lupyuen opened a new pull request, #15996: URL: https://github.com/apache/nuttx/pull/15996
## Summary This PR adds support for the Allwinner A527 Arm64 SoC. This will be used by the upcoming port of NuttX for PINE64 Yuzuki Avaota-A1 SBC. And for Arm64 PR Test Bot. Most of the code was derived from NuttX for QEMU Arm64 Kernel Build `qemu-armv8a:knsh`. [The modified code is explained here](https://lupyuen.github.io/articles/avaota#appendix-port-nuttx-to-avaota-a1) ### Modified Files in arch/arm64 `Kconfig`: Added ARCH_CHIP_A527 for A527 SoC ### New Files in arch/arm64 `include/a527/chip.h`: A527 Definitions `include/a527/irq.h`: External Interrupts `src/a527/chip.h`: Memory Map `src/a527/a527_boot.c`, `a527_boot.h`: Startup Code `src/a527/a527_initialize.c`: Power Management `src/a527/a527_lowputc.S`: UART Output `src/a527/a527_serial.c`: Serial Driver `src/a527/a527_textheap.c`: Text Heap `src/a527/a527_timer.c`: A527 Timer `src/a527/Kconfig`: A527 Config `src/a527/Make.defs`, `CMakeLists.txt`: Makefiles ### Documentation `platforms/arm64/a527/index.rst`: Added A527 SoC ## Impact This PR is needed for the upcoming port of NuttX for PINE64 Yuzuki Avaota-A1 SBC. No impact on existing code, since the source files are not used by existing code. ## Testing We tested the source files on PINE64 Yuzuki Avaota-A1 SBC. NuttX boots correctly to NSH Shell and passes OSTest: - [Board Source Code](https://github.com/lupyuen2/wip-nuttx/pull/99/files) - [NuttX Log](https://gist.github.com/lupyuen/6365762343133a843276bb87d2da17a1) - [Build Log](https://gist.github.com/lupyuen/7296022328dadcfac88a38d4b3eec892) - [Demo Video](https://youtu.be/XTDw245n5tM) ```text - Ready to Boot Primary CPU - Boot from EL2 - Boot from EL1 - Boot to C runtime for OS Initialize NuttShell (NSH) NuttX-12.4.0 nsh> uname -a NuttX 12.4.0 42c0ed4a89 Mar 13 2025 09:13:56 arm64 avaota-a1 nsh> ls -l /dev /dev: crw-rw-rw- 0 console crw-rw-rw- 0 null brw-rw-rw- 16777216 ram0 crw-rw-rw- 0 ttyS0 crw-rw-rw- 0 zero nsh> ps PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK USED FILLED COMMAND 0 0 0 FIFO Kthread - Ready 0000000000000000 0008176 0000928 11.3% Idle_Task 1 0 192 RR Kthread - Waiting Semaphore 0000000000000000 0008112 0000992 12.2% hpwork 0x40833568 0x408335b8 2 0 100 RR Kthread - Waiting Semaphore 0000000000000000 0008112 0000992 12.2% lpwork 0x408334e8 0x40833538 4 4 100 RR Task - Running 0000000000000000 0008128 0002192 26.9% /system/bin/init nsh> free total used free maxused maxfree nused nfree name 125542400 33880 125508520 53032 125484976 58 5 Kmem 4194304 245760 3948544 3948544 Page nsh> hello Hello, World!! nsh> getprime Set thread priority to 10 Set thread policy to SCHED_RR Start thread #0 thread #0 started, looking for primes < 10000, doing 10 run(s) thread #0 finished, found 1230 primes, last one was 9973 Done getprime took 162 msec nsh> ostest ... Final memory usage: VARIABLE BEFORE AFTER ======== ======== ======== arena a000 26000 ordblks 2 4 mxordblk 6ff8 1aff8 uordblks 27e8 6700 fordblks 7818 1f900 user_main: Exiting ostest_main: Exiting with status 0 nsh> ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
