From Fedora Project Wiki
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==== Linux kernel for Nezha D1 '''(WIP)''' ====
==== 针对哪吒 D1 的 Linux 内核 '''(正在开发中)''' ====


Using the patches from Smaeul/Ren Guo(T-HEAD)/Allwinner Engineers, enable almost all the features for Fedora,and also rebase to the latest upstream kernel master branch.
本项目使用了来自Smaeul/郭任(平头哥)/全志软件工程师的补丁，使能Fedora需要的了尽可能多的特性，并可能让主线可能 to the latest upstream kernel master branch.


===== Important reference =====
===== 重点参考 =====
* [https://github.com/c-sky/csky-linux Linux kernel source from T-Head]
* [https://github.com/c-sky/csky-linux 来自平头哥的 Linux 内核源码]
* [https://github.com/chinchilla222/nezha-d1 Allwinner Engineer's REPO]
* [https://github.com/chinchilla222/nezha-d1 全志软件工程师的仓库]


===== '''WIP for Fedora''' =====
===== '''Fedora 内核 正在开发中''' =====
[https://github.com/tekkamanninja/linux Tekkaman's Linux kernel REPO]
[https://github.com/tekkamanninja/linux Tekkaman's Linux 内核仓库]


'''Note: We are still working on this for Fedora Image'''
'''注意: 我们依然为了将其集成出 Fedora 印象文件'''


===== Build Linux Kernel for D1 =====
===== 为 D1 编译内核 =====


====== Checkout Source ======
====== 导出源码 ======
<pre>
<pre>
git clone https://github.com/tekkamanninja/linux.git
git clone https://github.com/tekkamanninja/linux.git
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====== Config ======
====== 配置 ======
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<pre>
pushd linux
pushd linux
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====== '''Cross Build''' and install ======
====== '''编译''' 并将其安装到准确的说 ======
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<pre>
# RISCV_ROOTFS_BOOT is the mount point of the boot partition in SD card  
# RISCV_ROOTFS_BOOT 是SD卡中boot mount point of the boot partition in SD card  
# RISCV_ROOTFS_BOOT=/run/media/../boot
# RISCV_ROOTFS_BOOT=/run/media/../boot
# RISCV_ROOTFS  is the mount point of the Fedora rootfs partition in SD card  
# RISCV_ROOTFS  is the mount point of the Fedora rootfs partition in SD card  

Revision as of 18:44, 6 September 2021

您有疑问?
请加入 Fedora riscv 的 IRC： #fedora-riscv[?] 位于 Libera

哪吒是一个基于全志 D1的单板计算机（SBC）. 此页用于集中所有关于Fedora on Nezha的信息.

在哪吒上启动Fedora的最简说明

预编译的镜像文件

我们已经为您准备好一个可以在全志 D1上直接运行的预编译Fedora镜像文件: Fedora-riscv64-d1-developer-xfce-with-esp-Rawhide-20210723-173234.n.0-sda.raw.zst

您只需要做以下操作:

解压镜像文件

unzstd  Fedora-riscv64-d1-developer-xfce-with-esp-Rawhide-20210723-173234.n.0-sda.raw.zst

写入一个TF卡 (必须大于或等于16GB)

sudo dd if=Fedora-riscv64-d1-developer-xfce-with-esp-Rawhide-20210723-173234.n.0-sda.raw of=/dev/sdX status=progress bs=4M

插入TF卡并上电

  • 默认是在 LCD (竖屏)上显示:
  • (可选) 转换到HDMI显示器上 (仅支持 1080p 模式竖屏)
cd /sys/kernel/debug/dispdbg
echo disp0 > name; echo switch1 > command; echo 4 10 0 0 0x4 0x101 0 0 0 8 > param; echo 1 > start;

硬件信息

IP 信息

平头哥: 玄铁 C906 RISC-V

Soc 和开发板信息

全志: D1 SoC 介绍

Sunxi: D1芯片

Sunxi: 全志哪吒开发板

软件

参考源码

最初源码来源

为了获取源码，您需要注册并登录.

Smaeul的仓库

Tekkaman用于Fedora Image的仓库

固件构建顺序

SPL(Boot0)

`boot0 或者 SPL (二级程序加载器) 是 BootROM 之后的第一个被执行的程序, 负责初始化内存控制器和加载下一级固件（来自于固态存储，闪存或者SD卡）。

使用可直接使用 Smaeul的SPL，也可以使用 Tekkaman 的fork

编译
git clone https://github.com/tekkamanninja/sun20i_d1_spl
pushd sun20i_d1_spl
git checkout origin/mainline
make CROSS_COMPILE=riscv64-linux-gnu- p=sun20iw1p1 mmc
popd
导入SD卡
pushd sun20i_d1_spl
sudo dd if=nboot/boot0_sdcard_sun20iw1p1.bin of=/dev/sdX bs=512 seek=16

OpenSBI

RISC-V 开源管理者模式(Supervisor)二进制接口, 类似 arm-TF

本文主要使用 Smaeul 的补丁, 但是会 rebase 到最新的主线上游 OpenSBI, 并修复可能出现的小问题。

Tekkaman 的 OpenSBI 仓库

编译
git clone https://github.com/tekkamanninja/opensbi -b allwinner_d1
pushd opensbi
CROSS_COMPILE=riscv64-linux-gnu- PLATFORM=generic FW_PIC=y make
popd

最终结果中的 build/platform/generic/firmware/fw_dynamic.bin 将在下面被放入 u-boot.toc1 。

U-boot

本文主要使用 Smaeul 的补丁, 但是会 rebase 到最新的主线上游 U-boot, 并使能更多的特性并添加一些运行时的默认环境变量来自动载入 GRUB。

Tekkaman 的 U-boot 仓库

编译
git clone https://github.com/tekkamanninja/u-boot -b allwinner_d1
pushd u-boot
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv nezha_defconfig
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv menuconfig
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv u-boot.bin u-boot.dtb
popd

最终生成的u-boot.bin 的 u-boot.dtb 将在下面被放入 u-boot.toc1 中.

创建 u-boot.toc1

  • 下面需要使用的配置文件 toc1.cfg 如下:
[opensbi]
file = fw_dynamic.bin
addr = 0x40000000
[dtb]
file = u-boot.dtb
addr = 0x44000000
[u-boot]
file = u-boot.bin
addr = 0x4a000000
  • 构建命令:

首先拷贝配置文件和opensbi，连同本目录中的u-boot.dtb以及u-boot.bin一起生成 u-boot.toc1。 

pushd u-boot
cp ${PATH_TO_TOC1_CFG}/toc1.cfg ${PATH_TO_OPENSBI}/fw_dynamic.bin .
tools/mkimage -T sunxi_toc1 -d toc1.cfg  u-boot.toc1
popd

导入 u-boot.toc1 到 SD 卡中

pushd u-boot
sudo dd if=u-boot.toc1 of=/dev/sdX bs=512 seek=32800

GRUB for RISC-V

请仓库这个页面来编译GRUB2 for RISCV: Architectures/RISC-V/GRUB2

你可以通过上面的页面编译出一个 grubriscv64.efi 。然后将其放入SD卡EFI分区中的EFI/目录。.

一些位于boot分区中范例文件：

/boot/uEnv.txt 目的在于让u-boot自动执行加载GRUB2并跳入执行的步骤。 

bootcmd=load mmc 0:2 0x58000000 /EFI/fedora/grubriscv64.efi; bootefi 0x58000000
bootcmd_mmc0=devnum=0; run mmc_boot


/grub.cfg GRUB的启动配置文件，和普通PC机类似。 

set default=0
set timeout_style=menu
set timeout=3

set debug="linux,loader,mm"
set term="vt100"

menuentry 'Fedora vmlinux-5.15.0-rc1' {
        linux /vmlinuz-5.15.0-rc1 earlyprintk=sunxi-uart,0x02500000 console=ttyS0,115200 console=tty0 loglevel=8  root=/dev/mmcblk0p4 selinux=0 rhgb LANG=en_US.UTF-8
        devicetree /sun20i-d1-nezha.dtb
	initrd /initramfs-5.15.0-rc1.img
}

针对哪吒 D1 的 Linux 内核 (正在开发中)

本项目使用了来自Smaeul/郭任(平头哥)/全志软件工程师的补丁，使能Fedora需要的了尽可能多的特性，并可能让主线可能 to the latest upstream kernel master branch.

重点参考
Fedora 内核 正在开发中

Tekkaman's Linux 内核仓库

注意: 我们依然为了将其集成出 Fedora 印象文件

为 D1 编译内核
导出源码
git clone https://github.com/tekkamanninja/linux.git
pushd linux
git checkout origin/allwinner_nezha_d1_devel
popd
配置
pushd linux
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv nezha_fedora_defconfig
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv menuconfig
popd
编译 并将其安装到准确的说
# RISCV_ROOTFS_BOOT 是SD卡中boot mount point of the boot partition in SD card 
# RISCV_ROOTFS_BOOT=/run/media/../boot
# RISCV_ROOTFS  is the mount point of the Fedora rootfs partition in SD card 
# RISCV_ROOTFS=/run/media/../rootfs
pushd linux
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv INSTALL_PATH=${RISCV_ROOTFS_BOOT} zinstall
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv INSTALL_MOD_PATH=${RISCV_ROOTFS} modules_install
popd

How to Build RPM package for D1

using rpmbuild on QEMU

How to boot Fedora on QEMU, please reference Architectures/RISC-V/Build Bootable Image#Run_Fedora_on_QEMU

  • Boot into Fedora on QEMU, then:
  1. prepare directory tree: Put spec file to /rpmbuild/SPECS and all source files to /rpmbuild/SOURCES
  2. For building RPM package:
#From spec file
$ rpmbuild -ba ~/rpmbuild/SPECS/pakcage.spec

#'''OR''' to build from an existing SRPM file:
$ rpmbuild -ra package.src.rpm

Please reference to How to Create a GNU Hello World RPM Package for more RPM info.

using mock with Qemu usermod

We also can build riscv64 RPMS on x86_64 machine by mock and Qemu usermode.[WIP]

How to Build your own Fedora Remix Image

Please reference to RISC-V: Build Bootable Image

How to make D1 as a Koji Builder

If we have already deployed a koji hub(like openkoji and oepkg)，then we can add a Nezha D1 as koji builder.

For example:

Please follow the simple instruction below:

  • NEED: koji CA certificate and builder authentication certificate: They are provided by koji hub admin.
  • Install necessary packages
# dnf install koji-builder
  • Modifying /etc/kojid.conf
  1. server=<koji hub XMLRPC server URL>
  2. topurl=<koji HTT file share URL>
  3. allowed_scms=<SCM repo rules>
  4. cert=<builder certificate>
  5. serverca=<koji CA certificate>
  • Trust koji hub's CA cert
cp koji_ca_cert.crt /etc/pki/ca-trust/source/anchors/
update-ca-trust
  • add host on koji hub (operated by koji hub admin)
koji add-host <hostname> riscv64
#The *hostname* should be same in authentication certificate.
  • Enable and start kojid
systemctl enable --now kojid
  • Verify koji builder online on koji hub (operated by koji hub admin):
koji list-hosts
# After initialization: The new added builder's status should be ready in the list.
  • NOTICE:* builder won't ready until free space on /var/lib/mock is greater than 8GiB, and /var/lib/mock on NFS is not supported. Thus, using a high capacity SD card for builder and resize root file system to adapt all free space on SD is necessary.
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