linux-kernel - Re: [PATCH v4] arm64: zynqmp: Add support for Xilinx Kria SOM board

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Message-ID: <57b9543f-b1a7-8c96-5ed6-63b937cee3fa@xilinx.com>
Date:   Wed, 22 Sep 2021 09:08:05 +0200
From:   Michal Simek <michal.simek@...inx.com>
To:     Rob Herring <robh@...nel.org>,
        Michal Simek <michal.simek@...inx.com>
CC:     <linux-kernel@...r.kernel.org>, <monstr@...str.eu>,
        <git@...inx.com>, Viresh Kumar <viresh.kumar@...aro.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        "Michael Walle" <michael@...le.cc>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4] arm64: zynqmp: Add support for Xilinx Kria SOM board



On 9/21/21 11:30 PM, Rob Herring wrote:
> On Wed, Sep 15, 2021 at 11:24:58AM +0200, Michal Simek wrote:
>> There are couple of revisions of SOMs (k26) and associated carrier cards
>> (kv260).
>> SOM itself has two major versions:
>> sm-k26 - SOM with EMMC
>> smk-k26 - SOM without EMMC used on starter kit with preprogrammed firmware
>> in QSPI.
>>
>> SOMs are describing only devices available on the SOM or connections which
>> are described in specification (for example UART, fwuen).
>>
>> Signed-off-by: Michal Simek <michal.simek@...inx.com>
>> ---
>>
>> Changes in v4:
>> - Remove ina260 and usb5744 nodes
>> - Remove compatible string from overlays
>>
>> Changes in v3:
>> - Fix led node name
>> - Fix compatible string for xlnx,zynqmp-sk-kv260-revA/Y/Z
>> - Fix headers alignment
>> - Move USB3 PHY properties from DWC3 node to USB node - reported by Manish
>>   Narani
>> - Change dtb names generated with dtbo
>> - Fix emmc comment style
>>
>> Changes in v2:
>> - Use sugar syntax - reported by Geert
>> - Update copyright years
>> - Fix SD3.0 comment alignment
>> - Remove one newline from Makefile
>>
>> https://www.xilinx.com/products/som/kria.html
>> Based on
>> https://lore.kernel.org/r/cover.1628244703.git.michal.simek@xilinx.com
>>
>> ---
>>  .../devicetree/bindings/arm/xilinx.yaml       |  16 +
>>  arch/arm64/boot/dts/xilinx/Makefile           |  13 +
>>  .../boot/dts/xilinx/zynqmp-sck-kv-g-revA.dts  | 315 ++++++++++++++++++
>>  .../boot/dts/xilinx/zynqmp-sck-kv-g-revB.dts  | 298 +++++++++++++++++
>>  .../boot/dts/xilinx/zynqmp-sm-k26-revA.dts    | 289 ++++++++++++++++
>>  .../boot/dts/xilinx/zynqmp-smk-k26-revA.dts   |  21 ++
>>  6 files changed, 952 insertions(+)
>>  create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revA.dts
>>  create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dts
>>  create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
>>  create mode 100644 arch/arm64/boot/dts/xilinx/zynqmp-smk-k26-revA.dts
>>
>> diff --git a/Documentation/devicetree/bindings/arm/xilinx.yaml b/Documentation/devicetree/bindings/arm/xilinx.yaml
>> index a0b1ae6e3e71..4dc0e0195974 100644
>> --- a/Documentation/devicetree/bindings/arm/xilinx.yaml
>> +++ b/Documentation/devicetree/bindings/arm/xilinx.yaml
>> @@ -116,6 +116,22 @@ properties:
>>            - const: xlnx,zynqmp-zcu111
>>            - const: xlnx,zynqmp
>>  
>> +      - description: Xilinx Kria SOMs
>> +        items:
>> +          - const: xlnx,zynqmp-sm-k26-rev1
>> +          - const: xlnx,zynqmp-sm-k26-revB
>> +          - const: xlnx,zynqmp-sm-k26-revA
>> +          - const: xlnx,zynqmp-sm-k26
>> +          - const: xlnx,zynqmp
>> +
>> +      - description: Xilinx Kria SOMs (starter)
>> +        items:
>> +          - const: xlnx,zynqmp-smk-k26-rev1
>> +          - const: xlnx,zynqmp-smk-k26-revB
>> +          - const: xlnx,zynqmp-smk-k26-revA
>> +          - const: xlnx,zynqmp-smk-k26
>> +          - const: xlnx,zynqmp
>> +
>>  additionalProperties: true
>>  
>>  ...
>> diff --git a/arch/arm64/boot/dts/xilinx/Makefile b/arch/arm64/boot/dts/xilinx/Makefile
>> index 083ed52337fd..4e159540d031 100644
>> --- a/arch/arm64/boot/dts/xilinx/Makefile
>> +++ b/arch/arm64/boot/dts/xilinx/Makefile
>> @@ -17,3 +17,16 @@ dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-zcu104-revA.dtb
>>  dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-zcu104-revC.dtb
>>  dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-zcu106-revA.dtb
>>  dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-zcu111-revA.dtb
>> +
>> +dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-sm-k26-revA.dtb
>> +dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-smk-k26-revA.dtb
>> +
>> +sm-k26-revA-sck-kv-g-revA-dtbs := zynqmp-sm-k26-revA.dtb zynqmp-sck-kv-g-revA.dtbo
>> +sm-k26-revA-sck-kv-g-revB-dtbs := zynqmp-sm-k26-revA.dtb zynqmp-sck-kv-g-revB.dtbo
>> +smk-k26-revA-sm-k26-revA-sck-kv-g-revA-dtbs := zynqmp-smk-k26-revA.dtb zynqmp-sck-kv-g-revA.dtbo
>> +smk-k26-revA-sm-k26-revA-sck-kv-g-revB-dtbs := zynqmp-smk-k26-revA.dtb zynqmp-sck-kv-g-revB.dtbo
> 
> I assume there is some value in these being overlays? I probably asked 
> that already too, but don't remember. Please explain in the commit 
> message so we capture that.

I have sent v5 version with explanation in commit message.

Thanks,
Michal