On 11 October 2017 at 00:52, <yohan.bo...@ioterop.com> wrote: >> Hello , >> >>I'm working on zybo board, with meta-xilinx (morty) + my own layer to >>use my own design. >> >> I wonder to have unique MAC address on each board. There is a register >> with unique MAC address on each zybo. My wish is to read this address >> before boot in u-boot, and so have this address set in u-boot, then in >> kernel.
>I assume you are referring to the I2C EEPROM attached via the PL? You will >need to at least connect this to the EMIO I2C of the PS to access it. This part is done yes. >> I'm not sure to know how to do that, I think I need to read it in fsbl >> with fsbl_hook ? >U-Boot can already read and setup the MAC from an I2C device, no need to deal >with FSBL. Very nice ! >The config to point at the I2C device is already configured by default for the >Zybo. >http://git.denx.de/?p=u-boot.git;a=blob;f=include/configs/zynq_zybo.h;h=808967cee331dd78380dc61e60f72c6643ea9e36;hb=HEAD#l17 >The code that does the ethaddr setup. >http://git.denx.de/?p=u-boot.git;a=blob;f=board/xilinx/zynq/board.c;h=90ef542458a9c7a19e64be1c031282fe5f5cf3f6;hb=HEAD#l119 Ok, where can I call this function ? I'm not sure to know exactly how is working u-boot :s >> So I'll have a fsbl.elf, but is there an easy way to add this .elf to >> boot.bin set in meta-xilinx ? >No, not in meta-xilinx. The bootgen tool which is required for FSBL images is >only available from the Xilinx tools, and only meta-xilinx-tools integrates >with them. Ok. >> What I understood from meta-xilinx is : we include the u-boot.elf >> through SPL_BINARY into boot.bin ? How can I add also my fsbl.elf ? >In meta-xilinx the generated boot.bin only contains U-Boot SPL (full U-Boot is >loaded from the boot device from the u-boot.img file). Ok. >> I’ve also seen this topic : >> https://lists.yoctoproject.org/pipermail/meta-xilinx/2017-April/002702 >> .html >> >> But it seems it uses meta-xilinx-tools layer. Does I really need to >> use it, or there is an other way, I mean, other way than generated the >> full boot.bin from SDK (is this way correct ?) ? >If you need FSBL then you will need meta-xilinx-tools, or you will need to do >it manually. Understood. So what FSBL is for ? >> Then, once I have this MAC address, how can I set it into uboot, then >> into kernel ? >See above regarding U-Boot loading it from I2C. >Regards, >Nathan Regards, Yohan -- _______________________________________________ meta-xilinx mailing list meta-xilinx@yoctoproject.org https://lists.yoctoproject.org/listinfo/meta-xilinx
