Lup Yuen Lee 李立源 @lupyuen@social.cleverlibre.org

Here's the Level 1 Page Table for #RISCV Sv39 Memory Management Unit

Article: https://lupyuen.codeberg.page/articles/mmu.html#huge-chunks-level-1

Apache #NuttX RTOS runs OK on #RISCV Sipeed M1s Dock BL808! 🎉

Source: https://www.hackster.io/lupyuen/8-risc-v-sbc-on-a-real-time-operating-system-ox64-nuttx-474358

Protecting the RAM and I/O Memory inside our #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/mmu.html#memory-protection

Apache #NuttX RTOS now supports 64-bit #RISCV Kendryte K230 (Dual-core T-Head C908) 👍

Source: https://github.com/apache/nuttx/pull/11379

Let's look inside the #RISCV Sv39 Memory Management Unit ... With Apache #NuttX RTOS on @PINE64 #Ox64 BL808 64-bit SBC

Article: https://lupyuen.codeberg.page/articles/mmu

Apache #NuttX RTOS loads the Initial RAM Disk (initrd) in 2 ways

Article: https://lupyuen.codeberg.page/articles/ox2.html#appendix-initial-ram-disk

Apache #NuttX RTOS officially supports #Ox64 BL808 #RISCV SBC @PINE64 🎉

Source: https://github.com/apache/nuttx/pull/11377

#RISCV BL808 Peripherals look mighty similar to BL602

Article: https://lupyuen.codeberg.page/articles/ox2.html#appendix-uart-driver-for-ox64

Fixing the Memory Map for Apache #NuttX RTOS on #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/ox2.html#appendix-memory-map-for-ox64

#Ox64 BL808 #RISCV SBC ... Pros and Cons 🤔

Source: https://github.com/lupyuen/nuttx-ox64

Everything that happens when Apache #NuttX RTOS boots on #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/ox2.html#appendix-nuttx-boot-flow

Adding #Ox64 BL808 #RISCV SBC to Apache #NuttX RTOS Mainline

Source: https://github.com/apache/nuttx/pull/11377

Apache #NuttX RTOS needs an Initial RAM Disk to boot on #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/ox2.html#initial-ram-disk-is-missing

Adding #RISCV BL808 SoC (T-Head C906) to Apache #NuttX RTOS Mainline

Source: https://github.com/apache/nuttx/pull/11371

#RISCV Platform-Level Interrupt Controller is strangely located in high memory for #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/ox2.html#add-plic-to-memory-map

Adding #RISCV Svpbmt and T-Head C906 MMU to Apache #NuttX RTOS

Source: https://github.com/apache/nuttx/pull/11365

Fixing the #RISCV Exceptions for Apache #NuttX RTOS on #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/ox2.html#handle-risc-v-exceptions

#RISCV Svpbmt in #Linux ... Why it's not used by T-Head C906 Memory Mgmt Unit

Source: https://patchwork.kernel.org/project/linux-riscv/patch/20210911092139.79607-3-guoren@kernel.org/#24450685

Fixing the Platform-Level Interrupt Controller ... For Apache #NuttX RTOS on #Ox64 BL808 SBC

Article: https://lupyuen.codeberg.page/articles/ox2.html#platform-level-interrupt-controller

Apache #NuttX RTOS finally boots OK on #Ox64 BL808 #RISCV SBC ... Serial Console works great too! 🎉

Source: https://github.com/lupyuen/nuttx-ox64#fix-the-uart-interrupt-for-ox64-bl808