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drivers/flash: rewrite around pbl_flash devices #2047

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drivers/flash: rewrite around pbl_flash devices #2047

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6de97e4
drivers/flash: drop dead code
gmarull Sep 8, 2026
2db9d7e
drivers/flash: rewrite around pbl_flash devices
gmarull Sep 8, 2026
923c92d
drivers/flash: instantiate devices in the drivers via Kconfig
gmarull Sep 8, 2026
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7 changes: 7 additions & 0 deletions boards/asterix/defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,13 @@ CONFIG_DISPLAY=y

CONFIG_FLASH=y
CONFIG_FLASH_GD25LQ255E=y
CONFIG_FLASH_NRF5_QSPI_CLK_FREQ_HZ=8000000
CONFIG_FLASH_NRF5_QSPI_SCK_PIN=19
CONFIG_FLASH_NRF5_QSPI_CSN_PIN=17
CONFIG_FLASH_NRF5_QSPI_IO0_PIN=20
CONFIG_FLASH_NRF5_QSPI_IO1_PIN=21
CONFIG_FLASH_NRF5_QSPI_IO2_PIN=22
CONFIG_FLASH_NRF5_QSPI_IO3_PIN=23

CONFIG_OTP=y
CONFIG_OTP_FLASH=y
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2 changes: 2 additions & 0 deletions boards/getafix/defconfig
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Expand Up @@ -39,6 +39,8 @@ CONFIG_DISPLAY=y

CONFIG_FLASH=y
CONFIG_FLASH_GD25Q256E=y
CONFIG_FLASH_SF32LB52_MPI_INSTANCE=2
CONFIG_FLASH_SF32LB52_MPI_MSIZE=32

CONFIG_OTP=y
CONFIG_OTP_FLASH=y
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2 changes: 2 additions & 0 deletions boards/obelix/defconfig
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Expand Up @@ -44,6 +44,8 @@ CONFIG_DISPLAY=y

CONFIG_FLASH=y
CONFIG_FLASH_GD25Q256E=y
CONFIG_FLASH_SF32LB52_MPI_INSTANCE=2
CONFIG_FLASH_SF32LB52_MPI_MSIZE=16

CONFIG_OTP=y
CONFIG_OTP_FLASH=y
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6 changes: 4 additions & 2 deletions docs/architecture/index.md
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Expand Up @@ -104,8 +104,10 @@ alongside the allocator in `pfs.c`.
between the dumb low-level driver and the accel service that owns
buffering, clients and subsampling, so the same service code runs on any
accel part.
- **Flash** — `src/fw/drivers/flash/README.md` documents the two flash APIs:
the main one, and a coredump-only path that must work without OS services.
- **Flash** — `include/pbl/drivers/flash.h` is the single flash API: a
`struct pbl_flash_device` with driver `ops`, a generic layer that owns
locking and the erase engine, and a coredump mode that works without OS
services. See `src/fw/drivers/flash/README.md`.

## Coredumps

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