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

#PinePhone runs the U-Boot Bootloader to boot Linux ... Let's look inside U-Boot

https://lupyuen.github.io/articles/uboot?5#u-boot-bootloader

#PinePhone Jumpdrive is perfect for exploring the Internals of PinePhone

https://lupyuen.github.io/articles/uboot?4#pinephone-jumpdrive

Highly Recommended for #PinePhone Hacking: USB Serial Debug Cable

https://lupyuen.github.io/articles/uboot?3#usb-serial-debug-cable

Inside #PinePhone is the Allwinner A64 SoC ... With 4 Cores of Arm64

https://lupyuen.github.io/articles/uboot?2#allwinner-a64-soc

What's inside the #PinePhone Bootloader ... And how we ported #NuttX RTOS to PinePhone ... All shall be explained in this article

https://lupyuen.github.io/articles/uboot?1

#NuttX RTOS on #PinePhone needs plenty of work ... Along the way we'll turn PinePhone into a valuable Learning Resource! 👍

https://lupyuen.github.io/articles/arm?18#whats-next

Here's how we analyse a #PinePhone Kernel Image with #Ghidra

https://lupyuen.github.io/articles/arm?17#appendix-analyse-pinephone-image-with-ghidra

How we load a #NuttX Image into #Ghidra for analysis

https://lupyuen.github.io/articles/arm?16#appendix-analyse-nuttx-image-with-ghidra

We might build #NuttX Drivers and Apps for #PinePhone ... In #ZigLang!

https://lupyuen.github.io/articles/arm?15#pinephone-drivers-and-apps

A Real-Time Operating System might be good for #PinePhone

https://lupyuen.github.io/articles/arm?12#pinephone-on-rtos

#NuttX RTOS might boot on #PinePhone ... With a few fixes!

https://lupyuen.github.io/articles/arm?10#will-nuttx-boot-on-pinephone

And why we're doing #PinePhone UART in Arm64 Assembly

https://lupyuen.github.io/articles/uboot?89#nuttx-uart-macros

Here's how we check #PinePhone's UART Port in Arm64 Assembly

https://lupyuen.github.io/articles/uboot?88#wait-for-uart-ready

Analysing a #PinePhone Kernel Image with #Ghidra

https://lupyuen.github.io/articles/arm?9#pinephone-image

Writing Arm64 Assembly for #PinePhone 😬

https://github.com/lupyuen/incubator-nuttx/blob/pinephone/arch/arm64/src/qemu/qemu_lowputc.S#L74-L89

Configuring the RAM for #NuttX Arm64

https://lupyuen.github.io/articles/arm?8#nuttx-ram

#Linux Kernel Header ... Used by #NuttX Arm64 too

https://lupyuen.github.io/articles/arm?7#nuttx-image

#Ghidra reveals that our #NuttX Arm64 Image begins ... With a #Linux Kernel Header!

https://lupyuen.github.io/articles/arm?7#nuttx-image

#NuttX RTOS has plenty of helpful code for Arm64

https://lupyuen.github.io/articles/arm?6#inside-nuttx-for-arm64

How we build and run #NuttX RTOS for Multi-Core Arm64

https://lupyuen.github.io/articles/arm?5#build-nuttx-multi-core