From: matthew.gerlach@linux.intel.com
To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: dinguyen@kernel.org, robh+dt@kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
krzysztof.kozlowski+dt@linaro.org
Subject: Re: [PATCH v2 3/3] arm64: dts: intel: add device tree for n6000
Date: Thu, 5 May 2022 10:16:50 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.22.394.2205051016190.3669830@rhweight-WRK1> (raw)
In-Reply-To: <316d2e11-a12a-3a73-0d07-a606005df159@linaro.org>
On Thu, 5 May 2022, Krzysztof Kozlowski wrote:
> On 04/05/2022 23:22, matthew.gerlach@linux.intel.com wrote:
>>
>>
>> On Wed, 4 May 2022, Krzysztof Kozlowski wrote:
>>
>>> On 03/05/2022 21:45, matthew.gerlach@linux.intel.com wrote:
>>>> From: Matthew Gerlach <matthew.gerlach@linux.intel.com>
>>>>
>>>> Add a device tree for the n6000 instantiation of Agilex
>>>> Hard Processor System (HPS).
>>>>
>>>> Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
>>>
>>>> +
>>>> + soc {
>>>> + agilex_hps_bridges: bus@80000000 {
>>>> + compatible = "simple-bus";
>>>> + reg = <0x80000000 0x60000000>,
>>>> + <0xf9000000 0x00100000>;
>>>> + reg-names = "axi_h2f", "axi_h2f_lw";
>>>> + #address-cells = <0x2>;
>>>> + #size-cells = <0x1>;
>>>> + ranges = <0x00000000 0x00000000 0xf9000000 0x00001000>;
>>>> +
>>>> + hps_cp_eng@0 {
>>>
>>> No underscores in node names. dtc W=1 should complain about it.
>>
>> I will remove the underscores in the name. I didn't see a complaint when
>> I compiled it with "make W=1" in the kernel tree.
>>
>>> The node name should be generic, matching class of a device. What is
>>> this exactly?
>>
>> The component is a specialized IP block instantiated in the FPGA directly
>> connected to the HPS. In one sense the IP block is a simple DMA
>> controller, but it also has some registers for hand shaking between the
>> HPS and a host processor connected to the FPGA via PCIe. Should I call
>> the node, dma@0?
>
> Then maybe the closest is dma-controller.
OK, I will call it dma-controller@0.
Thanks,
Matthew
>
>
> Best regards,
> Krzysztof
>
prev parent reply other threads:[~2022-05-05 17:17 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-03 19:45 [PATCH v2 0/3] Add device tree for Intel n6000 matthew.gerlach
2022-05-03 19:45 ` [PATCH v2 1/3] dt-bindings: misc: add bindings for Intel HPS Copy Engine matthew.gerlach
2022-05-04 15:04 ` Krzysztof Kozlowski
2022-05-04 22:41 ` matthew.gerlach
2022-05-05 8:18 ` Krzysztof Kozlowski
2022-05-05 17:18 ` matthew.gerlach
2022-05-03 19:45 ` [PATCH v2 2/3] dt-bindings: intel: add binding for Intel n6000 matthew.gerlach
2022-05-04 14:54 ` Krzysztof Kozlowski
2022-05-04 21:09 ` matthew.gerlach
2022-05-03 19:45 ` [PATCH v2 3/3] arm64: dts: intel: add device tree for n6000 matthew.gerlach
2022-05-04 14:56 ` Krzysztof Kozlowski
2022-05-04 21:14 ` matthew.gerlach
2022-05-04 15:02 ` Krzysztof Kozlowski
2022-05-04 21:22 ` matthew.gerlach
2022-05-05 6:42 ` Krzysztof Kozlowski
2022-05-05 17:16 ` matthew.gerlach [this message]
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