linux-kernel - [PATCH v2 0/5] Reserve Timer Nodes to avoid clash with Remoteproc

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Message-ID: <20240814104151.2038457-1-b-padhi@ti.com>
Date: Wed, 14 Aug 2024 16:11:46 +0530
From: Beleswar Padhi <b-padhi@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>
CC: <u-kumar1@...com>, <tony@...mide.com>, <g-vlaev@...com>, <afd@...com>,
        <hnagalla@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 0/5] Reserve Timer Nodes to avoid clash with Remoteproc

The remoteproc firmware like of R5F and DSPs in the MAIN voltage domain
use timers. At the same time, if Linux probes the timers, some
instability is observed while booting remote cores. Therefore, change
the status of the timer nodes to "reserved" to avoid any clash. 

This change is already incorporated for timer nodes in the MCU voltage
domain.

v2: Changelog:
- Split the changes into individual patches for each SoC to tag the
  correct offending commit for "Fixes:" tag.

* Udit
1) Add the correct clashing timer nodes for J7200 SoC.
2) Port these changes to board level dts files instead of SoC level dtsi files.

Link to v1:
https://lore.kernel.org/all/20240607105559.771080-1-b-padhi@ti.com/

Beleswar Padhi (5):
  arm64: dts: ti: k3-j7200: Change timer nodes status to reserved
  arm64: dts: ti: k3-j721e: Change timer nodes status to reserved
  arm64: dts: ti: k3-j721s2: Change timer nodes status to reserved
  arm64: dts: ti: k3-j784s4: Change timer nodes status to reserved
  arm64: dts: ti: k3-j722s: Change timer nodes status to reserved

 .../dts/ti/k3-j7200-common-proc-board.dts     | 13 ++++++
 .../dts/ti/k3-j721e-common-proc-board.dts     | 29 +++++++++++++
 .../dts/ti/k3-j721s2-common-proc-board.dts    | 25 +++++++++++
 arch/arm64/boot/dts/ti/k3-j722s-evm.dts       | 13 ++++++
 arch/arm64/boot/dts/ti/k3-j784s4-evm.dts      | 41 +++++++++++++++++++
 5 files changed, 121 insertions(+)

-- 
2.34.1