# meta-loongarch **Repository Path**: otomam/meta-loongarch ## Basic Information - **Project Name**: meta-loongarch - **Description**: No description available - **Primary Language**: Unknown - **License**: MIT - **Default Branch**: walnascar - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2025-09-28 - **Last Updated**: 2025-11-29 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README # meta-loongarch `meta-loongarch` 是用于loongarch架构的yocto bsp层，用于支持基于2k0300的99pai构建工程 ## 构建流程 ### 1.准备环境和源码 基于Ubuntu24.04虚拟机构建，参考[yocto教程](https://docs.yoctoproject.org/brief-yoctoprojectqs/index.html)安装需要的包，**使用非root用户编译** ``` shell sudo apt-get install build-essential chrpath cpio debianutils diffstat file gawk gcc git iputils-ping libacl1 liblz4-tool locales python3 python3-git python3-jinja2 python3-pexpect python3-pip python3-subunit socat texinfo unzip wget xz-utils zstd ``` #### a.克隆loongarch层 ``` shell git clone https://github.com/otomam/meta-loongarch.git -b walnascar ``` #### b.克隆poky ``` shell git clone https://github.com/yoctoproject/poky.git -b walnascar ``` ### 2.构建 #### a.配置构建环境 ``` shell . meta-loongarch/setup ``` #### b.构建镜像 ``` shell bitbake core-image-minimal ``` #### c.启动 ``` shell # tftp启动fitimage（build/tmp/deploy/images/loongson-2k0300-99pai/fitImage-core-image-minimal-initramfs-loongson-2k0300-99pai-loongson-2k0300-99pai） SOC#setenv ipaddr 192.168.2.111 SOC#setenv serverip 192.168.2.110 SOC#setenv gatewayip 192.168.2.1 SOC#setenv netmask 255.255.255.0 SOC#setenv bootfile fitImage SOC#tftpboot Speed: 1000, full duplex Using ethernet@0x16020000 device TFTP from server 192.168.2.100; our IP address is 192.168.2.111 Filename 'fitImage'. Load address: 0x9000000003000000 Loading: ### 2.6 MiB/s done Bytes transferred = 25629220 (1871224 hex) Automatic boot of image at addr 0x9000000003000000 ... ## Loading kernel from FIT Image at 9000000003000000 ... Using 'conf-loongson_2k0300_99_pai_wifi.dtb' configuration Trying 'kernel-1' kernel subimage Description: Linux kernel Created: 2025-09-27 3:38:21 UTC Type: Kernel Image Compression: gzip compressed Data Start: 0x9000000003000108 Data Size: 13224263 Bytes = 12.6 MiB Architecture: LoongArch OS: Linux Load Address: 0x00200000 Entry Point: 0x01541000 Hash algo: sha1 Hash value: 072fe962b494ba68e6a8430b6773185b7147f072 Verifying Hash Integrity ... sha1+ OK ## Loading ramdisk from FIT Image at 9000000003000000 ... Using 'conf-loongson_2k0300_99_pai_wifi.dtb' configuration Trying 'ramdisk-1' ramdisk subimage Description: core-image-minimal-initramfs Created: 2025-09-27 3:38:21 UTC Type: RAMDisk Image Compression: uncompressed Data Start: 0x9000000003ca5f54 Data Size: 12364827 Bytes = 11.8 MiB Architecture: LoongArch OS: Linux Load Address: 0x06000000 Entry Point: 0x06000000 Hash algo: sha1 Hash value: 66be004f6acbd625349ba1f9523f2ec2c35219c3 Verifying Hash Integrity ... sha1+ OK Loading ramdisk from 0x9000000003ca5f54 to 0x06000000 ## Loading fdt from FIT Image at 9000000003000000 ... Using 'conf-loongson_2k0300_99_pai_wifi.dtb' configuration Trying 'fdt-loongson_2k0300_99_pai_wifi.dtb' fdt subimage Description: Flattened Device Tree blob Created: 2025-09-27 3:38:21 UTC Type: Flat Device Tree Compression: uncompressed Data Start: 0x9000000003c9cb68 Data Size: 18742 Bytes = 18.3 KiB Architecture: LoongArch Load Address: 0x0a000000 Hash algo: sha1 Hash value: 2746965a1d6ad9449404652a3d71ca406c1239a6 Verifying Hash Integrity ... sha1+ OK Loading fdt from 0x9000000003c9cb68 to 0x0a000000 Booting using the fdt blob at 0xa000000 Working FDT set to 900000000a000000 Uncompressing Kernel Image to 200000 Loading Device Tree to 900000000cbef000, end 900000000cbf6935 ... OK Working FDT set to 900000000cbef000 [ 0.000000] Linux version 6.9.0-rc7 (oe-user@oe-host) (loongarch64-loongky-linux-gcc (GCC) 14.3.0, GNU ld (GNU Binutils) 2.44.0.20250715) #1 SMP PREEMPT_DYNAMIC Sat Sep 27 03:38:21 UTC 2025 [ 0.000000] 64-bit Loongson Processor probed (LA264 Core) # ... # ... # ... [ 6.159064] Freeing unused kernel image (initmem) memory: 576K [ 6.172819] This architecture does not have kernel memory protection. [ 6.188846] Run /init as init process INIT: version 3.14 booting Starting udev [ 6.767737] udevd[114]: starting version 3.2.14 [ 6.805848] udevd[115]: starting eudev-3.2.14 [ 8.055007] mmc0: new HS200 MMC card at address 0001 [ 8.067367] mmcblk0: mmc0:0001 08A391 7.28 GiB [ 8.083172] mmcblk0: p1 [ 8.093361] mmcblk0boot0: mmc0:0001 08A391 4.00 MiB [ 8.113635] mmcblk0boot1: mmc0:0001 08A391 4.00 MiB [ 9.612852] random: crng init done INIT: Entering runlevel: 5 Configuring network interfaces... [ 9.743532] stmmaceth 16020000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0 [ 9.753605] stmmaceth 16020000.ethernet eth0: PHY [stmmac-0:01] driver [Generic PHY] (irq=POLL) [ 9.763002] stmmaceth 16020000.ethernet eth0: No Safety Features support found [ 9.770277] stmmaceth 16020000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported [ 9.780396] stmmaceth 16020000.ethernet eth0: registered PTP clock [ 9.793310] stmmaceth 16020000.ethernet eth0: configuring for phy/rgmii link mode udhcpc: started, v1.37.0 udhcpc: broadcasting discover udhcpc: sendto: No buffer space available udhcpc: broadcasting discover udhcpc: sendto: No buffer space available [ 13.878548] stmmaceth 16020000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx udhcpc: broadcasting discover udhcpc: no lease, forking to background ip: SIOCGIFFLAGS: No such device Starting syslogd/klogd: done Loongky (Yocto Project Reference Distro) 0.1.1 loongson-2k0300-99pai /dev/ttyS0 loongson-2k0300-99pai login: Loongky (Yocto Project Reference Distro) 0.1.1 loongson-2k0300-99pai /dev/ttyS0 loongson-2k0300-99pai login: root root@loongson-2k0300-99pai:~# ```