rt-thread.git/bsp/cvitek/README.md, branch copilot/create-dfs2-documentation

bsp: cvitek: riscv: use marco for linker script

2025-04-22T01:48:53Z

Regarding link script, some memory offsets and sizes are different between the standard version and the smart version (such as "__STACKSIZE__", kernel start address, kernel memory size, etc.). Original solution is replacing link scripts and use INCLUDE, which is relatively complicated. This improvement uses macros to replace constants in the link script. The preprocessing mechanism provided by gcc is used to dynamically replace constant values during the build process. In addition, the kernel load address (the corresponding KERNEL_VADDR_START for smart) was originally configured as 0xFFFFFFC000200000, which is default value of riscv with kernelmap enabled (0xffffffc000000000) plus offset to skip over bootloader (0x200000). This caused a trouble: due to default bsp configuration is for smart, if we switched to the standard version and build, and then switched back to the smart version, the value of KERNEL_VADDR_START will be default back to 0xffffffc000000000, which is different from the original configuration value, resulting in the need to manually reconfigure it, which is easy to forget and cause problems. The current solution is to use the default value 0xffffffc000000000 in the configuration. Add offset to the code and link script when using it. This patch update the default .config and rtconfig.h for cv18xx_riscv. Signed-off-by: Chen Wang

bsp: cvitek: add howto configure pinmux in README (#10142)

2025-03-24T07:47:57Z

Add description on how to configure pinmux in menuconfig for cvitek products. Add myself to maintainer list in README.md. Signed-off-by: Chen Wang

bsp: cvitek: fix build error for aarch64

2025-02-04T02:54:57Z

This patch fixed the error "bash: mksdimg.sh: No such file or directory" when building cv18xx_aarch64. The issue is introduced by commit "bsp: cvitek: removed useless files after using rttpkgtool". In addition, in order to unify the logic with riscv as much as possible, the name of the "milkv-duo256m" directory under cv18xx_aarch64 is uniformly changed to "duo256m". This patch also improve the README, adding instructions to install xz-utils. Signed-off-by: Chen Wang

Update README.md (#9959)

2025-01-30T12:15:18Z

Fixed the issue where the absence of the u-boot-tools package caused rttpkgtools to fail to compile normally.

bsp/cvitek: print arch info. during boot-up (#9919)

2025-01-16T14:33:55Z

Duo's CPU combination is more complicated: | BSP | B/L core| ISA | UART | | ------------- | ------- |---------------- |-------| | cv18xx_risc-v | Big | RISC-V C906 | UART0 | | c906-little | Littel | RISC-V C906 | UART1 | | cv18xx_aarch64| Big | ARM Cortex A53 | UART0 | Printing ISA and big and small core information during the boot process helps developers/testers determine the CPU and serial port corresponding to the current console. In addition, the RTT logo printing has already distinguished whether it is smart, so the bsp printing no longer distinguishes. Updated README to sync with this change. Signed-off-by: Chen Wang

bsp: cvitek: remove support for spinor/spinand

2025-01-08T22:54:14Z

Confirmed with milkv, only the sd card version is sold by default for duo in the market. The spi pins are provided through stamp holes, so that users can solder the corresponding components on their baseboard during secondary development. In order to simplify maintenance work, the mainline will only support the sd-card version and no longer support spinor/spinand. Updated config files the same in this patch. Signed-off-by: Chen Wang

bsp: cvitek: doc update

2024-12-26T03:01:08Z

Updated README for cvitek. Signed-off-by: Chen Wang

bsp: cvitek: update README for ext4 rootfs (#9785)

2024-12-18T01:28:36Z

Now lwext4 package has supported ext4. Add description in README to introduce how to create rootfs of type ext4. Signed-off-by: Chen Wang

update cvitek/README.md

2024-12-04T02:37:33Z

Signed-off-by: flyingcys

bsp: cvitek: add introduction about rt-smart booting with rootfs

2024-11-27T02:45:00Z

README.md: add introduction about how to make rootfs(fat) and booting kernel with it. Plus some cleanup for this documentation. Signed-off-by: Chen Wang