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The Qnap TS433 is a 4-bay NAS based around the RK3568. Two SATA bays are connected to the RK3568's own SATA controllers while the other two are connected to a JMicron SATA controller living on the PCIe bus. It provides one 2.5Gb and one 1Gb ethernet port as well as 3 usb ports. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
92 lines
2.7 KiB
ReStructuredText
92 lines
2.7 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for Qnap TS433 Devices
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=================================
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This allows U-Boot to boot the Qnap TS433 NAS
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Preparing the serial
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--------------------
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Qnap devices run their serial console with a 115200 baudrate. As the
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binary DDR-init and maskrom-downloader expect a 1500000 rate, it is
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necessary to adapt the binaries if their output is needed.
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This can be done with a binary provided in the rkbin repository.
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First the ddrbin_param.txt in the rkbin repo needs to be modified:
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.. code-block:: bash
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diff --git a/tools/ddrbin_param.txt b/tools/ddrbin_param.txt
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index 0dfdd318..82ade7e7 100644
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--- a/tools/ddrbin_param.txt
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+++ b/tools/ddrbin_param.txt
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@@ -11,7 +11,7 @@ lp5_freq=
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uart id=
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uart iomux=
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-uart baudrate=
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+uart baudrate=115200
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sr_idle=
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pd_idle=
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And after that the ddrbin_tool binary can be used to modify apply this
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modification and also a new maskrom downloader can be build:
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.. code-block:: bash
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$ tools/ddrbin_tool rk3568 tools/ddrbin_param.txt bin/rk35/rk3568_ddr_1560MHz_v1.21.bin
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$ tools/boot_merger RKBOOT/RK3568MINIALL.ini
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Building U-Boot
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---------------
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.. code-block:: bash
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$ export CROSS_COMPILE=aarch64-linux-gnu-
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$ export BL31=../rkbin/bin/rk35/rk3568_bl31_v1.34.elf
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$ export ROCKCHIP_TPL=../rkbin/bin/rk35/rk3568_ddr_1056MHz_v1.13.bin
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$ make qnap-ts433-rk3568_defconfig
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$ make
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This will build ``u-boot-rockchip.bin`` which can be written to the
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on-board eMMC.
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Image installation
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------------------
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The Qnap thankfully provides an easily accessible serial header as well as
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a very user-friendly jumper-header to bring the device into maskrom mode.
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To access both, the drive trays need to be removed. Looking at the board,
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through the upper cutout of the metal frame the white 4-port serial-header
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can be seen next to a barcode sticker. It's pinout is as follows:
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.. code-block:: none
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,_ _.
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|1234| 1=TX 2=VCC
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`----' 3=RX 4=GND
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Directly below it, the mentioned 2-pin jumper header can be seen.
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To write your u-boot to the device, it needs to be powered off first. Then
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a jumper or suitable cable needs to be used to connect the two pins of the
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maskrom header. Turning on the device now will start it in maskrom mode.
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It is important that the jumper gets removed after that stop and before
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actually trying to write to the emmc.
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The front usb-port needs to be connected to the host with an USB-A-to-A
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cable to allow flashing.
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The flashing itself is done via rkdeveloptool, which can be found for
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example as package of that name in Debian-based distributions:
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.. code-block:: bash
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$ rkdeveloptool db rk356x_spl_loader_v1.21.113.bin
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$ rkdeveloptool wl 64 u-boot-rockchip.bin
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