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+.. SPDX-License-Identifier: GPL-2.0+
+
+RK3399-Q7 Puma
+==============
+
+The RK3399-Q7 (Puma) is a system-on-module featuring the Rockchip
+RK3399 in a Qseven-compatible form-factor.
+
+RK3399-Q7 features:
+
+ * CPU: ARMv8 64bit Big-Little architecture,
+
+   * Big: dual-core Cortex-A72
+   * Little: quad-core Cortex-A53
+   * IRAM: 200KB
+   * DRAM: 4GB-128MB dual-channel
+
+ * eMMC: onboard eMMC
+ * SD/MMC
+ * GbE (onboard Micrel KSZ9031) Gigabit ethernet PHY
+ * USB:
+
+   * USB3.0 dual role port
+   * 2x USB3.0 host, 1x USB2.0 host via onboard USB3.0 hub
+
+ * Display: HDMI/eDP/MIPI
+ * Camera: 2x CSI (one on the edge connector, one on the Q7 specified CSI ZIF)
+ * NOR Flash: onboard SPI NOR
+ * Companion Controller: onboard additional Cortex-M0 microcontroller
+   * RTC
+   * fan controller
+   * CAN
+
+Here is the step-by-step to boot to U-Boot on RK3399-Q7 from Theobroma Systems.
+
+Get the Source and build ATF binary
+-----------------------------------
+
+.. prompt:: bash
+
+   git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git
+   cd trusted-firmware-a
+   make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31
+   export BL31=$PWD/build/rk3399/release/bl31/bl31.elf
+
+Compile the U-Boot
+------------------
+
+.. prompt:: bash
+
+   cd ../u-boot
+   make CROSS_COMPILE=aarch64-linux-gnu- puma-rk3399_defconfig all
+
+This will build ``u-boot-rockchip.bin`` which can be written to an MMC device
+(eMMC or SD card), and ``u-boot-rockchip-spi.bin`` which can be written to the
+SPI-NOR flash.
+
+Flash the image
+---------------
+
+Copy ``u-boot-rockchip.bin`` to offset 32k for SD/eMMC.
+Copy ``u-boot-rockchip-spi.bin`` to offset 0 for NOR-flash.
+
+SD-Card
+~~~~~~~
+
+.. prompt:: bash
+
+   dd if=u-boot-rockchip.bin of=/dev/sdX seek=64
+
+.. note::
+
+   Replace ``/dev/sdX`` to match your SD card kernel device.
+
+eMMC
+~~~~
+
+``rkdeveloptool`` allows to flash the on-board eMMC via the USB OTG interface
+with help of the Rockchip loader binary.
+
+To enter the USB flashing mode on Haikou baseboard, remove any SD card, insert a
+micro-USB cable in the ``Q7 USB P1`` connector (P8), move ``SW5`` switch into
+``BIOS Disable`` mode, power cycle or reset the board and move ``SW5`` switch
+back to ``Normal Boot`` mode. A new USB device should have appeared on your PC
+(check with ``lsusb -d 2207:330c``).
+
+To flash U-Boot on the eMMC with ``rkdeveloptool``:
+
+.. prompt:: bash
+
+   git clone https://github.com/rockchip-linux/rkdeveloptool
+   cd rkdeveloptool
+   autoreconf -i && CPPFLAGS=-Wno-format-truncation ./configure && make
+   git clone https://github.com/rockchip-linux/rkbin.git
+   cd rkbin
+   ./tools/boot_merger RKBOOT/RK3399MINIALL.ini
+   cd ..
+   ./rkdeveloptool db rkbin/rk3399_loader_v1.30.130.bin
+   ./rkdeveloptool wl 64 ../u-boot-rockchip.bin
+
+NOR-Flash
+~~~~~~~~~
+
+``rkdeveloptool`` allows to flash the on-board SPI via the USB OTG interface with
+help of the Rockchip loader binary.
+
+To enter the USB flashing mode on Haikou baseboard, remove any SD card, insert a
+micro-USB cable in the ``Q7 USB P1`` connector (P8), move ``SW5`` switch into
+``BIOS Disable`` mode, power cycle or reset the board and move ``SW5`` switch
+back to ``Normal Boot`` mode. A new USB device should have appeared on your PC
+(check with ``lsusb -d 2207:330c``).
+
+To flash U-Boot on the SPI with ``rkdeveloptool``:
+
+.. prompt:: bash
+
+   git clone https://github.com/rockchip-linux/rkdeveloptool
+   cd rkdeveloptool
+   autoreconf -i && CPPFLAGS=-Wno-format-truncation ./configure && make
+   git clone https://github.com/rockchip-linux/rkbin.git
+   cd rkbin
+   ./tools/boot_merger RKBOOT/RK3399MINIALL_SPINOR.ini
+   cd ..
+   ./rkdeveloptool db rkbin/rk3399_loader_spinor_v1.30.114.bin
+   ./rkdeveloptool ef
+   ./rkdeveloptool wl 0 ../u-boot-rockchip-spi.bin