netdev - [PATCH net-next v4 0/3] Add the dwmac driver support for T-HEAD TH1520 SoC

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Message-Id: <20241020-th1520-dwmac-v4-0-c77acd33ccef@tenstorrent.com>
Date: Sun, 20 Oct 2024 19:35:59 -0700
From: Drew Fustini <dfustini@...storrent.com>
To: Andrew Lunn <andrew@...n.ch>, "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>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Emil Renner Berthing <emil.renner.berthing@...onical.com>, 
 Jisheng Zhang <jszhang@...nel.org>, Guo Ren <guoren@...nel.org>, 
 Fu Wei <wefu@...hat.com>, Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Andrew Lunn <andrew+netdev@...n.ch>, Drew Fustini <drew@...7.com>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-riscv@...ts.infradead.org, Drew Fustini <dfustini@...storrent.com>, 
 linux-stm32@...md-mailman.stormreply.com
Subject: [PATCH net-next v4 0/3] Add the dwmac driver support for T-HEAD
 TH1520 SoC

This series adds support for dwmac gigabit ethernet in the T-Head TH1520
RISC-V SoC along with dts patches to enable the ethernet ports on the
BeagleV Ahead and the LicheePi 4A.

The pinctrl-th1520 driver, pinctrl binding, and related dts patches are
in linux-next so there are no longer any prerequisite series that need
to be applied first.

Changes in v4:
 - Rebase on next for pinctrl dependency
 - Add 'net-next' prefix to subject per maintainer-netdev.rst
 - Add clocks, clock-names, interrupts and interrupt-names to binding
 - Simplify driver code by switching from regmap to regualar mmio

Changes in v3:
 - Rebase on v6.12-rc1
 - Remove thead,rx-internal-delay and thead,tx-internal-delay properties
 - Remove unneeded call to thead_dwmac_fix_speed() during probe
 - Fix filename for the yaml file in MAINTAINERS patch
 - Link: https://lore.kernel.org/linux-riscv/20240930-th1520-dwmac-v3-0-ae3e03c225ab@tenstorrent.com/

Changes in v2:
 - Drop the first patch as it is no longer needed due to upstream commit
   d01e0e98de31 ("dt-bindings: net: dwmac: Validate PBL for all IP-cores")
 - Rename compatible from "thead,th1520-dwmac" to "thead,th1520-gmac"
 - Add thead,rx-internal-delay and thead,tx-internal-delay properties
   and check that it does not exceed the maximum value
 - Convert from stmmac_dvr_probe() to devm_stmmac_pltfr_probe() and
   delete the .remove_new hook as it is no longer needed
 - Handle return value of regmap_write() in case it fails
 - Add phy reset delay properties to the BeagleV Ahead device tree
 - Link: https://lore.kernel.org/linux-riscv/20240926-th1520-dwmac-v2-0-f34f28ad1dc9@tenstorrent.com/

Changes in v1:
 - 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/20240713-thead-dwmac-v1-0-81f04480cd31@tenstorrent.com/

---
Emil Renner Berthing (1):
      riscv: dts: thead: Add TH1520 ethernet nodes

Jisheng Zhang (2):
      dt-bindings: net: Add T-HEAD dwmac support
      net: stmmac: Add glue layer for T-HEAD TH1520 SoC

 .../devicetree/bindings/net/snps,dwmac.yaml        |   1 +
 .../devicetree/bindings/net/thead,th1520-gmac.yaml | 115 +++++++++
 MAINTAINERS                                        |   2 +
 arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts |  91 +++++++
 .../boot/dts/thead/th1520-lichee-module-4a.dtsi    | 119 +++++++++
 arch/riscv/boot/dts/thead/th1520.dtsi              |  50 ++++
 drivers/net/ethernet/stmicro/stmmac/Kconfig        |  10 +
 drivers/net/ethernet/stmicro/stmmac/Makefile       |   1 +
 drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c  | 268 +++++++++++++++++++++
 9 files changed, 657 insertions(+)
---
base-commit: f2493655d2d3d5c6958ed996b043c821c23ae8d3
change-id: 20241020-th1520-dwmac-e14cc8f8427b

Best regards,
-- 
Drew Fustini <dfustini@...storrent.com>