From: Jessica Clarke <jrtc27@jrtc27.com>
To: Conor Dooley <conor.dooley@microchip.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
andre.przywara@arm.com, devicetree <devicetree@vger.kernel.org>,
Albert Ou <aou@eecs.berkeley.edu>,
Samuel Holland <samuel@sholland.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
jernej.skrabec@gmail.com,
prabhakar.mahadev-lad.rj@bp.renesas.com, wens@csie.org,
robh+dt@kernel.org, palmer@dabbelt.com,
krzysztof.kozlowski+dt@linaro.org, paul.walmsley@sifive.com,
linux-riscv@lists.infradead.org, linux-sunxi@lists.linux.dev
Subject: Re: [PATCH 06/12] riscv: dts: allwinner: Add the D1 SoC base devicetree
Date: Mon, 22 Aug 2022 16:29:02 +0100 [thread overview]
Message-ID: <C0B4F750-1C99-408A-A2DA-B72BBF7361B4@jrtc27.com> (raw)
In-Reply-To: <44b6f601-1a11-aacf-5592-5b61550afb9f@microchip.com>
On 22 Aug 2022, at 14:56, conor.dooley@microchip.com wrote:
>
> On 22/08/2022 13:31, Geert Uytterhoeven wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>
>
>
>>> Do you think this is worth doing? Or are you just providing an
>>> example of what could be done?
>>
>> Just some brainstorming...
>>
>>> Where would you envisage putting these macros? I forget the order
>>> of the CPP operations that are done, can they be put in the dts?
>>
>> The SOC_PERIPHERAL_IRQ() macro should be defined in the
>> ARM-based SoC.dtsi file and the RISC-V-based SoC.dtsi file.
>
> Right, one level up but ~the same result.
>
>
>>>> Nice! But it's gonna be a very large interrupt-map.
>>>
>>> I quite like the idea of not duplicating files across the archs
>>> if it can be helped, but not at the expense of making them hard to
>>> understand & I feel like unfortunately the large interrupt map is
>>> in that territory.
>>
>> I feel the same.
>> Even listing both interrupt numbers in SOC_PERIPHERAL_IRQ(na, nr)
>> is a risk for making mistakes.
>>
>> So personally, I'm in favor of teaching dtc arithmetic, so we can
>> handle the offset in SOC_PERIPHERAL_IRQ().
>
> Yup, in the same boat here. mayb I'll get bored enough to bite..
Note that GPL’ed dtc isn’t the only implementation. FreeBSD uses a
BSD-licensed implementation[1] and so adding new features like this to
GPL dtc that actually get used would require us to reimplement it too.
I don’t know how much effort it would be but please keep this in mind.
Jess
[1] https://github.com/davidchisnall/dtc
next prev parent reply other threads:[~2022-08-22 15:29 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-15 5:08 [PATCH 00/12] riscv: Allwinner D1 platform support Samuel Holland
2022-08-15 5:08 ` [PATCH 01/12] MAINTAINERS: Match the sun20i family of Allwinner SoCs Samuel Holland
2022-08-15 17:06 ` Heiko Stübner
2022-08-15 5:08 ` [PATCH 02/12] dt-bindings: riscv: Add T-HEAD C906 and C910 compatibles Samuel Holland
2022-08-15 17:07 ` Heiko Stübner
2022-08-16 17:34 ` Rob Herring
2022-11-04 2:57 ` Icenowy Zheng
2022-11-20 11:23 ` Conor Dooley
2022-11-20 11:25 ` Conor Dooley
2022-08-15 5:08 ` [PATCH 03/12] dt-bindings: vendor-prefixes: Add Allwinner D1 board vendors Samuel Holland
2022-08-15 17:12 ` Heiko Stübner
2022-08-16 17:34 ` Rob Herring
2022-08-15 5:08 ` [PATCH 04/12] dt-bindings: riscv: Add Allwinner D1 board compatibles Samuel Holland
2022-08-16 7:39 ` Krzysztof Kozlowski
2022-08-16 9:02 ` Heiko Stübner
2022-08-16 9:12 ` Heiko Stübner
2022-08-16 17:35 ` Rob Herring
2022-08-15 5:08 ` [PATCH 05/12] riscv: Add the Allwinner SoC family Kconfig option Samuel Holland
2022-08-15 16:56 ` Conor.Dooley
2022-08-16 9:17 ` Heiko Stübner
2022-08-16 9:23 ` Conor.Dooley
2022-08-15 17:13 ` Heiko Stübner
2022-08-15 5:08 ` [PATCH 06/12] riscv: dts: allwinner: Add the D1 SoC base devicetree Samuel Holland
2022-08-15 13:11 ` Andre Przywara
2022-08-15 17:01 ` Conor.Dooley
2022-08-20 17:24 ` Samuel Holland
2022-08-20 17:29 ` Conor.Dooley
2022-08-21 6:45 ` Icenowy Zheng
2022-08-21 10:04 ` Conor.Dooley
2022-08-22 11:46 ` Geert Uytterhoeven
2022-08-22 12:13 ` Conor.Dooley
2022-08-22 12:29 ` Andre Przywara
2022-08-22 12:31 ` Geert Uytterhoeven
2022-08-22 13:56 ` Conor.Dooley
2022-08-22 15:29 ` Jessica Clarke [this message]
2022-09-09 3:42 ` Samuel Holland
2022-09-09 7:10 ` Geert Uytterhoeven
2022-09-21 7:49 ` Geert Uytterhoeven
2022-08-22 10:50 ` Andre Przywara
2022-08-16 7:41 ` Krzysztof Kozlowski
2022-08-16 7:49 ` Jernej Škrabec
2022-08-16 9:12 ` Heiko Stübner
2022-08-16 9:25 ` Jernej Škrabec
2022-08-16 9:42 ` Krzysztof Kozlowski
2022-08-16 11:00 ` Andre Przywara
2022-08-16 11:11 ` Krzysztof Kozlowski
2022-08-16 11:12 ` Krzysztof Kozlowski
2022-08-16 11:34 ` Conor.Dooley
2022-08-22 11:40 ` Geert Uytterhoeven
2022-08-16 9:11 ` Heiko Stübner
2022-08-17 8:29 ` Krzysztof Kozlowski
2022-08-19 22:19 ` Conor.Dooley
2022-08-15 5:08 ` [PATCH 07/12] riscv: dts: allwinner: Add Allwinner D1 Nezha devicetree Samuel Holland
2022-08-15 17:37 ` Conor.Dooley
2022-08-15 18:34 ` Conor.Dooley
2022-08-16 8:55 ` Heiko Stübner
2022-08-19 22:10 ` Conor.Dooley
2022-08-21 7:06 ` Icenowy Zheng
2022-09-04 20:10 ` Peter Korsgaard
2022-09-09 4:37 ` Samuel Holland
2022-09-09 7:18 ` Conor.Dooley
2022-09-09 8:11 ` Heiko Stübner
2022-09-09 19:04 ` Jessica Clarke
2022-09-03 15:21 ` Peter Korsgaard
2022-08-15 5:08 ` [PATCH 08/12] riscv: dts: allwinner: Add Sipeed Lichee RV devicetrees Samuel Holland
2022-08-15 5:08 ` [PATCH 09/12] riscv: dts: allwinner: Add MangoPi MQ Pro devicetree Samuel Holland
2022-08-15 5:08 ` [PATCH 10/12] riscv: dts: allwinner: Add Dongshan Nezha STU devicetree Samuel Holland
2022-08-15 5:08 ` [PATCH 11/12] riscv: dts: allwinner: Add ClockworkPi and DevTerm devicetrees Samuel Holland
2022-08-15 5:08 ` [PATCH 12/12] riscv: defconfig: Enable the Allwinner D1 platform and drivers Samuel Holland
2022-08-15 7:05 ` [PATCH 00/12] riscv: Allwinner D1 platform support Conor.Dooley
2022-08-15 17:12 ` Conor.Dooley
2022-08-16 2:42 ` Samuel Holland
2022-08-16 6:38 ` Conor.Dooley
2022-09-01 18:10 ` Palmer Dabbelt
2022-09-02 5:42 ` Conor.Dooley
2022-09-06 20:29 ` Jernej Škrabec
2022-09-07 20:43 ` Conor.Dooley
2022-09-08 7:00 ` Geert Uytterhoeven
2022-09-08 9:04 ` Arnd Bergmann
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