linux-kernel - [PATCH v2 0/4] arm64: dts: ti: j721e: Add HyperFlash support

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Date:   Sat, 13 May 2023 18:03:09 +0530
From:   Vaishnav Achath <vaishnav.a@...com>
To:     <vigneshr@...com>, <nm@...com>, <kristo@...nel.org>,
        <conor+dt@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <afd@...com>
CC:     <vaishnav.a@...com>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <u-kumar1@...com>
Subject: [PATCH v2 0/4] arm64: dts: ti: j721e: Add HyperFlash support

This series adds hyperflash support for J721E. J721E SoC has HyperBus
and OSPI controller muxed within the FSS subsystem and the J721E SoM
has a 64 MiB S28 OSPI flash and a 64 MiB Hyperflash present which is
muxed externally also.

Changelog:
V1->V2:
 * Address feedback in similar series:
 https://lore.kernel.org/all/feddcd03-1848-b667-6a38-ae7c0f6ff160@ti.com/
 * Add partitions information in Hyperflash node.

V1: https://lore.kernel.org/all/20230505141407.15134-1-vaishnav.a@ti.com/

* Patch 1/4 adds the hyperbus controller nodes and fixes DT compile
warnings.
* Patch 2/4 adds the hyperflash support in the SoM DTS.
* Patch 3 and 4/4 enables the pinmux for external mux that selects
between hyperflash or OSPI NOR flash, this is done for J7200 and 
J721E platforms since it is required in U-Boot and helps keep the
DT in sync.

Patch 1/4 depends on the following patch:
https://lore.kernel.org/all/20230424184810.29453-1-afd@ti.com/

Patch 3 depends on the below fix for pinmux offsets in J7200:
https://lore.kernel.org/all/20230419040007.3022780-2-u-kumar1@ti.com/

Bootlog and basic hyperflash erase-write-read test:
https://gist.github.com/vaishnavachath/be652108f3e360f1e2d41b499df844ef

Thanks and Regards,
Vaishnav

Vaishnav Achath (4):
  arm64: dts: ti: k3-j721e-mcu-wakeup: Add HyperBus node
  arm64: dts: ti: k3-j721e-som-p0: Add HyperFlash node
  arm64: dts: ti: k3-j7200-common-proc-board: Add OSPI/Hyperflash select
    pinmux
  arm64: dts: ti: k3-j721e-common-proc-board: Add OSPI/Hyperflash select
    pinmux

 .../dts/ti/k3-j7200-common-proc-board.dts     | 11 +++
 .../dts/ti/k3-j721e-common-proc-board.dts     | 11 +++
 .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      | 21 ++++++
 arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi   | 71 +++++++++++++++++++
 4 files changed, 114 insertions(+)

-- 
2.17.1