linux-kernel - Re: [PATCH RFC net-next 0/4] Add the dwmac driver support for T-HEAD TH1520 SoC.

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Message-ID: <w3ex6eu3fhv4rmb67hm5ktwkehefw25gmemtqsjjfaa76z7v6t@vmfzungbincv>
Date: Sun, 14 Jul 2024 16:15:09 +0300
From: Serge Semin <fancer.lancer@...il.com>
To: Drew Fustini <drew@...7.com>
Cc: "David S. Miller" <davem@...emloft.net>, 
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Alexandre Torgue <alexandre.torgue@...s.st.com>, Giuseppe Cavallaro <peppe.cavallaro@...com>, 
	Jose Abreu <joabreu@...opsys.com>, Jisheng Zhang <jszhang@...nel.org>, 
	Maxime Coquelin <mcoquelin.stm32@...il.com>, Emil Renner Berthing <emil.renner.berthing@...onical.com>, 
	Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>, Conor Dooley <conor@...nel.org>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>, netdev@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
	linux-arm-kernel@...ts.infradead.org, linux-riscv@...ts.infradead.org, 
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH RFC net-next 0/4] Add the dwmac driver support for T-HEAD
 TH1520 SoC.

Hi Drew

On Sat, Jul 13, 2024 at 03:35:09PM -0700, Drew Fustini wrote:
> I am marking this as an RFC since it has been almost a year since the
> previous series and Jisheng has handed it off to me. There was
> discussion about the syscon for the APB registers in Jisheng's v2. I've
> gone a different route and switched to adding a second memory region to
> the gmac node:
> 
>   dwmac: DesignWare GMAC IP core registers
>     apb: GMAC APB registers
> 
> This patch depends my clock controller series:
> 
>  [PATCH v3 0/7] clk: thead: Add support for TH1520 AP_SUBSYS clock controller
>  https://lore.kernel.org/linux-riscv/20240711-th1520-clk-v3-0-6ff17bb318fb@tenstorrent.com/
> 
> and the pinctrl series from Emil:
> 
>  [PATCH v2 0/8] Add T-Head TH1520 SoC pin control
>  https://lore.kernel.org/linux-riscv/20240103132852.298964-1-emil.renner.berthing@canonical.com
> 
> I have a branch with this series and the dependencies on top of 6.10-rc7:
>  https://github.com/pdp7/linux/tree/b4/thead-dwmac
> 
> Changes since Jisheng v2:
>  - remove thead,gmacapb that references syscon for APB registers
>  - add a second memory region to gmac nodes for the APB registers
>  - Link: https://lore.kernel.org/all/20230827091710.1483-1-jszhang@kernel.org/

I see the vast majority of the v2 comments left ignored:
compatible-string, Tx/Rx common clock handle, clock delays, etc.
Please take a closer look at v2 discussions and make sure the notes
were implemented or send a reasonable response why it wasn't done.

-Serge(y)

> 
> Changes since Jisheng v1:
>  - rebase on the lastest net-next
>  - collect Reviewed-by tag
>  - address Krzysztof's comment of the dt binding
>  - fix "div is not initialised" issue pointed out by Simon
>  - Link: https://lore.kernel.org/all/20230820120213.2054-1-jszhang@kernel.org/
> 
> ---
> Emil Renner Berthing (1):
>       riscv: dts: thead: Add TH1520 ethernet nodes
> 
> Jisheng Zhang (3):
>       dt-bindings: net: snps,dwmac: allow dwmac-3.70a to set pbl properties
>       dt-bindings: net: add T-HEAD dwmac support
>       net: stmmac: add glue layer for T-HEAD TH1520 SoC
> 
>  .../devicetree/bindings/net/snps,dwmac.yaml        |   2 +
>  .../devicetree/bindings/net/thead,dwmac.yaml       |  81 ++++++
>  MAINTAINERS                                        |   2 +
>  arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts |  89 ++++++
>  .../boot/dts/thead/th1520-lichee-module-4a.dtsi    | 131 +++++++++
>  arch/riscv/boot/dts/thead/th1520.dtsi              |  55 +++-
>  drivers/net/ethernet/stmicro/stmmac/Kconfig        |  11 +
>  drivers/net/ethernet/stmicro/stmmac/Makefile       |   1 +
>  drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c  | 300 +++++++++++++++++++++
>  9 files changed, 670 insertions(+), 2 deletions(-)
> ---
> base-commit: 568c4e4b646777f3373f383cc38864a3cd91bbb7
> change-id: 20240712-thead-dwmac-1d44c472bbd5
> 
> Best regards,
> -- 
> Drew Fustini <dfustini@...storrent.com>
> 
>