linux-kernel - [PATCH v3 0/2] Add support for ICSSM Ethernet on AM57x, AM437x, and AM335x

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Message-ID: <20251113112049.676806-1-parvathi@couthit.com>
Date: Thu, 13 Nov 2025 16:46:01 +0530
From: Parvathi Pudi <parvathi@...thit.com>
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Subject: [PATCH v3 0/2] Add support for ICSSM Ethernet on AM57x, AM437x, and AM335x

Hi,

This series adds support for ICSSM Ethernet on Texas Instruments AM57x,
AM437x and AM335x platforms.

The AM57x and AM437x IDKs support two PRU-ICSS instances, each consisting
of two PRU cores, with each PRU-ICSS instance capable of handling two
Ethernet ports. For the AM57x platforms, the PRU-ICSS2 node has been added
to the am57xx-idk-common.dtsi, while for the AM437x platform, the PRU-ICSS1
node has been added to the am437x-idk-evm.dts.

The AM335x ICE features a single PRU-ICSS instance. A new device tree overlay
source file, am335x-icev2-prueth-overlay.dtso, has been introduced to define the
PRU-ICSS node for the AM335x platform.

This is v3 of the patch series [v1]. It addresses comments made on [v2].
This series is based on the latest next-20251113 linux-next.

Changes from v2 to v3 :

*) Addressed Andrew Davis's comment by placing PRUETH nodes in a new overlay file
am335x-icev2-prueth-overlay.dtso.
*) Rebased the series on latest linux-next.

Changes from v1 to v2 :

*) Addressed Andrew Lunn's comment on patch 1 of the series.
*) Addressed MD Danish Anwar comment on patch 1 of the series.
*) Rebased the series on latest linux-next.

[v1] https://lore.kernel.org/all/20251013125401.1435486-1-parvathi@couthit.com/
[v2] https://lore.kernel.org/all/20251103124820.1679167-1-parvathi@couthit.com/

Thanks and Regards,
Parvathi.

Roger Quadros (2):
  arm: dts: ti: Adds device tree nodes for PRU Cores, IEP and eCAP
    modules of PRU-ICSS2 Instance.
  arm: dts: ti: Adds support for AM335x and AM437x

 arch/arm/boot/dts/ti/omap/Makefile            |   5 +
 .../ti/omap/am335x-icev2-prueth-overlay.dtso  | 190 ++++++++++++++++++
 arch/arm/boot/dts/ti/omap/am33xx-l4.dtsi      |  11 +
 arch/arm/boot/dts/ti/omap/am4372.dtsi         |  11 +
 arch/arm/boot/dts/ti/omap/am437x-idk-evm.dts  | 137 ++++++++++++-
 arch/arm/boot/dts/ti/omap/am57-pruss.dtsi     |  11 +
 arch/arm/boot/dts/ti/omap/am571x-idk.dts      |   8 +-
 arch/arm/boot/dts/ti/omap/am572x-idk.dts      |  10 +-
 arch/arm/boot/dts/ti/omap/am574x-idk.dts      |  10 +-
 .../boot/dts/ti/omap/am57xx-idk-common.dtsi   |  61 ++++++
 10 files changed, 444 insertions(+), 10 deletions(-)
 create mode 100644 arch/arm/boot/dts/ti/omap/am335x-icev2-prueth-overlay.dtso

-- 
2.43.0