推荐在 Ubuntu 18.04 系统环境下进行开发
环境部署
检查软件源列表
sudo apt update安装依赖包
sudo apt install -y repo git ssh make gcc libssl-dev liblz4-tool expect g++ patchelf gawk texinfo chrpath diffstat binfmt-support qemu-user-static live-build bison flex fakeroot cmake gcc-multilib g++-multilib unzip python-pip ncurses-dev python-pyelftools android-tools-adb vim net-tools tree minicom libssl-dev device-tree-compiler gcc-aarch64-linux-gnu mtools libusb-1.0-0-dev autoconf autotools-dev libsigsegv2 m4 intltool libdrm-dev curl sed binutils build-essential g+bash patch gzip bzip2 perl tar cpio python rsync file bc wget libncurses5 u-boot-tools cvs mercurial rsync openssh-client subversion expect liblz4-tool libtool keychain libncurses-dev parted libudev-dev
时间可能很久需要耐心等待，安装依赖这一步时间还算比较短，后续下载其他包会更慢。
下载及解压SDK包
下载及校验SDK
SDK包比较大，下载后（或者从其他本地设备传入）需要校验MD5md5sum RV1126_RV1109_LINUX_SDK_V2.2.4_20211019.tar.xzSDK 解压
gzip -d RV1126_RV1109_LINUX_SDK_V2.2.4_20211019.tar.xz
开始编译
进入SDK路径
cd RV1126_RV1109_LINUX_SDK_V2.2.4_20211019/选择ENV
source envsetup.sh指定编译版型
这里有两种方式可以，一种是直接指定，一种是可以选择
./build.sh BoardConfig-38x38-spi-nand.mk or ./build.sh lunch屏蔽repo的更新
这一步的原本作用是从ROCKCHIP更新最新的源码，当然这需要官方git的权限，个人开发者不太可能有，就算是有也不一定需要更新代码。具体操作，在build.sh文件的905行左右范围内，修改如下：#Generate patches #.repo/repo/repo forall -c \ # "$TOP_DIR/device/rockchip/common/gen_patches_body.sh" #Copy stubs #.repo/repo/repo manifest -r -o $STUB_PATH/manifest_${DATE}.xml开始编译
export FORCE_UNSAFE_CONFIGRUE=1 ./build.sh编译过程
这一步其实等待就行了，但是鉴于网络情况的问题，可能需要代理软件，具体内容不详细介绍，可以自行搜索，过程也很简单。下面介绍一下代理服务搭建完成后如何配置代理：
echo -e "export http_proxy=http://127.0.0.1:7890\nexport https_proxy=http://127.0.0.1:7890" >> ~/.bashrc然后重新打开一个终端
env | grep proxy然后还是提示有下载失败的报错，可以手动在报错信息里面找到下载的地址，然后手动下载，放在
buildroot/root目录下面，参考报错如下：2023-04-08T12:26:09 install -m 644 fcgiwrap.8 /root/RV1126_RV1109_LINUX_SDK_V2.2.4_20211019/buildroot/output/rockchip_rv1126_rv1109_spi_nand/target/usr/man/man8 2023-04-08T12:26:09 >>> libpng 1.6.37 Downloading 2023-04-08T12:26:09 --2023-04-08 12:26:09-- [http://downloads.sourceforge.net/project/libpng/libpng16/1.6.37/libpng-1.6.37.tar.xz](http://downloads.sourceforge.net/project/libpng/libpng16/1.6.37/libpng-1.6.37.tar.xz) 2023-04-08T12:26:19 Resolving [downloads.sourceforge.net](http://downloads.sourceforge.net) ([downloads.sourceforge.net](http://downloads.sourceforge.net))... failed: Temporary failure in name resolution. 2023-04-08T12:26:19 wget: unable to resolve host address '[downloads.sourceforge.net](http://downloads.sourceforge.net)' 2023-04-08T12:26:19 --2023-04-08 12:26:19-- [http://sources.buildroot.net/libpng-1.6.37.tar.xz](http://sources.buildroot.net/libpng-1.6.37.tar.xz) 2023-04-08T12:26:19 Resolving [sources.buildroot.net](http://sources.buildroot.net) ([sources.buildroot.net](http://sources.buildroot.net))... 2606:4700:20::ac43:4838, 2606:4700:20::681a:25, 2606:4700:20::681a:125, ... 2023-04-08T12:28:30 Connecting to [sources.buildroot.net](http://sources.buildroot.net) ([sources.buildroot.net](http://sources.buildroot.net))|2606:4700:20::ac43:4838|:80... failed: Connection timed out. 2023-04-08T12:30:41 Connecting to [sources.buildroot.net](http://sources.buildroot.net) ([sources.buildroot.net](http://sources.buildroot.net))|2606:4700:20::681a:25|:80... failed: Connection timed out. 2023-04-08T12:32:52 Connecting to [sources.buildroot.net](http://sources.buildroot.net) ([sources.buildroot.net](http://sources.buildroot.net))|2606:4700:20::681a:125|:80... failed: Connection timed out. 2023-04-08T12:32:52 Connecting to [sources.buildroot.net](http://sources.buildroot.net) ([sources.buildroot.net](http://sources.buildroot.net))|104.26.1.37|:80... connected. 2023-04-08T12:32:53 HTTP request sent, awaiting response... 404 Not Found 2023-04-08T12:32:53 2023-04-08 12:32:53 ERROR 404: Not Found. 2023-04-08T12:32:53 2023-04-08T12:32:53 package/pkg-generic.mk:138: recipe for target '/root/RV1126_RV1109_LINUX_SDK_V2.2.4_20211019/buildroot/output/rockchip_rv1126_rv1109_spi_nand/build/libpng-1.6.37/.stamp_downloaded' failed 2023-04-08T12:32:53 make[1]: *** [/root/RV1126_RV1109_LINUX_SDK_V2.2.4_20211019/buildroot/output/rockchip_rv1126_rv1109_spi_nand/build/libpng-1.6.37/.stamp_downloaded] Error 1 2023-04-08T12:32:53 /root/RV1126_RV1109_LINUX_SDK_V2.2.4_20211019/buildroot/output/rockchip_rv1126_rv1109_spi_nand/Makefile:16: recipe for target '_all' failed 2023-04-08T12:32:53 make: *** [_all] Error 2 Command exited with non-zero status 1 you take 1:54:42 to build builroot ERROR: Running build_buildroot failed! ERROR: exit code 1 from line 556: /usr/bin/time -f "you take %E to build builroot" $COMMON_DIR/mk-buildroot.sh $BOARD_CONFIG
然后重新开始编译即可。./build.sh
编译完成后的内容
- 编译输出的镜像和固件在
SDK包path/IMAGE/xxxxxx/ 编译后需要再次检查各电源域电压（版型选择与电源方案），编译后输出如下，在最后有各个电源域电压，需要和硬件原理图互相校验
====Build rockchip_rv1126_rv1109_spi_nand_recovery ok!==== pack recovery.img...fdt { kernel { ramdisk { resource { FIT description: U-Boot FIT source file for arm Created: Sat Apr 8 07:28:11 2023 Image 0 (fdt) Description: unavailable Created: Sat Apr 8 07:28:11 2023 Type: Flat Device Tree Compression: uncompressed Data Size: 87116 Bytes = 85.07 KiB = 0.08 MiB Architecture: ARM Load Address: 0xffffff00 Hash algo: sha256 Hash value: ac645a4aab328ccd693a8d47f497cc44d93894dbbcda20980a8f79aef8511040 Image 1 (kernel) Description: unavailable Created: Sat Apr 8 07:28:11 2023 Type: Kernel Image Compression: uncompressed Data Size: 6063104 Bytes = 5921.00 KiB = 5.78 MiB Architecture: ARM OS: Linux Load Address: 0xffffff01 Entry Point: 0xffffff01 Hash algo: sha256 Hash value: a131ceaefe3ff4b34ee1d103a745bd8f92624b985352821640493644feef38d3 Image 2 (ramdisk) Description: unavailable Created: Sat Apr 8 07:28:11 2023 Type: RAMDisk Image Compression: uncompressed Data Size: 7122341 Bytes = 6955.41 KiB = 6.79 MiB Architecture: ARM OS: Linux Load Address: 0xffffff02 Entry Point: unavailable Hash algo: sha256 Hash value: a64ef176083c7e5330b22a1a83de7985568df55da27e7d861ecba41ecedc508a Image 3 (resource) Description: unavailable Created: Sat Apr 8 07:28:11 2023 Type: Multi-File Image Compression: uncompressed Data Size: 125440 Bytes = 122.50 KiB = 0.12 MiB Hash algo: sha256 Hash value: e3cf14636f21f78252c6069dfe0c714b6f3d5d16f2ff2b1de77712e984a48b85 Default Configuration: 'conf' Configuration 0 (conf) Description: unavailable Kernel: kernel Init Ramdisk: ramdisk FDT: fdt done. you take 0:11.98 to build recovery Running build_recovery succeeded. Skipping build_ramboot for missing configs: RK_CFG_RAMBOOT. Running build_all succeeded. /usr/bin/fakeroot create rootfs.img...done. create parameter...done. /home/hulk/RV1126_RV1109_LINUX_SDK_V2.2.4_20211019/device/rockchip/rv1126_rv1109/parameter-fit-nand-256M.txt 0x00000800@0x00001000(vnvm),0x00002800@0x00001800(uboot),0x00004000@0x00004000(boot),0x0002A800@0x00008000(rootfs),0x00000400@0x00032800(misc),0x00008000@0x00032C00(recovery),-@0x0003AC00(userdata:grow) create recovery.img...done. create misc.img...done. create uboot.img...done. uboot fotmat type is fit, so ignore trust.img... create loader...done. create boot.img...done. Image: image in rockdev is ready Running build_firmware succeeded. Make update.img start to make update.img... Android Firmware Package Tool v1.66 ------ PACKAGE ------ Add file: ./package-file Add file: ./package-file done,offset=0x800,size=0x2fe,userspace=0x1 Add file: ./Image/MiniLoaderAll.bin Add file: ./Image/MiniLoaderAll.bin done,offset=0x1000,size=0x4294e,userspace=0x86 Add file: ./Image/parameter.txt Add file: ./Image/parameter.txt done,offset=0x44000,size=0x1d7,userspace=0x1 Add file: ./Image/uboot.img Add file: ./Image/uboot.img done,offset=0x44800,size=0x400000,userspace=0x800 Add file: ./Image/misc.img Add file: ./Image/misc.img done,offset=0x444800,size=0xc000,userspace=0x18 Add file: ./Image/boot.img Add file: ./Image/boot.img done,offset=0x450800,size=0x5fd000,userspace=0xbfa Add file: ./Image/recovery.img Add file: ./Image/recovery.img done,offset=0xa4d800,size=0xcc7e00,userspace=0x1990 Add file: ./Image/rootfs.img Add file: ./Image/rootfs.img done,offset=0x1715800,size=0x4d20000,userspace=0x9a40 Add CRC... Make firmware OK! ------ OK ------ **RKImageMaker ver 1.66** Generating new image, please wait... Writing head info... Writing boot file... Writing firmware... Generating MD5 data... MD5 data generated successfully! New image generated successfully! Making -RK1126 update.img OK. Running build_updateimg succeeded. Running build_save succeeded. PLEASE CHECK BOARD GPIO POWER DOMAIN CONFIGURATION !!!!! <<< ESPECIALLY Wi-Fi/Flash/Ethernet IO power domain >>> !!!!! Check Node [pmu_io_domains] in the file: /home/hulk/RV1126_RV1109_LINUX_SDK_V2.2.4_20211019/kernel/arch/arm/boot/dts/rv1109-38-v10-spi-nand.dts 请再次确认板级的电源域配置！！！！！！ <<< 特别是Wi-Fi，FLASH，以太网这几路IO电源的配置 >>> ！！！！！ 检查内核文件 /home/hulk/RV1126_RV1109_LINUX_SDK_V2.2.4_20211019/kernel/arch/arm/boot/dts/rv1109-38-v10-spi-nand.dts 的节点 [pmu_io_domains] pmuio0-supply regulator-min-microvolt = 3300mV regulator-max-microvolt = 3300mV pmuio1-supply regulator-min-microvolt = 3300mV regulator-max-microvolt = 3300mV vccio2-supply regulator-min-microvolt = 3300mV regulator-max-microvolt = 3300mV vccio4-supply regulator-min-microvolt = 1800mV regulator-max-microvolt = 1800mV vccio5-supply regulator-min-microvolt = 3300mV regulator-max-microvolt = 3300mV vccio6-supply regulator-min-microvolt = 3300mV regulator-max-microvolt = 3300mV vccio7-supply regulator-min-microvolt = 3300mV regulator-max-microvolt = 3300mV Running build_allsave succeeded.固件烧录
如果您编译出来的固件只为烧录uboot或者Boot等部分，可以选择单独烧录，也可以选择
update.img烧录完整部分，可以在Windows下使用瑞芯微开发工具烧录也可以在Linux下使用sudo ./rkflash.sh烧录。还需要注意需要板子连接后处于MASKROM模式。