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diff --git a/meta-arm/meta-arm-bsp/documentation/n1sdp.md b/meta-arm/meta-arm-bsp/documentation/n1sdp.md new file mode 100644 index 0000000000..d8661a5c34 --- /dev/null +++ b/meta-arm/meta-arm-bsp/documentation/n1sdp.md @@ -0,0 +1,78 @@ +# N1SDP Development Platform Support in meta-arm-bsp + +## Overview +The N1SDP provides access to the Arm Neoverse N1 SoC. The N1SDP enables software development for key enterprise technology +and general Arm software development. The N1SDP consists of the N1 board containing the N1 SoC. +The N1 SoC contains two dual-core Arm Neoverse N1 processor clusters. + +The system demonstrates Arm technology in the context of Cache-Coherent Interconnect for Accelerators (CCIX) protocol by: + +- Running coherent traffic between the N1 SoC and an accelerator card. +- Coherent communication between two N1 SoCs. +- Enabling development of CCIX-enabled FPGA accelerators. + +Further information on N1SDP can be found at +https://community.arm.com/developer/tools-software/oss-platforms/w/docs/458/neoverse-n1-sdp + +## Configuration: +In the local.conf file, MACHINE should be set as follow: +MACHINE ?= "n1sdp" + +## Building +```bash$ bitbake core-image-minimal``` + +## Running + +# Update Firmware on SD card: + +(*) To use n1sdp board in single chip mode, flash: + n1sdp-board-firmware_primary.tar.gz firmware. + +(*) To use n1sdp board in multi chip mode, flash: + n1sdp-board-firmware_primary.tar.gz firmware to primary board, + n1sdp-board-firmware_secondary.tar.gz firmware to secondary board. + +The SD card content is generated during the build here: + tmp/deploy/images/n1sdp/n1sdp-board-firmware_primary.tar.gz + tmp/deploy/images/n1sdp/n1sdp-board-firmware_secondary.tar.gz + + +Its content must be written on the N1SDP firmware SD card. +To do this: +- insert the sdcard of the N1SDP in an SD card reader and mount it: +```bash$ sudo mount /dev/sdx1 /mnt``` +(replace sdx by the device of the SD card) + +- erase its content and put the new one: +```bash$ sudo rm -rf /mnt/*``` +```bash$ sudo tar --no-same-owner -xzf tmp/deploy/images/n1sdp/n1sdp-board-firmware_primary.tar.gz -C /mnt/``` +```bash$ sudo umount /mnt``` + +- reinsert the SD card in the N1SDP board + +Firmware tarball contains iofpga configuration files, scp and uefi binaries. + +**NOTE**: +If the N1SDP board was manufactured after November 2019 (Serial Number greater +than 36253xxx), a different PMIC firmware image must be used to prevent +potential damage to the board. More details can be found in [1]. +The `MB/HBI0316A/io_v123f.txt` file located in the microSD needs to be updated. +To update it, set the PMIC image (300k_8c2.bin) to be used in the newer models +by running the following commands on your host PC: + + $ sudo umount /dev/sdx1 + $ sudo mount /dev/sdx1 /mnt + $ sudo sed -i '/^MBPMIC: pms_0V85.bin/s/^/;/g' /mnt/MB/HBI0316A/io_v123f.txt + $ sudo sed -i '/^;MBPMIC: 300k_8c2.bin/s/^;//g' /mnt/MB/HBI0316A/io_v123f.txt + $ sudo umount /mnt + +# Prepare an USB hard drive: + +Grub boot partition is placed on first partition of the *.wic image, +Linux root file system is placed on the second partition of the *.wic image: + tmp/deploy/images/n1sdp/core-image-minimal-n1sdp.wic + +This *.wic image should be copied to USB stick with simple dd call. + + +[1]: https://community.arm.com/developer/tools-software/oss-platforms/w/docs/604/notice-potential-damage-to-n1sdp-boards-if-using-latest-firmware-release |