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Opensbi is now based on 1.1, U-Boot on 2022.07-rc3 and Linux on 5.19-rc1.
We don't yet support 5.19 kernel headers, so use 5.17 instead.
The incompatibility between opensbi and u-boot is now fixed, so drop
0001-arch-riscv-dts-sun20i-d1.dtsi-adjust-plic-compatible.patch.
The updated device tree in the kernel tree no longer specifies a memory
node (and the board exists in 512M/1G/2G variants, so instead use the
(otherwise identical) device tree provided by u-boot, where the memory
node is fixed up based on the detected memory size.
On riscv, the linux kernel unconditionally wants to build its bundled
dtc, so it needs flex and bison, even if it is not going to build any
DTB. We can get flex and bison either via the system ones, or we get
them as they are in LINUX_KCONFIG_DEPENDENCIES. However, relying on this
is a bit fragile, so we keep asking the kernel to build a DTB, so that
we do ensure that our host-{flex,bison} are built and in the dependency
chain of the kernel (for PPD).
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[yann.morin.1998@free.fr:
- extend on why we keep building a DTB from the kernel
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
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| patches/uboot | ||
| genimage.cfg | ||
| readme.txt | ||
Allwinner Nezha =============== Nezha is is a low-cost RISC-V 64-bit based platform, powered by an Allwinner D1 SoC. How to build ============ $ make nezha_defconfig $ make How to write the SD card ======================== Once the build process is finished you will have an image called "sdcard.img" in the output/images/ directory. Copy the bootable "sdcard.img" onto an SD card with "dd": $ sudo dd if=output/images/sdcard.img of=/dev/sdX Connect a TTL UART to the debug connector, insert the microSD card and plug in a USB-C cable to the PWR connector to boot the system.