mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 02:33:07 +00:00
88 lines
2.9 KiB
ReStructuredText
88 lines
2.9 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0+
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Introduction
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============
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DeveloperBox is a certified 96boards Enterprise Edition board. The board/SoC has: -
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* Socionext SC2A11 24-cores ARM Cortex-A53 on tbe Mini-ATX form factor motherboard
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* 4 DIMM slots (4GB DDR4-2400 UDIMM shipped by default)
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* 1 4xPCIe Gen2 slot and 2 1xPCIe Gen2 slots
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(1x slots are connected via PCIe bridge chip)
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* 4 USB-3.0 ports
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* 2 SATA ports
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* 1 GbE network port
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* 1 USB-UART serial port (micro USB)
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* 64MB SPI NOR Flash
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* 8GB eMMC Flash Storage
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* 96boards LS connector
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The DeveloperBox schematic can be found here: -
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https://www.96boards.org/documentation/enterprise/developerbox/hardware-docs/mzsc2am_v03_20180115_a.pdf
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And the other documents can be found here: -
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https://www.96boards.org/documentation/enterprise/developerbox/
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Currently, the U-Boot port supports: -
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* USB
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* eMMC
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* SPI-NOR
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* SATA
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* GbE
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The DeveloperBox boots the TF-A and EDK2 as a main bootloader by default.
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The DeveloperBox U-Boot port will replace the EDK2 and boot from TF-A as
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BL33, but no need to combine with it.
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Compile from source
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===================
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You can build U-Boot without any additinal source code.::
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cd u-boot
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export ARCH=arm64
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export CROSS_COMPILE=aarch64-linux-gnu-
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make SynQuacer_defconfig
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make -j `noproc`
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Then, expand the binary to 1MB for preparing flash.::
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cp u-boot.bin SPI_NOR_UBOOT.fd
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truncate -s 1M SPI_NOR_UBOOT.fd
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Installation
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============
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You can install the SNI_NOR_UBOOT.fd via NOR flash writer.
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Flashing the U-Boot image on DeveloperBox requires a 96boards UART mezzanine or other mezzanine which can connect to LS-UART0 port.
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Connect USB cable from host to the LS-UART0 and set DSW2-7 to ON, and turn the board on again. The flash writer program will be started automatically; don’t forget to turn the DSW2-7 off again after flashing.
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*!!CAUTION!! If you failed to write the U-Boot image on wrong address, the board can be bricked. See below page if you need to recover the bricked board. See the following page for more detail*
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https://www.96boards.org/documentation/enterprise/developerbox/installation/board-recovery.md.html
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When the serial flasher is running correctly is will show the following boot messages shown via LS-UART0::
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/*------------------------------------------*/
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/* SC2A11 "SynQuacer" series Flash writer */
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/* */
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/* Version: cd254ac */
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/* Build: 12/15/17 11:25:45 */
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/*------------------------------------------*/
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Command Input >
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Once the flasher tool is running we are ready flash the UEFI image::
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flash rawwrite 200000 100000
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>> Send SPI_NOR_UBOOT.fd via XMODEM (Control-A S in minicom) <<
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*!!NOTE!! The flasher command parameter is different from the command for board recovery. U-Boot uses the offset 200000 (2-five-0, 2M in hex) and the size 100000 (1-five-0, 1M in hex).*
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After transferring the SPI_NOR_UBOOT.fd, turn off the DSW2-7 and reset the board.
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