maksyuki
8d735aafbd
- Adjusted slot assignments in to reflect new peripheral mappings. - Updated to validate new OpenC906 configurations, including generator and profile checks. - Modified to reference the new Std-series VexiiRiscv generator. - Changed cache maintenance instructions in to align with C906 specifications. - Revised assertions in to account for internal unit removals. - Updated to reflect changes in peripheral interface counts and policies. - Added new test file to ensure preservation of the frozen HP configuration in the Std-series generator.
2.0 KiB
HP Linux Port
This directory owns the Buildroot external tree, device tree, kernel config,
and integration metadata for the fixed RV64GC T-Head OpenC906 HP core. Linux,
OpenSBI, Buildroot, toolchains, and all generated images remain below .cache/
or build/ and are not tracked.
The MVP uses OpenSBI FW_JUMP without U-Boot. Its fixed SDRAM layout is:
| Artifact | Address | Maximum size |
|---|---|---|
| OpenSBI | 0x38000000 |
512 KiB |
| DTB | 0x38080000 |
64 KiB |
| Linux Image | 0x38400000 |
12 MiB |
| initramfs | 0x39000000 |
8 MiB |
Run make setup-hp-linux to install the locked sources, then use the
hp-linux target from an HAVE_HP=YES committed profile. The initial Linux
console uses SBI; the UART1 and mailbox nodes reserve their stable platform
ABI for the native drivers.
The RV64/Sv39 acceptance image uses musl and static BusyBox with a dedicated
/init. It mounts procfs, sysfs, devtmpfs and tmpfs, verifies file I/O and child
execution, then publishes the Linux-ready mailbox message. The kernel effective
configuration and all executable ELF classes are checked during the build.
rootfs.cpio is a small uncompressed archive; the DTB uses its actual length.
The DT reserves the resident 512 KiB OpenSBI window with no-map; Linux must
not allocate it. The custom platform does not apply the generic OpenSBI FDT fixups.
It does not start the full Buildroot service sequence.
make CONFIG=configs/ci/ihp130-hp.mk hp-linux
make CONFIG=configs/ci/ihp130-hp.mk SIMU=VERILATOR hp-linux-sim
The V2 bundle uses workload 1 and four typed payloads. V1 images must be rebuilt.
Linux success goes directly to LP TEST_STATUS; GA2D/cache lifecycle is tested
by hp-smoke-sim. Logs and verdicts live in sim/verilator/hp-linux/ below
the selected variant. HP_LINUX_SIM_TIME=0 means no emulator wall-clock timeout;
successful TEST_STATUS ends the run. Interrupted/running results are not passes.
See HP platform for the ABI and RT-Thread BSP for the separate M-mode workload.