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diff --git a/board/altera/readme.txt b/board/altera/readme.txt deleted file mode 100644 index 1894a7907d..0000000000 --- a/board/altera/readme.txt +++ /dev/null @@ -1,165 +0,0 @@ -SoCkit, SoC Development Kit - -Intro -===== - -This is the buildroot board support for the Arrow SoCkit Evaluation Board -and the Altera Cyclone 5 Development Board. - -A good source of information for Arrow SoCkit: -http://www.rocketboards.org/foswiki/Documentation/ArrowSoCKitEvaluationBoard - -More information about SoC DK: -https://www.altera.com/products/boards_and_kits/dev-kits/altera/kit-cyclone-v-soc.html - -How it works -============ - -Boot process: -------------- - -In summary, the bootloader has multiple stages, an hardcoded boot routine is -loaded from an on-chip ROM. - - - That first stage is scanning the SD card's partition table to find - partition having the 0xA2 type. - - This partition is expected to contain a boot image on its first 60 Kb, - because u-boot is bigger, we must fill it with a preloader (u-boot-spl) - which will load the u-boot image. - - Then the u-boot image will load the Linux kernel. - -A good source of information for the boot process is: -http://xillybus.com/tutorials/u-boot-image-altera-soc - -Note for the SPL: -The SPL generated by the u-boot from Rocketboards doesn't seems to work, -therefore we provide a patch for {uboot-PKG}/board/altera/socfpga_cyclone5/* -based on the files generated with the Altera example design. - -For more information about this files please look at: -http://www.rocketboards.org/foswiki/Documentation/PreloaderUbootCustomization#Common_Source_Code - -How to build it -=============== - -Configure Buildroot -------------------- - -The altera_sockit_defconfig configuration is a minimal configuration with -all that is required to bring the SoCkit: - - $ make altera_sockit_defconfig - -and for the SoC Development Board: - - $ make altera_sockdk_defconfig - -Build everything ----------------- - -Note: you will need to have access to the network, since Buildroot will -download the packages' sources. - - $ make - -Result of the build -------------------- - -After building, you should obtain this tree: - - output/images/ - ├── rootfs.ext2 - ├── rootfs.ext3 -> rootfs.ext2 - ├── rootfs.tar - ├── socfpga_cyclone5_sockit.dtb or socfpga_cyclone5_socdk.dtb - ├── socfpga.dtb - ├── u-boot.img - ├── u-boot-spl.bin - └── uImage - - -Signing the Preloader ---------------------- - -*** BEWARE **** -The u-boot-spl.bin must be signed using the Altera's tool "mkpimage". -This tool comes as a part of the Altera development environnment (SoC EDS). -A fork of this tool have been done by Maxime Hadjinlian and can be found here: -https://github.com/maximeh/mkpimage - -Remember that without signing the u-boot-spl.bin, the board will not boot !!! - - $ mkpimage u-boot-spl.bin -o u-boot-spl-signed.bin - -Prepare your SDcard -=================== - -A good source of information for the partitioning process is: -http://www.rocketboards.org/foswiki/view/Projects/SoCKitLinaroLinuxDesktop#Partition_the_SD_Card - -Create the SDcard partition table ----------------------------------- - -Determine the device associated to the SD card: - - $ cat /proc/partitions - -let's assume it is /dev/mmcblk0: - - $ sudo fdisk /dev/mmcblk0 - -Delete all previous partitions with 'd' then create the new partition table, -using these options, pressing enter after each one: - - * n p 1 9000000 +20480K t 1 b - * n p 2 4096 +4496384K t 83 - * n p 3 2048 +1024K t 3 a2 - -Using the 'p' option, the SD card's partition must look like this: - -Device Boot Start End Blocks Id System -/dev/mmcblk0p1 9000000 9041919 20960 b W95 FAT32 -/dev/mmcblk0p2 4096 8996863 4496384 83 Linux -/dev/mmcblk0p3 2048 4095 1024 a2 Unknown - -Then write the partition table using 'w' and exit. - -Make partition one a DOS partition: - - $ sudo mkdosfs /dev/mmcblk0p1 - -Install the binaries to the SDcard ----------------------------------- - -Remember your binaries are located in output/images/, go inside that directory: - - $ cd output/images - -The partition with type a2 is the partition scan by the first bootloader stage -in the SoCkit ROM to find the next bootloader stage so we must write the signed -preloader and the u-boot binaries in that partition: - - $ sudo dd if=u-boot-spl-signed.bin of=/dev/mmcblk0p3 bs=64k seek=0 - $ sudo dd if=u-boot.img of=/dev/mmcblk0p3 bs=64k seek=4 - -Copy the Linux kernel and its Device tree: - - $ sudo mkdir /mnt/sdcard - $ sudo mount /dev/mmcblk0p1 /mnt/sdcard - $ sudo cp socfpga.dtb uImage /mnt/sdcard - $ sudo umount /mnt/sdcard - -Copy the rootfs: - - $ sudo dd if=rootfs.ext2 of=/dev/mmcblk0p2 bs=64k - $ sudo sync - -It's Done! - -Finish -====== - -Eject your SDcard, insert it in your SoCkit, and power it up. - -if you want a serial console, you can plug a micro B USB cable on the USB-UART -port, the serial port config to used is 57600/8-N-1. |
