linux-kernel - [PATCH v1 0/7] Add Tegra QSPI driver

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Message-ID: <1606857168-5839-1-git-send-email-skomatineni@nvidia.com>
Date:   Tue, 1 Dec 2020 13:12:41 -0800
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <broonie@...nel.org>, <robh+dt@...nel.org>
CC:     <skomatineni@...dia.com>, <linux-spi@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: [PATCH v1 0/7] Add Tegra QSPI driver

This series adds Tegra210, Tegra186, and Tehra194 QSPI driver and
enables QSPI on Jetson Nano and Jetson Xavier NX.

QSPI controller is available on Tegra210, Tegra186 and Tegra194.

Tegra186 and Tegra194 has additional feature of combined sequence mode
where command, address and data can all be transferred in a single transfer.

Combined sequence mode is useful with DMA mode transfer.

This series does not have combined sequence mode feature as Tegra186/Tegra194
GPCDMA driver is not upstreamed yet.

This series includes
- dt-binding document
- QSPI driver for Tegra210/Tegra186/Tegra194
- Enables QSPI on Jetson Nano and Jetson Xavier NX.

Sowjanya Komatineni (7):
  MAINTAINERS: Add Tegra QSPI driver section
  dt-bindings: spi: Add Tegra QSPI device tree binding
  spi: qspi-tegra: Add support for Tegra210 QSPI controller
  spi: qspi-tegra: Add Tegra186 and Tegra194 QSPI compatibles
  arm64: tegra: Enable QSPI on Jetson Nano
  arm64: tegra: Add QSPI nodes on Tegra194
  arm64: tegra: Enable QSPI on Jetson Xavier NX

 .../devicetree/bindings/spi/nvidia,tegra-qspi.yaml |   77 ++
 MAINTAINERS                                        |    8 +
 .../dts/nvidia/tegra194-p3509-0000+p3668-0000.dts  |   12 +
 arch/arm64/boot/dts/nvidia/tegra194.dtsi           |   26 +
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts |   12 +
 drivers/spi/Kconfig                                |    9 +
 drivers/spi/Makefile                               |    1 +
 drivers/spi/qspi-tegra.c                           | 1420 ++++++++++++++++++++
 8 files changed, 1565 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/nvidia,tegra-qspi.yaml
 create mode 100644 drivers/spi/qspi-tegra.c

-- 
2.7.4