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HAL: extend the async (embedded-hal-async) driver layer to chip-bs21

bs2xBS21/BS2X multi-chipBS21/BS2X multi-chip

component:hal

enhancementNew feature or requestNew feature or request

priority: lowNice to have / deferredNice to have / deferred

Status: Open.

#25 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 12, 2026

Toolchain: long-term upstreaming of the custom riscv32imfc target

enhancementNew feature or requestNew feature or request

priority: lowNice to have / deferredNice to have / deferred

Status: Open.

#22 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

BS2X deeper port: linx131 ISA / ROM startup, full chip split, BLE/SLE connectivity (blocked)

bs2xBS21/BS2X multi-chipBS21/BS2X multi-chip

component:ble

help wantedExtra attention is neededExtra attention is needed

priority: mediumImportant, not blockingImportant, not blocking

Status: Open.

#21 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

BS2X drivers: confirm clock constants / SPI source-clock / GADC eFuse-trim vs fbb_bs2x + silicon

bs2xBS21/BS2X multi-chipBS21/BS2X multi-chip

component:spi

enhancementNew feature or requestNew feature or request

priority: mediumImportant, not blockingImportant, not blocking

Status: Open.

#20 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

flashboot: replace hand-written SHA256 with a vetted crate or on-chip SPACC/PKE (frozen)

enhancementNew feature or requestNew feature or request

priority: lowNice to have / deferredNice to have / deferred

Status: Open.

#19 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

flashboot: implement partition-table parse + A/B upgrade-mode selection (currently stubs)

bugSomething isn't workingSomething isn't working

enhancementNew feature or requestNew feature or request

priority: lowNice to have / deferredNice to have / deferred

Status: Open.

#18 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

HAL: complete + validate eFuse and LSADC on silicon (power-up sequences)

component:hal

enhancementNew feature or requestNew feature or request

hardwareNeeds real silicon / HIL boardNeeds real silicon / HIL board

priority: highCritical pathCritical path

Status: Open.

#17 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

HAL/I2C: poll int_done for completion (SDK-correct), not int_tx/int_rx

bugSomething isn't workingSomething isn't working

component:hal

component:i2c

priority: mediumImportant, not blockingImportant, not blocking

Status: Open.

#16 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

HAL/UART: compute the fractional divider (div_fra) instead of hardcoding 0

bugSomething isn't workingSomething isn't working

component:hal

component:uart

priority: mediumImportant, not blockingImportant, not blocking

Status: Open.

#15 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

PAC: add missing KM keyslot FLUSH_BUSY registers (0xB10-0xB1C)

bugSomething isn't workingSomething isn't working

component:pac

enhancementNew feature or requestNew feature or request

priority: mediumImportant, not blockingImportant, not blocking

Status: Open.

#14 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

PAC/SVD: per-peripheral register-coverage audit vs fbb_ws63 *_reg.h

component:pac

enhancementNew feature or requestNew feature or request

priority: mediumImportant, not blockingImportant, not blocking

Status: Open.

#13 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026

CI: regenerate ws63-pac from SVD and diff-check (reproducibility gate)

component:pac

enhancementNew feature or requestNew feature or request

priority: highCritical pathCritical path

Status: Open.

#12 In hispark-rs/hisi-riscv-rs;

· sanchuanhehe opened on Jun 11, 2026