U-Boot ã³ãã³ãã®ä½¿ç¨ ï¬ ã³ãã³ãã©ã¤ã³ uboot ã®ã³ãã³ãã©ã¤ã³ã¯ã BusyBox ã® Hush ã uboot ç¨ã«ãããã®ã§ãã ã¹ã¯ãªãããä½ æããäºãã§ãã¾ãã ç°¡åãªã¹ã¯ãªããã¯ç°å¢å¤æ°ã«è¨å®ãã¦ä¿åãã¦ããã è¨å®ããæå åã run ã³ãã³ãã§å®è¡ãã¾ãã ï¬ å¤æ° ã·ã§ã«å¤æ°ã¨ç°å¢å¤æ°ãããã¾ãã ç°å¢å¤æ°ã¯ã saveenv ã³ãã³ãã§ãã©ãã·ã¥ã«ä¿åå¯è½ã§ããã ã·ã§ã«å¤æ°ã¯ä¿åããã¾ã ãã ç°å¢å¤æ°ã®è¨å®ã¯ setenv ã³ãã³ãã使ãã¾ãã setenv name value ã·ã§ã«å¤æ°ã¸ã®è¨ å®ã¯ãname=value ã¨ãã¾ãã å¤æ°ãåç §ããã«ã¯ã${name} ãããã¯ã$name ã¨ãã¾ãã ç°å¢å¤æ°ã¯ã ã·ã§ã«å¤æ°ããåªå ããã åãå称ã®ã·ã§ã«å¤æ°ã¯ä½¿ããªããªãã¾ãã ç°å¢å¤ æ°ã«è¨å®ããã³ãã³ã㯠run ã³ãã³ãã§å®è¡ã§ãã¾ã
The U-Boot Documentationï This is the top level of the U-Bootâs documentation tree. U-Boot documentation, like the U-Boot itself, is very much a work in progress; that is especially true as we work to integrate our many scattered documents into a coherent whole. Please note that improvements to the documentation are welcome; join the U-Boot list at http://lists.denx.de if you want to help out. Use
æ¬ç« ã§ã¯ã Armadillo-640ã®ãã¼ããã¼ãã¼ã§ãã U-Boot ã®èµ·åã¢ã¼ããå©ç¨ãããã¨ãã§ããæ©è½ã«ã¤ãã¦èª¬æãã¾ãã Armadillo-200 ã·ãªã¼ãºã400ã·ãªã¼ãºã§ã¯ããã¼ããã¼ãã¼ã« Hermit ã使ç¨ãã¦ãã¾ããã Armadillo-640 ã§ã¯ãä»ã®æè¿ã® Armadillo ã·ãªã¼ãº (Armadillo-IoT ãªã©) ã«åããU-Boot ãæ¡ç¨ãã¦ãã¾ãã U-Boot 㯠Open Source ã§éçºããã¦ãããã¼ããã¼ãã¼ã§ãç¹ã«çµã¿è¾¼ã¿æ©å¨ã«è¯ã使ããã¦ãã¾ãã U-Boot ã®ããã¥ã¢ã«ã¯ã Denx Software Engineering ã® U-Boot ã®ãã¼ã¸ (https://www.denx.de/wiki/U-Boot/WebHome) ããã¢ã¯ã»ã¹ã§ãã¾ãã U-Boot ã¯ãã¼ããã¼ãã¼ãªã®ã§ãOS ãèµ·åããã®ãä»
ãã¡ã¤ã«ã®èª¬æ ZYBO tareget/zynq-zybo/ boot/ boot.bin : Stage 1 Boot Loader(U-boot-spl) design_1_wrapper.bit : FPGA configuration file (Xilinx Bitstream Format) u-boot.img : Stage 2 Boot Loader(U-boot) uEnv.txt : U-Boot environment variables for linux boot zImage-4.14.34-armv7-fpga : Linux Kernel Image (use Git LFS) devicetree-4.14.34-zynq-zybo.dtb : Linux Device Tree Blob devicetree-4.14.34-zynq-zybo.dt
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