Difference between revisions of "Ezynq"
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==Decription== | ==Decription== | ||
| − | [https:// | + | [https://git.elphel.com/Elphel/ezynq Ezynq] project is started to create a bootloader for systems based on the Xilinx Zynq SoC without the inconvenience of the non-free tools and/or files. The goal is not just to "free" the code, but to provide users with the higher degree of flexibility in fine-tuning of the configuration parameters. |
====="Free" the code part===== | ====="Free" the code part===== | ||
| Line 10: | Line 10: | ||
<b>as of 2016/01/13...</b> | <b>as of 2016/01/13...</b> | ||
| − | * For a new board you still have to run an extra Xilinx program to generate ps7_init.c/h | + | * For a new board you still have to run an extra Xilinx program to generate ps7_init.c/h. |
| + | |||
| + | <b>as of 2016/03/18...</b> | ||
| + | * u-boot-xlnx master-next branch is removed long ago - so the link above is broken | ||
| + | |||
| + | <b>as of 2016/06/25...</b> | ||
| + | * ezynq depends on original u-boot instead of u-boot-xlnx | ||
==Supported boards== | ==Supported boards== | ||
| Line 40: | Line 46: | ||
==Output== | ==Output== | ||
* '''boot.bin''' (SPL) - loads u-boot.img, no FSBL needed. | * '''boot.bin''' (SPL) - loads u-boot.img, no FSBL needed. | ||
| − | * '''u-boot.img''' (u-boot image) | + | * '''u-boot-dtb.img''' (u-boot image) |
Boot: Copy them to SD card in order to boot from it. | Boot: Copy them to SD card in order to boot from it. | ||
| + | ==Build== | ||
| + | For instructions please follow [[Poky_2.0_manual|this guide]]. | ||
| + | <!-- | ||
==Install meta-toolchain (Kubuntu 13.04)== | ==Install meta-toolchain (Kubuntu 13.04)== | ||
* Build: | * Build: | ||
| Line 59: | Line 68: | ||
==Install Ezynq (Kubuntu 14.04)== | ==Install Ezynq (Kubuntu 14.04)== | ||
<font size='2'> | <font size='2'> | ||
| − | git clone https:// | + | git clone https://git.elphel.com/Elphel/ezynq.git |
cd ezynq | cd ezynq | ||
| − | ./install_uboot.sh | + | ./install_uboot.sh (edit the toolchain path) |
</font> | </font> | ||
| Line 80: | Line 89: | ||
** '''boot_head.bin''' - contains values for RBL register initialization | ** '''boot_head.bin''' - contains values for RBL register initialization | ||
** '''boot.bin''' - the SPL image | ** '''boot.bin''' - the SPL image | ||
| − | ** '''u-boot.img''' - the u-boot image | + | ** '''u-boot-dtb.img''' - the u-boot image |
** '''u-boot.html''' - configuration settings overview | ** '''u-boot.html''' - configuration settings overview | ||
** '''u-boot.map''' - the bootloader's memory map | ** '''u-boot.map''' - the bootloader's memory map | ||
** '''u-boot''' - ELF file | ** '''u-boot''' - ELF file | ||
| − | |||
==Develop (add support for new boards)== | ==Develop (add support for new boards)== | ||
| − | * Add a new board record to the list in the ''boards.cfg'' (or leave as is if the item already exists). | + | * (not needed anymore?) Add a new board record to the list in the ''boards.cfg'' (or leave as is if the item already exists). |
| + | * Create '''configs/zynq_microzed_defconfig''' file | ||
* Create a configuration file for the new board - use ''include/configs/zynq_microzed.h'' as a reference | * Create a configuration file for the new board - use ''include/configs/zynq_microzed.h'' as a reference | ||
* Edit (or create new for specific memory and chip) according to the board configuration the following files: | * Edit (or create new for specific memory and chip) according to the board configuration the following files: | ||
| Line 95: | Line 104: | ||
* Build: | * Build: | ||
<font size='2'>./makeuboot <new_board>_config</font> | <font size='2'>./makeuboot <new_board>_config</font> | ||
| − | |||
==Known issues== | ==Known issues== | ||
| Line 106: | Line 114: | ||
* Bitstream loading is not tested, current code does not enable level shifters - it may be more appropriate to do just before loading of the bitstream. | * Bitstream loading is not tested, current code does not enable level shifters - it may be more appropriate to do just before loading of the bitstream. | ||
* Write level training for DDR memory doesn't work in MicroZed and ZC706 | * Write level training for DDR memory doesn't work in MicroZed and ZC706 | ||
| + | --> | ||
Latest revision as of 13:46, 20 November 2017
Decription
Ezynq project is started to create a bootloader for systems based on the Xilinx Zynq SoC without the inconvenience of the non-free tools and/or files. The goal is not just to "free" the code, but to provide users with the higher degree of flexibility in fine-tuning of the configuration parameters.
"Free" the code part
as of 2014/02/23...
Ezynq addresses the potential legal problems with distribution of a product/software based on Zynq platform:
- FSBL is under Xilinx's copyright
- The current (2014/02/23) official SPL implementation in the u-boot-xlnx master-next 54fee227ef141214141a226efd17ae0516deaf32 branch is FSBL-less but it requires to use the files (ps7_init.c/h) that come under Xilinx's copyright which makes u-boot noncompliant with its GPL license.
as of 2016/01/13...
- For a new board you still have to run an extra Xilinx program to generate ps7_init.c/h.
as of 2016/03/18...
- u-boot-xlnx master-next branch is removed long ago - so the link above is broken
as of 2016/06/25...
- ezynq depends on original u-boot instead of u-boot-xlnx
Supported boards
| Board | Chip | Manufacturer | Tested? |
|---|---|---|---|
| MicroZed | Zynq 7Z010 | Avnet | Y |
| ZC706 | Zynq 7Z045 | Xilinx | N |
| ZedBoard | Zynq 7Z020 | Digilent/Avnet | N |
| 10393 | Zynq 7Z030 | Elphel | Y |
Output
- boot.bin (SPL) - loads u-boot.img, no FSBL needed.
- u-boot-dtb.img (u-boot image)
Boot: Copy them to SD card in order to boot from it.
Build
For instructions please follow this guide.
