Complete flash pipeline: RAM→flash program + sysctrl reboot#34
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Complete flash pipeline: RAM→flash program + sysctrl reboot#34
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CMD_FLASH_PROGRAM (0x0A): erase + program flash from RAM in one operation. Host uploads firmware to RAM via write_memory (fast, reliable at 921600), then sends one command. Agent erases sectors, programs pages, sends per-sector/page progress. Host verifies after. Sysctrl reboot: write 0xdeadbeef to 0x12020004 (from Linux hisi-reboot driver). Clean reset that boots from flash — confirmed OpenIPC U-Boot + Linux kernel boot on hi3516ev300. End-to-end verified: - RAM upload: 16MB in 9min at 921600 - Flash program: 256 sectors + 65536 pages in 76s - Reboot: U-Boot → Linux 4.9.37-hi3516ev300 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Two-phase flash write + clean reboot. The full firmware recovery pipeline.
CMD_FLASH_PROGRAM (0x0A)
Host uploads firmware to RAM via
write_memory(16MB, 921600 baud, CRC verified), then sends one command. Agent locally:Sysctrl Reboot
Replaced watchdog reset with proper HiSilicon sysctrl reset:
*(0x12020004) = 0xdeadbeef(same as Linuxhisi-rebootdriver). Clean reset that boots from flash.End-to-End Results (hi3516ev300, W25Q128 16MB)
Confirmed: OpenIPC Linux 4.9.37-hi3516ev300 boots from flash after agent-written firmware.
Test plan
🤖 Generated with Claude Code