linux-kernel - Re: [PATCH 0/6] arm64: Initial support Texas Instrument's J721E Platform

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Message-ID: <6ae8cfc9-5bf0-14ec-109f-bafbf2cb7eac@ti.com>
Date:   Tue, 18 Jun 2019 17:41:56 +0300
From:   Tero Kristo <t-kristo@...com>
To:     Nishanth Menon <nm@...com>, Arnd Bergmann <arnd@...db.de>,
        Olof Johansson <olof@...om.net>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Will Deacon <will.deacon@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>
CC:     <linux-serial@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>
Subject: Re: [PATCH 0/6] arm64: Initial support Texas Instrument's J721E
 Platform

On 22/05/2019 19:19, Nishanth Menon wrote:
> Hi,
> 
> This series adds support for the latest new SoC, J721E, from Texas Instruments.
> 
> The series is an based off v5.2-rc1 and has the following driver
> dependencies for a successful boot:
> 1.  https://lore.kernel.org/lkml/20190429131533.25122-1-afd@ti.com (for newer firmware)
> 2.  https://lore.kernel.org/linux-arm-kernel/1555093342-428-1-git-send-email-t-kristo@ti.com/
>      - Clock IDs cannot be guarenteed to be sequential, has to be
>        discovered from hardware description in dts
>      - Clock IDs on this massive chip also exceeds 255, so, the support
>        for the same is expected in follow on patches.
> 
> The full series is available here (including dependencies):
> https://github.com/nmenon/linux-2.6-playground/commits/upstream/v5.2-rc1/j7es-base-v1
> 
> Boot Log: https://pastebin.ubuntu.com/p/j3NtfF8FQr/
> 
> NOTE:
>   - If Greg is ok, we can pick up the uart compatibility via the k3 tree,
>     else, I can spawn it off the series.

Assuming here that Greg is ok with me picking up patch #2.

>   - I will resubmit patch 6 (defconfig update) separately once again once
>     patches 1-5 hit the next tree or for 5.3-rc2 which ever is convenient.
> 

Seems it should be possible just to queue up everything, no need to 
repost stuff.

That said, queuing the whole series towards 5.3 with the mentioned fixes.

-Tero

> The J721E SoC belongs to the K3 Multicore SoC architecture platform
> for automotive applications such as infotainment, cluster, premium
> Audio, Gateway, industrial and a range of broad market applications.
> This SoC is designed around reducing the system cost by eliminating
> the need of an external system MCU and is targeted towards ASIL-B/C
> certification/requirements in addition to allowing complex software
> and system use-cases.
> 
> The Linux development follows AM654 in most of the configurations, but
> adds new capabilities (details in follow on patches).
> 
> See J721E Technical Reference Manual (SPRUIL1, May 2019)
> for further details: http://www.ti.com/lit/pdf/spruil1
> 
> Nishanth Menon (6):
>    dt-bindings: arm: ti: Add bindings for J721E SoC
>    dt-bindings: serial: 8250_omap: Add compatible for J721E UART
>      controller
>    arm64: dts: ti: Add Support for J721E SoC
>    soc: ti: Add Support for J721E SoC config option
>    arm64: dts: ti: Add support for J721E Common Processor Board
>    arm64: defconfig: Enable TI's J721E SoC platform
> 
>   .../devicetree/bindings/arm/ti/k3.txt         |   3 +
>   .../bindings/serial/omap_serial.txt           |   1 +
>   arch/arm64/boot/dts/ti/Makefile               |   2 +
>   .../dts/ti/k3-j721e-common-proc-board.dts     |  50 +++++
>   arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     | 202 ++++++++++++++++++
>   .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      |  72 +++++++
>   arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi   |  29 +++
>   arch/arm64/boot/dts/ti/k3-j721e.dtsi          | 176 +++++++++++++++
>   arch/arm64/configs/defconfig                  |   1 +
>   drivers/soc/ti/Kconfig                        |   5 +
>   10 files changed, 541 insertions(+)
>   create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
>   create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
>   create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
>   create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
>   create mode 100644 arch/arm64/boot/dts/ti/k3-j721e.dtsi
> 

--
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