SK board.
> >
> > Thank you for your patch. There is something to discuss/improve.
> >
> >>
> >> Design Files: https://www.ti.com/lit/zip/SPRR466
> >> TRM: https://www.ti.com/lit/zip/spruj52
> >>
> >> Signed-off-by: Dasnavis Sabiya <sabiya.d@xxxxxx>
> >> ---
> >>  arch/arm64/boot/dts/ti/Makefile       |   1 +
> >>  arch/arm64/boot/dts/ti/k3-am69-sk.dts | 180 ++++++++++++++++++++++++++
> >>  2 files changed, 181 insertions(+)
> >>  create mode 100644 arch/arm64/boot/dts/ti/k3-am69-sk.dts
> >>
> >> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
> >> index e7c2c7dd0b25..04b1a7611096 100644
> >> --- a/arch/arm64/boot/dts/ti/Makefile
> >> +++ b/arch/arm64/boot/dts/ti/Makefile
> >> @@ -20,6 +20,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j7200-common-proc-board.dtb
> >>
> >>  dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb
> >>
> >> +dtb-$(CONFIG_ARCH_K3) += k3-am69-sk.dtb
> >
> > I was told the order of entries here is "time of release". Is it
> > correct? This is the order you want to keep here and am69-sk was
> > released after j721s2-common-proc-board but before j784s4-evm?
>
>
> Unfortunately, files are not in any particular order at the moment.
>
> Currently, entries are grouped into a block based upon SoC present on
> them. Boards within the family block are sorted alphabetically. But the
> block of SoCs itself is arranged in no particular order.
>
> I would like to propose to cleanup this file such that board dtbs are
> grouped as per SoC present on them (like now), sort the group
> alphabetically. Also then sort alphabetically within the family (similar
> how boards appear in dt bindings)
>
> Will do that towards end of rc6 once these patches are queued up to
> avoid merge conflicts.
>
As per the approach mentioned by Vignesh, I have grouped the am69 sk into
the SoC block J784S4 and sorted the board in alphabetical order.
Please revert with your thoughts on this.
> >
> >>  dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb
> >>
> >
> >
> > Best regards,
> > Krzysztof
> >
>
> --
> Regards
> Vignesh

Regards
Dasnavis Sabiya



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